PR400
™
Commercial Series
Portable Radio
Detailed Service Manual
PR400 Portable Radio
Detailed Service Manual
VHF 136-162 MHz
VHF 146-174 MHz
UHF 403-440 MHz
UHF 438-470 MHz
UHF 465-495 MHz
Motorola, Inc.
1301 E. Algonquin Road
Schaumburg, IL 60196
6881096C25-B
ii
Foreword
This manual is intended for use by service technicians familiar with portable two-way radios. It contains
service information required for the equipment de scribed and is current as of the printing date. Changes which
occur after the printing date may be incorporated by a com p let e Ma n ua l rev i sion or alt erna tively as additions
Product Safety and RF Exposure Compliance
ATTENTION!
This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements.
Before using this product, read the RF energy awareness information and operating instructions in the
Product Safety and RF Exposure booklet enclosed with your radio (Motorola Publication part numbe r
68P81095C98) to ensure compliance with RF energy exposure limits.
For a list of Motorola-approved antennas, batteries, and other accessories, visit the following web site which
lists approved accessories: http://www.motorola.com/cgiss/index.shtml.
Computer Software Copyrights
The Motorola products described in this manu al may include copyrigh ted Motorola compu ter programs stored
in semiconductor memories or other media. Laws in the United States and other countries preserve for
Motorola certain exclusive rights for co pyrighted computer programs, including, but not limited to, the
exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any
copyrighted Motorola computer programs contained in the Motorola products described in this manual may
not be copied, reproduced, modified, reverse-engineered, or distributed in any manner without the express
written permission of Motorola. Furthermore, the purchase of Motorola products shall not be deemed to grant
either directly or by implication, estoppel, or otherwise, any license under the copyrights, patents or patent
applications of Motorola, except for the normal non-exclusive license to use that arises by opera tion of law in
the sale of a product.
Document Copyrights
No duplication or distribution of this document or any portion thereof shall take place without the express
written permission of Motorola. No part of this manual may be reproduced, distributed, or transmitted in any
form or by any means, electronic or mechanical, for any purpose without the express written permission of
Motorola.
Disclaimer
The information in this document is carefully examined, and is believed to be entirely reliable. However, no
responsibility is assumed for inaccuracies. Furthermore, Motorola reserves the right to make changes to any
products herein to improve readability, function, or design. Motorola does not assume any liability arising out
of the applications or use of any product or circuit described herein; nor does it cover any license under its
patent rights nor the rights of others.
MOTOROLA and The Stylized M logo are trademarks of Motorola, Inc.
All other product or service names are the property of their respective owners.
© 2005 Motorola, Inc. All rights reserved. Printed in U.S.A.
Note:
Before using this product, read the operating instructions for safe usage contained in the
Product Safety and RF Exposure booklet enclosed with your radio.
!
C a u t i o n
Table of Contents iii
6881096C25-B June, 2005
Table of Contents
Foreword .....................................................................................................................................................ii
Computer Software Copyrights ........................................ .... ... ... ... .... ... ... ... ... .... ... ... ... .... ... ... .......................ii
Document Copyrights..................................................................................................................................ii
Disclaimer....................................................................................................................................................ii
List of Figures ................................................................................................x
List of Tables ................................................................................................xii
Related Publications...................................................................................xiii
Chapter 1 Test Equipment, Service Aids, and Service Tools.......... 1-1
1.1 Test Equipment.............................................................................................................................. 1-1
1.2 Service Aids...................... ... ... ... .... ... ... .......................................... ... ............................................. 1-2
Chapter 2 DC Power Distribution........................................................ 2-1
2.1 DC Regulation and Distribution ..................................................................................................... 2-1
Chapter 3 Controller Theory of Operation.......................................... 3-1
3.1 Controller....................................................................................................................................... 3-1
3.1.1 Microprocessor Circuitry............................ .... ... ... .......................................... ... ... .... .........3-1
3.1.1.1 Memory Usage ........ ... ... .......................................... ... ... .... ... ................................... 3-2
3.1.1.2 Control and Indicator Interface ................................................................................ 3-2
3.1.1.3 Serial Bus Control of Circuit Blocks......................................................................... 3-2
3.1.1.4 Interface to RSS Programming................................................................................ 3-3
3.1.1.5 Storage of Customer-Specific Information............................................................... 3-3
3.1.1.6 Sensing of Externally-Connected Accessories........................................................3-3
3.1.1.7 Microprocessor Power-Up, Power-Down and Reset Routine.................................. 3-3
3.1.1.8 Boot Mode Control...................................................................................................3-4
3.1.1.9 Microprocessor 7.3975 MHz Clock..........................................................................3-4
3.1.1.10 Battery Gauge..........................................................................................................3-4
3.1.2 Audio Circuitry ..................................................................................................................3-4
3.1.2.1 Transmit and Receive Low-Level Audio Circuitry................. ... ... .... ... ...................... 3-4
3.1.2.2 Audio Power Amplifier .............................................................................................3-5
3.1.2.3 Internal Microphone Audio Voice Path .................................................................... 3-5
3.1.2.4 PTT Circuits.............................................................................................................3-5
3.1.2.5 VOX Operation ........................................................................................................ 3-6
3.1.2.6 Battery Charging Through Microphone Jack........................................................... 3-6
3.1.2.7 Programming and Flashing Through Microphone Jack........................................... 3-6
iv Table of Contents
June, 2005 6881096C25-B
Module 1: VHF 136-162, 146-174 MHz
Chapter 4 136-162 MHz VHF Theory Of Operation ............................ 4-1
4.1 Introduction....................................................................................................................................4-1
4.2 VHF Receiver........... ... ... ... .... ... ... ... .... .......................................... ... ...............................................4-1
4.2.1 Receiver Front-End..................... ... ... .... ... ... ... .... ... ... .......................................... ... ... .... .....4-1
4.2.2 Receiver Back-End ........................................ .... .......................................... ... ..................4-2
4.3 VHF Transmitter............. ... .......................................... .... ... ... ... ......................................................4-3
4.3.1 Transmit Power Amplifier..................................................................................................4-3
4.3.2 Antenna Switch.................................................................................................................4-3
4.3.3 Harmonic Filter..................................................................................................................4-3
4.3.4 Antenna Matching Network...............................................................................................4-4
4.3.5 P ower Control ....................... ... ... ... ... .... ... ... .......................................... ... .... ... ... ... ... .........4-4
4.4 VHF Frequency Generation Circuitry.............................................................................................4-4
4.4.1 F ract ional-N Synthesiz er................ ... .... ... ... ... .... ... ... ... .......................................... ... .... ... ..4-5
4.4.2 Voltage Controlled Oscillator (VCO) .................................................................................4-6
4.5 Keypad...........................................................................................................................................4-7
Chapter 5 146-174 MHz VHF Theory Of Operation ............................ 5-1
5.1 Introduction....................................................................................................................................5-1
5.2 VHF Receiver........... ... ... ... .... ... ... ... .... .......................................... ... ...............................................5-1
5.2.1 Receiver Front-End..................... ... ... .... ... ... ... .... ... ... .......................................... ... ... .... .....5-1
5.2.2 Receiver Back-End ........................................ .... .......................................... ... ..................5-2
5.3 VHF Transmitter............. ... .......................................... .... ... ... ... ......................................................5-3
5.3.1 Transmit Power Amplifier..................................................................................................5-3
5.3.2 Antenna Switch.................................................................................................................5-3
5.3.3 Harmonic Filter..................................................................................................................5-3
5.3.4 Antenna Matching Network...............................................................................................5-4
5.3.5 P ower Control ....................... ... ... ... ... .... ... ... .......................................... ... .... ... ... ... ... .........5-4
5.4 VHF Frequency Generation Circuitry.............................................................................................5-4
5.4.1 F ract ional-N Synthesiz er................ ... .... ... ... ... .... ... ... ... .......................................... ... .... ... ..5-5
5.4.2 Voltage Controlled Oscillator (VCO) .................................................................................5-6
5.5 Keypad...........................................................................................................................................5-7
Chapter 6 VHF Troubleshooting Tables............................................. 6-1
6.1 Troubleshooting Table for Receiver...............................................................................................6-1
6.2 Troubleshooting Table for Synthesizer..........................................................................................6-3
6.3 Troubleshooting Table for Transmitter...........................................................................................6-4
6.4 Troubleshooting Table for Board and IC Signals...........................................................................6-7
Chapter 7 VHF Schematic Diagrams, Overlays, and Parts Lists...... 7-1
7.1 Introduction....................................................................................................................................7-1
7.1.1 Notes For All Schematics and Circuit Boards...................................................................7-1
7.1.2 Six Layer Circuit Board .....................................................................................................7-3
7.2 Speaker and Microphone Schematic.............................................................................................7-3
7.2.1 Speaker and Microphone Parts List..................................................................................7-3
Table of Contents v
6881096C25-B June, 2005
Chapter 7 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams,
Overlays, and Parts Lists................................................... 7-5
Figure 7-3. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z02-A)........... 7-5
Figure 7-4. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z02-A)..............7-6
Figure 7-5. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z02-A).............. 7-7
Figure 7-6. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z02-A).......................... 7-8
Figure 7-7. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486769Z02-A)................................................................................................. 7-9
Figure 7-8. VHF (136-162 MHz) Transmitter and Power Control Schematic
Diagram (8486769Z02-A)...............................................................................................7-10
Figure 7-9. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z02-A)...... 7-11
Figure 7-10. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z02-A)...7-12
Figure 7-11. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z02-A) ................... 7-13
Figure 7-12. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z02-A) ...................7-14
Figure 7-13. VHF (136-162 MHz) Keypad Board Schematic Diagram (8466565A03-A).................... 7-15
Figure 7-14. VHF (136-162 MHz) Board Top Side View (8486769Z02-A) ......................................... 7-16
Figure 7-15. VHF (136-162 MHz) Board Bottom Side View (8486769Z02-A)....................................7-17
Figure 7-16. VHF (136-162 MHz) Keypad Board (8466565A03-B)............................................. ... ... . 7-18
VHF (136-162 MHz) Radio Parts List (8486769Z02-A)......................................................................... 7-19
VHF (136-162 MHz) Keypad Board Parts List (8466565A03-B)..........................................................7-22
Chapter 7 VHF 136-162 MHz Schematic Diagrams, Overlays,
and Parts Lists (8486769Z04-C)....................................... 7-23
Figure 7-17. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C).........7-23
Figure 7-18. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z04-C) ...........7-24
Figure 7-19. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z04-C)............7-25
Figure 7-20. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z04-C)........................ 7-26
Figure 7-21. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486769Z04-C) .............................................................................................. 7-27
Figure 7-22. VHF (136-162 MHz) Transmitter and Power Control Schematic
Diagram (8486769Z04-C) .............................................................................................. 7-28
Figure 7-23. VHF (136-162 MHz) Controller Interconnect Schematic Diagram ( 8486769Z04-C)......7-29
Figure 7-24. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z04-C)...7-30
Figure 7-25. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C)................... 7-31
Figure 7-26. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z04-C)................... 7-32
Figure 7-27. VHF (136-162 MHz) Keypad Board Schematic Diagram (8466565A03-B).................... 7-33
Figure 7-28. VHF (136-162 MHz) Board Component Side View (8486769Z04-C)............................. 7-34
Figure 7-29. VHF (136-162 MHz) Board Solder Side View (8486769Z04-C)..................................... 7-35
Figure 7-30. VHF (136-162 MHz) Keypad Board (8466565A03-B)............................................. ... ... . 7-36
VHF (136-162 MHz) Radio Parts List (8486769Z04-C)........................... ..............................................7-37
VHF (136-162 MHz) Keypad Board Parts List (8466565A03-B)...........................................................7-40
Chapter 7 VHF 146-174 MHz (8486342Z13-C) Schematic Diagrams,
Overlays, and Parts Lists................................................. 7-41
Figure 7-31. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486342Z13-C).........7-41
Figure 7-32. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486342Z13-C) ...........7-42
Figure 7-33. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486342Z13-C)............7-43
Figure 7-34. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486342Z13-C)........................ 7-44
vi Table of Contents
June, 2005 6881096C25-B
Figure 7-35. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486342Z13-C)...............................................................................................7-45
Figure 7-36. VHF (146-174 MHz) Transmitter and Power Control Schematic
Diagram (8486342Z13-C)........................... ............................................. .... ...................7-46
Figure 7-37. VHF (146-174 MHz) Controller Interconnect Schematic Diagram (8486342Z13-C)......7-47
Figure 7-38. VHF (146-174 MHz) Microprocessor Circuitry Schematic Diagram (8486342Z13-C)...7-48
Figure 7-39. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486342Z13-C) ...................7-49
Figure 7-40. VHF (146-174 MHz) DC Regulation Schematic Diagram (8486342Z13-C) ...................7-50
Figure 7-41. VHF (146-174 MHz) Keypad Board Schematic Diagram (8466565A03-B)....................7-51
Figure 7-42. VHF (146-174 MHz) Board, Top Side (8486342Z13-C)....................................... ... .... ...7-52
Figure 7-43. VHF (146-174 MHz) Board, Bottom Side (8486342Z13-C)............................................7-53
Figure 7-44. VHF (146-174 MHz) Keypad Board (8466565A03-B) ....................................................7-54
VHF (146-174 MHz) Radio Parts List (8486342Z13-C) . ... ... .... ... ... ... .... ... ... ... ... .... ... ... ... .... ... ... .............7-55
VHF (146-174 MHz) Keypad Board Parts List (8466565A03-B) ........................................ ... ... ... ... .... ...7-58
Chapter 7 VHF 146-174 MHz Schematic Diagrams, Overlays,
and Parts Lists (8486769Z04-C)....................................... 7-59
Figure 7-45. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C) .........7-59
Figure 7-46. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486769Z04-C)............7-60
Figure 7-47. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486769Z04-C)............7-61
Figure 7-48. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486769Z04-C)........................7-62
Figure 7-49. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic
Diagram 8486769Z04-C)................................................................................................7-63
Figure 7-50. VHF (146-174 MHz) Transmitter and Power Control Schematic
Diagram (8486769Z04-C)........................... ............................................. .... ...................7-64
Figure 7-51. VHF (146-174 MHz) Controller Interconnect Schematic Diagram (8486769Z04-C)......7-65
Figure 7-52. VHF (146-174 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z04-C)...7-66
Figure 7-53. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C) ...................7-67
Figure 7-54. VHF (146-174 MHz) DC Regulation Schematic Diagram (8486769Z04-C) ...................7-68
Figure 7-55. VHF (146-174 MHz) Keypad Board Schematic Diagram (8466565A03-B)....................7-69
Figure 7-56. VHF (146-174 MHz) Board Component Side View (8486769Z04-C).............................7-70
Figure 7-57. VHF (146-174 MHz) Board Solder Side View (8486769Z04-C)........................... ... .... ...7-71
Figure 7-58. VHF (146-174 MHz) Keypad Board (8466565A03-B) ....................................................7-72
VHF (146-174 MHz) Radio Parts List (8486769Z04-C)..................................... .... ... ... ... .... ... ... ... ... .... ...7-73
VHF (146-174 MHz) Keypad Board Parts List (8466565A03-B) ........................................ ... ... ... ... .... ...7-76
Module 2: UHF 403-440, 438-470, 465-495 MHz
Chapter 8 403-440 MHz UHF Theory Of Operation............................ 8-1
8.1 Introduction....................................................................................................................................8-1
8.2 UHF Receiver ................................................................................................................................8-1
8.2.1 Receiver Front End............................................ ... ... ... .... ... ... ... .........................................8-1
8.2.2 Receiver Back End ..................... ... ... .... ... ... ... .... ... ... ... .......................................... ... .... .....8-2
8.3 UHF Transmitter ............................................................................................................................8-3
8.3.1 T ransmitter Power Amplifier..............................................................................................8-3
8.3.2 Antenna Switch.................................................................................................................8-3
8.3.3 Harmonic Filter..................................................................................................................8-3
8.3.4 Antenna Matching Network...............................................................................................8-4
8.3.5 P ower Control ....................... ... ... ... ... .... ... ... .......................................... ... .... ... ... ... ... .........8-4
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6881096C25-B June, 2005
8.4 UHF Frequency Generation Circuitry ............................................................................................ 8-4
8.4.1 Fractional-N Synthesizer ..................................................................................................8-5
8.4.2 Voltage Controlled Oscillator (VCO)................................................................................. 8-6
8.5 Keypad........................................................................................................................................... 8-7
Chapter 9 438-470 MHz UHF Theory Of Operation............................ 9-1
9.1 Introduction.................................................................................................................................... 9-1
9.2 UHF Receiver ...... ... ... ... .... ... ... ... .... .......................................... ... ................................................... 9-1
9.2.1 Receiver Front End...........................................................................................................9-1
9.2.2 Receiver Back End ........................................................................................................... 9-2
9.3 UHF Transmitter........... .... ... ... .......................................... ... .... ... ...................................................9-3
9.3.1 Transmitter Power Amplifier ...... ... .... ... ... .......................................... ... .... ... ... ................... 9-3
9.3.2 Antenna Switch........................................................... ... ... ... ............................................. 9-3
9.3.3 Harmonic Filter .................................................................................................................9-3
9.3.4 Antenna Matching Network.................................................. ... .... ... ... ... .... ... ... ... ... .... ... ... ... 9-4
9.3.5 Power Control................................................................................................................... 9-4
9.4 UHF Frequency Generation Circuitry ............................................................................................ 9-4
9.4.1 Fractional-N Synthesizer ..................................................................................................9-5
9.4.2 Voltage Controlled Oscillator (VCO)................................................................................. 9-6
9.5 Keypad........................................................................................................................................... 9-7
Chapter 10 465-495 MHz UHF Theory Of Operation.......................... 10-1
10.1 Introduction.................................................................................................................................. 10-1
10.2 UHF Receiver ................................ ... .......................................... ... .............................................. 10-1
10.2.1 Receiver Front End.........................................................................................................10-1
10.2.2 Receiver Back End .........................................................................................................10-2
10.3 UHF Transmitter .................................. ... ... .... ... ... ... .... .......................................... ... ... .................10-3
10.3.1 Transmitter Power Amplifier ......... .... ... ... ... .......................................... .... ... ... ... ... .... ... ....10-3
10.3.2 Antenna Switch.................... ... ... ... .... ... ... ........................................................................ 10-3
10.3.3 Harmonic Filter ...............................................................................................................10-3
10.3.4 Antenna Matching Network.............................................................................................10-4
10.3.5 Power Control................................................................................................................. 10-4
10.4 UHF Frequency Generation Circuitry ..........................................................................................10-4
10.4.1 Fractional-N Synthesizer ................................................................................................10-5
10.4.2 Voltage Controlled Oscillator (VCO)...............................................................................10-6
10.5 Keypad.........................................................................................................................................10-7
Chapter 11 UHF Troubleshooting Tables........................................... 11-1
11.1 Troubleshooting Table for Receiver .. ... ... ... .... ... ... ... .... ... ... ............................................. ... ...........11-1
11.2 Troubleshooting Table for Synthesizer....................... ... ... ... .... ... ... ... ... .... ... ... ... .... ... ... ... ..............11-3
11.3 Troubleshooting Table for Transmitter. ...... ..................................................................................11-4
11.4 Troubleshooting Table for Board and IC Signals......................................................................... 11-6
Chapter 12 UHF Schematic Diagrams, Overlays, and Parts Lists ... 12-1
12.1 Introduction.................................................................................................................................. 12-1
12.1.1 Notes For All Schematics and Circuit Boards................................................................. 12-1
12.1.2 Six Layer Circuit Board...................................................................................................12-3
12.2 Speaker and Microphone Schematic...... ... .... ..............................................................................12-3
12.2.1 Speaker and Microphone Parts List................................................................................ 12-3
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June, 2005 6881096C25-B
Chapter 12 UHF 403-440 MHz (8486635Z03-O) Schematic Diagrams,
Overlays, and Parts Lists................................................. 12-5
Figure 12-3. UHF (403-440 MHz) Radio Circuit Block Diagram (8486635Z03-O)..............................12-5
Figure 12-4. UHF (403-440 MHz) Receiver Front End Schematic Diagram (8486635Z03-O) ...........12-6
Figure 12-5. UHF (403-440 MHz) Receiver Back End Schematic Diagram (8486635Z03-O)............12-7
Figure 12-6. UHF (403-440 MHz) Synthesizer Schematic Diagram (8486635Z03-O) .......................12-8
Figure 12-7. UHF (403-440 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486635Z03-O) ..............................................................................................12-9
Figure 12-8. UHF (403-44 0 MH z) Trans mit te r an d Pow er Cont ro l Sche m atic
Diagram (8486635Z03-O) .................................... ... ............................................. ... .....12-10
Figure 12-9. UHF (403-440 MHz) Controller Interconnect Schematic Diagram (8486635Z03-O)....12-11
Figure 12-10. UHF (403-440 MHz) Microprocessor Circuitry Schematic Diagram (8486635Z03-O) 12-12
Figure 12-11. UHF (403-440MHz) Audio Circuitry Schematic Diagram (8486635Z03-O)..................12-13
Figure 12-12. UHF (403-440 MHz) DC Regulation Schematic Diagram (8486635Z03-O).................12-14
Figure 12-13. UHF (403-440 MHz) Keypad Board Schematic Diagram (8466565A03-B)..................12-15
Figure 12-14. UHF (403-440 MHz) Board Top Side View (8486635Z03-O).................. .... ... ... ... ....... .12-16
Figure 12-15. UHF (403-440 MHz) Board Bottom Side View (8486635Z03-O)..................................12-17
Figure 12-16. UHF (403-440 MHz) Keypad Board (8466565A03-B)..................................................12-18
UHF (403-440 MHz) Radio Parts List (8486635Z03-O) ......................................................................12-19
UHF (403-440 MHz) Keypad Board Parts List (8466565A03-B) ........................................................12-22
Chapter 12 UHF 438-470 MHz (8486348Z13-C) Schematic Diagrams,
Overlays, and Parts Lists............................................... 12-23
Figure 12-17. UHF (438-470 MHz) Radio Circuit Block Diagram (8486348Z13-C)............................12-23
Figure 12-18. UHF (438-470 MHz) Receiver Front End Schematic Diagram (8486348Z13-C) .... .... .12-24
Figure 12-19. UHF (438-470 MHz) Receiver Back End Schematic Diagram (8486348Z13-C)..........12-25
Figure 12-20. UHF (438-470 MHz) Synthesizer Schematic Diagram (8486348Z13-C)......................12-26
Figure 12-21. UHF (438-470 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486348Z13-C).............................................................................................12-27
Figure 12-22. UHF (438-470 MHz) Transmitter and Power Control Schematic
Diagram (8486348Z13-C)........................... ............................................. .... .................12-28
Figure 12-23. UHF (438-470 MHz) Controller Interconnect Schematic Diagram (8486348Z13-C)....12-29
Figure 12-24. UHF (438-470 MHz) Microprocessor Circuitry Schematic Diagram (8486348Z13-C).12-30
Figure 12-25. UHF (438-470 MHz) Audio Circuitry Schematic Diagram (8486348Z13-C).................12-31
Figure 12-26. UHF (438-470 MHz) DC Regulation Schematic Diagram (8486348Z13-C).................12-32
Figure 12-27. UHF (438-470 MHz) Keypad Option Schematic Diagram (8466565A03-B).................12-33
Figure 12-28. UHF (438-470 MHz) Board Top Side View (8486348Z13-C).......................................12-34
Figure 12-29. UHF (438-470 MHz) Board Bottom Side View (8486348Z13-C)..................................12-35
Figure 12-30. UHF (438-470 MHz) Keypad Board (8466565A03-B)..................................................12-36
UHF (438-470 MHz) Radio Parts List (8486348Z13-C).......................................................................12-37
UHF (438-470 MHz) Keypad Board Parts List (8466565A03-B) ........................................................12-40
Chapter 12 UHF 465-495 MHz (8486634Z02-O) Schematic Diagrams,
Overlays, and Parts Lists............................................... 12-41
Figure 12-31. UHF (465-495 MHz) Radio Circuit Block Diagram (8486634Z02-O)............................12-41
Figure 12-32. UHF (465-495 MHz) Receiver Front End Schematic Diagram (8486634Z02-O) .........12-42
Figure 12-33. UHF (465-495 MHz) Receiver Back End Schematic Diagram (8486634Z02-O)..........12-43
Figure 12-34. UHF (465-495 MHz) Synthesizer Schematic Diagram (8486634Z02-O) .....................12-44
Table of Contents ix
6881096C25-B June, 2005
Figure 12-35. UHF (465-495 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486634Z02-O)............................................................................................ 12-45
Figure 12-36. UHF (465-495 MHz) Transmitter and Power Control Schematic
Diagram (8486634Z02-O)............................................................................................ 12-46
Figure 12-37. UHF (465-495 MHz) Controller Interconnect Schematic Diagram (8486634Z02-O)....12-47
Figure 12-38. UHF (465-495 MHz) Microprocessor Circuitry Schematic Diagr am (8486634Z02-O) 12-48
Figure 12-39. UHF (465-495 MHz) Audio Circuitry Schematic Diagram (8486634Z02-O)................. 12-49
Figure 12-40. UHF (465-495 MHz) DC Regulation Schematic Diagram (8486634Z02-O)................. 12-50
Figure 12-41. UHF (465-495 MHz) Keypad Board Schematic Diagram (8466565A03-B) .................12-51
Figure 12-42. UHF (465-495 MHz) Board Top Side View (8486634Z02-O).......................................12-52
Figure 12-43. UHF (465-495 MHz) Board Bottom Side View (8486634Z02-O) ................................. 12-53
Figure 12-44. UHF (465-495 MHz) Keypad Board (8466565A03-B)......... ... .... ... ... ... .... ... ... ...... .... ... .. 12-54
UHF (465-495 MHz) Radio Parts List (8486634Z02-O)....................... ... ... ... .... ... ... ... .... ... ... ... ... .... ... .. 12-55
UHF (465-495 MHz) Keypad Board Parts List (8466565A03-B)........................................................12-58
INDEX................................................................................... 1-1
x Table of Contents
June, 2005 6881096C25-B
List of Figures
Figure 1-1. Programming/Test Cable............ ... ... .... ... ... ... .... ... ... ... .... ... .......................................... .....1-4
Figure 1-2. Wiring of the Connectors..................................................................................................1-4
Figure 2-1. DC Power Distribution Block Diagram..............................................................................2-1
Figure 4-1. VHF Receiver Block Diagram...........................................................................................4-1
Figure 4-2. VHF Transmitter Block Diagram.......................................................................................4-3
Figure 4-3. VHF Frequency Generation Unit Block Diagram..............................................................4-5
Figure 4-4. VHF Synthesizer Block Diagram ......................................................................................4-6
Figure 4-5. VHF VCO Block Diagram........... ... ... .... ... ... ... .... ... ... ... .... ... ... ... ... ......................................4-7
Figure 4-6. Keypad Block Diagram.....................................................................................................4-7
Figure 5-1. VHF Receiver Block Diagram...........................................................................................5-1
Figure 5-2. VHF Transmitter Block Diagram.......................................................................................5-3
Figure 5-3. VHF Frequency Generation Unit Block Diagram..............................................................5-5
Figure 5-4. VHF Synthesizer Block Diagram ......................................................................................5-6
Figure 5-5. VHF VCO Block Diagram........... ... ... .... ... ... ... .... ... ... ... .... ... ... ... ... ......................................5-7
Figure 5-6. Keypad Block Diagram.....................................................................................................5-7
Figure 7-1. Six-Layer Circuit Board: Copper Steps in Layer Sequence..............................................7-3
Figure 7-2. Speaker and Microphone Schematic................................................................................7-3
Figure 7-3. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z02-A) ...........7-5
Figure 7-4. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z02-A)..............7-6
Figure 7-5. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z02-A) ..............7-7
Figure 7-6. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z02-A)..........................7-8
Figure 7-7. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486769Z02-A).................................................................................................7-9
Figure 7-8. VHF (136-162 MHz) Transmitter and Power Control Schematic
Diagram (8486769Z02-A)..................................... ... ... .... ... ... ... .......................................7-10
Figure 7-9. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z02-A) ......7-11
Figure 7-10. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z02-A)...7-12
Figure 7-11. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z02-A) ... ... ... ....... ...7-13
Figure 7-12. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z02-A) ...................7-14
Figure 7-13. VHF (136-162 MHz) Keypad Board Schematic Diagram (8466565A03-A)....................7-15
Figure 7-14. VHF (136-162 MHz) Board Top Side View (8486769Z02-A) .........................................7-16
Figure 7-15. VHF (136-162 MHz) Board Bottom Side View (8486769Z02-A) ....................................7-17
Figure 7-16. VHF (136-162 MHz) Keypad Board (8466565A03-B) ....................................................7-18
Figure 7-17. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C) .........7-23
Figure 7-18. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z04-C)............7-24
Figure 7-19. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z04-C)............7-25
Figure 7-20. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z04-C)........................7-26
Figure 7-21. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486769Z04-C)...............................................................................................7-27
Figure 7-22. VHF (136-162 MHz) Transmitter and Power Control Schematic
Diagram (8486769Z04-C)........................... ............................................. .... ...................7-28
Figure 7-23. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z04-C)......7-29
Figure 7-24. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z04-C)...7-30
Figure 7-25. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C) ...................7-31
Figure 7-26. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z04-C) ...................7-32
Figure 7-27. VHF (136-162 MHz) Keypad Board Schematic Diagram (8466565A03-B)....................7-33
Figure 7-28. VHF (136-162 MHz) Board Component Side View (8486769Z04-C).............................7-34
Figure 7-29. VHF (136-162 MHz) Board Solder Side View (8486769Z04-C)........................... ... .... ...7-35
Figure 7-30. VHF (136-162 MHz) Keypad Board (8466565A03-B) ....................................................7-36
Figure 7-31. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486342Z13-C) .........7-41
Table of Contents xi
6881096C25-B June, 2005
Figure 7-32. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486342Z13-C) ...........7-42
Figure 7-33. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486342Z13-C)............7-43
Figure 7-34. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486342Z13-C)........................ 7-44
Figure 7-35. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486342Z13-C) .............................................................................................. 7-45
Figure 7-36. VHF (146-174 MHz) Transmitter and Power Control Schematic
Diagram (8486342Z13-C) .............................................................................................. 7-46
Figure 7-37. VHF (146-174 MHz) Controller Interconnect Schematic Diagram ( 8486342Z13-C)......7-47
Figure 7-38. VHF (146-174 MHz) Microprocessor Circuitry Schematic Diagram (8486342Z13-C)...7-48
Figure 7-39. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486342Z13-C)................... 7-49
Figure 7-40. VHF (146-174 MHz) DC Regulation Schematic Diagram (8486342Z13-C)................... 7-50
Figure 7-41. VHF (146-174 MHz) Keypad Board Schematic Diagram (8466565A03-B).................... 7-51
Figure 7-42. VHF (146-174 MHz) Board, Top Side (8486342Z13-C)................................................. 7-52
Figure 7-43. VHF (146-174 MHz) Board, Bottom Side (8486342Z13-C)............................................ 7-53
Figure 7-44. VHF (146-174 MHz) Keypad Board (8466565A03-B)............................................. ... ... . 7-54
Figure 7-45. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C).........7-59
Figure 7-46. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486769Z04-C) ...........7-60
Figure 7-47. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486769Z04-C)............7-61
Figure 7-48. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486769Z04-C)........................ 7-62
Figure 7-49. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486769Z04-C) .............................................................................................. 7-63
Figure 7-50. VHF (146-174 MHz) Transmitter and Power Control Schematic
Diagram (8486769Z04-C) .............................................................................................. 7-64
Figure 7-51. VHF (146-174 MHz) Controller Interconnect Schematic Diagram ( 8486769Z04-C)......7-65
Figure 7-52. VHF (146-174 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z04-C)...7-66
Figure 7-53. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C)................... 7-67
Figure 7-54. VHF (146-174 MHz) DC Regulation Schematic Diagram (8486769Z04-C)................... 7-68
Figure 7-55. VHF (146-174 MHz) Keypad Board Schematic Diagram (8466565A03-B).................... 7-69
Figure 7-56. VHF (146-174 MHz) Board Component Side View (8486769Z04-C)............................. 7-70
Figure 7-57. VHF (146-174 MHz) Board Solder Side View (8486769Z04-C)..................................... 7-71
Figure 7-58. VHF (146-174 MHz) Keypad Board (8466565A03-B)............................................. ... ... . 7-72
Figure 8-1. UHF Receiver Block Diagram ..........................................................................................8-1
Figure 8-2. UHF Transmitter Block Diagram ...................................................................................... 8-3
Figure 8-3. UHF Frequency Generation Unit Block Diagram .............................................................8-5
Figure 8-4. UHF Synthesizer Block Diagram......................................................................................8-6
Figure 8-5. UHF VCO Block Diagram.................................................................................................8-7
Figure 8-6. Keypad Block Diagram.....................................................................................................8-7
Figure 9-1. UHF Receiver Block Diagram ..........................................................................................9-1
Figure 9-2. UHF Transmitter Block Diagram ...................................................................................... 9-3
Figure 9-3. UHF Frequency Generation Unit Block Diagram .............................................................9-5
Figure 9-4. UHF Synthesizer Block Diagram......................................................................................9-6
Figure 9-5. UHF VCO Block Diagram.................................................................................................9-7
Figure 9-6. Keypad Block Diagram.....................................................................................................9-7
Figure 10-1. UHF Receiver Block Diagram ........................................................................................10-1
Figure 10-2. UHF Transmitter Block Diagram .................................................................................... 10-3
Figure 10-3. UHF Frequency Generation Unit Block Diagram ...........................................................10-5
Figure 10-4. UHF Synthesizer Block Diagram.................................................................................... 10-6
Figure 10-5. UHF VCO Block Diagram...............................................................................................10-7
Figure 10-6. Keypad Block Diagram...................................................................................................10-7
Figure 12-1. Six-Layer Circuit Board: Copper Steps in Layer Sequence ........................................... 12-3
Figure 12-2. Speaker and Microphone Schematic .............................................................................12-3
Figure 12-3. UHF (403-440 MHz) Radio Circuit Block Diagram (8486635Z03-O) ...... ... ... ... ... .... ... ... . 12-5
Figure 12-4. UHF (403-440 MHz) Receiver Front End Schematic Diagram (8486635Z03-O)........... 12-6
Figure 12-5. UHF (403-440 MHz) Receiver Back End Schematic Diagram (8486635Z03-O) ...........12-7
xii Table of Contents
June, 2005 6881096C25-B
Figure 12-6. UHF (403-440 MHz) Synthesizer Schematic Diagram (8486635Z03-O) .......................12-8
Figure 12-7. UHF (403-440 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486635Z03-O) ..............................................................................................12-9
Figure 12-8. UHF (403-44 0 MH z) Trans mit te r an d Pow er Cont ro l Sche m atic
Diagram (8486635Z03-O) .................................... ... ............................................. ... .....12-10
Figure 12-9. UHF (403-440 MHz) Controller Interconnect Schematic Diagram (8486635Z03-O)....12-11
Figure 12-10. UHF (403-440 MHz) Microprocessor Circuitry Schematic Diagram (8486635Z03-O) 12-12
Figure 12-11. UHF (403-440MHz) Audio Circuitry Schematic Diagram (8486635Z03-O)..................12-13
Figure 12-12. UHF (403-440 MHz) DC Regulation Schematic Diagram (8486635Z03-O).................12-14
Figure 12-13. UHF (403-440 MHz) Keypad Board Schematic Diagram (8466565A03-B)..................12-15
Figure 12-14. UHF (403-440 MHz) Board Top Side View (8486635Z03-O).................. .... ... ... ... ....... .12-16
Figure 12-15. UHF (403-440 MHz) Board Bottom Side View (8486635Z03-O)..................................12-17
Figure 12-16. UHF (403-440 MHz) Keypad Board (8466565A03-B)..................................................12-18
Figure 12-17. UHF (438-470 MHz) Radio Circuit Block Diagram (8486348Z13-C)............................12-23
Figure 12-18. UHF (438-470 MHz) Receiver Front End Schematic Diagram (8486348Z13-C) .... .... .12-24
Figure 12-19. UHF (438-470 MHz) Receiver Back End Schematic Diagram (8486348Z13-C)..........12-25
Figure 12-20. UHF (438-470 MHz) Synthesizer Schematic Diagram (8486348Z13-C)......................12-26
Figure 12-21. UHF (438-470 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486348Z13-C).............................................................................................12-27
Figure 12-22. UHF (438-470 MHz) Transmitter and Power Control Schematic
Diagram (8486348Z13-C)........................... ............................................. .... .................12-28
Figure 12-23. UHF (438-470 MHz) Controller Interconnect Schematic Diagram (8486348Z13-C)....12-29
Figure 12-24. UHF (438-470 MHz) Microprocessor Circuitry Schematic Diagram (8486348Z13-C).12-30
Figure 12-25. UHF (438-470 MHz) Audio Circuitry Schematic Diagram (8486348Z13-C).................12-31
Figure 12-26. UHF (438-470 MHz) DC Regulation Schematic Diagram (8486348Z13-C).................12-32
Figure 12-27. UHF (438-470 MHz) Keypad Option Schematic Diagram (8466565A03-B).................12-33
Figure 12-28. UHF (438-470 MHz) Board Top Side View (8486348Z13-C).......................................12-34
Figure 12-29. UHF (438-470 MHz) Board Bottom Side View (8486348Z13-C)..................................12-35
Figure 12-30. UHF (438-470 MHz) Keypad Board (8466565A03-B)..................................................12-36
Figure 12-31. UHF (465-495 MHz) Radio Circuit Block Diagram (8486634Z02-O)............................12-41
Figure 12-32. UHF (465-495 MHz) Receiver Front End Schematic Diagram (8486634Z02-O) .........12-42
Figure 12-33. UHF (465-495 MHz) Receiver Back End Schematic Diagram (8486634Z02-O)..........12-43
Figure 12-34. UHF (465-495 MHz) Synthesizer Schematic Diagram (8486634Z02-O) .....................12-44
Figure 12-35. UHF (465-495 MHz) Voltage Controlled Oscillator Schematic
Diagram (8486634Z02-O) ............................................................................................12-45
Figure 12-36. UHF (465-495 MHz) Transmitter and Power Control Schematic
Diagram (8486634Z02-O) .................................... ... ............................................. ... .....12-46
Figure 12-37. UHF (465-495 MHz) Controller Interconnect Schematic Diagram (8486634Z02-O)....12-47
Figure 12-38. UHF (465-495 MHz) Microprocessor Circuitry Schematic Diagram (8486634Z02-O) 12-48
Figure 12-39. UHF (465-495 MHz) Audio Circuitry Schematic Diagram (8486634Z02-O).................12-49
Figure 12-40. UHF (465-495 MHz) DC Regulation Schematic Diagram (8486634Z02-O).................12-50
Figure 12-41. UHF (465-495 MHz) Keypad Board Schematic Diagram (8466565A03-B)..................12-51
Figure 12-42. UHF (465-495 MHz) Board Top Side View (8486634Z02-O).................. .... ... ... ... ....... .12-52
Figure 12-43. UHF (465-495 MHz) Board Bottom Side View (8486634Z02-O)..................................12-53
Figure 12-44. UHF (465-495 MHz) Keypad Board (8466565A03-B)..................................................12-54
Table of Contents xiii
6881096C25-B June 6, 2005
List of Tables
Table 1-1. Recommended Test Equipment.......................................................................................1-1
Table 1-2. Service Aids ..................................................................................................................... 1-2
Table 1-3. Recommended Service Tools.......................................................................................... 1-2
Table 2-1. Voltage Regulators........................................................................................................... 2-2
Table 3-1. Radio Memory Requirements........................................................................................... 3-1
Table 3-2. SPI Bus Signal Definitions................................................................................................ 3-2
Table 6-1. Troubleshooting Table for Receiver................................................................................. 6-1
Table 6-2. Troubleshooting Table for Synthesizer............................................................................. 6-3
Table 6-3. Troubleshooting Table for Transmitter............................................................................. 6-4
Table 6-4. Troubleshooting Table for Board and IC Signals ............................................................. 6-7
Table 11-1. Troubleshooting Table for Receiver...............................................................................11-1
Table 11-2. Troubleshooting Table for Synthesizer...........................................................................11-3
Table 11-3. Troubleshooting Table for Transmitter........................................................................... 11-4
Table 11-4. Troubleshooting Table for Board and IC Signals ........................................................... 11-6
Related Publications
PR400 Basic Service Manual .........................................................................................................6881096C24
PR400 Non-Display User Guide.......... ... ... .... ... ... ... ... .... ... ... ... .......................................... .... ... ... ....6881096C27
PR400 Half-Keypad User Guide.....................................................................................................6881096C26
PR400 Full-Keypad User Guide......................................................................................................6881096C23
Product Safety and RF Exposure Compliance ...............................................................................6881095C98
PR400 User Guide CDROM ..............................................................................................................HKLN4219
xiv Table of Contents
June, 2005 6881096C25-B
Chapter 1 Test Equipment, Service Aids, and
Service Tools
1.1 Test Equipment
Table 1-1 lists test equipment required to service the PR400 Radios.
Table 1-1. Recommended Test Equipment
Motorola Part No. Description Characteristics Application
R2600 series System analyzer This item will substitute for
items with an asterisk (*)
Frequency/deviation meter and
signal generator for wide-range
troubleshooting and alignment
*R1074A Fluke 87 digital multi-
meter
True RMS metering,
200 kHz frequency
counter, 32-segment bar
graph with backlit display
Digital voltmeter is recommended for AC/DC voltage and
current measurements
Fluke 85 RF probe 500 MHz, 30 VAC max Use with Fluke 87 digital multi-
meter for RF voltage measurements.
*R1377A AC voltmeter 1 mV to 300 mV, 10 mega-
ohm input impedance
Audio voltage measurements
R1611A Dual channel
100 MHz oscilloscope (Agillent)
Two-channel, 100 MHz
bandwidth, 200 M sample
rate/sec, 2 MB memory/
channel
Waveform measurements
S1339A RF millivolt meter 100 µV to 3V RF, 10 kHz to
1 GHz frequency range
RF level measurements
*R1013B or
*R1370A
SINAD meter or
SINAD meter with
RMS
Without RMS audio voltmeter or
With RMS audio voltmeter
Receiver sensitivity measurements
June, 2005 6881096C24-B
1-2 Test Equipment, Service Aids, and Service Tools: Service Aids
1.2 Service Aids
Ta b le 1- 2 lists service aids recommended for working on the PR400 Radios. While all of these items
are available from Motorola, most are standard shop equipment items, and any equivalent item
capable of the same performance may be substituted for the item listed.
Table 1-2. Service Aids
Motorola Part
No.
Description Application
RLN4460 Por table Test Set Enables connection to the audio/accessory jack.
Allows switching for radio testing.
RLN4510 Battery Interface Regulates DC current and voltage between radio and
power supply.
RVN4191 Customer Programming Soft-
ware and Global Tuner Software
on CD Rom
Program customer option and channel data.
AAPMKN4004 Programming Test Cable Connects radio to RIB (PLN4008).
AAPMKN4003 Radio-to-Radio Cloning Cable
Allows a radio to be duplicated from a master radio by
transferring programmed data from the master radio to
the other.
RLN4008 Radio Interface Box Enables communications between the radio and the
computer’s serial communications adapter.
5886564Z01 RF Adaptor Adapts radio’s antenna port to BNC cabling of test
equipment.
0180305K08 Shop Battery Eliminator Interconnects radio to power supply.
HSN9412 Wall-Mounted Power Supply Used to supply power to the RIB (120 VAC).
3080369B71 or
3080369B72
Computer Interface Cable Use B72 for the IBM PC AT or newer (9-pin serial
port). Use B71 for older models (25-pin serial port).
Connects the computer’s serial communications
adapter to the RIB (PLN4008).
6686533Z01 Knob Remover/Chassis Opener Used to remove the front cover assembly.
HKN9216 IBM Computer Interface Cable Connection from computer to RIB.
8180384N65 Housing Eliminator Allows testing of the radio outside of the housing.
Table 1-3. Recommended Service Tools
Motorola Part
No.
Description Application
RSX4043A TORX screwdriver Tighten and remove chassis screws
6680387A70 T6 TORX bit Removable TORX screwdriver bit
R1453A Digital readout solder station Digitally controlled soldering iron
RLN4062A Hot air workstation, 120 V Tool for hot air soldering/desoldering of surface
mounted integrated circuits
6881096C24-B June 6, 2005
Test Equipment, Service Aids, and Service Tools: Service Aids 1-3
0180386A78 Illuminated magnifying glass with
lens attachment
Illumination and magnification of components
0180302E51 Master lens system
0180386A82 Anti-static grounding kit Used during all radio assembly and disassembly pro-
cedures
6684253C72 Straight prober
6680384A98 Brush
1010041A86 Solder (RMA type), 63/67,
0.5mm diameter, 1 lb. spool
0180303E45 SMD tool kit (included with
R1319A)
R1319A ChipMaster (110 V) Surface mount removal and assembly of surface
mounted integrated circuits and/or rework station
shields. Includes 5 nozzles.
R1321A ChipMaster (220 V)
ChipMaster Nozzles:
6680332E83 PLCC-28* nozzle
Soldering and Un-soldering IC’s
6680332E82 PLCC-44* nozzle
6680332E94 PLCC-52 nozzle
6680332E96 PLCC-84 nozzle
6680334E67 QFP-160 nozzle
6680333E46 SOL-18 nozzle
6680332E84 SOIC-20 nozzle
6680332E87 SOL-20J nozzle
6680333E45 SOL-24 nozzle
6680333E55 TSOP-64 nozzle
* Included with ChipMaster packages
Table 1-3. Recommended Service Tools (Continued)
Motorola Part
No.
Description Application
June, 2005 6881096C24-B
1-4 Test Equipment, Service Aids, and Service Tools: Service Aids
Programming/Test Cable
Figure 1-1. Programming/Test Cable
Figure 1-2. Wiring of the Connectors
25 POSITION
FEMALE CONNECTOR
25 POSITION
MALE CONNECTOR
36.0”
CABLE
36.0”
CABLE
P1
P2 P3
P2
25 pin Male D Connector
Components molded inside
1
5
24
7
20
8
15
16
9
47
ohm
33K
+
1UF,16V 5%
Orange
Blue
White
Spiral
Yellow
P1
2.5mm stereo and
3.5mm
1
2
5
3
4
3.5mm Tip
(Speaker +)
3.5mm
Sleeve
2.5mm Tip
(Microphone)
2.5mm
2.5mm
Center
P3
25 pin Female
D Connector
1
15
4
11
1
2
3
4
5
3.5mm mono
2.5mm stereo
To Test Box
To Test Box
Chapter 2 DC Power Distribution
2.1 DC Regulation and Distribution
A block diagram of the DC power distribution throughout the radio is shown in Figure 2-1.
Figure 2-1. DC Power Distribution Block Diagram
Battery voltage enters at connector J301 and is routed through fuse F301 to become USWB+.
VR301 protects against ESD, and D301 provides reverse polarity protection. This voltage is routed
to:
• FET switch Q170 in the TX power control circuit (turned on during transmit)
• TX power amplifier module U110 (via R150)
• input pins of regulators U310, U320 and U330
• FET switch Q493 (turned on whenever the radio is on)
• on-off switch S444 (part of on-off-volume control) to become SWB+
SWB+
Fuse
Low Battery
Detect
Antenna
Switch
PA, Driver
PCIC(ALC)
LI Ion
3.3V
Reg.
Audio
Power
Amplifier
ASFIC_CMP
VCOBIC
FRACTN
LCD
Driver
5V
MECH.
SWB+
UNSWB+
Vdda
Accessories
20 pin Connector
Keypad/Option Board
Vddd
MCU, ROM
and EEPROM
Tx
Led
Control
7.5V
Battery
Vddd
Regulator
Vdda
Regulator
5V
Regulator
On/Off
Switch
RF AMP, IF AMP,
RX/TX Buffers
IFIC
June, 2005 6881096C25-B
2-2 DC Power Distribution: DC Regulation and Distribution
When the radio is turned on, SWB+ is present and is applied to:
• transistor switch Q494 (pins 1 and 6) which turns on Q4 93
• RX audio power amplifier U490
• voltage divider R420/R421 and port PE0, a microprocessor A/D input which measures battery
voltage and radio on/off status
The output of FET switch Q493 is applied to the control pins of regulators U310, U320 and U330,
turning them on. The following regulators are used:
The 5 V source is applied to:
• RX back end circuitry
• synthesizer super filter input and charge pump supply
• RED/GRN LEDs
• RX audio buffer U510
• portions of ASFIC U451
The 5 V source is also applied to FET switches Q311 and Q312. Q311 is turned on by Q313 when
RX_ENA (from U401 pin 49) is high, and supplies the "5R" source to the RF front end stages Q21Q22, and the VCO RX injection buffer Q280. Q312 is turned on by Q313 when TX_ENA (from U40 1
pin 50) is high, and supplies the "5T" source to the first transmitter stage Q100.
The digital 3.3 volt source from U320 (D_3.3 V) is applied to:
• microprocessor U401
• EEPROM U402
•S-RAM U403
• flash ROM U404
The 3 V regulated source from U330 is applied to:
• synthesizer IC U201
• VCO/buffer IC U251
• portions of ASFIC U451
• microphone bias circuitry
While the radio is turned on, port PH3 (U401 pin 44) is he ld high. When the radio is turn ed off, SWB+
is removed and port PE0 (U401 pin 67) goes low, initiating a power-down routine. Port PH3 (pin 44)
remains high, keeping the voltage regulators on via Q493 and Q494, until the operating state of the
radio has been stored in EEPROM and other turn-off data functions have been completed. PH3 then
goes low, turning off Q494 and Q493, and all regulated voltages are removed.
Table 2-1. Voltage Regulators
Reference No. Description Type
U310 5 V Regulator TK71750S
U320 Digital 3.3 V Regulator LP2986
U330 3 V Regulator TK71730S
Chapter 3 Controller Theory of Operation
3.1 Controller
The controller provides the following functions:
• interface with controls and indicators
• serial bus control of major radio circuit blocks
• encoding and/or decoding of selective signaling formats such as PL, DPL , MDC1200 a nd QuikCall II
• interface to CPS programming via the microphone connector
• storage of customer-specific information such as channel frequencies, scan lists, and signaling
codes
• storage of factory tuning parame ters such as tra nsmitter powe r and de viation, r eceiver squelch
sensitivity, and audio level adjustments
• power-up, power-down and reset routines
Figure 7-31 (VHF) shows the interconnection between the controller and the various other radio
blocks. Figure 7-37 show the connections between the following circuit areas which comprise the
controller block:
• microprocessor circuitry
• audio circuitry
• DC regulation circuitry (refer to Chapter 2, DC Regulations and Distribution.)
• rotary and pushbutton controls and switches
• option board interface
The majority of the circuitry described below is contained in the (VHF) Mi croprocessor Circuitry
schematic diagrams (Figure 7-38). Portions are also found in the Audio and DC Regulation
schematics (Figures 7-39 and 7-40).
3.1.1 Microprocessor Circuitry
The microprocessor circuitry includes microprocessor (U401) and associated EEPROM, S-RAM (not
used in PR400 models), and Flash ROM memories. The following memory IC's are used:
Table 3-1. Radio Memory Requirements
Reference No. Description Type Size
U402 Serial EEPROM AT25128 16K x 8
U403 Static RAM (not used)
U404 Flash ROM AT49LV001N_70 V 128K x 8
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3-2 Controller Theory of Operation: Controller
3.1.1.1 Memory Usage
Radio operation is controlled by software that is stored in external Flash ROM memory (U404).
Radio parameters and customer specific information is stored in external EEPROM (U402). The
operating status of the radio is maintained in RAM located within th e microprocessor . When the radio
is turned off, the operating status of the radio is written to EEPROM before operating voltage is
removed from the micropro cessor. See secti on “3.1.1.7 Microprocessor Power-Up, Power-Down and
Reset Routine” on page 3-3 for a discussion of the power-down routine.
Parallel communication with U403 and U404 is via:
• address lines A(0)-A(16), from U401 port F ADDR0-ADDR13 and port G XA14-XA16
• data lines D(0)-D(7), from U401 port C DATA0-DATA7
• chip-select for U403, from PH6 (U401 pin 41)
• chip-enable for U404, from PH7 (U401 pin 38)
• output enable for U404, from PA7 (U401 pin 86)
• write-enable for both U403 and U404, from PG7_R/W (U401 pin 4)
Serial communication with U402 is via:
• the SPI bus (see section “3.1.1.3 Serial Bus Control of Circuit Blocks” on page 3-2)
• chip-select for U402, from PD6 (U401 pin 3)
3.1.1.2 Control and Indicator Interface
Ports PI3 and PI4 are outputs which control the top-mounted LED indicator. When PI3 is high, the
indicator is red. When PI4 is high, the indicator is green. When both are high, the indicator is amber.
When both are low, the indicator is off.
Pressing the side-mounted PTT button (S441) provides a lo w to port PJ0 (U401 pin 71), which
indicates PTT is asserted. Side-mounted option buttons 1 and 2 (S442 and S443) are connected to
Ports PJ6 (pin 77) and PJ7 (pin 78), respectively.
3.1.1.3 Serial Bus Control of Circuit Blocks
The microprocessor communicates with other circuit blocks via a SPI (serial peripheral interface) bus
using ports PD2 (data into uP), PD3 (data out of uP) and PD4 (clock). The signal names and
microprocessor ports are defined in Table 3-2.
These signals are routed to:
• the audio filter IC (U451) to control internal functions such as gain change betwee n 25 kHz and
12.5 kHz channels, transmit or receive mode, volume adjustment, etc.
• the synthesizer IC U201 to load receive and transmit channel frequencies
• option board connector J460-1 for internal option configuration and control
• serial EEPROM U402 (both SPI_DATA_IN and SPI_DATA_OUT are used).
Table 3-2. SPI Bus Signal Definitions
Signal Name Microprocessor Port Microprocessor Pin
SPI-DATA_IN PD2-MISO U401 Pin 99
SPI_DATA_OUT PD3-MOSI U401 pin 100
SPI_CLK PD4-SCK U401 pin 1
6881096C25-B June, 2005
Controller Theory of Operation: Controller 3-3
In order for each circuit block to respond only to the data intended for it, each peripheral has its own
chip select (or chip enable) line. The device will only respond to data when its enable line is pulled
low by one of the microprocessor ports, as follows:
• port PD5 (U401 pin 2) for the audio filter IC
• port PH0 (U401 pin 47) for the synthesizer IC
• port PH4 (U401 pin 43) for the option board/display enable
• port PD6 (U401 pin 3) for the serial EEPROM.
3.1.1.4 Interface to RSS Programming
The radio can be programmed, or the programmed information can be read, using a computer with
CPS (Customer Programming Software) connected to the radio via a RIB (radio interface box) or
with the RIB-less cable. Connection to the radio is made via the microphone connector (part of
accessory connector J471). The SCI line connects the programming contact (J471 pin 6) to ports
PD0_RXD (data into uP, pin 97) and PD1_TXD (data out of uP, pin 98). Transistor Q410 isolates the
input and output functions by allowing PD1 to pull the line low , but does not af fect incoming data from
being read by port PD0. This isolation allows high-speed 2-wire pr ogramm ing via TP401 and TP402
for factory programming and tuning.
3.1.1.5 Storage of Customer-Specific Information
Information that has been programmed using CPS, such as channel frequencies or selective
signaling codes, are stored in the external EEPROM, where it is retained permanently (unless
reprogrammed) without needing DC power applied to the microprocessor.
3.1.1.6 Sensing of Externally-Connected Accessories
Port PJ1 is used to detect the presence of externally connecte d accessor ies. Port PJ1 (U401 pin 72)
is normally low, unless accessories (lapel speaker microphone, lightweight headset, etc.) are used
with the radio. This port is used to detect an accessory PTT or auto sensing of a VOX accessory.
If VOX is programmed into the radio channe l codeplug information, and PJ1 is high during power-u p,
the radio will activate VOX operation. If a low is present at port PJ1 during power-up, the radio will
use this port as an external PTT indicator.
3.1.1.7 Microprocessor Power-Up, Power-Down and Reset Routine
On power-up, the microprocessor is held in reset until the digital 3.3 V regulator (U320 pin 5)
provides a stable supply voltage. Once the dig ital supply reaches steady st ate and releases the re set
line (U320 pin 7), the microprocessor begins to start up. The ASFIC_CMP (U451) has already
started running and is providing the startup clock to the microprocessor. After reset release by all
circuits, the software within the microprocessor begins executing port assignments, RAM checking,
and initialization. A fixed delay of 100 ms is added to allow the audio circuitry to settle. Next, an alert
beep is generated and the steady state software begins to execute (buttons are read, radio circuits
are controlled).
When the radio is turned off, SWB+ is removed and port PE0 (U401 pin 67) goes low, initiating a
power-down routine. Port PH3 (pin 44) remains high, keeping the voltage regulators on via Q493
and Q494, until the operating state of the radio has been stored in EEPROM. PH3 then goes low,
and all regulated voltages are removed.
June, 2005 6881096C25-B
3-4 Controller Theory of Operation: Controller
The microprocessor reset line (pin 94) can be controlled directly by the digital 3.3 V regulator (U320
pin 7), the microphone jack (part of accessory connector J471) via Q472 and Q471, and the
microprocessor itself. U320 pulls the reset line low if the digital 3.3 V source loses regulation. This
prevents possible MOS latch-up or overwriting of registers in the microprocessor because the reset
line is higher in voltage than the microprocessor VDD ports (U401 pins 12, 39, 59, 88). The
microprocessor can drive the reset line low if it detects a fault condition such as an expired watchdog
timer, software attempting to execute an infinite loop, unplanned hardware inputs, static discharge,
etc. Finally, the Q471 can pull the reset line low during use of the programming cable and CPS by
the application of a sufficiently negative voltage to the microphone connector tip contact (J471 pin 4),
however this reset method is not utilized.
3.1.1.8 Boot Mode Control
When power-up reset occurs, the microprocessor will boot into either normal or flash mode
depending on the logic level of ports MODA (U401 pin 58) a nd MODB (pin 57). T he Flash Adapter is
a programming accessory which provides negative 9 volts dc via a 1K resistor to microphone
connector J471 pin 4. This turns on Q471 and Q472 via D471 and VR472, pulling MODA and MODB
low and allowing booting in the flash mode by cycling power to reset the radio. Software upgrades
can then performed by loading the new software code into Flash ROM U404.
3.1.1.9 Microprocessor 7.3975 MHz Clock
The 7.3975 MHz clock signal (uP_CLK) is provided from the ASFIC_CMP (U451 pin 28). Upon
startup the 16.8MHz crystal provides the signal to the ASFIC_CMP, which sends out the uP_CLK at
3.8MHz until a steady-state condition is reached and the clock is increased to 7.3975MHz for the
microprocessor.
3.1.1.10 Battery Gauge
Various battery types are available having different capacities. The different battery types contain
internal resistors connected from the BATT_CHARGE contact to ground (which is routed to the
microprocessor as BATT_DETECT). A voltage divider is formed with R255 producin g a different DC
voltage for each battery type, which is read by microprocessor port PE2 (pin 65). This allows the
software to recognize the battery chemistry being used and adjust the battery gauge fo r best
accuracy.
3.1.2 Audio Circuitry
3.1.2.1 Transmit and Receive Low-Level Audio Circuitry
The majority of RX and TX audio processing is performed by U451, the Audio Filter IC
(ASFIC_CMP), which provides the following functions:
• Tone PL/Digital PL encode and decode filtering
• Tone PL/Digital PL rejection filter in RX audio path
• TX pre-emphasis amplifier
• TX audio modulation limiter
• Post-limiter (splatter) filter
• TX deviation adjust (digitally-controlled attenuators)
• Programmable microphone gain attenuator
• RX audio volume control (digitally controlled attenuator)
• Carrier squelch adjustment (digitally controlled attenuator)
• Microprocessor output port expansion
6881096C25-B June, 2005
Controller Theory of Operation: Controller 3-5
• 2.5 volt dc reference source
• Microprocessor clock generation (from the 16.8 MHz reference oscillator input)
The parameters of U451 that are programmable are selected by the microprocessor via the CLOCK
(U451 pin 21), DATA (U451 pin 22) and chip enable (U451 pin 20) lines.
RX audio buffer U510 amplifies the audio level from the DEMOD output of the IFIC before being
applied to the audio filter IC input (DISC, U451 p in 2). The buffer is DC coupled to avoid corruption of
low-frequency data waveforms such as DPL. Because such waveforms are polarity sensitive, this
buffer is configured as a single-stage inverting amplifier (U510-1 only) for VHF models where highside first injection is used, or is configured as a two-stage non-inver ting amplifie r (U510-1 and -2 ) for
UHF models using low-side first injection. The gain of the buffer is 1.5 times or 3.5 dB.
Volume adjustment is performed by a digital attenuator within U451. The volume control (10KO, part
of S444) is connected to D_3.3 V and ground via R506 and R507. When the volume control is
rotated, it varies the dc volt age applie d to micr oprocessor A/D input por t PE1 (U4 01 pin 66) between
approximately 0 volts dc at minimum volume to 3.3 volts dc at maximum volume. Depending on this
voltage, the appropriate setting of the digital volume attenuator is selected. This technique is less
susceptible to noise than a conventional analog volume control.
3.1.2.2 Audio Power Amplifier
The audio power amplifier IC U490 amplifies receiver audio from U451 pin 41 to a level sufficient to
drive a loudspeaker. U490 is a bridge amplifier delivering 3.46 volts rms between pins 5 and 8
without distortion, which is sufficient to develop 500 milliwatts of audio power into the internal 24 ohm
speaker or an external 24 ohm load. The audio power amplifier is muted whenever speaker audio is
not required to reduce current drain. The audio amp is muted when U451 pin 14 is low. When U451
pin 14 is high, U490 pin 1 is pulled low by Q490, enabling the audio amplifier.
Because the power amplifier is a bridge-type, neither speaker terminal is gro unded. Care should be
taken that any test equipment used to measure the speaker audio voltage does not ground either
speaker output terminal, otherwise damage to the audio power amplifier IC may result. When a 24ohm load resistor is used it should be connected between the tip and the sleeve of accessory jack
J471 (3.5mm port), never to ground. External SPKR plug insertion mechanically disconnects the
internal speaker. Voltage measurements using test equipment that is not isolated from ground may
be made from one side of the speaker or load r esistor (either the tip or the sle eve of J471) to chassis
ground, in which case the voltage indicated will be one half of the voltage applied to the speaker or
load resistor . The Motorola RLN44 60 Port able Test Set and AAPMKN4004 Programming Test Cable
provide the proper interface between the radio's ungrounded audio output and ground-referenced
test equipment.
3.1.2.3 Internal Microphone Audio Voice Path
Microphone audio from internal microphone is routed from J470-1 via C475, L471, and C470 to the
ASFIC_CMP mic audio input (MICINT, U451 pin 46). During transmit, Q470 is turned on by a low at
U451 pin 35, providing dc bias for the internal MIC via R478. External MIC plug insertion
mechanically disconnects the internal microphone. External MIC audio is coupled through L4 71 and
C470 to the mic audio input. An input level of 10 mV at J471 pin 4 produces 200 mV at the output of
U451 pin 40, which corresponds to 60% deviation.
3.1.2.4 PTT Circuits
The internal side-mounted PTT switch (S441) is sensed directly by microprocessor port PJ0 (U401
pin 71). External mic PTT is sensed by measuring the current drawn through the accessory
connector (J471-4) by the mic cartridge (which is in series with the accessory PTT switch). This
current is drawn through the base (pin 5) and emitter (pin 4) of a transistor in Q470, causing its
collector (pin 3) to supply a logic-high to microprocessor port PJ1 (pin 72).
June, 2005 6881096C25-B
3-6 Controller Theory of Operation: Controller
3.1.2.5 VOX Operation
VOX audio accessories do not have a PTT switch. Instead, the mic cartridge is wired directly from
J471-4 to ground. If the radio has been programmed for VOX operation an d the VOX accessory is
plugged in prior to turning the radio on, the current drawn by the cartridge will turn on Q470 (pins 34-5) and a logic high will be seen at port PJ1 at turn-on. The microprocessor then assumes VOX
operation, with PTT controlled by the presence of audio at the mic cartridge. A dc voltage
proportional to the audio level at the input of the ASFIC_CMP (U451 pin 46) is fed to a n A/D in put of
microprocessor U401 (pin 62). During VOX operation, PT T is activate d whe n the dc leve l exceeds a
preset threshold.
3.1.2.6 Battery Charging Through Microphone Jack
A wall-type charging power supply may be connected to the 2.5 mm microphone jack (p art of
accessory connector J451). The voltage present at the tip contact (pin 4) is app lied to the center
charging contact of the battery via diode D470. Another diode, internal to the battery, applies this
voltage to the (+) battery terminal. Only the recommended charger and battery type should be
charged in this manner.
Different battery types contain internal resistors connected from the BATT_CHARGE contact to
ground, which is routed to the microprocessor as BATT_DETECT. A voltage divider is formed with
R255 producing a DC voltage which is read by microprocessor port PE2 (pin 65). This allows the
software to recognize the battery chemistry being used and adjust the battery gauge fo r best
accuracy. The value of R255 is chosen so that the voltage at the BATT_CHARGE node (cathode of
D470) is never low enough to turn on the EXT_MIC_PTT sense transistor (part of Q470).
3.1.2.7 Programming and Flashing Through Microphone Jack
The ring contact on the 2.5 mm microphone jack is used for reading, pr ogramming or re-flashing the
radio using CPS. This contact (J471 pin 6) is routed to port s PD0_RXD (data into uP, pin 97) and
PD1_TXD (data out of uP, pin 98). Transistor Q410 isolates the input and output functions by
allowing PD1 to pull the line low, but does not affect incoming data from being read by port PD0.
To re-flash the radio (overwrite the software in the Flash ROM with new software), the radio must
power up in the boot mode. This is accomplished by using a flash adapter acce ssory, which provides
SCI communication with the programming ring contact (J471 pin 6) and also allows a negative
voltage (negative 9 volts dc via a 1K resistor) to be applied to the tip contact (J471 pin 4). This
voltage is sufficient to turn on the base-emitter junction (pins 1 and 2) of Q472 via L471, D471,
VR472 and R471. Pin 6 of Q472 goes high, turning on Q471 (pins 3 and 4) and pulling the
BOOT_ENA line (ports MODA and MODB of the microprocessor) low. Cycling power generates a
reset which causes the radio to boot in the flash mode.
Chapter 4 136-162 MHz VHF Theory Of Operation
4.1 Introduction
This chapter provides a detailed theory of operation for the radio components. Schematic diagrams
for the circuits described in the following paragraphs are located in Chapter 7 of this manual.
4.2 VHF Receiver
The VHF receiver covers the range of 136-162 MHz and provides switchable IF bandwidth for use
with 12.5 kHz or 20/25 kHz channel spacing systems. The receiver is divided into two major blocks as
shown in Figure 4-1.
•Front End
• Back End
Figure 4-1. VHF Receiver Block Diagram
4.2.1 Receiver Front-End
Incoming RF signals from the antenna are first routed throug h the harmonic filter and ante nna switch,
part of the transmitter circuitry, before being applied to the receiver front end. The receiver front end
consists of a preselector filter, RF amplifier, an interstage filter, and a double-balanced first mixer.
The preselector filter is a fixed-tuned 4-pole design using discrete elements (L1-L4 and C1-C9) in a
series/shunt resonator configuration. It has a 3 dB bandwidth of 43 MHz, an in sertion loss of 2 dB and
image attenuation of 37 dB at 226 MHz, with increasing attenuation at higher frequencies. Diode CR1
protects the RF amplifier by limiting excessive RF levels.
The output of the filter is matched to the base of RF amplifier Q21, which provides 18 dB of gain and
a noise figure of 2 dB. Operating voltage is obtained from the 5R source, which is turned off during
transmit to reduce dissipation in Q21. Current mirror Q22 maintains the operating current of Q21
Demodulator
Crystal
Filter
1st Mixer
RF
Amp
IF
Amp
Preselector
Filter
Interstage
Filter
Recovered Audio
RSSI
RX from
Antenna Switch
Inj Filter
First LO
from Synthesizer
Ceramic
Resonator
Cer Fltr
Switching
4E
6E
6G
BW_SEL
June, 2005 6881096C25-B
4-2 136-162 MHz VHF Theory Of Operation: VHF Receiver
constant at 6.2 mA regardless of device and temperature variations, for optimum dynamic range and
noise figure.
The output of the RF amplifier is applied to the interstage filter, a fixed-tuned 3-pole series-coupled
resonator design having a 3 dB bandwidth of 54 MHz and insertion loss of 1.8 dB. This filter has an
image rejection of 40 dB at 226 MHz, with increasing attenuation at higher frequencies.
The output of the interstage filter is connected to the passive double-balanced mixer consisting of
components T41, T42, and CR41. This mixer has a conversion loss of 7 dB. High-side injection from
the frequency synthesizer is filtered by L40-L41 and C40-C44 to remove second harmonic energy
that may degrade half-IF spurious rejection performance. The injection filter has a 3 dB bandwidth of
52 MHz and an insertion loss of 1.5 dB. The filtered injection signal is applied to T42 at a level of +6
dBm.
The mixer output is applied to a diplexer network (L51-L52, C51, R51) which ma tches the 44 .85 MHz
IF signal to crystal filter FL51, and terminates the mixer into 50Ω at all other frequencies
4.2.2 Receiver Back-End
The receiver back end is a dual conversion design. High IF selectivity is provided by FL51, a 4-pole
fundamental mode 44.85 MHz crystal filter with a minimum 3 dB bandwidth of + 6.7 kHz, a maximum
20 dB bandwidth of ±12.5 kHz, and a maximum insertion loss of 3.5 dB. The output is matched to IF
amplifier stage Q51 by L53 and C93. Q5 1 provides 16 dB of gain and a noise figure of 1.8 dB. The dc
operating current is 1 mA. The output of Q51 is applied to the input of the receiver IFIC U51. Diode
CR51 limits the maximum RF level applied to the IFIC.
The IFIC is a low-voltage monolithic FM IF system incorporating a mixer/oscillator, two limiting IF
amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage
regulator and audio and RSSI op amps. The second LO frequency, 44.395 MHz, is determined by
Y51. The second mixer converts the 44.85 MHz high IF frequency to 455 kHz.
Additional IF selectivity is provided by two ceramic filters, FL52 (between the second mixer and IF
amp) and FL53 or FL54 (between the IF amp and the limiter input). The wider filter FL53 is used for
20/25 kHz channel spacing, and the narrower filter FL54 is used for 12.5 kHz channels. When the
BW_SEL line is high, the two upper diodes in packages D51 and D52 are forward biased, selecting
FL53 for 20/25 kHz channels. When the BW_SEL line is low, the two lower diodes in packages D51
and D52 are forward biased, selecting FL54 for 12.5 kHz channels.
Ceramic resonator Y70 provides phase vs. frequency characteristic required by the quadrature
detector, with 90 degree phase shift occurring at 455 kHz. Buffer Q70 pr ovides a lower driving
impedance from the limiter to the resonator, improving the IF waveform and lowering the distortion of
the recovered audio signal. The recovered audio level at the DEMOD output is 120 mV rms (25 kHz
channel, 3 kHz deviation) or 60 mV rms (12.5 kHz chan n el, 1. 5 kHz devia tio n) . An ad dit ion a l RSSI
output provides a DC voltage level that is proportio nal to RF signal level. This volt age is measured by
an A/D converter contained in the microprocessor (PE4_AN4, U401 pin 63).
FL52 FL53 FL54
Number of Elements: 4 6 6
Insertion Loss: 4 dB 4 dB 4 dB
6 dB Bandwidth: 15 kHz 15 kHz 9 kHz
50 dB Bandwidth: 30 kHz 30 kHz 22 kHz
Stopband Rejection: 27 dB 47 dB 47 dB
6881096C25-B June, 2005
136-162 MHz VHF Theory Of Operation: VHF Transmitter 4-3
4.3 VHF Transmitter
The VHF transmitter covers the range of 136-162 MH z. Depen ding on mo del, the output po wer of the
transmitter is either switchable on a per-channel basis between high power (5 watts) and low power
(1 watt), or is factory preset to 2 watts. The transmitter is divided into four major blocks as shown in
Figure 4-2.
• Power Amplifier
• Harmonic Filter
• Antenna Matching Network
• Power Control
Figure 4-2. VHF Transmitter Block Diagram
4.3.1 Transmit Power Amplifier
The transmitter power amplifier has three stages of amplification. The first stage, Q100, operates in
Class AB from the 5T source. It provides 13 dB of gain and an output of 20 mW. The current drain is
typically 25mA. Components C105-C107 and L103 match the output of Q100 to the 50Ω input of the
module U110.
U110 is a two stage Silicon MOS FET power amplifier module. Drain voltage is obt ained from UNSW
B+ after being routed through current-sense resistor R150 in the power control circuit. The output
power of the module is controlled by varying the DC gate bias on U110 pin 2 (VGG).
4.3.2 Antenna Switch
The antenna switch consists of two pin diodes, D120 and D121. In the rece ive mode, both diodes are
off. Signals applied at the antenna or at jack J140 are routed, via the harmonic filter, through network
C122-C124 and L121, to the receiver input. In the transmit mode, Q170 is on and TXB+ is present,
forward-biasing both diodes into conduction. The diode current is 50 mA, set by R120-R122. The
transmitter RF from U110 is routed through D120, and via the harmonic filter to the antenna jack.
D121 conducts, shunting RF power and preventing it from reaching the receiver. L121 is selected to
appear as a 1/4 wave at VHF, so that the low impedance of D121 appears as a high impedance at the
junction of D120 and the harmonic filter input. This provides a high series impedance and low shunt
impedance divider between the power amplifier output and receiver input.
4.3.3 Harmonic Filter
The harmonic filter consists of components C130- C136 and L130-L132. The harmonic filter is a
seven-pole elliptical low-pass configuration, optimized for low insertion loss, with a 3 dB frequency of
approximately 180 MHz and typically less than 0.8 dB insertion loss in the passband.
Power Control
Harmonic Filter
Antenna
Matching
Network
Power Amplifier Module U110
Q100
TX_INJ
(From VCO)
5T
VDD
VGG
TX_ENA
PWR_SET
USWB+
RX_IN
(To Receiver)
Antenna
Switch
J140 Antenna
Jack
Antenna
June, 2005 6881096C25-B
4-4 136-162 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry
4.3.4 Antenna Matching Network
The harmonic filter presents a 50 Ω impedance to antenna jack J140. A matching network, made up
of C140-C141 and L140, is used to match the antenna impedance to the harmonic filter. This
optimizes the performance of the transmitter and receiver into the impedance presented by the
antenna, significantly improving the antenna's efficiency.
4.3.5 Power Control
The power control circuit is a dc-coupled amplifier whose output is the dc gate bias voltage (VGG)
applied to the two stages of the RF power amplifier U110.
The output power of the transmitter is adjusted by varying the setting of the power-set DAC cont ained
in the ASFICcmp IC (DACG, U451 pin 6). This PWR_SET voltage is applied to U150 pin 3.
Stage U150-2 compares the voltage drop across current sense resistor R150 to the voltage drop
across resistor R151 caused by current flow through Q150, and adjusts its output (pin 7) to maintain
equal voltages at pins 5 and 6. Thus the current flow through Q150, and hence its emitter voltage, is
proportional to the current drawn by stage U110, which is in turn proportional to the transmitter output
power. The emitter voltage of Q150 is applied to U150 pin 2, where it is compared to the power set
voltage PWR_SET at pin 3.
The output of U150 pin 1 is divided by R110 and R111 and applied as a gate voltage to the power
amplifier U110. By varying this gate voltage as needed to keep the voltages at U150 pins 2 and 3
equal, power is maintained at the desired setting. Excessive final current, for example due to antenna
mismatch, causes a lowering of the voltage at U150 pin 6, an increased voltage at pin 2, and a
lowering of the voltage at pin 1 and of the gate voltage VGG. This prevents damage to the final stage
due to excessive current.
4.4 VHF Frequency Generation Circuitry
The frequency generation system, shown in Figure 4-3, is composed of two circuit blocks, the
Fractional-N synthesizer IC U201, the VCO/Buffer IC U251, and associated circuitry. Figure 4-4
shows the peripheral interconnect and support circuitry used in the synthesizer block, and Figure 4-5
details the internal circuitry of the VCOBIC and its interconnections to the surrounding components.
Refer to the schematic to identify reference designators.
The Fractional-N synthesizer is powered by regulated 5 V and 3 V provided by U310 and U330
respectively. 5 V is applied to U201 pins 13 and 30, and 3 V is applied to pins 5, 20, 34 and 36. The
synthesizer in turn generates a super-filtered 4.5 V supply (VSF, from pin 28) to power U251. In
addition to the VCO, the synthesizer also interfaces with the logic and ASFICcmp circuits.
Programming for the synthesizer is accomplished through the microprocessor SPI_DATA_OUT,
SPI_CLK, and SYNTH_CS (chip select) lines (U409 pins 100, 1 and 47 respectively). A logic high
(3 V) from U201 pin 4 indicates to the microprocessor that the synthesizer is locked.
6881096C25-B June, 2005
136-162 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry 4-5
Transmit modulation from the ASFICcmp (U451 pin 40) is applied to U201 pin 10 (MOD_IN). An
electronic attenuator in the ASFICcmp adjusts overall transmitter deviation by varying the audio level
applied to the synthesizer IC. Internally the audio is digitized by the Fractional-N synthesizer and
applied to the loop divider to provide the low-port modulation. The audio is also routed through an
internal attenuator for the purpose of balancing the low port and high port modulation and reducing
the deviation by 6 dB for 12.5 kHz channels, and is available at U201 pin 41 (VCO_MOD). This audio
signal is routed to the VCO's modulator.
Figure 4-3. VHF Frequency Generation Unit Block Diagram
4.4.1 Fractional-N Synthesizer
The Fractional-N synthesizer, shown in Figure 4-4, uses a 16.8 MHz crystal (Y201) to provide the
reference frequency for the system. External components C201-C203, R202 and D201 are also part
of the temperature-compensated oscillator circuit. The dc voltage applied to varactor D201 from U201
pin 25 is determined by a temperature-compensation algorithm within U201, and is specific to each
crystal Y201, based on a unique code assigned to the crystal that identifies its temperature
characteristics. Stability is better than 2.5 ppm over temperatures of -30 to 60 °C. Softwareprogrammable electronic frequency adjustment is achieved by an internal DAC which provides a
frequency adjustment voltage from U201 pin 25 to varact or D201.
The synthesizer IC U201 further divides the 16.8 MHz signal to 2.1 MHz, 2.225 MHz, or 2.4 MHz for
use as reference frequencies. It also provides a buffered 16.8 MHz signal at U201 pin 19 for use by
the ASFICcmp.
To achieve fast locking of the synthesizer, an internal adapt charge pump provides higher current at
U201 pin 45 to quickly force the synthesizer within lock range. The required frequency is then locked
by the normal mode charge pump at pin 43. A lo op filter (C243 -C245 and R243 -R245) removes noise
and spurs from the steering voltage applied to the VCO varactors, with additional filtering located in
the VCO circuit.
Both the normal and adapt charge pumps get their supply from the capa citive volt age multiplie r made
up of C221-C224 and D220-D221. Two 3 V square waves from U201 pins 14-15 provide the drive
signals for the voltage multiplier, which generates 12.1 V at U201 pin 47. This voltage is filtered by
C225-C228.
Synthesizer
U201
VCOBIC
U251
Voltage
Multiplier
Loop
Filter
To Mixer
To PA Driver
VCP
Vmult1
Vmult2
Aux3
MOD Out
Modulating
Signal
Rx VCO
Circuit
Tx VCO
Circuit
TRB
16.8 MHz
Ref. Osc.
Rx Out
Tx Out
Buffer
Q280
June, 2005 6881096C25-B
4-6 136-162 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry
One of the auxiliary outputs of the synthesizer IC (AUX3, U201 pin 2) provides the TRB signal which
determines the operating mode of the VCO, either receive or transmit.
Figure 4-4. VHF Synthesizer Block Diagram
4.4.2 Voltage Controlled Oscillator (VCO)
The VCOBIC (U251), shown in Figure 4-5, in conjunction with the Fractional-N synthesizer (U201)
generates RF in both the receive and the transmit modes of operation. The TRB line (U251 pin 19)
determines which oscillator and buffer are enabled. A sample of the RF signal from the enabled
oscillator is routed from U251 pin 12 through a low pass filter, to the prescaler input of the synthesizer
IC (U201 pin 32). After frequency comparison in the synthesizer, a resultant DC control voltage is
used to steer the VCO frequency. When the PLL is locked on frequency, this voltage can vary
between 3 V and 9 V. L251 and C251 further attenuate noise and spurs on the steering line voltage.
In the receive mode, the TRB line (U251 pin 19) is low. This activates the receive VCO and the
receive buffer of U251, which o perate within the ra nge of 180 .85 to 20 6.85 MHz. The VCO frequen cy
is determined by tank inductor L254, C253 -C257, and varactor D251. The buf fered RF signal at U251
pin 8 is further amplified by Q280 and applied as RX_INJ to the low-p ass injection filter in the receiver
front end circuit.
In the transmit mode, U251-19 is driven high by U201 pin 2, enabling the transmit VCO and buffer.
The 136-162 MHz RF signal from U251 pin 10 is applied as TX_INJ to the input of the transmitter
circuit via matching network C290-C291 and L291. TX VCO frequency is deter mined by L264, C263-
DATA
CLK
CEX
MODIN
V
CC
, 5V
XTAL1
WARP
PREIN
VCP
Reference
Oscillator
Voltage
Multiplier
Voltage
Controlled
Oscillator
2-Pole
Loop Filter
DATA (U401 Pin 100)
CLOCK (U401 Pin 1)
SYNTH_CS (U401 Pin 47)
MOD IN (U451 Pin 40)
+5V (U310 Pin 5)
7
8
9
10
13,30
23
25
32
47
VMULT2
VMULT1
BIAS1
SFOUT
AUX3
IADAPT
IOUT
GND
FREFOUT
LOCK
4
19
6,22,23,24
43
45
2
28
14
15
40
Filtered 5V
Steering
Line
LOCK (U401 Pin 56)
Prescaler In
LO RF
Injection
TX RF
Injection
(First Stage of PA)
FREF (U451 Pin 34)
39
BIAS2
41
+3V (U330 Pin 5)
V
DD
, 3V
MODOUT
U201
Low Voltage
Fractional-N
Synthesizer
5,20,34,36
TRB
VCO
Mod
6881096C25-B June, 2005
136-162 MHz VHF Theory Of Operation: Keypad 4-7
C267, and varactor D261. High-port audio modulation from the synthesizer IC is applied as
VCO_MOD to varactor D262 which modulates the transmit VCO.
Figure 4-5. VHF VCO Block Diagram
4.5 Keypad
The keypad block diagram is shown in Figure 4-6. Pressing a key creates two distinct voltages
KEYPAD_ROW and KEYPAD_COL. These voltages are sent directly to the radio’s microprocessor
on the main board. The microprocessor then interprets the voltage for KEYPAD_ROW and
KEYPAD_COL for each key press.
Figure 4-6. Keypad Block Diagram
Presc
RX
TX
Matching
Network
Pin 8
Pin 14
Pin 10
3V (U330 Pin 5)
VCC Buffers
U201 Pin 32
AUX3 (U201 Pin 2)
Prescaler Out
Pin 12
Pin 19
Pin 20
TX/RX/BS
Switching Network
U251
VCOBIC
Rx Active
Bias
Tx Active
Bias
Pin 2
Rx-I adjust
Pin 1
Tx-I adjust
Pins 9,11,17
Pin 18
Vsens
Circuit
Pin 15
Pin 16
TX VCO
Circuit
TX
Tank
RX VCO
Circuit
RX
Tank
Pin 7
Vcc-Superfilter
Collector/RF in
Pin 4
Pin 5
Pin 6
RX
TX
V_SF (U201 Pin 28)
NC
NC
Vcc-Logic
3V
(U330 Pin 5)
Steer Line
Voltage
(V_STEER)
Pin 13
Pin 3
TRB_IN
Buffer
Q280
RX INJ
V_SF
(U201 Pin 28)
TX INJ
Keypad
Button
MCP
Keypad Row
Keypad Row
Keypad Row
Keypad Column
Keypad Column
Keypad Column
28 Pin Connector
(keypad Board)
28 Pin Connector
(Main Board)
June, 2005 6881096C25-B
4-8 136-162 MHz VHF Theory Of Operation: Keypad
Notes:
Chapter 5 146-174 MHz VHF Theory Of Operation
5.1 Introduction
This chapter provides a detailed theory of operation for the radio components. Schematic diagrams
for the circuits described in the following paragraphs are located in Chapter 7 of this manual.
5.2 VHF Receiver
The VHF receiver covers the range of 146-174 MHz and provides switchable IF bandwidth for use
with 12.5 kHz or 20/25 kHz channel spacing systems. The receiver is divided into two major blocks as
shown in Figure 5-1.
•Front End
• Back End
Figure 5-1. VHF Receiver Block Diagram
5.2.1 Receiver Front-End
Incoming RF signals from the antenna are first routed throug h the harmonic filter and ante nna switch,
part of the transmitter circuitry, before being applied to the receiver front end. The receiver front end
consists of a preselector filter, RF amplifier, an interstage filter, and a double-balanced first mixer.
The preselector filter is a fixed-tuned 4-pole design using discrete elements (L1-L4 and C1-C9) in a
series/shunt resonator configuration. It has a 3 dB bandwidth of 44 MHz, an in sertion loss of 2 dB and
image attenuation of 40 dB at 235 MHz, with increasing attenuation at higher frequencies. Diode CR1
protects the RF amplifier by limiting excessive RF levels.
The output of the filter is matched to the base of RF amplifier Q21, which provides 18 dB of gain and
a noise figure of 2 dB. Operating voltage is obtained from the 5R source, which is turned off during
transmit to reduce dissipation in Q21. Current mirror Q22 maintains the operating current of Q21
Demodulator
Crystal
Filter
1st Mixer
RF
Amp
IF
Amp
Preselector
Filter
Interstage
Filter
Recovered Audio
RSSI
RX from
Antenna Switch
Inj Filter
First LO
from Synthesizer
Ceramic
Resonator
Cer Fltr
Switching
4E
6E
6G
BW_SEL
June, 2005 6881096C25-B
5-2 146-174 MHz VHF Theory Of Operation: VHF Receiver
constant at 6.2 mA regardless of device and temperature variations, for optimum dynamic range and
noise figure.
The output of the RF amplifier is applied to the interstage filter, a fixed-tuned 3-pole series-coupled
resonator design having a 3 dB bandwidth of 58 MHz and insertion loss of 1.8 dB. This filter has an
image rejection of 42 dB at 235 MHz, with increasing attenuation at higher frequencies.
The output of the interstage filter is connected to the passive double-balanced mixer consisting of
components T41, T42, and CR41. This mixer has a conversion loss of 7 dB. High-side injection from
the frequency synthesizer is filtered by L40-L41 and C40-C44 to remove second harmonic energy
that may degrade half-IF spurious rejection performance. The injection filter has a 3 dB bandwidth of
52 MHz and an insertion loss of 1.5 dB. The filtered injection signal is applied to T42 at a level of +6
dBm.
The mixer output is applied to a diplexer network (L51-L52, C51, R51) which ma tches the 44 .85 MHz
IF signal to crystal filter FL51, and terminates the mixer into 50Ω at all other frequencies
5.2.2 Receiver Back-End
The receiver back end is a dual conversion design. High IF selectivity is provided by FL51, a 4-pole
fundamental mode 44.85 MHz crystal filter with a minimum 3 dB bandwidth of + 6.7 kHz, a maximum
20 dB bandwidth of ±12.5 kHz, and a maximum insertion loss of 3.5 dB. The output is matched to IF
amplifier stage Q51 by L53 and C93. Q5 1 provides 16 dB of gain and a noise figure of 1.8 dB. The dc
operating current is 1 mA. The output of Q51 is applied to the input of the receiver IFIC U51. Diode
CR51 limits the maximum RF level applied to the IFIC.
The IFIC is a low-voltage monolithic FM IF system incorporating a mixer/oscillator, two limiting IF
amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage
regulator and audio and RSSI op amps. The second LO frequency, 44.395 MHz, is determined by
Y51. The second mixer converts the 44.85 MHz high IF frequency to 455 kHz.
Additional IF selectivity is provided by two ceramic filters, FL52 (between the second mixer and IF
amp) and FL53 or FL54 (between the IF amp and the limiter input). The wider filter FL53 is used for
20/25 kHz channel spacing, and the narrower filter FL54 is used for 12.5 kHz channels. When the
BW_SEL line is high, the two upper diodes in packages D51 and D52 are forward biased, selecting
FL53 for 20/25 kHz channels. When the BW_SEL line is low, the two lower diodes in packages D51
and D52 are forward biased, selecting FL54 for 12.5 kHz channels.
Ceramic resonator Y70 provides phase vs. frequency characteristic required by the quadrature
detector, with 90 degree phase shift occurring at 455 kHz. Buffer Q70 pr ovides a lower driving
impedance from the limiter to the resonator, improving the IF waveform and lowering the distortion of
the recovered audio signal. The recovered audio level at the DEMOD output is 120 mV rms (25 kHz
channel, 3 kHz deviation) or 60 mV rms (12.5 kHz chan n el, 1. 5 kHz devia tio n) . An ad dit ion a l RSSI
output provides a DC voltage level that is proportio nal to RF signal level. This volt age is measured by
an A/D converter contained in the microprocessor (PE4_AN4, U401 pin 63).
FL52 FL53 FL54
Number of Elements: 4 6 6
Insertion Loss: 4 dB 4 dB 4 dB
6 dB Bandwidth: 15 kHz 15 kHz 9 kHz
50 dB Bandwidth: 30 kHz 30 kHz 22 kHz
Stopband Rejection: 27 dB 47 dB 47 dB
6881096C25-B June, 2005
146-174 MHz VHF Theory Of Operation: VHF Transmitter 5-3
5.3 VHF Transmitter
The VHF transmitter covers the range of 146-174 MH z. Depen ding on mo del, the output po wer of the
transmitter is either switchable on a per-channel basis between high power (5 watts) and low power
(1 watt), or is factory preset to 2 watts. The transmitter is divided into four major blocks as shown in
Figure 5-2.
• Power Amplifier
• Harmonic Filter
• Antenna Matching Network
• Power Control
Figure 5-2. VHF Transmitter Block Diagram
5.3.1 Transmit Power Amplifier
The transmitter power amplifier has three stages of amplification. The first stage, Q100, operates in
Class AB from the 5T source. It provides 13 dB of gain and an output of 20 mW. The current drain is
typically 25mA. Components C105-C107 and L103 match the output of Q100 to the 50Ω input of the
module U110.
U110 is a two stage Silicon MOS FET power amplifier module. Drain voltage is obt ained from UNSW
B+ after being routed through current-sense resistor R150 in the power control circuit. The output
power of the module is controlled by varying the DC gate bias on U110 pin 2 (VGG).
5.3.2 Antenna Switch
The antenna switch consists of two pin diodes, D120 and D121. In the rece ive mode, both diodes are
off. Signals applied at the antenna or at jack J140 are routed, via the harmonic filter, through network
C122-C124 and L121, to the receiver input. In the transmit mode, Q170 is on and TXB+ is present,
forward-biasing both diodes into conduction. The diode current is 50 mA, set by R120-R122. The
transmitter RF from U110 is routed through D120, and via the harmonic filter to the antenna jack.
D121 conducts, shunting RF power and preventing it from reaching the receiver. L121 is selected to
appear as a 1/4 wave at VHF, so that the low impedance of D121 appears as a high impedance at the
junction of D120 and the harmonic filter input. This provides a high series impedance and low shunt
impedance divider between the power amplifier output and receiver input.
5.3.3 Harmonic Filter
The harmonic filter consists of components C130- C136 and L130-L132. The harmonic filter is a
seven-pole elliptical low-pass configuration, optimized for low insertion loss, with a 3 dB frequency of
approximately 210 MHz and typically less than 0.8 dB insertion loss in the passband.
Power Control
Harmonic Filter
Antenna
Matching
Network
Power Amplifier Module U110
Q100
TX_INJ
(From VCO)
5T
VDD
VGG
TX_ENA
PWR_SET
USWB+
RX_IN
(To Receiver)
Antenna
Switch
J140 Antenna
Jack
Antenna
June, 2005 6881096C25-B
5-4 146-174 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry
5.3.4 Antenna Matching Network
The harmonic filter presents a 50 Ω impedance to antenna jack J140. A matching network, made up
of C140-C141 and L140, is used to match the antenna impedance to the harmonic filter. This
optimizes the performance of the transmitter and receiver into the impedance presented by the
antenna, significantly improving the antenna's efficiency.
5.3.5 Power Control
The power control circuit is a dc-coupled amplifier whose output is the dc gate bias voltage (VGG)
applied to the two stages of the RF power amplifier U110.
The output power of the transmitter is adjusted by varying the setting of the power-set DAC cont ained
in the ASFICcmp IC (DACG, U451 pin 6). This PWR_SET voltage is applied to U150 pin 3.
Stage U150-2 compares the voltage drop across current sense resistor R150 to the voltage drop
across resistor R151 caused by current flow through Q150, and adjusts its output (pin 7) to maintain
equal voltages at pins 5 and 6. Thus the current flow through Q150, and hence its emitter voltage, is
proportional to the current drawn by stage U110, which is in turn proportional to the transmitter output
power. The emitter voltage of Q150 is applied to U150 pin 2, where it is compared to the power set
voltage PWR_SET at pin 3.
The output of U150 pin 1 is divided by R110 and R111 and applied as a gate voltage to the power
amplifier U110. By varying this gate voltage as needed to keep the voltages at U150 pins 2 and 3
equal, power is maintained at the desired setting. Excessive final current, for example due to antenna
mismatch, causes a lowering of the voltage at U150 pin 6, an increased voltage at pin 2, and a
lowering of the voltage at pin 1 and of the gate voltage VGG. This prevents damage to the final stage
due to excessive current.
5.4 VHF Frequency Generation Circuitry
The frequency generation system, shown in Figure 5-3, is composed of two circuit blocks, the
Fractional-N synthesizer IC U201, the VCO/Buffer IC U251, and associated circuitry. Figure 5-4
shows the peripheral interconnect and support circuitry used in the synthesizer block, and Figure 5-5
details the internal circuitry of the VCOBIC and its interconnections to the surrounding components.
Refer to the schematic to identify reference designators.
The Fractional-N synthesizer is powered by regulated 5 V and 3 V provided by U310 and U330
respectively. 5 V is applied to U201 pins 13 and 30, and 3 V is applied to pins 5, 20, 34 and 36. The
synthesizer in turn generates a super-filtered 4.5 V supply (VSF, from pin 28) to power U251. In
addition to the VCO, the synthesizer also interfaces with the logic and ASFICcmp circuits.
Programming for the synthesizer is accomplished through the microprocessor SPI_DATA_OUT,
SPI_CLK, and SYNTH_CS (chip select) lines (U409 pins 100, 1 and 47 respectively). A logic high
(3 V) from U201 pin 4 indicates to the microprocessor that the synthesizer is locked.
6881096C25-B June, 2005
146-174 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry 5-5
Transmit modulation from the ASFICcmp (U451 pin 40) is applied to U201 pin 10 (MOD_IN). An
electronic attenuator in the ASFICcmp adjusts overall transmitter deviation by varying the audio level
applied to the synthesizer IC. Internally the audio is digitized by the Fractional-N synthesizer and
applied to the loop divider to provide the low-port modulation. The audio is also routed through an
internal attenuator for the purpose of balancing the low port and high port modulation and reducing
the deviation by 6 dB for 12.5 kHz channels, and is available at U201 pin 41 (VCO_MOD). This audio
signal is routed to the VCO's modulator.
Figure 5-3. VHF Frequency Generation Unit Block Diagram
5.4.1 Fractional-N Synthesizer
The Fractional-N synthesizer, shown in Figure 5-4, uses a 16.8 MHz crystal (Y201) to provide the
reference frequency for the system. External components C201-C203, R202 and D201 are also part
of the temperature-compensated oscillator circuit. The dc voltage applied to varactor D201 from U201
pin 25 is determined by a temperature-compensation algorithm within U201, and is specific to each
crystal Y201, based on a unique code assigned to the crystal that identifies its temperature
characteristics. Stability is better than 2.5 ppm over temperatures of -30 to 60 °C. Softwareprogrammable electronic frequency adjustment is achieved by an internal DAC which provides a
frequency adjustment voltage from U201 pin 25 to varact or D201.
The synthesizer IC U201 further divides the 16.8 MHz signal to 2.1 MHz, 2.225 MHz, or 2.4 MHz for
use as reference frequencies. It also provides a buffered 16.8 MHz signal at U201 pin 19 for use by
the ASFICcmp.
To achieve fast locking of the synthesizer, an internal adapt charge pump provides higher current at
U201 pin 45 to quickly force the synthesizer within lock range. The required frequency is then locked
by the normal mode charge pump at pin 43. A lo op filter (C243 -C245 and R243 -R245) removes noise
and spurs from the steering voltage applied to the VCO varactors, with additional filtering located in
the VCO circuit.
Both the normal and adapt charge pumps get their supply from the capa citive volt age multiplie r made
up of C221-C224 and D220-D221. Two 3 V square waves from U201 pins 14-15 provide the drive
signals for the voltage multiplier, which generates 12.1 V at U201 pin 47. This voltage is filtered by
C225-C228.
Synthesizer
U201
VCOBIC
U251
Voltage
Multiplier
Loop
Filter
To Mixer
To PA Driver
VCP
Vmult1
Vmult2
Aux3
MOD Out
Modulating
Signal
Rx VCO
Circuit
Tx VCO
Circuit
TRB
16.8 MHz
Ref. Osc.
Rx Out
Tx Out
Buffer
Q280
June, 2005 6881096C25-B
5-6 146-174 MHz VHF Theory Of Operation: VHF Frequency Generation Circuitry
One of the auxiliary outputs of the synthesizer IC (AUX3, U201 pin 2) provides the TRB signal which
determines the operating mode of the VCO, either receive or transmit.
Figure 5-4. VHF Synthesizer Block Diagram
5.4.2 Voltage Controlled Oscillator (VCO)
The VCOBIC (U251), shown in Figure 5-5, in conjunction with the Fractional-N synthesizer (U201)
generates RF in both the receive and the transmit modes of operation. The TRB line (U251 pin 19)
determines which oscillator and buffer are enabled. A sample of the RF signal from the enabled
oscillator is routed from U251 pin 12 through a low pass filter, to the prescaler input of the synthesizer
IC (U201 pin 32). After frequency comparison in the synthesizer, a resultant DC control voltage is
used to steer the VCO frequency. When the PLL is locked on frequency, this voltage can vary
between 3 V and 9 V. L251 and C251 further attenuate noise and spurs on the steering line voltage.
In the receive mode, the TRB line (U251 pin 19) is low. This activates the receive VCO and the
receive buffer of U251, which o perate within the ra nge of 190 .85 to 21 8.85 MHz. The VCO frequen cy
is determined by tank inductor L254, C253 -C257, and varactor D251. The buf fered RF signal at U251
pin 8 is further amplified by Q280 and applied as RX_INJ to the low-p ass injection filter in the receiver
front end circuit.
In the transmit mode, U251-19 is driven high by U201 pin 2, enabling the transmit VCO and buffer.
The 146-174 MHz RF signal from U251 pin 10 is applied as TX_INJ to the input of the transmitter
circuit via matching network C290-C291 and L291. TX VCO frequency is deter mined by L264, C263-
DATA
CLK
CEX
MODIN
V
CC
, 5V
XTAL1
WARP
PREIN
VCP
Reference
Oscillator
Voltage
Multiplier
Voltage
Controlled
Oscillator
2-Pole
Loop Filter
DATA (U401 Pin 100)
CLOCK (U401 Pin 1)
SYNTH_CS (U401 Pin 47)
MOD IN (U451 Pin 40)
+5V (U310 Pin 5)
7
8
9
10
13,30
23
25
32
47
VMULT2
VMULT1
BIAS1
SFOUT
AUX3
IADAPT
IOUT
GND
FREFOUT
LOCK
4
19
6,22,23,24
43
45
2
28
14
15
40
Filtered 5V
Steering
Line
LOCK (U401 Pin 56)
Prescaler In
LO RF
Injection
TX RF
Injection
(First Stage of PA)
FREF (U451 Pin 34)
39
BIAS2
41
+3V (U330 Pin 5)
V
DD
, 3V
MODOUT
U201
Low Voltage
Fractional-N
Synthesizer
5,20,34,36
TRB
VCO
Mod
6881096C25-B June, 2005
146-174 MHz VHF Theory Of Operation: Keypad 5-7
C267, and varactor D261. High-port audio modulation from the synthesizer IC is applied as
VCO_MOD to varactor D262 which modulates the transmit VCO.
Figure 5-5. VHF VCO Block Diagram
5.5 Keypad
The keypad block diagram is shown in Figure 5-6. Pressing a key creates two distinct voltages
KEYPAD_ROW and KEYPAD_COL. These voltages are sent directly to the radio’s microprocessor
on the main board. The microprocessor then interprets the voltage for KEYPAD_ROW and
KEYPAD_COL for each key press.
Figure 5-6. Keypad Block Diagram
Presc
RX
TX
Matching
Network
Pin 8
Pin 14
Pin 10
3V (U330 Pin 5)
VCC Buffers
U201 Pin 32
AUX3 (U201 Pin 2)
Prescaler Out
Pin 12
Pin 19
Pin 20
TX/RX/BS
Switching Network
U251
VCOBIC
Rx Active
Bias
Tx Active
Bias
Pin 2
Rx-I adjust
Pin 1
Tx-I adjust
Pins 9,11,17
Pin 18
Vsens
Circuit
Pin 15
Pin 16
TX VCO
Circuit
TX
Tank
RX VCO
Circuit
RX
Tank
Pin 7
Vcc-Superfilter
Collector/RF in
Pin 4
Pin 5
Pin 6
RX
TX
V_SF (U201 Pin 28)
NC
NC
Vcc-Logic
3V
(U330 Pin 5)
Steer Line
Voltage
(V_STEER)
Pin 13
Pin 3
TRB_IN
Buffer
Q280
RX INJ
V_SF
(U201 Pin 28)
TX INJ
Keypad
Button
MCP
Keypad Row
Keypad Row
Keypad Row
Keypad Column
Keypad Column
Keypad Column
28 Pin Connector
(keypad Board)
28 Pin Connector
(Main Board)
June, 2005 6881096C25-B
5-8 146-174 MHz VHF Theory Of Operation: Keypad
Notes:
Chapter 6 VHF Troubleshooting Tables
6.1 Troubleshooting Table for Receiver
Table 6-1. Troubleshooting Table for Receiver
Symptom Possible Causes Procedure Corrective Action
Radio Dead (no
turn-on beep, no
LED indication)
1. Battery dead or defective.
Substitute known good battery or
battery eliminator.
Charge or replace battery.
2. Defective battery contacts.
Inspect battery contacts for corrosion
or bent terminals.
Clean/repair/replace J301.
3. Blown fuse Check voltage on each side of fuse.
If blown, 0 VDC after fuse.
Check for short on output,
check D301, VR301, troubleshoot/repair as needed, replace
fuse.
4. DC switching fault Verify battery voltage present at
S444 pin 5 when radio is on.
Verify Q494-1 is at least 1 V dc,
Q494-6 is ~0.1 V dc, Q493-3 is at
Vbatt.
Check/replace on-off-volume
control S444.
Troubleshoot/replace Q493/4.
5. Microprocessor not
starting up.
Verify clock input to U401-90
(EXTAL) is 7.3975 MHz using high
impedance probe. If clock is 3.8
MHz, check for shorts on U401 pins.
Connect RIB to verify communication via CPS.
Verify U401-94 (RESET) is high.
Verify 16.8 MHz signal at U451-
34. If OK, troubleshoot/replace
U451. If not present, troubleshoot U201 Synthesizer. Reprogram/reflash as needed.
If RESET is Low, troubleshoot
regulator U320. Check for
shorts at U401 pins. Replace
U401 (depot only). Reprogram/
reflash as needed.
6. Regulator fault Verify U310-5 is 5 V dc, U320-5 is
3.3 V dc, U330-5 is 3 V dc.
Check for shorts on outputs,
troubleshoot/repair as needed,
replace faulty regulator.
June, 2005 6881096C25-B
6-2 VHF Troubleshooting Tables: Troubleshooting Table for Receiver
No Audio
1. Synthesizer out of lock Verify U201-4 is at 3 V dc. Troubleshoot synthesizer/VCO
circuits.
2. Defective IFIC Verify audio is present at U51-8. Check Q70, Y70, U51.
3. RX audio buffer fault Verify audio is present at U451-2. Check U510 and associated
parts.
4. ASFIC fault Verify audio is present at U451-41.
Verify U451-14 is high.
Check squelch setting, PL/DPL
programming. Troubleshoot/
replace U451.
5. Audio PA fault Verify U490-1 is <0.2 V dc.
Verify audio is present at U490-5
and 8.
Check Q490.
Check/replace U490.
6. Defective speaker Verify audio is present at speaker
terminals.
If not, check continuity of J471-2
and 3. Check J491. If yes,
replace speaker.
No Receive
(squelch noise
present)
1. No first injection Check that RF level at T42-6 is
approx +6 dBm.
Check that RF level at U251-8 is at
least -8 dBm.
Check injection filter C40-44,
L40-41.
If yes, check Q280 and associated parts. If no, check U251
and components on pins 5 and
6.
2. No 5R source. Verify U401-49 is high in RX.
Verify Q311 gate is 0 V dc in RX
Verify Q311 drain is 5 V dc in RX.
Check/replace U401
Check/replace Q313.
Check for shorts, check/replace
Q311.
3. Harmonic filter or
antenna switch fault
Apply on-channel 100 mV RF signal
at antenna port. Verify RF level at jct.
C1/C2 per schematic.
Check TX harmonic filter, D120-
121. Should be 0 V dc on D120-
121.
4. Back end fault Apply on-channel 100 mV RF signal
at antenna port. Measure RF levels
from FL51 through U51.
Check components prior to lossof-signal point.
5. No second injection Measure RF level at U51-3, verify
approx. 280 mV rms.
If dc voltages at U51-3 and 4
are OK, check Y51 and associated parts. If not replace U51.
Table 6-1. Troubleshooting Table for Receiver (Continued)
Symptom Possible Causes Procedure Corrective Action
6881096C25-B June, 2005
VHF Troubleshooting Tables: Troubleshooting Table for Synthesizer 6-3
6.2 Troubleshooting Table for Synthesizer
Table 6-2. Troubleshooting Table for Synthesizer
Symptom Possible Causes Procedure Corrective Action
Synthesizer Out of
Lock (RX mode
only)
1. VCO fault V erify oscillator is working, check RF
level at U251-10 per schematic.
Check dc voltages at U251 pin 2
through 6 and 10 per
Table 6-4.
Verify steering line voltage is
between ~3 V and 10 V.
Check VCO tank components
connected to U251-5 and 6.
Check for shorts/opens, replace
U251.
Check D251 and associated
components.
2. Synthesizer fault Verify TRB line (from U201-2 to
U251-19) is low in RX mode
Check for shorts, check U201
voltages per
Ta b le 6- 4, replace
U201 if incorrect.
3. Programming fault Verify RX channel programming is
correct.
Re-program if necessary .
Synthesizer Out of
Lock (TX mode
only)
1. VCO fault Verify oscillator is working, check RF
level at U251-10 per schematic.
Check dc voltages at U251 pins
1,3,4,10,15,16 per Ta b l e 6 - 4 .
Verify steering line voltage is
between ~3 V and 10 V.
Check VCO tank components
connected to U251-15 and 16.
Check for shorts/opens, replace
U251.
Check D261 and associated
components.
2. Synthesizer fault Verify TRB line (U201-2 to U251-19)
is high (3 V) in TX mode
Check for shorts, check U201
voltages per
Ta b le 6- 4, replace
U201 if incorrect.
3. Programming fault Verify TX channel programming is
correct.
Re-program if necessary .
Synthesizer Out of
Lock (RX and TX
modes)
1. VCO fault Check that RF level at U251-12 is at
least 150 mV (VHF) or -12 to -20
dBm (UHF)
If low/missing, check L276,
C276-7, R276.
2. Synthesizer fault Check that RF level at U201-32 is at
least 150 mV (VHF) or -12 to -20
dBm (UHF).
Verify steering line voltage is
between ~3 V and 10 V.
If correct, check/replace U201.
If incorrect, check R248 and
C241.
Check loop filter components
R243-5 and C243-5.
3. DC voltage fault Verify 4.5 V dc at U201-28.
Verify 12.1 V dc at U201-47
Check C231-233, etc., for
shorts. If OK check/replace
U201.
Check for 3 V 1.05 MHz sq
waves at U201-14 and 15.
Check C218-228, D220-221.
4. Programming fault Verify channel programming is correct.
Re-program if necessary .
June, 2005 6881096C25-B
6-4 VHF Troubleshooting Tables: Troubleshooting Table for Transmitter
6.3 Troubleshooting Table for Transmitter
Table 6-3. Troubleshooting Table for Transmitter
Symptom Possible Causes Procedure Corrective Action
No Transmit (no TX
LED indication)
1. PTT switch defective. Verify U401-71 goes low when PTT
is pressed.
Replace PTT switch S441.
2. EXT MIC PTT fault Verify U401-72 goes low when J4714 is grounded.
Check/replace Q470, L471 etc.
No Transmit (TX
LED indication OK)
1. Synthesizer out of lock Refer to Table 6-2. Refer to Table 6-2.
2. No TX_ENABLE Verify U401-50 is high when pin 71
or 72 is low.
Check/replace U401.
3. TX DC switch fault Verify Q171-C is 0 V in TX.
Verify Q170-C is at Vbatt in TX.
Replace Q171.
Check for shorts, replace Q170.
4. Power control fault Check Q150 and U150 dc voltages
per schematic and
Table 6-4.
Repair/replace defective components
5. No TX injection Check that RF level at jct. R100/
R101 per schematic.
Check U251, L291-292, C290-
291.
6. No 5T source Verify Q312 gate is 0 V dc in TX
Verify Q312 drain is 5 V dc in TX.
Check/replace Q313.
Check for shorts, check/replace
Q312.
7. TX gain stage failure Check RF levels at Q100 and U110
per schematic.
Troubleshoot Q100/U110 and
associated circuitry.
8. Antenna switch failure V erify dc voltage at jct. R122/L120 is
approx 1.5 V .
Check/replace D120-121, L120121, R120-122, etc.
6881096C25-B June, 2005
VHF Troubleshooting Tables: Troubleshooting Table for Transmitter 6-5
Low Power
1. Low TX injection Check that RF level at jct. R100/
R101 per schematic.
Check U251, L291-292, C290-
291.
2. Low gain in TX stage Verify dc voltage at Q100-E is ~1.3 V
(VHF) or ~0.5 V (UHF).
Verify that RF level at U110-1 is
approx. 1 V (VHF) or 1.6 V (UHF).
Verify 5T voltage is correct.
Troubleshoot Q100 circuitry.
Troubleshoot Q100 circuitry.
Check/replace Q100.
3. Incorrect control volt-
age
Verify that the dc voltage at
PWR_SET (R162) is approx 1.8 V
dc (at 1 watt) to 2.6 V dc (at 4-5
watts).
Verify that the dc voltage at U110-2
is approx 2-3 V dc (at 1 watt) to 3-4
V dc (at 4-5 watts). (See schematic.)
Check programming. Troubleshoot controller circuitry. Check/
replace U451.
Troubleshoot U150, Q150 and
associated circuitry.
4. Antenna switch defect Verify dc voltage at jct. R122/L120
(VHF) or R121/L120 (UHF) is approx
1.7 V. Note: Do not attempt to mea-
sure RF or DC voltages at the
diodes. Damage to test equipment
may occur.
Check/replace D120-121, L120121, R120-122, etc.
5. Harmonic filter defect Visually inspect components C130137, L130-132. Check dc continuity
of L130-132 in RX mode only.
Repair/replace if necessary.
Poor TX range,
conducted power
OK
1. RF test jack defective Verify continuity of J140 pins 3 and 4
in RX mode only.
Replace J140.
2. Antenna matching net-
work fault
Visually inspect components C140141, L140 or L141. Check dc continuity of L140 or L141in RX mode
only.
Repair/replace if necessary.
3. Defective or wrong
antenna
Verify correct antenna is installed.
Try another antenna.
Replace antenna.
No internal mic
audio (EXT MIC
audio OK)
1. Mic bias fault Verify U451-35 is low when side PTT
is pressed.
Verify Q470-6 is high when side PTT
button is pressed.
Check/replace U451.
Check/replace R474, R476, and
Q470.
2. Defective mic Verify approx 1.8 V dc across cartridge when side PTT button is
pressed. Verify audio present (~10
mV rms) when speaking into mic.
Check mic connector and R478.
Replace mic cartridge.
3. Defective mic jack Verify continuity between J471 pins
4 and 5.
Replace J471.
Table 6-3. Troubleshooting Table for Transmitter (Continued)
Symptom Possible Causes Procedure Corrective Action
June, 2005 6881096C25-B
6-6 VHF Troubleshooting Tables: Troubleshooting Table for Transmitter
No EXT MIC audio 1. Mic bias fault Verify approx 1.8 V dc across EXT
MIC cartridge in TX mode. Verify
audio present (~10 mV rms) when
speaking into mic.
Check Q470. R475, R477,
L471. Check VR473, VR475,
D470 for shorts.
2. Audio path fault Verify mic audio present (~10 mV
rms) at U451-46.
Verify amplified mic audio present
(~200 mV rms) at U451-40.
Check L471, C470.
Check/replace U451.
3. Defective audio acces-
sory
Try another accessory. Replace defective accessory.
Table 6-3. Troubleshooting Table for Transmitter (Continued)
Symptom Possible Causes Procedure Corrective Action
6881096C25-B June, 2005
VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-7
6.4 Troubleshooting Table for Board and IC Signals
Table 6-4. Troubleshooting Table for Board and IC Signals
IC Designator Pin Pin Function DC Voltage Comments (Condition)
U51
IFIC
1 RF input 44.85 MHz 1.20
2 RF input decoupling 1.20
3 2nd LO osc output 4.02
4 2nd LO osc input 4.60
5 RSSI output 0.74 (no received signal)
6 Vcc 4.70
7 Audio feedback 0.89
8 Audio output 1.44 DEMOD to stage U510
9 RSSI feedback 0.74 (no received signal)
10 Quad detector input 2.22
11 Limiter output 1.25
12 Limiter decoupling 2 1.30
13 Limiter decoupling 1 1.30
14 Limiter input 1.28
15 Ground GND
16 IF amp output 1.22
17 IF amp decoupling 2 1.26
18 IF amp input 1.26
19 IF amp decoupling 1 1.26
20 2nd mixer output 3.09
U52
BW Select Switch
1 Inverter 1 input 0 (25 kHz mode)
2 Inverter 2 output 0 (25 kHz mode)
3 Inverter 3 input (NU) GND
4 Ground GND
5 Inverter 3 output (NU) 4.96
6 Inverter 2 input 3.00 (25 kHz mode)
7 Inverter 1 output 4.95 (25 kHz mode)
8 Vcc 4.96
June, 2005 6881096C25-B
6-8 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals
U110
RF Power Amp
1 RF input 0 (TX mode)
2 Vgg (gate bias) 2.65 (typ) ( TX mode) (4.25 V typ at VHF)
3 Vdd 6.59 (TX mode)
4 RF output -- Do not measure
5 Ground GND
U150
Dual Opamp
1 Unit 1 output 4.20 (typ) (TX mode) (5.8 V typ at VHF)
2 Unit 1 (-) input 2.39 (typ) (TX mode)
3 Unit 1 (+) input 2.39 (typ) ( TX mode)
4 Ground GND
5 Unit 2 (+) input 3.30 (typ) ( TX mode)
6 Unit 2 (-) input 3.35 (typ) (TX mode)
7 Unit 2 output 2.23 (typ) (TX mode)
8 Vcc 6.79 (TX mode)
U201
Freq Synthesizer
1 AUX2 output (NU) 0
2 AUX3 output (TRB) 0.03 To U251-19 (RX mode)
3 AUX4 output (NU) 0
4 Lock detect output 2.98 To U401-56
5PD Vdd 2.98
6 Digital ground GND
7 Serial data input 3.23
8 Serial clock input 0
9 Synth chip select 3.23 From U401-47
10 Modulation input 1.50 From U451-40
11 VMULT4 (NU) 2.98
12 VMULT3 (NU) 0
13 VRO 4.96
14 VMULT2 1.49
15 VMULT1 1.49
16 INDMULT (NU) 0
17 NC1 0
18 Ref select (NU) 0
19 Buffered 16.8 MHz out 1.54
20 Analog Vdd 3.00
21 V bypass (NU) 1.55
22 Analog ground GND
23 Ref osc XTAL1 2.07
Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)
IC Designator Pin Pin Function DC Voltage Comments (Condition)
6881096C25-B June, 2005
VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-9
U201
Freq Synthesizer
24 Ref osc XTAL2 0
25 Ref osc warp output 3.00
26 Superfilter cap 4.48
27 Superfilter base (NU) 3.76
28 Superfilter output 4.52
29 NC2 0
30 Superfilter input 4.96
31 NC3 0
32 Prescaler input 1.97
33 Prescaler ground GND
34 Prescaler Vdd 2.99
35 Prescaler Vref (NU) 1.97
36 Digital Vdd 2.99
37 TEST1 (NU) 0.01
38 TEST2 (NU) 0
39 Bias 2 3.38 (typ) (1.34 V in TX mode)
40 Bias 1 1.50 (typ) (3.20 V in TX mode)
41 Modulation output 3.42 (typ) (1.62 V typ in TX mode)
42 CCOMP (NU) 0.05
43 Steering line IOUT 9.62 (typ) Depends on frequency
44 PD ground GND
45 Steering line IADAPT 9.62 (typ) Depends on frequency
46 Adapt switch (NU) 0
47 Voltage from charge pump 12.8
48 AUX1 output (NU) 2.98
U251
VCO / Buffer
1 TX VCO current adjust 4.50
2 RX VCO current adjust 4.35
3 Superfiltered input 4.51
4 Collector RF in amp 4.35
5 RX VCO base 1.27
6 RX VCO emitter 0.48
7 RX switch output (NU) 0
8 RX buffered VCO output 3.36
9 GND_FLAG GND
10 TX buffered VCO output 3.36
11 GND_BUFFERS GND
Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)
IC Designator Pin Pin Function DC Voltage Comments (Condition)
June, 2005 6881096C25-B
6-10 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals
U251
VCO / Buffer
12 Prescaler output 2.26
13 TX switch output (NU) 0.06
14 Vcc_BUFFERS 3.00
15 TX VCO emitter 0 (RX mode)
16 TX VCO base 0 (RX mode)
17 GND_LOGIC GND
18 Vcc_LOGIC 3.00
19 TRB input 0.03 From U201-2 (RX mode)
20 FLIP input GND
U310
5 V Regulator
1 Vin 7.48
2 Ground GND
3 Control input 7.48
4 Bypass capacitor 1.26
5Vout 4.96
U320
3.3 V Regulator
1 Ground GND
2 Feedback 1.23
3 Tap (NU) 0
4 Vin 7.48
5 Vout 3.23
6 Sense (NU) 0
7 Error (reset output) 3.20
8 Shutdown input 7.48
U330
3 V Regulator
1 Vin 7.48
2Ground GND
3 Control input 7.48
4 Bypass capacitor 1.26
5 Vout 3.00
U401
Microprocessor
1 PD4_SCK serial clock input 0
2 PD5_SS 3.23 ASFIC chip select
3 PD6_VLIN 3.23 EEPROM chip select
4 PG7_R_W 3.21
5 PG6_AS 3.23
6 PG0_XA13 3.23
7 PB7_ADDR15 0.026
8 PB6_ADDR14 0.028
9 PB3_ADDR11 3.06
Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)
IC Designator Pin Pin Function DC Voltage Comments (Condition)
6881096C25-B June, 2005
VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-11
U401
Microprocessor
10 PB1_ADDR9 3.05
1 1 PB2_ADDR10 0.16
12 VDD 3.23
13 VSS GND
14 PBO_ADDR8 3.05
15 PB5_ADDR13 0.13
16 PG1_XA14 0.20
17 PG4_XA17 3.17
18 PG5_XA18 0
19 PG3_XA16 3.21
20 PG2_XA15 0.30
21 PB4_ADDR12 0.22
22 PF7_ADDR7 3.03
23 PF6_ADDR6 3.08
24 PF5_ADDR5 3.06
25 PF4_ADDR4 0.16
26 PF3_ADDR3 0.26
27 PF2_ADDR2 3.06
28 PF1_ADDR1 3.06
29 PFO_ADDR0 3.05
30 PC0_DATA0 0.69
31 PC1_DATA1 0.96
32 PC2_DATA2 1.10
33 PC3_DATA3 0.81
34 PC4_DATA4 0.62
35 PC5_DATA5 0.68
36 PC6_DATA6 0.67
37 PC7_DATA7 0.73
38 PH7_CSPROG 3.05
39 VDDL 3.23
40 VSSL GND
41 PH6_CSGP2 3.23
42 PH5_CSGP1 3.23
43 PH4_CSIO 0
44 PH3_PW4 3.21 On/off control output
45 PH2_PW3 0
Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)
IC Designator Pin Pin Function DC Voltage Comments (Condition)
June, 2005 6881096C25-B
6-12 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals
U401
Microprocessor
46 PH1_PW2 3.00
47 PH0_PW1 3.23 Synth chip select
48 XIRQ 3.00
49 PI7 1.48 RX enable
50 PI6 0.01 TX enable
51 PI5 3.23
52 PI4 0 Green LED enable
53 PI3 0 Red LED enable
54 PI2 0
55 PI1 0
56 PI0 2.98 Lock detect from U201-4
57 MODB_VSTBY 3.22 Boot mode enable
58 MODA_LIR 3.12
59 AVDD 3.23
60 PE7_AN7 3.20
61 PE6_AN6 3.20
62 PE5_AN5 2.91 VOX threshold detect
63 PE4_AN4 0.73 RSSI input
64 PE3_AN3 0.14
65 PE2_AN2 1.62
66 PE1_AN1 0 - 3.3 V Volume control wiper
67 PE0_AN0 2.48 33% of battery voltage
68 VRL 0
69 VRH 3.20
70 AVSS GND
71 PJ0_CSGP3 3.23 Side PTT button
72 PJ1_CSGP4 0 External MIC PTT
73 PJ2 3.23
74 PJ3 3.23
75 PJ4 3.23
76 PJ5 0
77 PJ6 3.23 Bottom option button
78 PJ7 3.23 Top option button
79 PA0_IC3 0
80 PA1_IC2 1.57
81 PA2_IC1 3.00
Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)
IC Designator Pin Pin Function DC Voltage Comments (Condition)
6881096C25-B June, 2005
VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-13
U401
Microprocessor
82 PA3_IC4_OC5_OC1 3.00
83 PA4_OC4_OC1 0 Squelch detect input
84 PA5_OC3_OC1 0 Channel activity input
85 PA6_OC2_OC1 0
86 PA7_PA1_OC1 0
87 VSSR GND
88 VDDR 3.23
89 ECLK (NU) 1.60
90 EXTAL 1.70 Clock from U451-28
91 XTAL 1.40 Not used
92 VDDSYN 0
93 XFC (NU) 0
94 RESET 3.20 From U320
95 LVOUT 0
96 IRQ 3.20
97 PD0_RXD 3.23
98 PD1_TXD 1.9
99 PD2_MISO 0
100 PD3_MOSI 3.23
U402
EEPROM
1 Chip select 3.23 From U401 -3
2 Serial data out 0
3 Write protect 3.23
4 Vss GND
5 Serial data in 3.23
6 Serial clock 0
7Hold 3.23
8 Vcc 3.23
U404
Flash ROM
1 A11 3.06
2 A9 3.08
3A8 3.05
4 A13 0.13
5 A14 0.31
6 NC 3.17
7 EN_WE 3.21 From U401-4
8 Vcc 3.23
9 RESET 3.20
Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)
IC Designator Pin Pin Function DC Voltage Comments (Condition)
June, 2005 6881096C25-B
6-14 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals
U404
Flash ROM
10 A16 3.17
11 A15 0.30
12 A12 0.22
13 A7 3.03
14 A6 3.08
15 A5 3.06
16 A4 0
17 A3 0.24
18 A2 3.08
19 A1 3.05
20 A0 3.05
21 D0 0.69
22 D1 0.94
23 D2 1.08
24 GND GND
25 D3 0.78
26 D4 0.59
27 D5 0.66
28 D6 0.67
29 D7 0.75
30 EN_CE 3.01 From U401-38
31 A10 0.16
32 EN_OE 0 From U401-86
U451
ASFIC_CMP
1 VDD for analog circuits 3.00
2 DISC audio input 1.34 From U510
3 Ground for analog circuits GND
4 DACU output 0
5 DACR output 0
6 DACG output 2.38 (typ) Power set (TX mode)
7 VOX peak detector output 2.91
8 PLCAP for DC integrator 0.40
9 SQIN 0.01
10 Universal audio input/output 0
11 VDD for DACs 4.95
12 SQCAP 0
13 GCB2 general purpose output 0 Audio PA_EN (unsquelched)
Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)
IC Designator Pin Pin Function DC Voltage Comments (Condition)
6881096C25-B June, 2005
VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 6-15
U451
ASFIC_CMP
14 GCB1 general purpose output 0
15 GCB0 general purpose output 3.00 BW select (25 kHz mode)
16 Squelch channel activity output 0 To U401-84
17 Squelch detect digital output 0 To U401-83
18 PL/low speed data I/O 1.50
19 High speed data I/O 3.00
20 Chip select 3.23 From U401-2
21 Serial clock input 0
22 Serial data input 3.23
23 Ground for clock synthesizer GND
24 Loop filter cap for clock syn 0.74
25 PLCAP2 for LS integrator 1.17
26 Not used 0
27 Vdd for clock synthesizer 3.00
28 Clock synthesizer output 1.70
29 1200 Hz ref for MDC decode 3.00
30 GNDDO GND
31 Ground for digital circuits GND
32 Vdd for analog switches 4.96
33 Vdd for digital circuits 3.00
34 16.8 MHz master clock input 1.54
35 GCB3 general purpose output 3.00 Internal MIC enable
36 TX audio return from option 0
37 GCB4 general purpose output 0
38 GCB5 general purpose output 0
39 RX audio send to option 1.48
40 Modulation output 1.50 To U201-10
41 RX audio out to power amp 1.51
42 Flat TX audio return from option 0.20
43 RX audio return to option 1.50
44 Flat TX audio send to option 1.50
45 Vdd for audio path I/O filters 3.00
46 Mic audio input 1.50
47 Ground for audio path I/O filters GND
48 Ext mic audio input (not used) 0
Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)
IC Designator Pin Pin Function DC Voltage Comments (Condition)
June, 2005 6881096C25-B
6-16 VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals
Notes:
U480
Dual Opamp
1 Unit 1 output 2.48
2 Unit 1 (-) input 2.48
3 Unit 1 (+) input 2.46
4 Ground GND
5 Unit 2 (+) input 0.28
6 Unit 2 (-) input 0.29
7 Unit 2 output 0
8 Vcc 4.96
U490
Audio Power Amp
1 Enable/shutdown 0.12 (Unsquelched)
2 Bias reference 3.26 (Unsquelched)
3 (+) input 3.26 (Unsquelched)
4 (-) input 3.27 (Unsquelched)
5 (-) output 3.25 (Unsquelched)
6 Vcc 7.48 (Unsquelched)
7Ground GND
8 (+) output 3.29 (Unsquelched)
U510
Dual Opamp
1 Unit 1 output 1.75
2 Unit 1 (-) input 1.56
3 Unit 1 (+) input 1.55
4 Ground GND
5 Unit 2 (+) input 1.55
6 Unit 2 (-) input 1.56
7 Unit 2 output 1.38
8 Vcc 4.96
1. All voltages are measured with a high-impedance digital voltmeter and expressed in volts DC relative to ground (0 V).
2. Voltages are measured with a DC input voltage of 7.50 + .02 volts DC applied to the battery connector (J301).
3. All voltages are measured in the squelched receive mode, unless otherwise indicated.
4. Voltages are identical for VHF and UHF models unless otherwise indicated.
Table 6-4. Troubleshooting Table for Board and IC Signals (Continued)
IC Designator Pin Pin Function DC Voltage Comments (Condition)
Chapter 7 VHF Schematic Diagrams, Overlays, and
Parts Lists
7.1 Introduction
This section provides schematic diagrams, overlays, and parts lists for the radio circuit boards and
interface connections.
7.1.1 Notes For All Schematics and Circuit Boards
* Component is frequency sensitive. Refer to the Electrical Parts List for value and usage.
1. Unle ss otherwise stated , resist ance values are in ohms (K = 1000) , capacit ance values are in
picofarads (pF) or microfarads (µF), and inductance values are in nanohenries (nH) or microhenries (µH).
2. DC voltages are measured from point indicated to chassis ground using a Moto ro la DC multimeter or equivalent. If the board has been removed from the chassis, the transmitter module
mounting screws may be used for ground connection. (Note: The antenna nut bracket is not
connected to ground.) Operating mode dependent voltages are followed by (RX) for receive
mode, (TX) for transmit mode, (UNSQ) for unsquelched mode, etc.
3. RF voltages on VHF models are measured with a Fluke model 85 RF probe. The indicated
voltages expressed in mV (RF) are DC level readings which correspond approximately 1:1 to
the RF voltage level in mV rms. RF voltages in the Receiver Front End and Receiver Back
End circuits are measured with an on-channel 100 mV (-7 dBm) RF signal applied to the
antenna jack J140.
4. RF voltages on UHF models are measured both with a high-impedance RF voltmeter having
a bandwidth in excess of 500 MHz (levels are expressed in dBm) and with a Fluke model 85
RF probe [levels are expressed in mV (RF)]. These indicated voltages are DC level readings
which correspond approximately 1:1 to the RF voltage level in mV rms, and are only approximate for UHF frequency measurements. RF voltages in the Receiver Front End and Receiver
Back End circuits are measured with an on-channel 100 mV (-7 dBm) RF signal applied to the
antenna jack J140.
5. Audio voltages are measured with a high-impedance AC rms voltmeter. The indicated voltages are expressed in mV rms. Receive mode voltages are followed by (RX) and are measured with an on-channel signal with 1 kHz modulation at 60% deviation (3 kHz for 25 kHz
channels, or 1.5 kHz for 12.5 kHz channels). Transmit mode voltages are followed by (TX)
and are measured with a 1 kHz, 10 mV rms signal present at the external microphone input
(accessory connector J471 pin 4 hot and pin 7 ground).
6. Reference Designators are assigned in the following manner:
Ref. No. Series Circuit Block
1-99 RF Front End
100-149 Transmitter RF Stages
150-200 Transmitter Power Control
201-250 Frequency Synthesizer
251-300 VCO
June, 2005 6881096C25-B
7-2 VHF Schematic Diagrams, Overlays, and Parts Lists: Introduction
7. Circuit Block Interconnection Legend:
301-400 DC Regulation
401-450 Microprocessor
451-550 Audio
Name Description
USWB+ Unswitched Battery Voltage (always on)
5V 5 volts (regulated)
5R 5 volts in RX mode only
5T 5 volts in TX mode only
RESET Low-line reset signal from U320 to uP
D3_3V Digital 3.3 volts (regulated)
3V Analog 3 volts (regulated)
TX_ENA Transmit enable signal from uP to transmitter
PWR_SET DC voltage from ASFIC to TX power control
DEMOD RX audio from backend to ASFIC
BW_SEL Backend filter BW select from ASFIC
RSSI RX signal strength indication from IFIC to uP
IF_IN/OUT 44.85 MHz from 1st mixer to high IF filter
RF_IN/OUT RX signal from antenna switch to front end
MOD OUT/IN TX modulation from ASFIC to synthesizer
16_8_MHZ Ref osc signal from synthesizer to ASFIC
SYNTH_CS Synthesizer chip select from uP
SPI_CLK Serial clock from uP
SPI_DATA_OUT Serial data from uP
LOCK Lock detect indica tion from synth to uP
PRESC VCO freq feedback from VCOBIC to synth
V_STEER Steering line voltage from synth to VCO's
V_SF Super-filtered 4.5 volts from synth to VCOBIC
VCO_MOD TX modulation from ASFIC to synthesizer
TRB TX/RX control from synth to VCOBIC
RX_INJ Buffered RX VCO output to RX 1st mixer
TX_INJ TX VCO output to transmitter input
Ref. No. Series Circuit Block
6881096C25-B June, 2005
VHF Schematic Diagrams, Overlays, and Parts Lists: Speaker and Microphone Schematic 7-3
7.1.2 Six Layer Circuit Board
Figure 7-1. Six-Layer Circuit Board: Copper Steps in Layer Sequence
7.2 Speaker and Microphone Schematic
Figure 7-2. Speaker and Microphone Schematic
7.2.1 Speaker and Microphone Parts List
Reference
Designator
Motorola Part
No.
Description
MK1 5085880L01 Microphone, electret
SP1 5085738Z08
Speaker assembly with
connector
LAYER 1 (L1)
LAYER 2 (L2)
LAYER 3 (L3)
LAYER 4 (L4)
LAYER 5 (L5)
LAYER 6 (L6)
INNER LAYERS
SIDE 1
SIDE 2
MK1
SP1
1
2
1
2
MATES WITH J470 ON
RADIO BOARD
MATES WITH J491 ON
RADIO BOARD
June, 2005 6881096C25-B
Notes:
7-4 VHF Schematic Diagrams, Overlays, and Parts Lists: Speaker and Micro phone Schematic
VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists 7-5
6881096C25-B June, 2005
Chapter 7 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists
RX_FE_VHF_R1
CONTROLLER
VCO_VHF_R1
TX_VHF_R1
RX_BE
SYNTH_VHF_R1
V_SF
V_STEER
5V 3V5R
16_8_MHZ
3V
5V
LOCK
MOD_IN
PRESC
SPI_CLK
SPI_DATA_OUT
SYNTH_CS
TRB
VCO_MOD
RSSI
5V 5R
3V5R
USWB+
5V
USWB+
V_SF
V_STEER
5T
3V
5T
PWR_SET
RX_OUT
TX_ENA
TX_INJ
USWB+
5V
BW_SEL
DEMOD
IF_IN
LOCK
MOD_OUT
PWR_SET
RSSI
SPI_CLK
SPI_DATA_OUT
SYNTH_CS
TX_ENA
USWB+
3V
5R
PRESC
RX_INJ
TRB
TX_INJ
VCO_MOD
5R
IF_OUT RX_IN
RX_INJ
5T
16_8_MHZ
3V
5R
5T
5V
BW_SEL
DEMOD
Figure 7-3. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z02-A)
7-6 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists
June, 2005 6881096C25-B
700mV (RF)
3.95V (Rx)
2.0V (Rx)
3.38V (Rx)
3.95V (Rx)
0V (Tx)
5.0V (Rx)
485mV (RF)
500mV (RF)
445mV (RF)
705mV (RF)
3.9V (Rx)
125 mV (RF)
128 mV (RF)
0.74V (Rx)
C30
30pF
0.1uF
C99
5.6K
RF BALUN
5
NC
4
6
3
2
1
R25
T41
IO1
1
2
IO2
IO33IO4
4
NC
TP2
1
CR41
HSMS2829
C36
68nH
30pF
C22
1000pF
L33
L3
C41
15pF
68nH
FE_RF_INJ
0
R26
1
C44
20pF
SH1
SHIELD
68pF
R23
22K
L21
NU
C34
R24
750
R51
51
33pF
C8
30pF
6
3
2
1
C7
T42
IF BALUN
5
NC
4
CR1
132
MMBD352
68nH
L4
68nH
L1
1000pF
C20
C3
18pF
C4
1
47pF
C31
36pF
SH40
SHIELD
TP1
1
27pF
C1
FE_5R
L51
150nH
3.3pF
C5
1
3
2
15pF
C43
BFS540
Q21
L31
68nH
C33
C2
43pF
27pF
C29
R22
6.8K
L32
10pF
68nH
L41
68nH
NC
68nH
R20
1%
6.8K
100
L40
1000pF
R21
FE_RF_IN
C26
L22
100nH
C23
1000pF
20pF
C40
C35
33pF
L52
C6
560nH
25
63
14
22pF
UMT1
Q22
68nH
1000pF
C25
C32
L2
C24
68pF
NU
1K
FE_IF_OUT
36pF
R40
C9
NU
C42
RX_IN
C51
82pF
RX_INJ
5R
IF_OUT
Figure 7-4. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z02-A)
VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists 7-7
6881096C25-B June, 2005
5V for 25kHz
RX Back End (Overtone)
0V for 12.5kHz
3.39V
3.05V
0.74V
1.5V
2.1V When -47 dBm @ antenna
9.1pF
1.1%
C53
1
2
3
5V
1
2
3
D51
1
3
2
D52
CR51
C71
IF_DEMOD
TC7W04F
1
7
0.1uF
GND1
3
4
GND2
IN1OUT
2
U52-1
C69
CFWC455E
FL53
12K
0.1uF
C73
R52
1
IN2OUT
4700pF
FL54
CFWC455G
GND1
3
GND2
4
0.1uF
C55
5V
0.1uF
C56
C62
0.1uF
C60
0.1uF
C67
0.1uF
R53
33K
2.4K
Q70
MMBT3904
1
3
2
R60
C80
22pF
1%
C59
2.7pF
R73
1.8K
NC
R74
1.2K
6
2
1.6K
U52-2
TC7W04F
5.1K
R80
R91
PBR941
Q51
1
3
2
C93
3.6pF
C90
0.1uF
NU
C63
L53
120pF
0.1uF
R82
1.2uH
2%
L54
NU
1uH
L81
5V
C52
22pF
4.7K
R57
C66
SH52
SHIELD
1
OUT IN
1
0.1uF
44.395MHz
TSS2_44_395MHZ
Y51
2
GND
4
GND1
3
2
CC1
5
CC2
1
GND1
4
GND2
3
IN
6
OUT
44.85MHz
MXF45
FL51
4
VCC
8
C58
3.9pF
PWR_GND
U52-4
GND
R81
10uF
C91
0.1uF
C65
1K
R75
12K
20K
C57
0.1uF
9180468V04
3
GND
IN1OUT
2
R64
FLTR
FL52
C81
1%
33pF
C70
IF_IN
RFIN
RFIN_DEC
2
5
RSSIOUT
RSSI_FEED
9
6
VCC
130pF
LIMIN
LIMOUT
11
13
LIM_DEC1
12
LIM_DEC2
20
MIXOUT
OSCIN
4
3
OSCOUT
10
QUADIN1AUDIOOUT
8
7
AUDIO_FEED
15
GND
18
IFAMPIN
16
IFAMPOUT
IFAMP_DEC1
19
17
IFAMP_DEC2
14
SA616
U5
1
680
R78
R77
1%
8.2K
R67
5V
IF_BAND_SEL
20K
R76
1%
12K
0.1uF
36pF
C82
5.1K
C68
R54
R66
20K
R63
C72
0.1uF
455KHz
3
21
39K
45B02
Y70
5V
IF_RSSI
SH50
SHIELD
1
R55
330
C64
0.1uF
390
R72
39K
R65
3.3K
R61
100K
R62
TC7W04F
U52-3
35
IF_5
V
C92
0.1uF
51
R90
BW_SE L
5V
IF_IN
RSSI
DEMOD
47pF
C61
47pF
C74
Figure 7-5. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z02-A)
7-8 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists
June, 2005 6881096C25-B
C206
C201
NU
RX: 0V
3.0V to 8.0V
4.5V
UNLOCK: 0V
D201
C203
100
NU
NU
TCXO
NU
62pF
0V
0V
Y201
NU
TX: 3V
LOCK: 3V
C202
0.01uF
R206
Crystal
107 mV (RF)
14R06 NU
Reference Oscillator
3V
1SV232
47k
3V
2.7pF
NU
R202
NU
Y202
150k
45J68
220pF
44 mV (RF)
205 mV (RF)
2.4 V (TYP)
D201
1SV232
6
A1
5
A2
4
A3
K1
1
K2
2
K3
3
D220
110K
R230
FN_DATA
1000pF
C231
1200pF
C244
NC
0.1uF
C216
C241
FN_PRESC
1200pF
NU
FN_TRB
C206
FN_5V
C211
0.1uF
FN_V_STEER
NC
NC
FN_MOD
51
R248
FN_V_SF
VCON
1
R206
NU
45J68
Y202
NU
GND
2
OUT
3
VCC
4
10uF
C226
16.8MHz
160K
R247
51
R244
FN_SYNTH_CS
0.1uF
C228
C205
NU
C293
470pF
0
R212
NC
NC
R223
FN_3V
NC
100
1
SHIELD
SH201
1
FN_LOCK
NC
SHIELD
SH200
C227
NC
NC
NC
1000pF
150
R220
100K
1
R246
C245
1uF
TP200
C225
10uF
NC
C223
C224
.01uF
.01uF
.01uF
TP240
1
C213
R205
470pF
C208
100
470pF
NC
NC
C210
C233
0.1uF
C243
2.2uF
4.7uF
NC
C230
5V
5V
C212
2.2uF
GND2GND1
4
OUT3IN
1
C202
NC
16.8MHz
14R06
Y201
VMULT4
VRO
13
25
WARP
23
XTAL1
24
XTAL2
62pF
1%
SFOUT
37
TEST1
38
TEST2
21
VBPASS
47
VCP
15
VMULT1
14
VMULT2
12
VMULT3
11
PREIN
33
PRE_GND
34
PRE_VDD
35
PVREF
18
REFSEL
27
SFBASE
26
SFCAP
30
SFIN
28
4
10
MODIN
41
MODOUT
17
NC1
29
NC2
31
NC3
44
PD_GND
PD_VDD
5
32
CLK
7
DATA
6
DGND
36
DVDD
19
FREFOUT
45
IADAPT
16
INDMULT
43
IOUT
LOCK
AUX2
2
AUX3
3
AUX4
20
AVDD
40
BIAS1
39
BIAS2
42
CCOMP
9
CEX
8
46
ADAPTSW
22
AGND
48
AUX1
1
560nH
L211
63A27
U201
R221
150
C219
C207
0.1uF
C232
470pF
NC
0.1uF
150K
R202
C209
470pF
FN_CLK
6
A1
5
A2
4
A3
1
K1
2
K2
3
K3
D221
.01uF
C221
NC
FN_VCO_MOD
R243
1.8K
C215
2.2uF
C218
2.2uF
C204
470pF
C201
220pF
NC
NC
C220
22pF
.01uF
C222
R245
1.5K
1000pF
FN_16_8
150K
C217
3.7%
2.7pF
R227
C203
5V
3V
PRESC
C214
1000pF
LOCK
V_SF
V_STEER
16_8_MHZ
SPI_DATA_OUT
MOD_IN
SYNTH_CS
SPI_CLK
VCO_MOD
TRB
Figure 7-6. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z02-A)
VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists 7-9
6881096C25-B June, 2005
3.0V to 8.0V
4.5V
RX: 0V
TX: 3V
206 mV (RF)
850 mV (RF)
1200 mV (RF)
1.35 V (Rx)
1.89 V (Rx)
0.1uF0.1uF
C285
L281
C274
33nH
68nH
10pF
C264
L254
10pF
1.0%
C256
750
VCO_VSF
R282
R270
L252
560nH
18
NU
VCO_MOD
L283
C282
C266
1.0%
10pF
9.1pF
47
R253
C286
11pF
L265
330nH
1SV229
D262
680
R284
C268
3.7%
2.7pF
C273
.01uF
C276
5.1pF
R272
9.1K
VCO_TX_INJ
6pF
C254
180
R283
C290
1200pF
C275
51pF
1
3
2
L264
47nH
BFS540
Q280
560nH
30
R263
L262
D251
C272
0.1uF
19
TRB_IN
TX_BASE
16
TX_EMITTER
15
TX_IADJ
1
TX_OUT
10
TX_SWITCH
13
VCC_BUFFERS
14
VCC_LOGIC
1817
GND_LOGIC
PRESC_OUT
12
RX_BASE
5
RX_EMITTER
6
RX_IADJ
2
RX_OUT
8
RX_SWITCH
7
SUPER_FLTR
3
50U54
U251
COLL_RFIN
4
FLIP_IN
20
GND_BUFFERS11GND_FLAG
9
1500pF
C269
C267
1%
36pF
C283
V_SF
C284
1200pF
33
R274
1200pF
V_SF
C265
C255
1%
18pF
L263
15pF
1%
C271
100nH
1
.01uF
SH250
SHIELD
47nH
L282
C257
100nH
L276
36pF
1%
VCO_TRB
VCO_5R
VCO_PRESC
560nH
L251
NC
C270
VCO_RX_INJ
1200pF
36K
VCO_3V
R261
C258
V_SF
VCO_V_STEER
1200pF
1200pF
1200pF
C292
C281
R264
L292
220
68nH
C277
1200pF
R280
6.8K
16pF
1%
C253
300
R273
R275
0
SHIELD
SH253
1
D261
L271
NU
220
R254
560nH
L270
330nH
L255
0
R286
L291
27nH
27pF
1%
C263
C251
8.2K
.01uF
R276
R271
NC
1K
L253
100nH
R281
9.1K
43pF
C291
SH251
SHIELD
1
R262
V_SF
V_STEER
PRESC
6.8K
VCO_MOD
5R
TX_INJ
RX_INJ
3V
TRB
Figure 7-7. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic Diagram (8486769Z02-A)
7-10 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists
June, 2005 6881096C25-B
0.9 V (Tx)
7.5 V
0 V (Rx)
0 V (Rx)
7.25 V (Tx)
1.8V (Tx)
7.4 V (Rx)
0.15 V (Tx)
2.5 V (Low)
3.0 V (Hi)
2.4 V (Hi)
1.06 V (Low)
0 V (Rx)
7.3 V (Tx)
2.5 V (Low)
3.0 V (Hi)
1100 mV (RF)
DO NOT MEASURE
1500 mV (RF)
4.9 V (Tx)
820 mV (RF)
1.5 V (Tx)
0 V (Rx)
1.6 V (Tx)
0 V (Rx)
1500pF
R157
5.6K
C100
43.67nH
L132
TAB3
3
TAB4
4
C172
1500pF
M140
ANTENNA_NUT
TAB1
1
TAB2
2
R171
6.8K
R121
150
C102
0.1uF
C107
10pF
L102
100nH
D120
MA4PH261
R111
NU
C132
C131
15pF
10pF
4.7K
R106
1500pF
C106
R152
1%
100K
R101
18
10K
R162
2.7pF
C171
R154
NU
C105
R100
300
100K
1%
RFOUT
3
VDD
2
VGG
RA07M1317M_VHF
U110
GND
5
1
RFIN
4
C113
1500pF
560nH
L101
NC
560nH
L110
0.1uF
C108
NC
C112
1500pF
BFS540
Q100
1
3
2
10pF
C135
R104
51
2.4pF
C133
L130
43.67nH
4.3V
VR110
.01uF
C156
360
R110
43.67nH
L131
1500pF
PA_TX_INJ
C103
C137
200pF
560nH
C122
15pF
U150-2
LM2904
6
5
7
8
4
L120
22pF
C123
20pF
C141
NU
C104
S2
T1
T2
330
R156
J140
G1
G2
S1
1500pF
C120
0.1uF
C170
C121
1500pF
64
1
R103
3.3K
EMB10
Q170
5
23
C111
NU
1500pF
C101
1.5K
R158
57R01
U151
NC
C114
1500pF
C159
PA_PWR_SET
1500pF
L121
47nH
D121
MA4PH261
3
2
C109
0.1uF
Q150
1
16pF
C140
1000pF
C117
100K
1%
R153
C115
1uF
150
R120
C110
0.1uF
MMBT3904
Q171
1
3
2
0.1uF
C116
R107
150
C154
1500pF
PA_RX_OUT
C158
1500pF
C150
1500pF
1500pF
C124
0.1
300
R150
SHIELD
SH100
1
R102
R151
13pF
C134
22
C155
0.1uF
1.2K
R105
1
1500pF
C151
TP150
PA_5T
R155
1%
100K
PA_USWB+
C136
560nH
L100
6.2pF
0.47uF
C153
10K
R524
C152
L103
30nH
L140
1500pF
30.54nH
PA_TX_ENA
8
4
C130
15pF
U150-1
LM2904
2
3
1
PWR_SET
USWB+
0.1uF
C157
TX_INJ
5T
TX_ENA
RX_OUT
Figure 7-8. VHF (136-162 MHz) Transmitter and Power Control Schematic Diagram (8486769Z02-A)
VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists 7-11
6881096C25-B June, 2005
DC_REGULATION
AUDIO
MICROPROCESSOR
ACCESSORY/KEYPAD
CONNECTOR
C506
1000pF
11
C503
1000pF
CNTL_SYNTH_CS
A2
2
B1
4
B2
CNTL_SPI_CLK
SWITCH
S443
1
A1
3
C403
100pF
32
1000pF
C402
CNTL_5V
SW_B+
12
A1
3
A2
2
B1
4
B2
3V
CNTL_MOD_OUT
3V
SWITCH
S441
1
24
CNTL_RSSI
8
BK1005HM471
E500
C501
1uF
17
C505
1000pF
100
7
CNTL_USWB+
R504
CNTL_5R
30
5V
CNTL_SPI_DATA_OUT
SW_B+
31
CNTL_3V
3
21
SW_B+
NC
3VD3_3V
19
TP404
18
1516
1
PC1
2
PC24PC3
8
C408
1000pF
S440
C0
C0
C1
C1
GND7GND1
9
PC0
CNTL_5T
D3_3V
SWITCH
C504
1000pF
RX_ENA
SWB+
TX_ENA
USWB+
VOLUME
C507
1000pF 1000pF
3V
5R
5T
5V
BATT_CHARGE
D3_3V
ON_OFF
RESET
14
C407
R502
100
4
CNTL_DEMOD
100
5R
CNTL_LOCK
2
R505
26
CNTL_PWR_SET
25
22
J460-1
1
6
29
28
VOX
VS_AUDIO_SEL
VS_GAIN_SEL
uP_CLK
CNTL_TX_ENA
LSIO
MOD_OUT
OPT_MIC
OPT_RX_AUD_RETURN
OPT_RX_AUD_SEND_DETECTOR
OPT_RX_AUD_SEND_UNMUTED
OPT_TX_AUD_FLAT_RETURN
OPT_TX_AUD_RETURN
OPT_TX_AUD_SEND
PWR_SET
RESET
SCI
SPI_CLK
SPI_DATA_OUT
SQ_DET
SW_B+
9
16_8_MHZ
3V
5V
ASFIC_CS
BATT_CHARGE
BOOT_ENA
BW_SEL
CH_ACT
DEMOD
EXT_MIC_PTT
F1200
HSIO
1000pF
100pF
C405
C409
1000pF
3
A2
B1
2
4
B2
USWB+
5V
5V
C404
VOX
VS_CS
VS_INT
VS_RAC
uP_CLK
SWITCH
S442
1
A1
OPT_DATA_READY
OPT_ENA
PTT
RESET
RSSI
RX_ENA
SCI
SPI_CLK
SPI_DATA_IN
SPI_DATA_OUT
SQ_DET
SW_B+
SYNTH_CS
TX_ENA
VOLUME
D3_3V
DISPL_COM_DATA_SEL
DISP_ENA
EXT_MIC_PTT
F1200
FREQ_SEL_0
FREQ_SEL_1
FREQ_SEL_2
FREQ_SEL_3
HSIO
KEYPAD_COL
KEYPAD_ROW
LOCK
LSIO
ON_OFF
OPT_BUTTON_1
OPT_BUTTON_2
R501
3V
5V
ASFIC_CS
BACKLIGHT
BATT_DETECT
BOOT_ENA
CH_ACT
R503
100
13
100
CNTL_16_8_MHZ
D3_3V
3V
10
C500
1000pF
23
5T
CNTL_BW_SEL
TP403
TP301
5
SW_B+
20
27
C406
100pF
5T
SPI_CLK
BW_SEL
MOD_OUT
SYNTH_CS
RSSI
SPI_DATA_OUT
5R
5V
USWB+
TX_ENA
DEMOD
3V
16_8_MHZ
LOCK
PWR_SET
Figure 7-9. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z02-A)
7-12 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists
June, 2005 6881096C25-B
EEPROM
GREEN LED
RED LED
FLASH
SRAM
VSS
4
WP
3
CS
1
HOLD
7
SCK
6
SI
5
SO
2
VCC
8
D3_3V
U402
X25128-2.7
C422
.01uF
C413
0.1uF
NC
4.7K
R419
NU
R434
40
VSSL87VSSR
XFC
93
48
XIRQ
XTAL
91
94
RESET
12
VDD
39
VDDL
88
VDDR
92
VDDSYN
69
VRH
68
VRL
13
VSS
71
PJ0_CSGP3
72
PJ1_CSGP4
73
PJ2
74
PJ3
75
PJ4
76
PJ5
77
PJ6
78
PJ7
56
PI055PI154PI253PI352PI451PI550PI649PI7
47
PH0_PW1
46
PH1_PW2
45
PH2_PW3
44
PH3_PW4
43
PH4_CSIO
42
PH5_CSGP1
41
PH6_CSGP2
38
PH7_CSPROG
6
PG0_XA13
16
PG1_XA14
20
PG2_XA15
19
PG3_XA16
17
PG4_XA17
18
PG5_XA18
5
PG6_AS
4
PG7_R_W
28
PF1_ADDR127PF2_ADDR226PF3_ADDR325PF4_ADDR424PF5_ADDR523PF6_ADDR622PF7_ADDR729PFO_ADDR0
PE0_AN0
67
PE1_AN1
66
PE2_AN2
65
PE3_AN3
64
PE4_AN4
63
PE5_AN5
62
PE6_AN6
61
PE7_AN7
60
37
PC7_DATA7
97
PD0_RXD
98
PD1_TXD
99
PD2_MISO
100
PD3_MOSI
1
PD4_SCK
2
PD5_SS
PD6_LVIN
3
14
PBO_ADDR8
30
PC0_DATA0
31
PC1_DATA1
32
PC2_DATA2
33
PC3_DATA3
34
PC4_DATA4
35
PC5_DATA5
36
PC6_DATA6
86
PA7_PA1_OC1
10
PB1_ADDR911PB2_ADDR109PB3_ADDR1121PB4_ADDR1215PB5_ADDR138PB6_ADDR147PB7_ADDR15
57
MODB_VSTBY
79
PA0_IC380PA1_IC281PA2_IC1
82
PA3_IC4_OC5_OC1
83
PA4_OC4_OC184PA5_OC3_OC1
PA6_OC2_OC1
85
59
AVDD
70
AVSS
89
ECLK
90
EXTAL
96
IRQ
LVOUT
95
MODA_LIR
58
U401
MC68HC11FL0
200K
1%
R424
C444
.01uF
R417
10K
1
R412
100K
TP402
1000pF
C419
C440
0.1uF
C430
.01uF
R410
10K
820
R411
1
R415
33K
D3_3V
NC
TP405
R431
NU
1
SH400
SHIELD
3
D3_3V
D3_3V
1000pF
C431
Q410
2
641
R413
100K
NC
D3_3V
C416
1000pF
C400
NU
R400
NU
1000pF
C417
.01uF
D3_3V
SHIELD
1
SW_B+
NC
C443
33K
SH401
R414
NC
D414
R430
100K
0
R432
C420
1000pF
.01uF
R421
C412
R420
100K
1%
R443
200K
1%
120
BRPY1204W
D440
10uF
100K
1%
R425
C410
0.1uF
D3_3V
C432
R441
4.7K
4.7K
R440
100K
R418
C401
0.1uF
D7
29
EN_CE
30
EN_OE
32
7
EN_WE
GND
24
NC
6
9
RESET
VCC
8
A9
2
D0
21
D1
22
23
D2
D3
25
D4
26
D5
27
D6
28
A16
10
A2
18
A3
17
16
A4
A5
15
A6
14
A7
13
A8
3
A0
20
A1
19
A10
31
A11
1
A12
12
A13
4
A14
5
A15
11
AT49LV001N_70VI
U404
C433
1000pF
C442
NC
.01uF
0.1uF
C418
2
4
3
R416
20K
SW_B+
Q440-2
NC
100K
R422
Q402
1
3
2
.01uF
C445C446
100K
.01uF
0.1uF
R423
NC
C411
C421
R445
.01uF
0.1uF
4.7K
C414
C415
10K
R446
1000pF
.01uF
1
C441
TP401
5
1
6
R433
100K
Q440-1
1
3
2
RB520S-30
D424
Q403
16
D6
17
D7
18
D8
19
22
OE
VDD
28
VSS
14
WE
27
3
A8
25
A9
24
CS
20
11
D1
D2
12
D3
13
D4
15
D5
2
A13
26
A14
1
A2
8
A3
7
A4
6
A5
5
A6
4
A7
U403
NU
10
A0
A1
9
A10
21
A11
23
A12
220
NC
R442
BACKLIGHT
3V
0.1uF
C447
SW_B+
BATT_DETECT
VS_INT
LOCK
KEYPAD_ROW
VOX
KEYPAD_COL
RSSI
5V
SCI
DISPL_COM_DATA_SEL
SPI_CLK
OPT_BUTTON_2
DISP_ENA
SPI_DATA_IN
SPI_DATA_OUT
D3_3V
HSIO
PTT
FREQ_SEL_3
FREQ_SEL_1
FREQ_SEL_2
ON_OFF
VOLUME
EXT_MIC_PTT
RESET
BOOT_ENA
VS_RAC
OPT_BUTTON_1
FREQ_SEL_0
A(18:0)
OPT_ENA
VS_CS
TX_ENA
LSIO
D(7:0)
ASFIC_CS
SYNTH_CS
RX_ENA
F1200
uP_CLK
A(12)
A(11)
A(10)
A(9)
A(8)
A(7)
A(6)
A(5)
A(4)
A(3)
A(2)
A(1)
A(0)
A(17)
A(18)
A(0)
A(1)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
D(7)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
A(16)
A(15)
A(14)
A(13)
A(18)
D(6)
D(5)
D(4)
D(3)
D(7)
D(2)
D(1)
D(0)
A(1)
A(2)
A(5)
A(6)
A(8)
A(11)
A(12)
A(13)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
OPT_DATA_READY
SQ_DET
CH_ACT
A(17)
A(16)
A(14)
A(15)
D(0)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
A(0)
A(3)
A(4)
A(7)
A(9)
A(10)
A(14)
NC
1uF
C425
220K
R406
300K
R405
1.0K
R409
Q427
100K
R408
D3_3V
D3_3V
D3_3V
D3_3V
D3_3V
D3_3V
300K
R401
D425
10K
Q425
R402
Q426
C426
1uF
51K
R404
100K
R407
10K
R403
U425
LMC7101BI
4
3
1
2
5
P13
P13
Figure 7-10. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z02-A)
VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists 7-13
6881096C25-B June, 2005
2.3 V
150 mV RMS (25 kHz) (Rx)
75 mv RMS (12.5 kHz) (Rx)
1.5 V
200 mV RMS
10 mV RMS (Tx)
0 V (Rx)
3 V (Tx)
7.5 V
100k
3.5V (UNSQ)
3.5V (UNSQ)
0.15 V (UNSQ)
3 V (UNSQ)
1.5 V
145 mV RMS
114 mV (RF)
Supply = 7.42
1/2 Supply = 3.22
INTERNAL SPEAKER
R516
R517 0
Not Placed
Not Placed
Not Placed
3.46 V RMS (Rx)(0.5 W@24 OHMS
VHF UHF
R513
R515
ACCESSORY CONNECTOR
DC Level 0.3 - 0.4 V low
MICROPHONE CONNECTOR
Not Placed 0
Not Placed
82pF
3V_A
C456
0.1uF
C499
R478
2.2K
5V_A
1uF
C498
1000pF
C493
470pF
C488
C489
470pF
NU
R516
6.8pF
C512
R513
5V
5V_B
5V_B
R471
2.2K
R483
0.1uF
C452
R481
C462
E453
BK1005HM471
0.1uF
C490
470pF
4
INNEG
INPOS
3
1
MODE
5
OUTNEG
8
OUTPOS2SVR
6
VCC
5
6
3
1
4
TDA8541
U490
7
GND
Q472
2
220pF
C513
R498
100K
0.1uF
C457
R514
R523
10K
.022uF
330
R474
3V_A
C476
150K
L471
390nH
NC
R512
C455
.022uF
0
R491
D471
1uF
C496
C495
1uF
C453
4.7uF
NC
D491
C494
2.2uF
0.1uF
C483
R475
180K
R515
Q490
UMG5
2
641
3
C464
0.1uF
R484
2.2K
Not_Placed:NU
R255
1%
3.9K
5.6K
0.1uF
C477
2
R495
R486
330K
R488
R489
0.1uF
C472
R469
10
R482
BK1005HM471
E452
3V
1
R485
47K
J470-1
680
R451
R472
2
3
1
8
4
R492
24K
C497
LM2904
U510-1
R487
0.1uF
0
2
4
3
100K
R522
1
3
2
NC
Q520-2
IMX1
Q482
R494
330K
4.7uF
C461
C458
0.1uF
Q481
Not_Placed:NU
1
3
2
3V_A
C470
0.1uF
150pF
C473
C460
0.1uF
3V
C451
0.1uF
10K
R496
Not_Placed:NU
R480
0
BK1005HM471
E451
NC
100K
R476
.01uF
Not_Placed:NU
5V_A
C481
R521
3V_A
20V
MMBZ5250B
VR474
A_MOD_OUT
.022uF
C475
C471
R477
2.2K
C479
2.2uF
220pF
C511
150pF
C474
150pF
1000pF
3V_A
3
NC
C465
C459
J491-3
R463
0.1uF
24K
33
VDDD
11
VDDDAC
45
VDDRC
27
VDDSYN
7
VOX
VR472
17
SQDET
9
SQIN
28
SYN36TXRTN
44
TXSND
10
UIO
1
VDDA
32
VDDCP
46
MICINT
40
MOD
26
NC
8
PLCAP
PLCAP2
25
43
RXRTN
39
RXSND
12
SQCAP
31
GNDD30GNDDO
47
GNDRC
23
GNDSYN
19
HSIO
24
LCAP
18
LSIO
48
MICEXT
29
F1200
15
GCB0
14
GCB1
13
GCB2
35
GCB3
37
GCB4
38
GCB5
3
GNDA
CLK
21
34
CLK168
20
CSX
6
DACG
5
DACR4DACU
22
DATA
2
DISC
U451
30C53
41
AUDIO
42
AUXTN
16
CHACT
1200pF
C467
VR471
5V_B
2
3
1
8
4
C466
U480-1
2
641
3
NU
NC
Q471
R499
24K
R462
C478
150pF
4
5V_A
R520
100K
5V
U480-2
6
5
7
8
Q470
25
6
3
1
4
R470
5V_B
2
2.2K
R497
D470
C519
5V_A
5V_B
1uF
4
S2
S3
6
5
S4
0.1uF
C454
J471
1
M1
2
M2
3
M3
S1
7
C482
NC
C463
0.1uF
C480
0.1uF
680
R473
C492
10uF
R460
24K
IMX1
Q520-1
5
1
6
C484
.033uF
Not_Placed:NU
R479
100K
R464
30K
VR473
MMBZ5250B
20V
5
7
8
4
J491-44
LM2904
U510-2
6
J491-1
1
R517
R511
100K
2.2K
R490
Not_Placed:NU
0.1uF
C518
2
641
3
C514
UMG5
U511
16pF
100K
R493
330K
220K
R519
NC
NC
R518
15V
MMBZ5245B
VR475
3V
5V
OPT_MIC
VS_GAIN_SEL
DEMOD
ASFIC_CS
BATT_CHARGE
OPT_TX_AUD_RETURN
OPT_RX_AUD_SEND_DETECTOR
CH_ACT
VOX
PWR_SET
EXT_MIC_PTT
OPT_TX_AUD_FLAT_RETURN
SW_B+16_8_MHZ
MOD_OUT
RESET
OPT_RX_AUD_RETURN
OPT_RX_AUD_SEND_UNMUTED
OPT_TX_AUD_SEND
SPI_DATA_OUT
LSIO
SPI_CLK
SQ_DET
BW_SEL
F1200
HSIO
VS_AUDIO_SEL
uP_CLK
SCI
BOOT_ENA
Figure 7-11. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z02-A)
7-14 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists
June, 2005 6881096C25-B
5 V (Rx)
0 V (Tx)
0 V (Rx)
5 V (Tx)
3.3 V (Rx)
0 V (Tx)
0 V (Rx)
3.3 V (Tx)
5 V
3.3 V
3.3 V
3 V
0 V (OFF)
7.5 V (ON)
0 V (OFF)
7.5 V (ON)
7.5 V (OFF)
0 V (ON)
0 V (OFF)
3.3 V (ON)
7.5 V
0 V (Tx)
0 V (Rx)
5 V (Tx)
5 V (Rx)
C313
.01uF
150pF
C323
U330
TK71730S
BYPASS
4
CTRL
3
GND
2
1
VIN VOUT
5
.01uF
100
R506
C304
10uF
C312
C302
390pF
10uF
C334
F301
3A
5
C333
.01uF
U310
TK71750S
BYPASS
4
CTRL
3
GND
2
1
VIN VOUT
R310
100K
VR302
MMBZ5250B
20V
C316
1200pF
100K
NC
3
1
2
R509
100K
R322
Q493
.01uF
C331
100
R507
Q311
330K
1%
R320
C321
10uF
C315
1200pF
5.1K
R313
20K
R312
5
3
HIGH
TAB16TAB2
7
2
NC
S444
SWITCH
4
1
LOW
100K
R508
.01uF
C322
1
3
C303
33uF
Q494
2
6
4
.018uF
C320
Q313
390pF
C301
C306
.01uF
Q312
D301
D3_3V
R510
330K
1
.018uF
C311
NC
TP302
D3_3V
R321
1%
200K
C314
1200pF
20V
MMBZ5250B
VR301
100K
R311
J301
DATA
NEG
POS
OUTPUT
5
SENSE
6
SHUTDOWN
8
TAP
3
NC
LP2986
U320
ERROR
7
FEEDBACK
2
GND
1
INPUT
4
C305
100pF
D3_3V
SWB+
BATT_CHARGE
.01uF
C310
D3_3V
3V
RESET
VOLUME
ON_OFF
5T
USWB+
RX_ENA
5V
TX_ENA
5R
Figure 7-12. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z02-A)
VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists 7-15
6881096C25-B June, 2005
VDDD
C3 NOT PLACED NOT PLACED
C6 NOT PLACED NOT PLACED
C8 NOT PLACED NOT PLACED
R14 NOT PLACED
GND
GND
C1 NOT PLACED NOT PLACED
LCD_SEL
MAIN BOARD CONNECTOR
GND
R5 NOT PLACED
R2 NOT PLACED
DATA
DISPLAY MODULE CONNECTOR
R15 NOT PLACED
F2
1
R4 NOT PLACED
R3 NOT PLACED
REF STD LIMITED KEYPAD
LEDBL
GND
2
3
4
#
F1
C5 NOT PLACED NOT PLACED
C7 NOT PLACED NOT PLACED
D3 NOT PLACED
D4 NOT PLACED
D5 NOT PLACED
D6 NOT PLACED
D7 NOT PLACED
D8 NOT PLACED
R13 NOT PLACED
UP
GND
CLK
DOWN
Q1 - Q12 NOT PLACED
C21 - C32 NOT PLACED
R20 NOT PLACED
R9 NOT PLACED
R10 NOT PLACED
GND
67
5
90
*
8
S31
1
2
3
SWITCH
S30
1
2
3
SWITCH
2
3
SWITCH
S29
1
2
3
1
2
3
SWITCH
S28
11
2
3
SWITCH
S27
1
2
3
S26
SWITCH
S24
1
2
3
S25
SWITCH
Q9
SWITCH
Q7
Q11
Q6Q5
130K
R5
R4
43K
R3
22K
NC
13K
R2
Q12
21
NC
Vddd_SWVddd_SW
Vddd_SW Vddd_SW
150pF
C2
J2-21
NC
Vddd
J2-27 27
150pF
NC
150pF
C3
DNF
C5
J2-16 16
DNF
J2-9 9
QSMG-H799
D1
NC
J2-23 23
R1
100K
J2-20 20
J1-33
J2-11 11
QSMG-H799
D6
QSMG-H799
150pF
D2
2
VdddVddd
DNF
C6
J2-26 26
J1-77
J1-2
J2-25 25
J2-29 G1
QSMG-H799
D7
NC
NC
J2-7 7
J1-11G2
S20
1
2
3
J1-11
1
2
3
SWITCH
1
2
3
SWITCH
S19
S17
1
2
3
SWITCH
S18
SWITCH
S23
1
2
3
SWITCH
R20
470
Vddd_SW
Q2
Q3
Q1
S32
1
2
3
Vddd_SW
Q4
SWITCH
C32
R7
13K
C31
100pF
100pF 1 00pF
C29 C30
2
J2-1 1
100pF
QSMG-H799
D3
J2-2
15
J2-22 22
J2-10 10
J2-15
R15
J2-18 18
QSMG-H799
330
C7
D8
QSMG-H799
D5
DNF
150pF
D4
QSMG-H799
R12
470
J2-6 6
J2-4 4
J2-24 24
NC
NC
J2-28 28
J2-19 19
8
NC
J2-8 8
J2-3 3
NC
J1-8
150pF
C8
NC
Q10
NC
DNF
Vddd_SWVddd_SW
Vddd_SWVddd_SW
J1-66
NC
G2
DNF
C1
150pF
Q8
J2-30
100pF
100pF
C28
S22
1
2
3
C27
S21
1
2
3
SWITCH
C21
SWITCH
100pF
C23
100pF
C22
Vddd_SW
Vddd_SWVddd_SW
100pF
14
NC
NC
J2-13 13
J2-14
Vddd
9
100pF
C24
R14
330
J1-9
NC
R13
C4
0.1uF
330
130K
R10
43K
R9
22K
R8
J2-12 12
NC
NC
G1
J2-17 17
J1-10
R11
100K
R6
J1-55
470
C26
J1-44
100pF
C25
100pF
J2-5 5
ROW
COL
LEDBL
DATA
CLK
LCD_SEL
LEDBL
LEDBL
Figure 7-13. VHF (136-162 MHz) Keypad Board Schematic Diagram (8466565A03-A)
7-16 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists
June, 2005 6881096C25-B
C1
C2
C3
C4
C5
C6
C7
C8
C9
C22
C23
C24
C25
C29
C30
C31
C32
C33
C34
C35
C36
C69
C91
C92
C112
C113
C117
C201
C202
C204
C205
C207
C208
C209
C210
C212
C213
C214
C215
C216
C217
C218
C219
C230
C231
C232
C233
C241
C243
C244
C245
C251
C253
C254
C255
C256
C257
C258
C263
C264
C265
C266
C267
C268
C269
C281
C282
C283
C284
C286
C293
C301
C302
C303
C305
C306
C400
C402
C403
C404
C406
C407
C408
C409
C410
C412
C413
C418
C419
C421
C422
C425
C426
C430 C431
C432
C433
C446
C454
C455
C458
C460
C461
C465
C470
C473
C476
C477
C478
C480
C482
C488
C489
C500
C501
C503
C504
C505
C506
C507
C513
CR1
D251
D261
D262
D301
D424
D425
D470
D471
E452
E500
F301
4
3
2
FL53
43
2
FL54
J140
3
2
J301
J470
6
4
7
5
2
3
J471
L1
L2
L3
L4
L21
L22
L31
L32
L33
L211
L251
L252
L253
L254
L255
L262
L263
L264
L265
L281
L283
L471
M140
Q21
Q171
Q280
Q402
Q403
Q425
Q426
Q427
Q440
Q472
R22
R24
R25
R26
R61
R63
R171
R205
R212
R220
R221
R223
R230
R243
R244
R245
R247
R248
R253
R254
R261
R262
R263
R264
R280
R281
R282
R283
R286
R400
R401
R402
R403
R404
R405
R406
R407
R408
R409
R410
R414
R417
R419
R424
R425
R431
R442
R443
R445 R446
R462
R463
R469
R470
R471
R472
R473
R480
R481
R482
R483
R489
R496
R503
R504
R513
R514
R521
R522
R524
2C8
C
4
S440
2
4
3
1
S441
2
4
3
1
S442
2
4
3
1
S443
4
5
3
2
S444
SH1
SH201
SH250
SH253
SH401
4
58
U52
1
2
3
4
5 U110
1
37
25
13
U201
1
4
58
U402
22
21
8
7
1
U403
32
17 16
1
U404
U425
1
37
25
13
U451
1
4
58
U480
VR110
VR301
VR302
VR471
VR472
VR473
VR475
2
3
Y70
Figure 7-14. VHF (136-162 MHz) Board Top Side View (8486769Z02-A)
VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists 7-17
6881096C25-B June, 2005
C20
C26
C40
C41
C42
C43
C44
C51
C52
C53
C55
C56
C57
C58
C59
C60
C61
C62
C63
C64
C65
C66
C67
C68
C70
C71
C72
C73
C74
C80
C81
C82
C90
C93
C99
C100
C101
C102
C103
C104
C105
C106
C107
C108
C109
C110
C111
C114
C115
C116
C120
C121
C122
C123
C124
C130
C131
C132
C133
C134
C135
C136
C137
C140
C141
C150
C151
C152
C153
C154
C155
C156
C157
C158
C159
C170
C171
C172
C203
C206
C211
C220
C221
C222
C223
C224
C225
C226
C227
C228
C270
C271
C272
C273
C274
C275
C276
C277
C285
C290
C291
C292
C304
C310
C311
C312
C313
C314
C315
C316
C320
C321
C322
C323
C331
C333
C334
C401
C405
C411
C414
C415
C416
C417
C420
C440
C441
C442
C443
C444
C445
C447
C451
C452
C453
C456
C457
C459
C462
C463
C464
C466
C467
C471
C472
C474
C475
C479
C481
C483
C484
C490
C492
C493
C494
C495
C496
C497
C498
C499
C511
C512
C514
C518
C519
CR41
CR51
D51
D52
D120
D121
D201
D220
D221
D414
4
3
2
D440
D491
E451
E453
2
3
4
5
6
FL51
2
3
FL52
29
28
2
29
30
32
31
J460
2
J491
L40
L41
L51
L52
L53
L54
L81
L100
L101
L102
L103
L110
L120
L121
L130
L131
L132
L140
L270
L271
L276
L282
L291
L292
Q22
Q51
Q70
Q100
Q150
1
6
3
4
Q170
Q311
Q312
4
3
Q313
4
3
Q410
Q470
4
3
Q471
Q481
Q482
4
3
Q490
Q493
4
3
Q494
Q520
R20
R21
R23
R40
R51
R52
R53
R54
R55
R57
R60
R62
R64
R65
R66
R67
R72
R73
R74
R75
R76
R77
R78
R80
R81
R82
R90
R91
R100
R101
R102
R103
R104
R105
R106
R107
R110
R111
R120
R121
R150
R151
R152
R153
R154
R155
R156
R157
R158
R162
R202
R206
R227
R246
R255
R270
R271
R272
R273
R274
R275
R276
R284
R310
R311
R312
R313
R320
R321
R322
R411
R412
R413
R415
R416
R418
R420
R421
R422
R423
R430
R432
R433
R434
R440
R441
R451
R460
R464
R474
R475
R476
R477
R478
R479
R484
R485
R486
R487
R488
R490
R491
R492
R493
R494
R495
R497
R498
R499
R501
R502
R505
R506
R507
R508
R509
R510
R511
R512
R515
R516
R517
R518
R519
R520
R523
SH40
SH50 SH52
SH100
SH200
SH251
SH400
6
4
3
T41
6
4
3
T42
TP1
TP2
TP150
TP200
TP240
TP301
TP302
TP401
TP402
TP403
TP404
TP405
11
1
20
10
U51
1
4
58
U150
U151
11
1
20
10
U251
U310
4
58
U320
U330
1
76
51
26
U401
1
4
58
U490
1
4
58
U510
4
3
U511
VR474
4
3
2
Y51
4
3
2
Y201
Y202
Figure 7-15. VHF (136-162 MHz) Board Bottom Side View (8486769Z02-A)
7-18 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists
June, 2005 6881096C25-B
Component Side
Solder Side
C1
C2
C3
C4 C5
C6
C7
C8
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
C31
C32
G1
G2
9
J1
28
1
g1
g2
J2
4
3
Q1
4
3
Q2
4
3
Q3
4
3
Q4
4
3
Q5
4
3
Q6
4
3
Q7
4
3
Q8
4
3
Q9
4
3
Q10
4
3
Q11
4
3
Q12
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R20
D1
D2
D3
D4
D5
D6
D7
D8
S17S18 S19
S20
S21
S22S23S24
S25
S26
S27S28 S29
S30
S31
S32
Figure 7-16. VHF (136-162 MHz) Keypad Board (8466565A03-B)
VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists 7-19
6881096C25-B June, 2005
VHF (136-162 MHz) Radio Parts List (8486769Z02-A)
Circuit
Ref
Motorola
Part No.
Description
C1 2109445U43 CAP, 27pF
C2 2109445U48 CAP, 43pF
C3 2109445U49 CAP, 47pF
C4 2109445U39 CAP, 18pF
C5 2109445U15 CAP, 3.3pF
C6 2109445U41 CAP, 22pF
C7 2109445U45 CAP, 33pF
C8 2109445U44 CAP, 30pF
C9 Not_Placed CAP, 24pF
C20 2113743L17 CAP, 1000pF
C22 2113743L17 CAP, 1000pF
C23 2113743L17 CAP, 1000pF
C24 Not_Placed CAP, 6.2pF
C25 2113743L17 CAP, 1000pF
C26 2113743L17 CAP, 1000pF
C29 2109445U27 CAP, 10pF
C30 2109445U44 CAP, 30pF
C31 2109445U46 CAP, 36pF
C32 2109445U53 CAP, 68pF
C33 2109445U43 CAP, 27pF
C34 2109445U53 CAP, 68pF
C35 2109445U45 CAP, 33pF
C36 2109445U44 CAP, 30pF
C40 2109445U40 CAP, 20pF
C41 2109445U37 CAP, 15pF
C42 2109445U46 CAP, 36pF
C43 2109445U37 CAP, 15pF
C44 2109445U40 CAP, 20pF
C51 2113743N48 CAP, 82pF
C52 2109445U41 CAP, 22pF
C53 2109445U26 CAP, 9.1pF
C55 2113743M24 CAP, 0.1uF
C56 2113743E20 CAP, 0.1uF
C57 2113743M24 CAP, 0.1uF
C58 2113743N16 CAP, 3.9pF
C59 2113743N12 CAP, 2.7pF
C60 2113743M24 CAP, 0.1uF
C61 2113743N46 CAP, 68pF
C62 2113743M24 CAP, 0.1uF
C63 2113743M24 CAP, 0.1uF
C64 2113743M24 CAP, 0.1uF
C65 2113743M24 CAP, 0.1uF
C66 2113743M24 CAP, 0.1uF
C67 2113743M24 CAP, 0.1uF
C68 2113743M24 CAP, 0.1uF
C69 2113743M24 CAP, 0.1uF
C70 2113743N53 CAP, 130pF
C71 2113743E20 CAP, 0.1uF
C72 2113743M24 CAP, 0.1uF
C73 2113743L33 CAP, 4700pF
C74 2113743N42 CAP, 47pF
C80 2109445U41 CAP, 22pF
C81 2109445U45 CAP, 33pF
C82 2109445U46 CAP, 36pF
C90 2113743M24 CAP, 0.1uF
C91 2311049A57 CAP, 10uF
C92 2113743E20 CAP, 0.1uF
C93 Not_Placed CAP, 3.6pF
C99 2113743M24 CAP, 0.1uF
C100 2113743L21 CAP, 1500pF
C101 2113743L21 CAP, 1500pF
C102 2113743M24 CAP, 0.1uF
C103 2113743L21 CAP, 1500pF
C104 Not_Placed CAP, 27pF
C105 Not_Placed CAP, 10pF
C106 2113743L21 CAP, 1500pF
C107 2113743N26 CAP, 10pF
C108 2113743M24 CAP, 0.1uF
C109 2113743M24 CAP, 0.1uF
C110 2113743M24 CAP, 0.1uF
C111 Not_Placed CAP, 1500pF
C112 2113743L21 CAP, 1500pF
C113 2113743L21 CAP, 1500pF
C114 2113743L21 CAP, 1500pF
C115 2311049A07 CAP, 1uF
C116 2113743M24 CAP, 0.1uF
C117 2113741F25 CAP, 1000pF
C120 2113743L21 CAP, 1500pF
C121 2113743L21 CAP, 1500pF
C122 2113740F31 CAP, 15pF
C123 2113740F34 CAP, 20pF
C124 2113743L21 CAP, 1500pF
C130 2113740F31 CAP, 15pF
C131 2113740F27 CAP, 10pF
C132 2113740F31 CAP, 15pF
C133 2113740F12 CAP, 2.4pF
C134 2113740F30 CAP, 13pF
C135 2113740F27 CAP, 10pF
C136 2113740F22 CAP, 6.2pF
C137 2113740F58 CAP, 200pF
C140 2113740F32 CAP, 16pF
C141 2113740F35 CAP, 22pF
C150 2113743L21 CAP, 1500pF
C151 2113743L21 CAP, 1500pF
C152 2113743L21 CAP, 1500pF
C153 2113743K18 CAP, 0.47uF
C154 2113743L21 CAP, 1500pF
C155 2113743E20 CAP, 0.1uF
C156 2113743L41 CAP, .01uF
C157 2113743M24 CAP, 0.1uF
C158 2113743L21 CAP, 1500pF
Circuit
Ref
Motorola
Part N o.
Description
C159 2113743L21 CAP, 1500pF
C170 2113743M24 CAP, 0.1uF
C171 2113743N12 CAP, 2.7pF
C172 2113743L21 CAP, 1500pF
C201 2113740F59 CAP, 220pF
C202 2109445U52 CAP, 62pF
C203 2109445U13 CAP, 2.7pF
C204 2113743L09 CAP, 470pF
C205 Not_Placed CAP, 2.7pF
C206 Not_Placed CAP, 1000pF
C207 2113743L09 CAP, 470pF
C208 2113743L09 CAP, 470pF
C209 2113743L09 CAP, 470pF
C210 2113743L09 CAP, 470pF
C211 2113743E20 CAP, 0.1uF
C212 2113743F18 CAP, 2.2uF
C213 2113743L41 CAP, .01uF
C214 2113743L17 CAP, 1000pF
C215 2113743F18 CAP, 2.2uF
C216 2113743E20 CAP, 0.1uF
C217 2113743L17 CAP, 1000pF
C218 2113743F18 CAP, 2.2uF
C219 2113743E20 CAP, 0.1uF
C220 2113743N34 CAP, 22pF
C221 2113743L41 CAP, .01uF
C222 2113743L41 CAP, .01uF
C223 2113743L41 CAP, .01uF
C224 2113743L41 CAP, .01uF
C225 2311049A57 CAP, 10uF
C226 2311049A57 CAP, 10uF
C227 2113743L17 CAP, 1000pF
C228 2113743E20 CAP, 0.1uF
C230 2113743F18 CAP, 2.2uF
C231 2113743L17 CAP, 1000pF
C232 2113743E20 CAP, 0.1uF
C233 2311049A56 CAP, 4.7uF
C241 2113743L19 CAP, 1200pF
C243 2113741M69 CAP, 0.1uF
C244 2113741F27 CAP, 1200pF
C245 2311049A08 CAP, 1uF
C251 2113741F49 CAP, .01uF
C253 2109445U38 CAP, 16pF
C254 2109445U30 CAP, 6pF
C255 2109445U39 CAP, 18pF
C256 2109445U27 CAP, 10pF
C257 2109445U46 CAP, 36pF
C258 2113743L19 CAP, 1200pF
C263 2109445U43 CAP, 27pF
C264 2109445U27 CAP, 10pF
C265 2109445U37 CAP, 15pF
C266 2109445U27 CAP, 10pF
Circuit
Ref
Motorola
Part No.
Description
C267 2109445U46 CAP, 36pF
C268 2109445U13 CAP, 2.7pF
C269 2113743L21 CAP, 1500pF
C270 2113743L19 CAP, 1200pF
C271 2113743L41 CAP, .01uF
C272 2113743E20 CAP, 0.1uF
C273 2113743L41 CAP, .01uF
C274 2113743E20 CAP, 0.1uF
C275 2113743L19 CAP, 1200pF
C276 2113743N19 CAP, 5.1pF
C277 2113743L19 CAP, 1200pF
C281 2113743L19 CAP, 1200pF
C282 2113743N25 CAP, 9.1pF
C283 2113743L19 CAP, 1200pF
C284 2113743L19 CAP, 1200pF
C285 2113743E20 CAP, 0.1uF
C286 2113743N27 CAP, 11pF
C290 2113743N43 CAP, 51pF
C291 2109445U48 CAP, 43pF
C292 2113743L19 CAP, 1200pF
C293 2113743L09 CAP, 470pF
C301 2113743L07 CAP, 390pF
C302 2113743L07 CAP, 390pF
C303 2311049A97 CAP, 33uF
C304 2113743L41 CAP, .01uF
C305 2113743N50 CAP, 100pF
C306 2113741F49 CAP, .01uF
C310 2113743L41 CAP, .01uF
C311 2113743E05 CAP, .018uF
C312 2311049A57 CAP, 10uF
C313 2113743L41 CAP, .01uF
C314 2113743L19 CAP, 1200pF
C315 2113743L19 CAP, 1200pF
C316 2113743L19 CAP, 1200pF
C320 2113743E05 CAP, .018uF
C321 2311049A57 CAP, 10uF
C322 2113743L41 CAP, .01uF
C323 2113743N54 CAP, 150pF
C331 2113743L41 CAP, .01uF
C333 2113743L41 CAP, .01uF
C334 2311049A57 CAP, 10uF
C400 Not_Placed CAP, .022uF
C401 2113743M24 CAP, 0.1uF
C402 2113743L17 CAP, 1000pF
C403 2113743N50 CAP, 100pF
C404 2113743L17 CAP, 1000pF
C405 2113743N50 CAP, 100pF
C406 2113743N50 CAP, 100pF
C407 2113743L17 CAP, 1000pF
C408 2113743L17 CAP, 1000pF
C409 2113743L17 CAP, 1000pF
Circuit
Ref
Motorola
Part N o.
Description
7-20 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists
June, 2005 6881096C25-B
C410 2311049A57 CAP, 10uF
C411 2113743M24 CAP, 0.1uF
C412 2113743L17 CAP, 1000pF
C413 2113743M24 CAP, 0.1uF
C414 2113743M24 CAP, 0.1uF
C415 2113743L17 CAP, 1000pF
C416 2113743L17 CAP, 1000pF
C417 2113743L17 CAP, 1000pF
C418 2113743M24 CAP, 0.1uF
C419 2113743L17 CAP, 1000pF
C420 2113743L41 CAP, .01uF
C421 2113743L41 CAP, .01uF
C422 2113743L41 CAP, .01uF
C425 2113743A31 CAP, 1.0uF
C426 2311049A07 CAP, 1.0uF
C430 2113743M24 CAP, 0.1uF
C431 2113743L17 CAP, 1000pF
C432 2113743M24 CAP, 0.1uF
C433 2113743L17 CAP, 1000pF
C440 2113743L41 CAP, .01uF
C441 2113743L41 CAP, .01uF
C442 2113743L41 CAP, .01uF
C443 2113743L41 CAP, .01uF
C444 2113743L41 CAP, .01uF
C445 2113743L41 CAP, .01uF
C446 2113743L41 CAP, .01uF
C447 2113743M24 CAP, 0.1uF
C451 2113743M24 CAP, 0.1uF
C452 2113743E20 CAP, 0.1uF
C453 2311049A56 CAP, 4.7uF
C454 2113743E20 CAP, 0.1uF
C455 2113743L48 CAP, .022uF
C456 2113743E20 CAP, 0.1uF
C457 2113743E20 CAP, 0.1uF
C458 2113743E20 CAP, 0.1uF
C459 2113743E20 CAP, 0.1uF
C460 2113743E20 CAP, 0.1uF
C461 2113928C04 CAP, 4.7uF
C462 2113743E20 CAP, 0.1uF
C463 2113743E20 CAP, 0.1uF
C464 2113743E20 CAP, 0.1uF
C465 2113743L17 CAP, 1000pF
C466 Not_Placed CAP, 470pF
C467 2113743L19 CAP, 1200pF
C470 2113743E20 CAP, 0.1uF
C471 2113743F18 CAP, 2.2uF
C472 2113743E20 CAP, 0.1uF
C473 2113743N54 CAP, 150pF
C474 2113743N54 CAP, 150pF
C475 2113743L48 CAP, .022uF
C476 2113743L48 CAP, .022uF
Circuit
Ref
Motorola
Part No.
Description
C477 2113743M24 CAP, 0.1uF
C478 2113743N54 CAP, 150pF
C479 2113743N54 CAP, 150pF
C480 2113743E20 CAP, 0.1uF
C481 Not_Placed CAP, .01uF
C482 Not_Placed CAP, .01uF
C483 2113928H02 CAP, 0.22uF
C484 Not_Placed CAP, .033uF
C488 2113743L09 CAP, 470pF
C489 2113743L09 CAP, 470pF
C490 2113743L09 CAP, 470pF
C492 2113928J08 CAP, 10uF
C493 2113743L17 CAP, 1000pF
C494 2113743F18 CAP, 2.2uF
C495 2113743F16 CAP, 1uF
C496 2113743F16 CAP, 1uF
C497 2113743E20 CAP, 0.1uF
C498 2113743F16 CAP, 1uF
C499 2113743N40 CAP, 39pF
C500 2113743L17 CAP, 1000pF
C501 2113743F16 CAP, 1uF
C503 2113743L17 CAP, 1000pF
C504 2113743L17 CAP, 1000pF
C505 2113743L17 CAP, 1000pF
C506 2113743L17 CAP, 1000pF
C507 2113743L17 CAP, 1000pF
C511 2113740F59 CAP, 220pF
C512 2113743N22 CAP, 6.8pF
C513 2113740F59 CAP, 220pF
C514 2113743N31 CAP, 16pF
C518 2113743E20 CAP, 0.1uF
C519 2113743F16 CAP, 1uF
CR1 4813825A19 dual Schottky, MMBD352
CR41 4802246J04 quad ring diode, HSMS2829
CR51 4813825A19 dual Schottky, MMBD352
D51 4802245J97 dual silicon DAN235ETL
D52 4802245J97 dual silicon DAN235ETL
D120 4880973Z02 silicon PIN, MA4PH261
D121 4880973Z02 silicon PIN, MA4PH261
D201 4862824C03 varactor, 1SV232
D220 4802233J09 triple diode, IMN10
D221 4802233J09 triple diode, IMN10
D251 4805649Q13 dual varactor, 1SV228
D261 4805649Q13 dual varactor, 1SV228
D262 4862824C01 varactor, 1SV229
D301 4813833A19 silicon, reverse polarity,
MBRM120ET3
D414 4805129M41 Schottky, MMBD501
D424 4809924D18 Schottky, RB520S-30
D425 4805129M41 SOT SMBD1022 RH29M19
LH
Circuit
Ref
Motorola
Part No.
Description
D440 4805729G49 dual LED red/green,
BRPY1204W
D470 4809924D18 Schottky, RB520S-30
D471 4809924D18 Schottky, RB520S-30
D491 Not_Placed Schottky, MMBD501
E451 2480640Z01 bead, BK1005HM471
E452 2480640Z01 bead, BK1005HM471
E453 2480640Z01 bead, BK1005HM471
E500 2480640Z01 bead, BK1005HM471
F301 6580542Z01 fuse, 3 amp
FL51 9186801Z01 OSC,XTAL,,44.85MHZ
FL52 9180468V04 4-pole ceramic filter, 455 kHz,
CFU455F
FL53 9180469V05 6-pole ceramic, filter, 455 kHz,
CFWC455E
FL54 9180469V03 6-pole ceramic filter, 455 kHz,
CFWC455G
J140 0986428Z01 connector, external antenna
J301 0986565Z01 battery contact assembly
J460 0986615Z01 CONN,ZIF,28 CONT TIN CBL
J470 0985818A01 connector, 2-pin internal mic
J471 0980683Z03 connector, 2.5 / 3.5mm,
accessories
J491 2809926G01 connector, 2-pin internal
speaker
L1 2413923C09 IDCTR, 68nH
L2 2413923C09 IDCTR, 68nH
L3 2413923C09 IDCTR, 68nH
L4 2413923C09 IDCTR, 68nH
L21 Not_Placed IDCTR, 39nH
L22 2413926N24 IDCTR, 100nH
L31 2413923C09 IDCTR, 68nH
L32 2413923C09 IDCTR, 68nH
L33 2413923C09 IDCTR, 68nH
L40 2413923C09 IDCTR, 68nH
L41 2413923C09 IDCTR, 68nH
L51 2413926N26 IDCTR, 150nH
L52 2462587V43 IDCTR, 560nH
L53 2113743N52 CAP, 120pF
L54 2413923A25 IDCTR, 1.2uH
L81 2413923A19 IDCTR, 1uH
L100 2413926K32 IDCTR, 560nH
L101 2413926K32 IDCTR, 560nH
L102 2409377M17 IDCTR, 100nH
L103 2409377M31 IDCTR, 30nH
L110 2413926K32 IDCTR, 560nH
L120 2413926K32 IDCTR, 560nH
L121 2462587N49 IDCTR, 47nH
L130 2479990N01 IDCTR, 43.67nH
L131 2479990N01 IDCTR, 43.67nH
L132 2479990N01 IDCTR, 43.67nH
Circuit
Ref
Motorola
Part No.
Description
L140 2479990M01 IDCTR, 30.54nH
L211 2413926K32 IDCTR, 560nH
L251 2413926K32 IDCTR, 560nH
L252 2413926K32 IDCTR, 560nH
L253 2409377M17 IDCTR, 100nH
L254 2413923C05 IDCTR, 33nH
L255 2413926K29 IDCTR, 330nH
L262 2413926K32 IDCTR, 560nH
L263 2409377M17 IDCTR, 100nH
L264 2413923C07 IDCTR, 47nH
L265 2413926K29 IDCTR, 330nH
L270 2413926K32 IDCTR, 560nH
L271 Not_Placed IDCTR, 560nH
L276 2413926N24 IDCTR, 100nH
L281 2413926N22 IDCTR, 68nH
L282 2413926N20 IDCTR, 47nH
L283 Not_Placed IDCTR, 270nH
L291 2413926N17 IDCTR, 27nH
L292 2413926N22 IDCTR, 68nH
L471 2413926K30 IDCTR, 390nH
M140 0286427Z01 antenna nut
Q21 4802245J95 silicon NPN, BFS540
Q22 4805723X02 dFcual silicon PNP, UMT1
Q51 4802197J95 silicon NPN, PBR941
Q70 4880214G02 silicon NPN, MMBT3904
Q100 4802245J95 silicon NPN, BFS540
Q150 4880214G02 silicon NPN, MMBT3904
Q170 4809939C34 dual silicon PNP, EMB10
Q171 4880214G02 silicon NPN, MMBT3904
Q280 4802245J95 silicon NPN, BFS540
Q311 4809579E18 P-channel MOSFET, TP0101T
Q312 4809579E18 P-channel MOSFET, TP0101T
Q313 4802245J54 dual digit NPN, UMG5
Q402 4880048M01 digital NPN, DTC144EKA
Q403 4813824A17 silicon PNP, MMBT3906
Q410 4802245J54 dual digit NPN, UMG5
Q425 4809579E18 TSTR MOSFET P-CHAN
TP010IT
Q426 4809579E18 TSTR MOSFET P-CHAN
TP010IT
Q427 4809579E18 TSTR MOSFET P-CHAN
TP010IT
Q440 5180159R01 dual NPN, IMX1
Q470 4805723X02 dual silicon PNP, UMT1
Q471 4802245J54 dual digital NPN, UMG5
Q472 4805723X02 dual silicon PNP, UMT1
Q481 Not_Placed MMBT3906
Q482 Not_Placed MMBT3904
Q490 4802245J54 dual digital NPN, UMG5
Q493 4809579E18 P-channel MOSFET, TP0101T
Q494 4802245J54 dual digital NPN, UMG5
Circuit
Ref
Motorola
Part No.
Description
VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists 7-21
6881096C25-B June, 2005
Q520 5180159R01 dual NPN, IMX1
R20 0662057U97 RES, 6.8K
R21 0662057M50 RES, 100
R22 0662057M94 RES, 6.8K
R23 0662057V11 RES, 22K
R24 0662057M71 RES, 750
R25 0662057M92 RES, 5.6K
R26 0662057M01 RES, 0
R40 0662057M74 RES, 1K
R51 0662057M43 RES, 51
R52 0662057N01 RES, 12K
R53 0662057N11 RES, 33K
R54 0662057M91 RES, 5.1K
R55 0662057M62 RES, 330
R57 0662057M90 RES, 4.7K
R60 0662057M83 RES, 2.4K
R61 0662057N23 RES, 100K
R62 0662057M86 RES, 3.3K
R63 0662057N13 RES, 39K
R64 0662057N06 RES, 20K
R65 0662057N13 RES, 39K
R66 0662057N06 RES, 20K
R67 0662057N06 RES, 20K
R72 0662057M64 RES, 390
R73 0662057M80 RES, 1.8K
R74 0662057M76 RES, 1.2K
R75 0662057N01 RES, 12K
R76 0662057V04 RES, 12K
R77 0662057U99 RES, 8.2K
R78 0662057M70 RES, 680
R80 0662057M91 RES, 5.1K
R81 0662057M74 RES, 1K
R82 Not_Placed RES, 0
R90 0662057M43 RES, 51
R91 0662057M79 RES, 1.6K
R100 0662057M61 RES, 300
R101 0662057M32 RES, 18
R102 0662057M61 RES, 300
R103 0662057M86 RES, 3.3K
R104 0662057A18 RES, 51
R105 0662057M76 RES, 1.2K
R106 0662057M90 RES, 4.7K
R107 0662057M54 RES, 150
R110 0662057M63 RES, 360
R111 Not_Placed RES, 2.7K
R120 0662057C55 RES, 150
R121 0662057C55 RES, 150
R150 0680539Z01 RES, 0.1
R151 0662057A09 RES, 22
R152 0662057V27 RES, 100K
R153 0662057V27 RES, 100K
Circuit
Ref
Motorola
Part No.
Description
R154 0662057V27 RES, 100K
R155 0662057V27 RES, 100K
R156 0662057M62 RES, 330
R157 0662057M92 RES, 5.6K
R158 0662057M78 RES, 1.5K
R162 0662057M98 RES, 10K
R171 0662057M94 RES, 6.8K
R202 0662057N27 RES, 150K
R205 0662057M50 RES, 100
R206 Not_Placed RES, 100
R212 0662057C01 RES, 0
R220 0662057M54 RES, 150
R221 0662057M54 RES, 150
R223 0662057M50 RES, 100
R227 0662057N27 RES, 150K
R230 0662057N24 RES, 110K
R243 0662057M80 RES, 180
R244 0662057M43 RES, 51
R245 0662057M78 RES, 1.5K
R246 0662057N23 RES, 100K
R247 0662057N28 RES, 160K
R248 0662057M43 RES, 51
R253 0662057M42 RES, 47
R254 0662057M58 RES, 220
R255 0662057U91 RES, 3.9K
R261 0662057N12 RES, 36K
R262 0662057M94 RES, 6.8K
R263 0662057M37 RES, 30
R264 0662057M58 RES, 220
R270 0662057M32 RES, 18
R271 0662057M96 RES, 8.2K
R272 0662057M97 RES, 9.1K
R273 0662057M61 RES, 300
R274 0662057M38 RES, 33
R275 0662057M01 RES, 0
R276 0662057M74 RES, 1K
R280 0662057M94 RES, 6.8K
R281 0662057M97 RES, 9.1K
R282 0662057M71 RES, 750
R283 0662057M56 RES, 180
R284 0662057M70 RES, 680
R286 0662057M01 RES, 0
R310 0662057N23 RES, 100K
R311 0662057N23 RES, 100K
R312 0662057N06 RES, 20K
R313 0662057M91 RES, 5.1K
R320 0662057V43 RES, 330K
R321 0662057V35 RES, 200K
R322 0662057N23 RES, 100K
R400 Not_Placed RES, 100K
R401 0662057N34 RES, 300K
Circuit
Ref
Motorola
Part N o.
Description
R402 0662057M98 RES, 10K
R403 0662057M98 RES, 10K
R404 0662057N16 RES, 51K
R405 0662057N34 RES, 300K
R406 0662057N31 RES, 220K
R407 0662057N23 RES, 100K
R408 0662057N23 RES, 100K
R409 0662057M74 RES, 18K
R410 0662057M98 RES, 10K
R411 0662057M72 RES, 820
R412 0662057N23 RES, 100K
R413 0662057N23 RES, 100K
R414 0662057N11 RES, 33K
R415 0662057N11 RES, 33K
R416 0662057N06 RES, 20K
R417 0662057M98 RES, 10K
R418 0662057N23 RES, 100K
R419 0662057M90 RES, 4.7K
R420 0662057V35 RES, 200K
R421 0662057V27 RES, 100K
R422 0662057N23 RES, 100K
R423 0662057N23 RES, 100K
R424 0662057V35 RES, 200K
R425 0662057V27 RES, 100K
R430 0662057N23 RES, 100K
R431 Not_Placed RES, 100K
R432 0662057M01 RES, 0
R433 0662057N23 RES, 100K
R434 Not_Placed RES, 100K
R440 0662057M90 RES, 4.7K
R441 0662057M90 RES, 4.7K
R442 0662057A33 RES, 220
R443 0662057A27 RES, 120
R445 0662057M90 RES, 4.7K
R446 0662057M98 RES, 10K
R451 0662057N15 RES, 47K
R460 0662057N08 RES, 24K
R462 0662057N08 RES, 24K
R463 0662057N08 RES, 24K
R464 0662057N10 RES, 30K
R469 0662057M26 RES, 10
R470 0662057M82 RES, 2.2K
R471 0662057M82 RES, 2.2K
R472 0662057M70 RES, 680
R473 0662057M70 RES, 680
R474 0662057A37 RES, 330
R475 0662057N29 RES, 180K
R476 0662057N23 RES, 100K
R477 0662057M82 RES, 2.2K
R478 0662057M82 RES, 2.2K
R479 0662057N23 RES, 100K
Circuit
Ref
Motorola
Part No.
Description
R480 0662057B47 RES, 0
R481 Not_Placed RES, 100K
R482 Not_Placed RES, 330K
R483 Not_Placed RES, 150K
R484 Not_Placed RES, 2.2K
R485 Not_Placed RES, 100K
R486 Not_Placed RES, 100K
R487 0662057M01 RES, 0
R488 0662057N35 RES, 330K
R489 Not_Placed RES, 91K
R490 Not_Placed RES, 2.2K
R491 0662057M01 RES, 0
R492 0662057N08 RES, 24K
R493 0662057N35 RES, 330K
R494 0662057V43 RES, 330K
R495 0662057M92 RES, 5.6K
R496 Not_Placed RES, 10K
R497 Not_Placed RES, 1MEG
R498 Not_Placed RES, 47K
R499 Not_Placed RES, 270K
R501 0662057M50 RES, 100
R502 0662057M50 RES, 100
R503 0662057M50 RES, 100
R504 0662057M50 RES, 100
R505 0662057M50 RES, 100
R506 0662057M50 RES, 100
R507 0662057M50 RES, 100
R508 0662057N23 RES, 100K
R509 0662057N23 RES, 100K
R510 0662057N35 RES, 330K
R511 0662057N23 RES, 100K
R512 0662057N27 RES, 150K
R513 Not_Placed RES, 100K
R514 0662057N23 RES, 100K
R515 Not_Placed RES, 0
R516 Not_Placed RES, 0
R517 0662057M01 RES, 0
R518 0662057N31 RES, 220K
R519 0662057N23 RES, 100K
R520 0662057N23 RES, 100K
R521 Not_Placed RES, 100K
R522 0662057N23 RES, 100K
R523 0662057M98 RES, 10K
R524 0662057M98 RES, 10K
S440 4080710Z14 &
4080710Z15
switch, rotary, 16 and 32/64 -
channel select
S441 4070354A01 pushbutton switch, PTT
S442 4070354A01 pushbutton switch, side option
(lower)
S443 4070354A01 pushbutton switch, side option
(upper)
Circuit
Ref
Motorola
Part N o.
Description
7-22 VHF 136-162 MHz (8486769Z02-A) Schematic Diagrams, Overlays, and Parts Lists
June, 2005 6881096C25-B
* Motorola Depot Servicing only
VHF (136-162 MHz) Keypad Board Parts List
(8466565A03-B)
S444 1880619Z02 switch, rotary on-off, with 10K
volume control
SH1 2686421Z01 shield, comp side, RF front
end
SH40 2686419Z01 shield, solder side, first mixer
SH50 2686423Z01 shield , solder side, IFIC and
2nd LO crystal
SH52 2686424Z01 shield, solder side, high IF
crystal filter
SH100 2686418Z01 shield, solder side, transmitter
SH200 2686424Z01 shield, solder side, synthe-
sizer charge pump
SH201 2686423Z01 shield, comp side, synthesizer
SH250 2686425Z01 shield, comp side, VCO tank
circuits
SH251 2686425Z01 shield, solder side, VCOBIC
SH253 2686422Z01 shield, comp side, VCO RX
injection buffer
SH400 2686420Z02 shield, solder side, micropro-
cessor
SH401 2686420Z01 shield, comp side, memory
T41 2580541Z02 transformer, balun
T42 2580541Z02 transformer, balun
U51 5186144B01 receiver system (IFIC), SA616
U52 5109522E10 triple inverter, TC7W04F
U110 0186438Z01 transmitter PA module,
RA07M1317M_VHF
U150 5113818A01 dual op amp, LM2904
U151 2484657R01 be ad, 57R01
U201* 5185963A27 frequency synthesizer, 63A27
U251 5105750U54 VCO /buffer, 50U54
U310 5102478J01 5 V voltage regulator,
TK71750S
U320 5185963A55 adjustable voltage regulator w/
reset, LP2986
U330 5102479J01 3 V voltage regulator,
TK71730S
U403 Not_Placed SRM2B256
U425 5162852A09 LOW PWR OP AMP W/RAIL
TO RAI L
U451 5185130C53 au dio filter (ASFIC.cmp),
30C53
U480 Not_Placed LM2904
U490 5108858K99 audio power amplifier,
TDA8541
U510 5113818A01 dual op amp, LM2904
U511 4802245J54 dual digital NPN, UMG5
U401* 5102226J56 microprocessor,
MC68HC11FL0
U402* 5102463J64 serial EEPROM 16Kx8,
X25128-2.7
Circuit
Ref
Motorola
Part No.
Description
U404* 5102480J01 Flash ROM 128Kx8,
AT49LV001N_70VI
VR110 4813830A82 zener diode, 4.3 V,
MM3Z4V3T1
VR301 4813830A33 zener diode, 20 V,
MMBZ5250B
VR302 4813830A33 zener diode, 20 V,
MMBZ5250B
VR471 4813830A18 zener diode, 6.8 V,
MMBZ5235B
VR472 4813830A09 zener diode, 3.3 V,
MMBZ5226B
VR473 4813830A33 zener diode, 20 V,
MMBZ5250B
VR474 4813830A33 zener diode, 20 V,
MMBZ5250B
VR475 4880140L20 zener diode, 15 V,
MMBZ5245B
Y51 4802245J84 crystal, 44.395 MHz
Y70 9186145B02 ceramic discriminator, 455
kHz, 45B02
Y201* 4880114R06 crystal, 16.8 MHz, 14R06
Y202 Not_Placed 45J68
Circuit
Ref
Motorola
Part No.
Description
C1 NOTPLACED CAP, 150pF
C2 2113740F55 CAP, 150pF
C3 NOTPLACED CAP, 150pF
C4 2113743E20 CAP, 0.1uF
C5 NOTPLACED CAP, 150pF
C6 NOTPLACED CAP, 150pF
C7 NOTPLACED CAP, 150pF
C8 NOTPLACED CAP, 150pF
C21 2113743N50 CAP, 100pF
C22 2113743N50 CAP, 100pF
C23 2113743N50 CAP, 100pF
C24 2113743N50 CAP, 100pF
C25 2113743N50 CAP, 100pF
C26 2113743N50 CAP, 100pF
C27 2113743N50 CAP, 100pF
C28 2113743N50 CAP, 100pF
C29 2113743N50 CAP, 100pF
C30 2113743N50 CAP, 100pF
C31 2113743N50 CAP, 100pF
C32 2113743N50 CAP, 100pF
Circuit
Ref
Motorola
Part No.
Description
D1 4809496B11 QSMG-H799
D2 4809496B11 QSMG-H799
D3 4809496B11 QSMG-H799
D4 4809496B11 QSMG-H799
D5 4809496B11 QSMG-H799
D6 4809496B11 QSMG-H799
D7 4809496B11 QSMG-H799
D8 4809496B11 QSMG-H799
D10 4809496B11 QSMG-H799
J1 0986632Z01 CONN_J
J2 0909059E18 CONN_J
R1 0662057A97 RES, 100K
Q1 4802245J54 UMG5
Q2 4802245J54 UMG5
Q3 4802245J54 UMG5
Q4 4802245J54 UMG5
Q5 4802245J54 UMG5
Q6 4802245J54 UMG5
Q7 4802245J54 UMG5
Q8 4802245J54 UMG5
Q9 4802245J54 UMG5
Q10 4802245J54 UMG5
Q11 4802245J54 UMG5
Q12 4802245J54 UMG5
R1 0662057A97 RES, 100k
R2 0662057A76 RES, 13K
R3 0662057A81 RES, 22K
R4 0662057A88 RES, 43K
R5 0662057B01 RES, 130K
R6 0662057A97 RES, 100K
R7 0662057A76 RES, 13K
R8 0662057A81 RES, 22K
R9 0662057A88 RES, 43K
R10 0662057B01 RES, 130K
R11 0662057A41 RES, 470
R12 0662057A41 RES, 470
R13 0662057A37 RES, 330
R14 0662057A37 RES, 330
R15 0662057A37 RES, 330
R20 0662057A41 RES, 470
Circuit
Ref
Motorola
Part No.
Description
VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-23
6881096C25-B June, 2005
Chapter 7 VHF 136-162 MHz Schematic Diagrams, Overlays,
and Parts Lists (8486769Z04-C)
RX_FE_VHF_R1
CONTROLLER
VCO_VHF_R1
TX_VHF_R1
RX_BE
SYNTH_VHF_R1
V_SF
V_STEER
5V 3V5R
16_8_MHZ
3V
5V
LOCK
MOD_IN
PRESC
SPI_CLK
SPI_DATA_OUT
SYNTH_CS
TRB
VCO_MOD
RSSI
5V 5R
3V5R
USWB+
5V
USWB+
V_SF
V_STEER
5T
3V
5T
PWR_SET
RX_OUT
TX_ENA
TX_INJ
USWB+
5V
BW_SEL
DEMOD
IF_IN
LOCK
MOD_OUT
PWR_SET
RSSI
SPI_CLK
SPI_DATA_OUT
SYNTH_CS
TX_ENA
USWB+
3V
5R
PRESC
RX_INJ
TRB
TX_INJ
VCO_MOD
5R
IF_OUT RX_IN
RX_INJ
5T
16_8_MHZ
3V
5R
5T
5V
BW_SEL
DEMOD
Figure 7-17. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C)
7-24 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
June, 2005 6881096C25-B
700mV (RF)
3.95V (Rx)
2.0V (Rx)
3.38V (Rx)
3.95V (Rx)
0V (Tx)
5.0V (Rx)
485mV (RF)
500mV (RF)
445mV (RF)
705mV (RF)
3.9V (Rx)
125 mV (RF)
128 mV (RF)
0.74V (Rx)
C30
30pF
0.1uF
C99
5.6K
RF BALUN
5
NC
4
6
3
2
1
R25
T41
IO1
1
2
IO2
IO33IO4
4
NC
TP2
1
CR41
HSMS2829
C36
68nH
30pF
C22
1000pF
L33
L3
C41
15pF
68nH
FE_RF_INJ
0
R26
1
C44
20pF
SH1
SHIELD
68pF
R23
22K
L21
NU
C34
R24
750
R51
51
33pF
C8
30pF
6
3
2
1
C7
T42
IF BALUN
5
NC
4
CR1
132
MMBD352
68nH
L4
68nH
L1
1000pF
C20
C3
18pF
C4
1
47pF
C31
36pF
SH40
SHIELD
TP1
1
27pF
C1
FE_5R
L51
150nH
3.3pF
C5
1
3
2
15pF
C43
BFS540
Q21
L31
68nH
C33
C2
43pF
27pF
C29
R22
6.8K
L32
10pF
68nH
L41
68nH
NC
68nH
R20
1%
6.8K
100
L40
1000pF
R21
FE_RF_IN
C26
L22
100nH
C23
1000pF
20pF
C40
C35
33pF
L52
C6
560nH
25
63
14
22pF
UMT1
Q22
68nH
1000pF
C25
C32
L2
C24
68pF
NU
1K
FE_IF_OUT
36pF
R40
C9
NU
C42
RX_IN
C51
82pF
RX_INJ
5R
IF_OUT
Figure 7-18. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z04-C)
VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-25
6881096C25-B June, 2005
5V for 25kHz
RX Back End (Overtone)
0V for 12.5kHz
3.39V
3.05V
0.74V
1.5V
2.1V When -47 dBm @ antenna
9.1pF
1.1%
C53
1
2
3
5V
1
2
3
D51
1
3
2
D52
CR51
C71
IF_DEMOD
TC7W04F
1
7
0.1uF
GND1
3
4
GND2
IN1OUT
2
U52-1
C69
CFWC455E
FL53
12K
0.1uF
C73
R52
1
IN2OUT
4700pF
FL54
CFWC455G
GND1
3
GND2
4
0.1uF
C55
5V
0.1uF
C56
C62
0.1uF
C60
0.1uF
C67
0.1uF
R53
33K
2.4K
Q70
MMBT3904
1
3
2
R60
C80
22pF
1%
C59
2.7pF
R73
1.8K
NC
R74
1.2K
6
2
1.6K
U52-2
TC7W04F
5.1K
R80
R91
PBR941
Q51
1
3
2
C93
3.6pF
C90
0.1uF
NU
C63
L53
120pF
0.1uF
R82
1.2uH
2%
L54
NU
1uH
L81
5V
C52
22pF
4.7K
R57
C66
SH52
SHIELD
1
OUT IN
1
0.1uF
44.395MHz
TSS2_44_395MHZ
Y51
2
GND
4
GND1
3
2
CC1
5
CC2
1
GND1
4
GND2
3
IN
6
OUT
44.85MHz
MXF45
FL51
4
VCC
8
C58
3.9pF
PWR_GND
U52-4
GND
R81
10uF
C91
0.1uF
C65
1K
R75
12K
20K
C57
0.1uF
9180468V04
3
GND
IN1OUT
2
R64
FLTR
FL52
C81
1%
33pF
C70
IF_IN
RFIN
RFIN_DEC
2
5
RSSIOUT
RSSI_FEED
9
6
VCC
130pF
LIMIN
LIMOUT
11
13
LIM_DEC1
12
LIM_DEC2
20
MIXOUT
OSCIN
4
3
OSCOUT
10
QUADIN1AUDIOOUT
8
7
AUDIO_FEED
15
GND
18
IFAMPIN
16
IFAMPOUT
IFAMP_DEC1
19
17
IFAMP_DEC2
14
SA616
U5
1
680
R78
R77
1%
8.2K
R67
5V
IF_BAND_SEL
20K
R76
1%
12K
0.1uF
36pF
C82
5.1K
C68
R54
R66
20K
R63
C72
0.1uF
455KHz
3
21
39K
45B02
Y70
5V
IF_RSSI
SH50
SHIELD
1
R55
330
C64
0.1uF
390
R72
39K
R65
3.3K
R61
100K
R62
TC7W04F
U52-3
35
IF_5
V
C92
0.1uF
51
R90
BW_SE L
5V
IF_IN
RSSI
DEMOD
47pF
C61
47pF
C74
Figure 7-19. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z04-C)
7-26 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
June, 2005 6881096C25-B
C206
C201
NU
RX: 0V
3.0V to 8.0V
4.5V
UNLOCK: 0V
D201
C203
100
NU
NU
TCXO
NU
62pF
0V
0V
Y201
NU
TX: 3V
LOCK: 3V
C202
0.01uF
R206
Crystal
107 mV (RF)
14R06 NU
Reference Oscillator
3V
1SV232
47k
3V
2.7pF
NU
R202
NU
Y202
150k
45J68
220pF
44 mV (RF)
205 mV (RF)
2.4 V (TYP)
D201
1SV232
6
A1
5
A2
4
A3
K1
1
K2
2
K3
3
D220
110K
R230
FN_DATA
1000pF
C231
1200pF
C244
NC
0.1uF
C216
C241
FN_PRESC
1200pF
NU
FN_TRB
C206
FN_5V
C211
0.1uF
FN_V_STEER
NC
NC
FN_MOD
51
R248
FN_V_SF
VCON
1
R206
NU
45J68
Y202
NU
GND
2
OUT
3
VCC
4
10uF
C226
16.8MHz
160K
R247
51
R244
FN_SYNTH_CS
0.1uF
C228
C205
NU
C293
470pF
0
R212
NC
NC
R223
FN_3V
NC
100
1
SHIELD
SH201
1
FN_LOCK
NC
SHIELD
SH200
C227
NC
NC
NC
1000pF
150
R220
100K
1
R246
C245
1uF
TP200
C225
10uF
NC
C223
C224
.01uF
.01uF
.01uF
TP240
1
C213
R205
470pF
C208
100
470pF
NC
NC
C210
C233
0.1uF
C243
2.2uF
4.7uF
NC
C230
5V
5V
C212
2.2uF
GND2GND1
4
OUT3IN
1
C202
NC
16.8MHz
14R06
Y201
VMULT4
VRO
13
25
WARP
23
XTAL1
24
XTAL2
62pF
1%
SFOUT
37
TEST1
38
TEST2
21
VBPASS
47
VCP
15
VMULT1
14
VMULT2
12
VMULT3
11
PREIN
33
PRE_GND
34
PRE_VDD
35
PVREF
18
REFSEL
27
SFBASE
26
SFCAP
30
SFIN
28
4
10
MODIN
41
MODOUT
17
NC1
29
NC2
31
NC3
44
PD_GND
PD_VDD
5
32
CLK
7
DATA
6
DGND
36
DVDD
19
FREFOUT
45
IADAPT
16
INDMULT
43
IOUT
LOCK
AUX2
2
AUX3
3
AUX4
20
AVDD
40
BIAS1
39
BIAS2
42
CCOMP
9
CEX
8
46
ADAPTSW
22
AGND
48
AUX1
1
560nH
L211
63A27
U201
R221
150
C219
C207
0.1uF
C232
470pF
NC
0.1uF
150K
R202
C209
470pF
FN_CLK
6
A1
5
A2
4
A3
1
K1
2
K2
3
K3
D221
.01uF
C221
NC
FN_VCO_MOD
R243
1.8K
C215
2.2uF
C218
2.2uF
C204
470pF
C201
220pF
NC
NC
C220
22pF
.01uF
C222
R245
1.5K
1000pF
FN_16_8
150K
C217
3.7%
2.7pF
R227
C203
5V
3V
PRESC
C214
1000pF
LOCK
V_SF
V_STEER
16_8_MHZ
SPI_DATA_OUT
MOD_IN
SYNTH_CS
SPI_CLK
VCO_MOD
TRB
Figure 7-20. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z04-C)
VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-27
6881096C25-B June, 2005
3.0V to 8.0V
4.5V
RX: 0V
TX: 3V
206 mV (RF)
850 mV (RF)
1200 mV (RF)
1.35 V (Rx)
1.89 V (Rx)
0.1uF0.1uF
C285
L281
C274
33nH
68nH
10pF
C264
L254
10pF
1.0%
C256
750
VCO_VSF
R282
R270
L252
560nH
18
NU
VCO_MOD
L283
C282
C266
1.0%
10pF
9.1pF
47
R253
C286
11pF
L265
330nH
1SV229
D262
680
R284
C268
3.7%
2.7pF
C273
.01uF
C276
5.1pF
R272
9.1K
VCO_TX_INJ
6pF
C254
180
R283
C290
1200pF
C275
51pF
1
3
2
L264
47nH
BFS540
Q280
560nH
30
R263
L262
D251
C272
0.1uF
19
TRB_IN
TX_BASE
16
TX_EMITTER
15
TX_IADJ
1
TX_OUT
10
TX_SWITCH
13
VCC_BUFFERS
14
VCC_LOGIC
1817
GND_LOGIC
PRESC_OUT
12
RX_BASE
5
RX_EMITTER
6
RX_IADJ
2
RX_OUT
8
RX_SWITCH
7
SUPER_FLTR
3
50U54
U251
COLL_RFIN
4
FLIP_IN
20
GND_BUFFERS11GND_FLAG
9
1500pF
C269
C267
1%
36pF
C283
V_SF
C284
1200pF
33
R274
1200pF
V_SF
C265
C255
1%
18pF
L263
15pF
1%
C271
100nH
1
.01uF
SH250
SHIELD
47nH
L282
C257
100nH
L276
36pF
1%
VCO_TRB
VCO_5R
VCO_PRESC
560nH
L251
NC
C270
VCO_RX_INJ
1200pF
36K
VCO_3V
R261
C258
V_SF
VCO_V_STEER
1200pF
1200pF
1200pF
C292
C281
R264
L292
220
68nH
C277
1200pF
R280
6.8K
16pF
1%
C253
300
R273
R275
0
SHIELD
SH253
1
D261
L271
NU
220
R254
560nH
L270
330nH
L255
0
R286
L291
27nH
27pF
1%
C263
C251
8.2K
.01uF
R276
R271
NC
1K
L253
100nH
R281
9.1K
43pF
C291
SH251
SHIELD
1
R262
V_SF
V_STEER
PRESC
6.8K
VCO_MOD
5R
TX_INJ
RX_INJ
3V
TRB
Figure 7-21. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic Diagram (8486769Z04-C)
7-28 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
June, 2005 6881096C25-B
0.9 V (Tx)
7.5 V
0 V (Rx)
0 V (Rx)
7.25 V (Tx)
1.8V (Tx)
7.4 V (Rx)
0.15 V (Tx)
2.5 V (Low)
3.0 V (Hi)
2.4 V (Hi)
1.06 V (Low)
0 V (Rx)
7.3 V (Tx)
2.5 V (Low)
3.0 V (Hi)
1100 mV (RF)
DO NOT MEASURE
1500 mV (RF)
4.9 V (Tx)
820 mV (RF)
1.5 V (Tx)
0 V (Rx)
1.6 V (Tx)
0 V (Rx)
1500pF
R157
5.6K
C100
43.67nH
L132
TAB3
3
TAB4
4
C172
1500pF
M140
ANTENNA_NUT
TAB1
1
TAB2
2
R171
6.8K
R121
150
C102
0.1uF
C107
10pF
L102
100nH
D120
MA4PH261
R111
NU
C132
C131
15pF
10pF
4.7K
R106
1500pF
C106
R152
1%
100K
R101
18
10K
R162
2.7pF
C171
R154
NU
C105
R100
300
100K
1%
RFOUT
3
VDD
2
VGG
RA07M1317M_VHF
U110
GND
5
1
RFIN
4
C113
1500pF
560nH
L101
NC
560nH
L110
0.1uF
C108
NC
C112
1500pF
BFS540
Q100
1
3
2
10pF
C135
R104
51
2.4pF
C133
L130
43.67nH
4.3V
VR110
.01uF
C156
360
R110
43.67nH
L131
1500pF
PA_TX_INJ
C103
C137
200pF
560nH
C122
15pF
U150-2
LM2904
6
5
7
8
4
L120
22pF
C123
20pF
C141
NU
C104
S2
T1
T2
330
R156
J140
G1
G2
S1
1500pF
C120
0.1uF
C170
C121
1500pF
64
1
R103
3.3K
EMB10
Q170
5
23
C111
NU
1500pF
C101
1.5K
R158
57R01
U151
NC
C114
1500pF
C159
PA_PWR_SET
1500pF
L121
47nH
D121
MA4PH261
3
2
C109
0.1uF
Q150
1
16pF
C140
1000pF
C117
100K
1%
R153
C115
1uF
150
R120
C110
0.1uF
MMBT3904
Q171
1
3
2
0.1uF
C116
R107
150
C154
1500pF
PA_RX_OUT
C158
1500pF
C150
1500pF
1500pF
C124
0.1
300
R150
SHIELD
SH100
1
R102
R151
13pF
C134
22
C155
0.1uF
1.2K
R105
1
1500pF
C151
TP150
PA_5T
R155
1%
100K
PA_USWB+
C136
560nH
L100
6.2pF
0.47uF
C153
10K
R524
C152
L103
30nH
L140
1500pF
30.54nH
PA_TX_ENA
8
4
C130
15pF
U150-1
LM2904
2
3
1
PWR_SET
USWB+
0.1uF
C157
TX_INJ
5T
TX_ENA
RX_OUT
Figure 7-22. VHF (136-162 MHz) Transmitter and Power Control Schematic Diagram (8486769Z04-C)
VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-29
6881096C25-B June, 2005
DC_REGULATION
AUDIO
MICROPROCESSOR
ACCESSORY/KEYPAD
CONNECTOR
C506
1000pF
11
C503
1000pF
CNTL_SYNTH_CS
A2
2
B1
4
B2
CNTL_SPI_CLK
SWITCH
S443
1
A1
3
C403
100pF
32
1000pF
C402
CNTL_5V
SW_B+
12
A1
3
A2
2
B1
4
B2
3V
CNTL_MOD_OUT
3V
SWITCH
S441
1
24
CNTL_RSSI
8
BK1005HM471
E500
C501
1uF
17
C505
1000pF
100
7
CNTL_USWB+
R504
CNTL_5R
30
5V
CNTL_SPI_DATA_OUT
SW_B+
31
CNTL_3V
3
21
SW_B+
NC
3VD3_3V
19
TP404
18
1516
1
PC1
2
PC24PC3
8
C408
1000pF
S440
C0
C0
C1
C1
GND7GND1
9
PC0
CNTL_5T
D3_3V
SWITCH
C504
1000pF
RX_ENA
SWB+
TX_ENA
USWB+
VOLUME
C507
1000pF 1000pF
3V
5R
5T
5V
BATT_CHARGE
D3_3V
ON_OFF
RESET
14
C407
R502
100
4
CNTL_DEMOD
100
5R
CNTL_LOCK
2
R505
26
CNTL_PWR_SET
25
22
J460-1
1
6
29
28
VOX
VS_AUDIO_SEL
VS_GAIN_SEL
uP_CLK
CNTL_TX_ENA
LSIO
MOD_OUT
OPT_MIC
OPT_RX_AUD_RETURN
OPT_RX_AUD_SEND_DETECTOR
OPT_RX_AUD_SEND_UNMUTED
OPT_TX_AUD_FLAT_RETURN
OPT_TX_AUD_RETURN
OPT_TX_AUD_SEND
PWR_SET
RESET
SCI
SPI_CLK
SPI_DATA_OUT
SQ_DET
SW_B+
9
16_8_MHZ
3V
5V
ASFIC_CS
BATT_CHARGE
BOOT_ENA
BW_SEL
CH_ACT
DEMOD
EXT_MIC_PTT
F1200
HSIO
1000pF
100pF
C405
C409
1000pF
3
A2
B1
2
4
B2
USWB+
5V
5V
C404
VOX
VS_CS
VS_INT
VS_RAC
uP_CLK
SWITCH
S442
1
A1
OPT_DATA_READY
OPT_ENA
PTT
RESET
RSSI
RX_ENA
SCI
SPI_CLK
SPI_DATA_IN
SPI_DATA_OUT
SQ_DET
SW_B+
SYNTH_CS
TX_ENA
VOLUME
D3_3V
DISPL_COM_DATA_SEL
DISP_ENA
EXT_MIC_PTT
F1200
FREQ_SEL_0
FREQ_SEL_1
FREQ_SEL_2
FREQ_SEL_3
HSIO
KEYPAD_COL
KEYPAD_ROW
LOCK
LSIO
ON_OFF
OPT_BUTTON_1
OPT_BUTTON_2
R501
3V
5V
ASFIC_CS
BACKLIGHT
BATT_DETECT
BOOT_ENA
CH_ACT
R503
100
13
100
CNTL_16_8_MHZ
D3_3V
3V
10
C500
1000pF
23
5T
CNTL_BW_SEL
TP403
TP301
5
SW_B+
20
27
C406
100pF
5T
SPI_CLK
BW_SEL
MOD_OUT
SYNTH_CS
RSSI
SPI_DATA_OUT
5R
5V
USWB+
TX_ENA
DEMOD
3V
16_8_MHZ
LOCK
PWR_SET
Figure 7-23. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z04-C)
7-30 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
June, 2005 6881096C25-B
EEPROM
GREEN LED
RED LED
FLASH
SRAM
VSS
4
WP
3
CS
1
HOLD
7
SCK
6
SI
5
SO
2
VCC
8
D3_3V
U402
X25128-2.7
C422
.01uF
C413
0.1uF
NC
4.7K
R419
NU
R434
40
VSSL87VSSR
XFC
93
48
XIRQ
XTAL
91
94
RESET
12
VDD
39
VDDL
88
VDDR
92
VDDSYN
69
VRH
68
VRL
13
VSS
71
PJ0_CSGP3
72
PJ1_CSGP4
73
PJ2
74
PJ3
75
PJ4
76
PJ5
77
PJ6
78
PJ7
56
PI055PI154PI253PI352PI451PI550PI649PI7
47
PH0_PW1
46
PH1_PW2
45
PH2_PW3
44
PH3_PW4
43
PH4_CSIO
42
PH5_CSGP1
41
PH6_CSGP2
38
PH7_CSPROG
6
PG0_XA13
16
PG1_XA14
20
PG2_XA15
19
PG3_XA16
17
PG4_XA17
18
PG5_XA18
5
PG6_AS
4
PG7_R_W
28
PF1_ADDR127PF2_ADDR226PF3_ADDR325PF4_ADDR424PF5_ADDR523PF6_ADDR622PF7_ADDR729PFO_ADDR0
PE0_AN0
67
PE1_AN1
66
PE2_AN2
65
PE3_AN3
64
PE4_AN4
63
PE5_AN5
62
PE6_AN6
61
PE7_AN7
60
37
PC7_DATA7
97
PD0_RXD
98
PD1_TXD
99
PD2_MISO
100
PD3_MOSI
1
PD4_SCK
2
PD5_SS
PD6_LVIN
3
14
PBO_ADDR8
30
PC0_DATA0
31
PC1_DATA1
32
PC2_DATA2
33
PC3_DATA3
34
PC4_DATA4
35
PC5_DATA5
36
PC6_DATA6
86
PA7_PA1_OC1
10
PB1_ADDR911PB2_ADDR109PB3_ADDR1121PB4_ADDR1215PB5_ADDR138PB6_ADDR147PB7_ADDR15
57
MODB_VSTBY
79
PA0_IC380PA1_IC281PA2_IC1
82
PA3_IC4_OC5_OC1
83
PA4_OC4_OC184PA5_OC3_OC1
PA6_OC2_OC1
85
59
AVDD
70
AVSS
89
ECLK
90
EXTAL
96
IRQ
LVOUT
95
MODA_LIR
58
U401
MC68HC11FL0
200K
1%
R424
C444
.01uF
R417
10K
1
R412
100K
TP402
1000pF
C419
C440
0.1uF
C430
.01uF
R410
10K
820
R411
1
R415
33K
D3_3V
NC
TP405
R431
NU
1
SH400
SHIELD
3
D3_3V
D3_3V
1000pF
C431
Q410
2
641
R413
100K
NC
D3_3V
C416
1000pF
C400
NU
R400
NU
1000pF
C417
.01uF
D3_3V
SHIELD
1
SW_B+
NC
C443
33K
SH401
R414
NC
D414
R430
100K
0
R432
C420
1000pF
.01uF
R421
C412
R420
100K
1%
R443
200K
1%
120
BRPY1204W
D440
10uF
100K
1%
R425
C410
0.1uF
D3_3V
C432
R441
4.7K
4.7K
R440
100K
R418
C401
0.1uF
D7
29
EN_CE
30
EN_OE
32
7
EN_WE
GND
24
NC
6
9
RESET
VCC
8
A9
2
D0
21
D1
22
23
D2
D3
25
D4
26
D5
27
D6
28
A16
10
A2
18
A3
17
16
A4
A5
15
A6
14
A7
13
A8
3
A0
20
A1
19
A10
31
A11
1
A12
12
A13
4
A14
5
A15
11
AT49LV001N_70VI
U404
C433
1000pF
C442
NC
.01uF
0.1uF
C418
2
4
3
R416
20K
SW_B+
Q440-2
NC
100K
R422
Q402
1
3
2
.01uF
C445C446
100K
.01uF
0.1uF
R423
NC
C411
C421
R445
.01uF
0.1uF
4.7K
C414
C415
10K
R446
1000pF
.01uF
1
C441
TP401
5
1
6
R433
100K
Q440-1
1
3
2
RB520S-30
D424
Q403
16
D6
17
D7
18
D8
19
22
OE
VDD
28
VSS
14
WE
27
3
A8
25
A9
24
CS
20
11
D1
D2
12
D3
13
D4
15
D5
2
A13
26
A14
1
A2
8
A3
7
A4
6
A5
5
A6
4
A7
U403
NU
10
A0
A1
9
A10
21
A11
23
A12
220
NC
R442
BACKLIGHT
3V
0.1uF
C447
SW_B+
BATT_DETECT
VS_INT
LOCK
KEYPAD_ROW
VOX
KEYPAD_COL
RSSI
5V
SCI
DISPL_COM_DATA_SEL
SPI_CLK
OPT_BUTTON_2
DISP_ENA
SPI_DATA_IN
SPI_DATA_OUT
D3_3V
HSIO
PTT
FREQ_SEL_3
FREQ_SEL_1
FREQ_SEL_2
ON_OFF
VOLUME
EXT_MIC_PTT
RESET
BOOT_ENA
VS_RAC
OPT_BUTTON_1
FREQ_SEL_0
A(18:0)
OPT_ENA
VS_CS
TX_ENA
LSIO
D(7:0)
ASFIC_CS
SYNTH_CS
RX_ENA
F1200
uP_CLK
A(12)
A(11)
A(10)
A(9)
A(8)
A(7)
A(6)
A(5)
A(4)
A(3)
A(2)
A(1)
A(0)
A(17)
A(18)
A(0)
A(1)
A(2)
A(3)
A(4)
A(5)
A(6)
A(7)
D(7)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
A(16)
A(15)
A(14)
A(13)
A(18)
D(6)
D(5)
D(4)
D(3)
D(7)
D(2)
D(1)
D(0)
A(1)
A(2)
A(5)
A(6)
A(8)
A(11)
A(12)
A(13)
A(8)
A(9)
A(10)
A(11)
A(12)
A(13)
OPT_DATA_READY
SQ_DET
CH_ACT
A(17)
A(16)
A(14)
A(15)
D(0)
D(1)
D(2)
D(3)
D(4)
D(5)
D(6)
D(7)
A(0)
A(3)
A(4)
A(7)
A(9)
A(10)
A(14)
NC
1uF
C425
220K
R406
300K
R405
1.0K
R409
Q427
100K
R408
D3_3V
D3_3V
D3_3V
D3_3V
D3_3V
D3_3V
300K
R401
D425
10K
Q425
R402
Q426
C426
1uF
51K
R404
100K
R407
10K
R403
U425
LMC7101BI
4
3
1
2
5
P13
P13
Figure 7-24. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z04-C)
VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-31
6881096C25-B June, 2005
2.3 V
150 mV RMS (25 kHz) (Rx)
75 mv RMS (12.5 kHz) (Rx)
1.5 V
200 mV RMS
10 mV RMS (Tx)
0 V (Rx)
3 V (Tx)
7.5 V
100k
3.5V (UNSQ)
3.5V (UNSQ)
0.15 V (UNSQ)
3 V (UNSQ)
1.5 V
145 mV RMS
114 mV (RF)
Supply = 7.42
1/2 Supply = 3.22
INTERNAL SPEAKER
R516
R517 0
Not Placed
Not Placed
Not Placed
3.46 V RMS (Rx)(0.5 W@24 OHMS
VHF UHF
R513
R515
ACCESSORY CONNECTOR
DC Level 0.3 - 0.4 V low
MICROPHONE CONNECTOR
Not Placed 0
Not Placed
82pF
3V_A
C456
0.1uF
C499
R478
2.2K
5V_A
1uF
C498
1000pF
C493
470pF
C488
C489
470pF
NU
R516
6.8pF
C512
R513
5V
5V_B
5V_B
R471
2.2K
R483
0.1uF
C452
R481
C462
E453
BK1005HM471
0.1uF
C490
470pF
4
INNEG
INPOS
3
1
MODE
5
OUTNEG
8
OUTPOS2SVR
6
VCC
5
6
3
1
4
TDA8541
U490
7
GND
Q472
2
220pF
C513
R498
100K
0.1uF
C457
R514
R523
10K
.022uF
330
R474
3V_A
C476
150K
L471
390nH
NC
R512
C455
.022uF
0
R491
D471
1uF
C496
C495
1uF
C453
4.7uF
NC
D491
C494
2.2uF
0.1uF
C483
R475
180K
R515
Q490
UMG5
2
641
3
C464
0.1uF
R484
NU
R255
1%
3.9K
5.6K
0.1uF
C477
2
R495
R486
330K
R488
R489
0.1uF
C472
R469
10
R482
BK1005HM471
E452
3V
1
R485
47K
J470-1
680
R451
R472
2
3
1
8
4
R492
24K
C497
LM2904
U510-1
R487
0.1uF
0
2
4
3
100K
R522
1
3
2
NC
Q520-2
IMX1
Q482
R494
330K
4.7uF
C461
C458
0.1uF
Q481
NU
1
3
2
3V_A
C470
0.1uF
150pF
C473
C460
0.1uF
3V
C451
0.1uF
NU
R496
R480
0
BK1005HM471
E451
NC
100K
R476
NU
5V_A
C481
R521
3V_A
20V
MMBZ5250B
VR474
A_MOD_OUT
.022uF
C475
C471
R477
2.2K
C479
2.2uF
220pF
C511
150pF
C474
150pF
1000pF
3V_A
3
NC
C465
C459
J491-3
R463
0.1uF
24K
33
VDDD
11
VDDDAC
45
VDDRC
27
VDDSYN
7
VOX
VR472
17
SQDET
9
SQIN
28
SYN36TXRTN
44
TXSND
10
UIO
1
VDDA
32
VDDCP
46
MICINT
40
MOD
26
NC
8
PLCAP
PLCAP2
25
43
RXRTN
39
RXSND
12
SQCAP
31
GNDD30GNDDO
47
GNDRC
23
GNDSYN
19
HSIO
24
LCAP
18
LSIO
48
MICEXT
29
F1200
15
GCB0
14
GCB1
13
GCB2
35
GCB3
37
GCB4
38
GCB5
3
GNDA
CLK
21
34
CLK168
20
CSX
6
DACG
5
DACR4DACU
22
DATA
2
DISC
U451
30C53
41
AUDIO
42
AUXTN
16
CHACT
1200pF
C467
VR471
5V_B
2
3
1
8
4
C466
U480-1
2
641
3
NU
NC
Q471
R499
24K
R462
C478
150pF
4
5V_A
R520
100K
5V
U480-2
6
5
7
8
Q470
25
6
3
1
4
R470
5V_B
2
2.2K
R497
D470
C519
5V_A
5V_B
1uF
4
S2
S3
6
5
S4
0.1uF
C454
J471
1
M1
2
M2
3
M3
S1
7
C482
NC
C463
0.1uF
C480
0.1uF
680
R473
C492
10uF
R460
24K
IMX1
Q520-1
5
1
6
C484
NU
R479
100K
R464
30K
VR473
MMBZ5250B
20V
5
7
8
4
J491-44
LM2904
U510-2
6
J491-1
1
R517
R511
100K
NU
R490
0.1uF
C518
2
641
3
C514
UMG5
U511
16pF
100K
R493
330K
220K
R519
NC
NC
R518
15V
MMBZ5245B
VR475
3V
5V
OPT_MIC
VS_GAIN_SEL
DEMOD
ASFIC_CS
BATT_CHARGE
OPT_TX_AUD_RETURN
OPT_RX_AUD_SEND_DETECTOR
CH_ACT
VOX
PWR_SET
EXT_MIC_PTT
OPT_TX_AUD_FLAT_RETURN
SW_B+16_8_MHZ
MOD_OUT
RESET
OPT_RX_AUD_RETURN
OPT_RX_AUD_SEND_UNMUTED
OPT_TX_AUD_SEND
SPI_DATA_OUT
LSIO
SPI_CLK
SQ_DET
BW_SEL
F1200
HSIO
VS_AUDIO_SEL
uP_CLK
SCI
BOOT_ENA
Figure 7-25. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C)
7-32 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
June, 2005 6881096C25-B
5 V (Rx)
0 V (Tx)
0 V (Rx)
5 V (Tx)
3.3 V (Rx)
0 V (Tx)
0 V (Rx)
3.3 V (Tx)
5 V
3.3 V
3.3 V
3 V
0 V (OFF)
7.5 V (ON)
0 V (OFF)
7.5 V (ON)
7.5 V (OFF)
0 V (ON)
0 V (OFF)
3.3 V (ON)
7.5 V
0 V (Tx)
0 V (Rx)
5 V (Tx)
5 V (Rx)
C313
.01uF
150pF
C323
U330
TK71730S
BYPASS
4
CTRL
3
GND
2
1
VIN VOUT
5
.01uF
100
R506
C304
10uF
C312
C302
390pF
10uF
C334
F301
3A
5
C333
.01uF
U310
TK71750S
BYPASS
4
CTRL
3
GND
2
1
VIN VOUT
R310
100K
VR302
MMBZ5250B
20V
C316
1200pF
100K
NC
3
1
2
R509
100K
R322
Q493
.01uF
C331
100
R507
Q311
330K
1%
R320
C321
10uF
C315
1200pF
5.1K
R313
20K
R312
5
3
HIGH
TAB16TAB2
7
2
NC
S444
SWITCH
4
1
LOW
100K
R508
.01uF
C322
1
3
C303
33uF
Q494
2
6
4
.018uF
C320
Q313
390pF
C301
C306
.01uF
Q312
D301
D3_3V
R510
330K
1
.018uF
C311
NC
TP302
D3_3V
R321
1%
200K
C314
1200pF
20V
MMBZ5250B
VR301
100K
R311
J301
DATA
NEG
POS
OUTPUT
5
SENSE
6
SHUTDOWN
8
TAP
3
NC
LP2986
U320
ERROR
7
FEEDBACK
2
GND
1
INPUT
4
C305
100pF
D3_3V
SWB+
BATT_CHARGE
.01uF
C310
D3_3V
3V
RESET
VOLUME
ON_OFF
5T
USWB+
RX_ENA
5V
TX_ENA
5R
Figure 7-26. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z04-C)
VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-33
6881096C25-B June, 2005
UP
8
3
F1
5
LEDBL
0
4
DATA
REF STD LIMITED KEYPAD
R3 NOT PLACED
R4 NOT PLACED
R5 NOT PLACED
#
GND
J1
DISPLAY MODULE
CONNECTOR
R15 NOT PLACED
R2 NOT PLACED
C5 NOT PLACED NOT PLACED
C7 NOT PLACED NOT PLACED
D3 NOT PLACED
D4 NOT PLACED
D5 NOT PLACED
D6 NOT PLACED
D7 NOT PLACED
D8 NOT PLACED
R13 NOT PLACED
R14 NOT PLACED
GND
GND
C1 NOT PLACED NOT PLACED
7
1
2
DOW
N
F2
CLK
VDDD
C3 NOT PLACED NOT PLACED
C6 NOT PLACED NOT PLACED
C8 NOT PLACED NOT PLACED
R9 NOT PLACED
R10 NOT PLACED
*
LCD_SEL
6
MAIN BOARD
CONNECTO
R
GND
GND
GND
17
J2-18 18
J2-16
16
J2-1
7
15
R10
130 K
R6
100K
J2-1 5
J2-12 12
10
J1-1 0 G1
J2-1 0
QSMG-H799
D8
R15
33 0
NC
NC
QSMG-H799
D4
D5
QSMG-H799
100K
R1
D1
QSMG-H799
9
22 K
NC
J2
J2-23 23
R3
J2-20 20
J1-3 3
J2-11 11
J2-1 1
QSMG-H799
D6
J2-2 2
J2-22 22
D3
QSMG-H799
J1-7 7
J1-2 2
J2-25
25
J2-26 26
D7
QSMG-H799
C7
150pF
DNF
0.1uF
C4
R1 3
33 0
47 0
R12
22 K
R8 R9
J2-24 24
NC
NC
43 K
J2-4 4
J2-6 6
5
J1-4 4
47 0
J1-5
NC
NC
R1
1
QSMG-H799
D1
1
1
2
3
D1 0
QSMG-H799
1
2
3
SWITCH
S3 2
1
2
3
SWITCH
S3 1
SWITCH
S2 9
1
2
3
SWITCH
S3 0
3
SWITCH
S2 8
1
2
3
2
3
SWITCH
S2 7
1
2
1
2
3
SWITCH
S2 6
1
1
2
3
SWITCH
S2 5
S2 3
1
2
3
SWITCH
S2
4
SWITCH
S2
2
1
2
3
SWITCH
2
3
SWITCH
S2 1
1
2
3
1
2
3
SWITCH
S2 0
1
1
2
3
SWITCH
S1 9
1
2
3
SWITCH
S1 8
8
J2-2 8
SWITCH
S1 7
J2-19 19
J2-8
NC
J1-8 8
NC
DNF
NC
J2-3 3
NC
C8
150pF
DNF
QSMG-H799
D2
NC
Vddd
Vddd
150pF
C6
DNF
J1-6 6
150pF
C1
J2-30
G2
D9
QSMG-H799
NC
J2-7 7
J2-29
G1
NC
NC
NC
NC
13 K
R7
5
R4
43 K
J2-27 27
J2-5
9
330
R14
14
NC
NC
Vddd
J1-9
J2-13
13
J2-1 4
13 K
R2
Vddd
J2-21 21
NC
NC
NC
C2
150pF
R5
NC
C5
DNF
130K
DNF
150pF
J1-1 1 G2
C3
150pF
LEDBL
COL
J1-1 1
DATA
CLK
LCD_SEL
LEDBL
LEDBL
ROW
KEYPAD
9
J2-9
Figure 7-27. VHF (136-162 MHz) Keypad Board Schematic Diagram (8466565A03-B)
7-34 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
June, 2005 6881096C25-B
C410
C412
C413
C418
C419
C421
C422
C430C431
C432
C433
C446
Q440
R410
R417
R419
R424
R425
R431
R442
R443
SH401
1
4
58
U402
22
21
8
7
1
U403
32
17 16
1
U404
C480
C482
C488
C489
E452
R469
R481
R482
R483
R489
R496
4
5
3
2
S444
1
4
58
U480
C112
C113
C117
2
4
3
1
S441
1
2
3
4
5U110
VR110
J140
M140
2C8
C
4
S440
VR475
C400
C402
C403
C404
C406
C407
C408
C409
C460
C500
C503
C504
C505
C506
C507
Q402
Q403
R400
R445
R446
R462
R503
R504
R521
C454
C461
C465
C470
C477
C501
C513
D424
D471
E500
Q472
R414
R463
R470
R471
R472
R473
R480
R513
R514
R522
VR471 VR472
C455
C458
1
37
25
13
U451
C425
D425
Q425
Q426
Q427
R401
R409
C303
C426
R402
R403
R404
R405
R406
R407
R408
U425
43
2
FL54
43
2
FL53
C301
C302
C473
C476
C478
D301
D470
F301
J470
6
4
7
5
2
3
J471
L471
Q171
R171
R524
VR301
VR302
VR473
C305
C306
32
J301
C69
R61
R63
4
58
U52
2
3
Y70
C91
C92
C281
C282
C283
C284
C286
L281
L283
Q280
R280
R281
R282
R283
R286
SH253
C251
C253
C254
C255
C256
C257
C258
C263
C264
C265
C266
C267
C268
C269
D251D261
D262
L251
L252
L253
L254
L255
L262
L263
L264
L265
R253
R254
R261
R262
R263
R264
SH250
C201
C202
C204
C205
C207 C208
C209
C210
C212
C213
C214
C215
C216
C217
C218
C219
C230
C231
C232
C233
C241
C243
C244
C245
C293
L211
R205
R212
R220
R221
R223
R230
R243
R244
R245
R247
R248
SH201
1
37
25
13
U201
C2
C3
C4
C5
C6
C7
C8
C9
C22
C23
C24
C25
C29
C30
C31
C32
C33
C34
C35
C36
CR1
L1
L2
L3
L4
L21
L22
L31
L32
L33
Q21
R22
R24
R25
R26
SH1
C1
2
4
3
1
S442
2
4
3
1
S443
ZMY30000-O
Figure 7-28. VHF (136-162 MHz) Board Component Side View (8486769Z04-C)
VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-35
6881096C25-B June, 2005
C157
C121
C158
C122
C130
C132
C131
C135
C133
C134
C140
C136
C137
C141
D120
D121
L120
L121
L130
L131
L132
L140
R120
R121
R150
R151
U151
C102
C108
C109
C110
C116
C170
C155
C171
C100
C101
C103
C106
C111
C114
C120
C124
C150
C151
C152
C154
C159
C172
C104
C105
C107
C115
C123
C153
C156
L100
L101
L110
L102
L103
Q100
Q150
Q170
4
3
6
1
R107
R157
R156
R106
R103
R105
R100
R102
R101
R104
R110
R111
R152
R153
R154
R155
R158
R162
SH100
8
1
U150
5
4
C493
C499
C472
C483
C481
C490
C471
C494
C474
C479
C475
C495
C496
C498
C484
C492
D491
D440
2
3
4
2
J491
Q470
Q493
Q490
3
4
Q494
3
4
U511
3
4
Q481
Q482
R495
R487
R491
R476
R479
R485
R486
R508
R509
R507
R494
R498
R492
R477
R478
R484
R490
R474
R475
R488
R493
R510
R497
R499
TP150
85
4
1
U490
VR474
C20
C26
C99
Q22
R20
R21
R23
C52 C53
C55
C57
C56
C58
C59
C93
CR51
6
5
4
3
2
FL51
L53
Q51
R52
R53
R54
R55
SH52
C40
C44
C41
C43
C42
C51
CR41
L40
L41
L51
L52
R40
R51
SH40
T41
3
4
6
T42
3
4
6
C81
C82
C80
C60
C62
C63
C64
C65
C66
C67
C68
C72
C90
C71
C70
C73
C74
D51
D52
L54
L81
Q70
R72
R82
R81
R90
R75
R80
R57
R60
R62
R65
R64
R66
R67
R73
R74
R76
R77
R78
R91
SH50
U51
10
20
1
11
Y51
2
3
4
C61
C312
C334
C304
C310
C313
C331
C333
C314
C315
C316
C311
C323
3
2
FL52
Q311
Q312
Q313
3
4
R313
R310
R311
R322
R312
R506
R255
TP404
U310
85
4
U320
U330
C321
C322
C320
R320
R321
C206
C211
C203
D201
R246
R202
R206
TP1
TP2
TP200
TP240
Y201
2
3
4
Y202
C227
C228
C225
C226
C221
C222
C223
C224
C220
D220
D221
R227
SH200
C415
C416
C417
C401
C411
C414
C447
C420
C440
C441
C442
C443
C444
C445
Q410
3
4
R432
R415
R440
R441
R412
R413
R418
R422
R423
R430
R433
R434
R416
R421
R501
R502
R420
R411
SH400
TP401
TP402
TP405
U401
26
51
76
1
C451
C452
C456
C457
C459
C462
C463
C464
C497
C518
C511
C466
C453
C467
C519
C512
C514
D414
E451
E453
Q471
3
4
Q520
R515
R516
R517
R511
R519
R520
R512
R518
R451
R460
R464
TP301
TP403
85
4
1
U510
C405
31
32
30
29
2
28
29
J460
R523
R505
TP302
C291
C290
C272
C274
C285
C271
C273
C270
C275
C277
C292
C276
L276
L270
L271
L292
L282
L291
R275
R276
R284
R273
R270
R271
R272
R274
SH251
U251
10
20
1
11
ZMY30001-O
Figure 7-29. VHF (136-162 MHz) Board Solder Side View (8486769Z04-C)
7-36 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
June, 2005 6881096C25-B
Component Side
Solder Side
D1
D2
D3
D4
D5
D6
D7
D8
S17S18 S19
S20
S21
S22S23S24
S25
S26
S27S28 S29
S30
S31
S32
C1
C2
C3
C4 C5
C6
C7
C8
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
C31
C32
G1
G2
9
J1
28
1
g1
g2
J2
4
3
Q1
4
3
Q2
4
3
Q3
4
3
Q4
4
3
Q5
4
3
Q6
4
3
Q7
4
3
Q8
4
3
Q9
4
3
Q10
4
3
Q11
4
3
Q12
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R20
Figure 7-30. VHF (136-162 MHz) Keypad Board (8466565A03-B)
VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-37
6881096C25-B June, 2005
VHF (136-162 MHz) Radio Parts List (8486769Z04-C)
Circuit
Ref
Motorola
Part No.
Description
C1 2115153H43 CAP, 22pF
C2 2115153H48 CAP, 36pF
C3 2115153H49 CAP, 47pF
C4 2115153H39 CAP, 18pF
C5 2115153H15 CAP, 3.3
C6 2115153H41 CAP, 22pF
C7 2115153H45 CAP, 33pF
C8 2115153H44 CAP, 30pF
C9 Not_Placed C20 2113945A09 CAP, 1000pF
C22 2113945A09 CAP, 1000pF
C23 2113945A09 CAP, 1000pF
C24 Not_Placed C25 2113945A09 CAP, 1000pF
C26 2113945A09 CAP, 1000pF
C29 2115153H27 CAP, 10pF
C30 2115153H44 CAP, 30pF
C31 2115153H46 CAP, 36pF
C32 2115153H53 CAP, 68pF
C33 2115153H43 CAP, 27pF
C34 2115153H53 CAP, 68pF
C35 2115153H45 CAP, 33pF
C36 2115153H44 CAP, 30pF
C40 2115153H40 CAP, 20pF
C41 2115153H37 CAP, 15pF
C42 2115153H46 CAP, 36pF
C43 2115153H37 CAP, 15pF
C44 2115153H40 CAP, 20pF
C51 2113944A38 CAP, 82pF
C52 2115153H41 CAP, 22pF
C53 2115153H26 CAP, 9.1pF
C55 2113946K02 CAP, 100000pF
C56 2113945C31 CAP, 0.10uF
C57 2113946K02 CAP, 100000pF
C58 2113944A15 CAP, 25pF
C59 2113944A11 CAP, 2.7pF
C60 2113946K02 CAP, 100000pF
C61 2113944A36 CAP, 68pF
C62 2113946K02 CAP, 100000pF
C63 2113946K02 CAP, 100000pF
C64 2113946K02 CAP, 100000pF
C65 2113946K02 CAP, 100000pF
C66 2113946K02 CAP, 100000pF
C67 2113946K02 CAP, 100000pF
C68 2113946K02 CAP, 100000pF
C69 2113946K02 CAP, 100000pF
C70 2113944A87 CAP, 130pF
C71 2113945C31 CAP, 0.10uF
C72 2113946K02 CAP, 100000pF
C73 2113945A13 CAP, 4700pF
C74 2113944A33 CAP, 47pF
C80 2115153H41 CAP, 22pF
C81 2115153H45 CAP, 33pF
C82 2115153H46 CAP, 36pF
C90 2113946K02 CAP, 100000pF
C91 2313960D07 CAP, 10uF
C92 2113945C31 CAP, 0.10uF
C93 Not_Placed C99 2113946K02 CAP, 100000pF
C100 2113945A10 CAP, 1500pF
C101 2113945A10 CAP, 1500pF
C102 2113946K02 CAP, 100000pF
C103 2113945A10 CAP, 1500pF
C104 Not_Placed C105 Not_Placed C106 2113945A10 CAP, 1500pF
C107 2113944A25 CAP, 10pF
C108 2113946K02 CAP, 100000pF
C109 2113946K02 CAP, 100000pF
C110 2113946K02 CAP, 100000pF
C111 Not_Placed C112 2113945A10 CAP, 1500pF
C113 2113945A10 CAP, 1500pF
C114 2113945A10 CAP, 1500pF
C115 2313960B01 CAP, 1uF
C116 2113946K02 CAP, 100000pF
C117 2113945L25 CAP, 1000pF
C120 2113945A10 CAP, 1500pF
C121 2113945A10 CAP, 1500pF
C122 2113944C32 CAP, 15pF
C123 2113944C80 CAP, 20pF
C124 2113945A10 CAP, 1500pF
C130 2113944C32 CAP, 15pF
C131 2113944C30 CAP, 10pF
C132 2113944C32 CAP, 15pF
C133 2113944C15 CAP, 2.4pF
C134 2113944C78 CAP, 13pF
C135 2113944C30 CAP, 10pF
C136 2113944C72 CAP, 6.2pF
C137 2113944C89 CAP, 20pF0
C140 2113944C79 CAP, 16pF
C141 2113944C34 CAP, 22pF
C150 2113945A10 CAP, 1500pF
C151 2113945A10 CAP, 1500pF
C152 2113945A10 CAP, 1500pF
C153 2113946L04 CAP, 0.47uF
C154 2113945A10 CAP, 1500pF
C155 2113945C31 CAP, 0.10uF
C156 2113945B02 CAP, 10000pF
C157 2113946K02 CAP, 100000pF
C158 2113945A10 CAP, 1500pF
Circuit
Ref
Motorola
Part N o.
Description
C159 2113945A10 CAP, 1500pF
C170 2113946K02 CAP, 100000pF
C171 2113944A11 CAP, 2.7pF
C172 2113945A10 CAP, 1500pF
C201 2113944C02 CAP, 220pF
C202 2115153H52 CAP, 68pF
C203 2115153H13 CAP, 2.7pF
C204 2113945A05 CAP, 470pF
C205 Not_Placed C206 Not_Placed C207 2113945A05 CAP, 470pF
C208 2113945A05 CAP, 470pF
C209 2113945A05 CAP, 470pF
C210 2113945A05 CAP, 470pF
C211 2113945C31 CAP, 0.10uF
C212 2113946N03 CAP, 2.2uF
C213 2113945B02 CAP, 10000pF
C214 2113945A09 CAP, 1000pF
C215 2113946N03 CAP, 2.2uF
C216 2113945C31 CAP, 0.10uF
C217 2113945A09 CAP, 1000pF
C218 2113946N03 CAP, 2.2uF
C219 2113945C31 CAP, 0.10uF
C220 2113944A29 CAP, 22pF
C221 2113945B02 CAP, 10000pF
C222 2113945B02 CAP, 10000pF
C223 2113945B02 CAP, 10000pF
C224 2113945B02 CAP, 10000pF
C225 2313960D07 CAP, 10uF
C226 2313960D07 CAP, 10uF
C227 2113945A09 CAP, 1000pF
C228 2113945C31 CAP, 0.10uF
C230 2113946N03 CAP, 2.2uF
C231 2113945A09 CAP, 1000pF
C232 2113945C31 CAP, 0.10uF
C233 2313960B30 CAP, 4.7pF
C241 2113945A60 CAP, 1200pF
C243 2113945G91 CAP, 100000pF
C244 2113945L27 CAP, 1200pF
C245 2313960C26 KEMET CAP
C251 2113945L49 CAP, 1000pF
C253 2115153H38 CAP, 16pF
C254 2115153H30 CAP, 6pF
C255 2115153H39 CAP, 18pF
C256 2115153H27 CAP, 10pF
C257 2115153H46 CAP, 36pF
C258 2113945A60 CAP, 1200pF
C263 2115153H43 CAP, 27pF
C264 2115153H27 CAP, 10pF
C265 2115153H37 CAP, 15pF
C266 2115153H27 CAP, 10pF
Circuit
Ref
Motorola
Part No.
Description
C267 2115153H46 CAP, 36pF
C268 2115153H13 CAP, 2.7pF
C269 2113945A10 CAP, 1500pF
C270 2113945A60 CAP, 1200pF
C271 2113945B02 CAP, 10000pF
C272 2113945C31 CAP, 0.10uF
C273 2113945B02 CAP, 10000pF
C274 2113945C31 CAP, 0.10uF
C275 2113945A60 CAP, 1200pF
C276 2113944A18 CAP, 5.1pF
C277 2113945A60 CAP, 1200pF
C281 2113945A60 CAP, 1200pF
C282 2113944A24 CAP, 9.1pF
C283 2113945A60 CAP, 1200pF
C284 2113945A60 CAP, 1200pF
C285 2113945C31 CAP, 0.10uF
C286 2113944A77 CAP, 11pF
C290 2113944A85 CAP, 51pF
C291 2115153H48 CAP, 43pF
C292 2113945A60 CAP, 1200pF
C293 2113945A05 CAP, 470pF
C301 2113945A04 CAP, 390pF
C302 2113945A04 CAP, 390pF
C303 2313960F04 CAP, 33uF
C304 2113945B02 CAP, 10000pF
C305 2113944A40 CAP, 100pF
C306 2113945L49 CAP, 1000pF
C310 2113945B02 CAP, 10000pF
C311 2113743E05 CAP, 0.18uF
C312 2313960D07 CAP, 10uF
C313 2113945B02 CAP, 10000pF
C314 2113945A60 CAP, 1200pF
C315 2113945A60 CAP, 1200pF
C316 2113945A60 CAP, 1200pF
C320 2113743E05 CAP, 0.18uF
C321 2313960D07 CAP, 10uF
C322 2113945B02 CAP, 10000pF
C323 2113944A42 CAP, 150pF
C331 2113945B02 CAP, 10000pF
C333 2113945B02 CAP, 10000pF
C334 2313960D07 CAP, 10uF
C400 Not_Placed C401 2113946K02 CAP, 100000pF
C402 2113945A09 CAP, 1000pF
C403 2113944A40 CAP, 100pF
C404 2113945A09 CAP, 1000pF
C405 2113944A40 CAP, 100pF
C406 2113944A40 CAP, 100pF
C407 2113945A09 CAP, 1000pF
C408 2113945A09 CAP, 1000pF
C409 2113945A09 CAP, 1000pF
Circuit
Ref
Motorola
Part N o.
Description
7-38 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
June, 2005 6881096C25-B
C410 2313960D07 CAP, 10uF
C411 2113946K02 CAP, 100000pF
C412 2113945A09 CAP, 1000pF
C413 2113946K02 CAP, 100000pF
C414 2113946K02 CAP, 100000pF
C415 2113945A09 CAP, 1000pF
C416 2113945A09 CAP, 1000pF
C417 2113945A09 CAP, 1000pF
C418 2113946K02 CAP, 100000pF
C419 2113945A09 CAP, 1000pF
C420 2113945B02 CAP, 10000pF
C421 2113945B02 CAP, 10000pF
C422 2113945B02 CAP, 10000pF
C425 2113946E02 CAP, 1uF
C426 2313960B01 CAP, 1uF
C430 2113946K02 CAP, 100000pF
C431 2113945A09 CAP, 1000pF
C432 2113946K02 CAP, 100000pF
C433 2113945A09 CAP, 1000pF
C440 2113945B02 CAP, 10000pF
C441 2113945B02 CAP, 10000pF
C442 2113945B02 CAP, 10000pF
C443 2113945B02 CAP, 10000pF
C444 2113945B02 CAP, 10000pF
C445 2113945B02 CAP, 10000pF
C446 2113945B02 CAP, 10000pF
C447 2113946K02 CAP, 100000pF
C451 2113946K02 CAP, 100000pF
C452 2113945C31 CAP, 0.10uF
C453 2313960B30 CAP, 4.7pF
C454 2113945C31 CAP, 0.10uF
C455 2113945B04 CAP, 22000pF
C456 2113945C31 CAP, 0.10uF
C457 2113945C31 CAP, 0.10uF
C458 2113945C31 CAP, 0.10uF
C459 2113945C31 CAP, 0.10uF
C460 2113945C31 CAP, 0.10uF
C461 2113946F03 CAP, 4.7uF
C462 2113945C31 CAP, 0.10uF
C463 2113945C31 CAP, 0.10uF
C464 2113945C31 CAP, 0.10uF
C465 2113945A09 CAP, 1000pF
C466 Not_Placed C467 2113945A60 CAP, 1200pF
C470 2113945C31 CAP, 0.10uF
C471 2113946N03 CAP, 2.2uF
C472 2113945C31 CAP, 0.10uF
C473 2113944A42 CAP, 150pF
C474 2113944A42 CAP, 150pF
C475 2113945B04 CAP, 22000pF
C476 2113945B04 CAP, 22000pF
Circuit
Ref
Motorola
Part No.
Description
C477 2113946K02 CAP, 100000pF
C478 2113944A42 CAP, 150pF
C479 2113944A42 CAP, 150pF
C480 2113945C31 CAP, 0.10uF
C481 Not_Placed C482 Not_Placed C483 2113946C02 CAP, 0.22uF
C484 Not_Placed C488 2113945A05 CAP, 470pF
C489 2113945A05 CAP, 470pF
C490 2113945A05 CAP, 470pF
C492 2113928J08 CAP, 10uF
C493 2113945A09 CAP, 1000pF
C494 2113946N03 CAP, 2.2uF
C495 2113946N02 CAP, 1uF
C496 2113946N02 CAP, 1uF
C497 2113945C31 CAP, 0.10uF
C498 2113946N02 CAP, 1uF
C499 2113944A32 CAP, 39pF
C500 2113945A09 CAP, 1000pF
C501 2113946N02 CAP, 1uF
C503 2113945A09 CAP, 1000pF
C504 2113945A09 CAP, 1000pF
C505 2113945A09 CAP, 1000pF
C506 2113945A09 CAP, 1000pF
C507 2113945A09 CAP, 1000pF
C511 2113944C02 CAP, 220pF
C512 2113944A21 CAP, 6.8pF
C513 2113944C02 CAP, 220pF
C514 2113944A79 CAP, 16pF
C518 2113945C31 CAP, 0.10uF
C519 2113946N02 CAP, 1uF
CR1 4813974A19 Diode Schottky
CR41 4815923H01 Diode Schottky
CR51 4813974A19 Diode Schottky
D51 4815047H01 Switching Diode
D52 4815047H01 Switching Diode
D120 4880973Z02 Pin Diode
D121 4880973Z02 Pin Diode
D201 4815072H01 Diode Varactor
D220 4815011H01 Diode Triple
D221 4815011H01 Diode Triple
D251 4813974A01 ISV 228
D261 4813974A01 ISV 228
D262 4885055Y01 Diode Varactor
D301 4815713H01 Diode Schottky
D414 4816064H01 RH29M19 LH
D424 4809924D29 Diode High Voltage
D425 4816064H01 RH29M19 LH
D440 4805729G49 Diode Red/Yel
D470 4809924D29 Diode High Voltage
Circuit
Ref
Motorola
Part No.
Description
D471 4809924D29 Diode High Voltage
D491 Not_Placed E451 2480640Z01 Ferrite Bead
E452 2480640Z01 Fer rite Bead
E453 2480640Z01 Ferrite Bead
E500 2480640Z01 Fer rite Bead
F301 6515076H01 FUSE CHIP SMT
FL51 9186801Z01 OSC,XTAL 44.85MHZ
FL52 9180468V04 4 ELEMENT FLTR
FL53 9180469V05 6 ELEMENT FLTR
FL54 9115811H01 6 ELEMENT FLTR
J140 0986428Z02 RF JACK
J301 0986565Z02 BATTERY CONN
J460 0986615Z02 CONN_J
J470 0985818A02 CONN 2 PIN
J471 0980683Z03 Audio Jack
J491 2815162H01 CONN_P
L1 2414015C09 INDCTR, 68nH
L2 2414015C09 INDCTR, 68nH
L3 2414015C09 INDCTR, 68nH
L4 2414015C09 INDCTR, 68nH
L21 Not_Placed L22 2414017N24 INDCTR, 100nH
L31 2414015C09 INDCTR, 68nH
L32 2414015C09 INDCTR, 68nH
L33 2414015C09 INDCTR, 68nH
L40 2414015C09 INDCTR, 68nH
L41 2414015C09 INDCTR, 68nH
L51 2414017N26 INDCTR, 150nH
L52 2462587V43 INDCTR, 560nH
L53 2113944A41 CAP, 120 pF
L54 2414015A25 INDCTR, 1200nH
L81 2414015A19 INDCTR, 1000nH
L100 2414017K32 INDCTR, 560nH
L101 2414017K32 INDCTR, 560nH
L102 2415429H36 INDCTR, 100nH
L103 2415429H25 INDCTR, 30nH
L110 2414017K32 INDCTR, 560nH
L120 2414017K32 INDCTR, 560nH
L121 2415015H01 INDCTR, 47nH
L130 2479990N01 INDCTR, 43.67nH
L131 2479990N01 INDCTR, 43.67nH
L132 2479990N01 INDCTR, 43.67nH
L140 2479990M01 INDCTR, 30.54nH
L211 2414017K32 INDCTR, 560nH
L251 2414017K32 INDCTR, 560nH
L252 2414017K32 INDCTR, 560nH
L253 2415429H36 INDCTR, 100nH
L254 2414015C05 INDCTR, 33nH
L255 2414017K29 INDCTR, 330nH
L262 2414017K32 INDCTR, 560nH
Circuit
Ref
Motorola
Part No.
Description
L263 2415429H36 INDCTR, 100nH
L264 2414015C07 INDCTR, 47nH
L265 2414017K29 INDCTR, 330nH
L270 2414017K32 INDCTR, 560nH
L271 Not_Placed L276 2414017N24 INDCTR, 100nH
L281 2414017N22 INDCTR, 68nH
L282 2414017N20 INDCTR, 47nH
L283 Not_Placed L291 2414017N17 INDCTR, 27nH
L292 2414017N22 INDCTR, 68nH
L471 2414017K30 INDCTR, 390nH
M140 0286427Z01 Nut, Ante nna
Q21 4815119H01 Transistor
Q22 4815267H01 Transistor
Q51 4815343H01 Transistor
Q70 4815056H01 Transistor
Q100 4815119H01 Transistor
Q150 4815056H01 Transistor
Q170 4809939C34 Transistor
Q171 4815056H01 Transistor
Q280 4815119H01 Transistor
Q311 4815069H02 TP010IT
Q312 4815069H02 TP010IT
Q313 4815066H01 Transistor
Q402 4813973A42 Transistor
Q403 4813973A13 XSTR PNP40V
Q410 4815066H01 Transistor
Q425 4815069H02 TP010IT
Q426 4815069H02 TP010IT
Q427 4815069H02 TP010IT
Q440 4815154H01 Transistor
Q470 4815267H01 Transistor
Q471 4815066H01 Transistor
Q472 4815267H01 Transistor
Q481 Not_Placed Q482 Not_Placed Q490 4815066H01 Transistor
Q493 4815069H02 TP010IT
Q494 4815066H01 Transistor
Q520 4815154H01 Transistor
R20 0613952Z52 RES, 6.8K
R21 0613952Q49 RES, 100
R22 0613952Q93 RES, 6800
R23 0613952Z58 RES, 22K
R24 0613952Q70 RES, 750
R25 0613952Q91 RES, 5600
R26 0613952R66 RES, 0
R40 0613952Q73 RES, 1000
R51 0613952Q42 RES, 51
R52 0613952R03 RES, 12K
Circuit
Ref
Motorola
Part No.
Description
VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C) 7-39
6881096C25-B June, 2005
R53 0613952R13 RES, 33K
R54 0613952Q90 RES, 5100
R55 0613952Q61 RES, 330
R57 0613952Q89 RES, 4700
R60 0613952Q82 RES, 2400
R61 0613952R25 RES, 100K
R62 0613952Q85 RES, 3300
R63 0613952R15 RES, 39K
R64 0613952R08 RES, 20K
R65 0613952R15 RES, 39K
R66 0613952R08 RES, 20K
R67 0613952R08 RES, 20K
R72 0613952Q63 RES, 390
R73 0613952Q79 RES, 1800
R74 0613952Q75 RES, 1200
R75 0613952R03 RES, 12K
R76 0613952Z55 RES, 12K
R77 0613952Z53 RES, 8.2K
R78 0613952Q69 RES, 680
R80 0613952Q90 RES, 5100
R81 0613952Q73 RES, 1000
R82 Not_Placed R90 0613952Q42 RES, 51
R91 0613952Q78 RES, 1600
R100 0613952Q60 RES, 300
R101 0613952Q31 RES, 18
R102 0613952Q60 RES, 300
R103 0613952Q85 RES, 3300
R104 0613952H42 RES, 51
R105 0613952Q75 RES, 1200
R106 0613952Q89 RES, 4700
R107 0613952Q53 RES, 150
R110 0613952Q62 RES, 360
R111 0613952R01 RES, 10K
R120 0613958H53 RES, 150
R121 0613958H53 RES, 150
R150 0680539Z01 RES, 0.1
R151 0613952H33 RES, 22
R152 0613952P01 RES, 100K
R153 0613952P01 RES, 100K
R154 0613952P01 RES, 100K
R155 0613952P01 RES, 100K
R156 0613952Q61 RES, 330
R157 0613952Q91 RES, 5600
R158 0613952Q77 RES, 1500
R162 0613952R01 RES, 10K
R171 0613952Q93 RES, 6800
R202 0613952R29 RES, 150K
R205 0613952Q49 RES, 100
R206 Not_Placed R212 0613958J74 RES, 0
Circuit
Ref
Motorola
Part No.
Description
R220 0613952Q53 RES, 150
R221 0613952Q53 RES, 150
R223 0613952Q49 RES, 100
R227 0613952R29 RES, 150K
R230 0613952R26 RES, 110K
R243 0613952Q79 RES, 1800
R244 0613952Q42 RES, 51
R245 0613952Q77 RES, 1500
R246 0613952R25 RES, 100K
R247 0613952R30 RES, 160K
R248 0613952Q42 RES, 51
R253 0613952Q41 RES, 47
R254 0613952Q57 RES, 220
R255 0613952Z46 RES, 3.9K
R261 0613952R14 RES, 36K
R262 0613952Q93 RES, 6800
R263 0613952Q36 RES, 30
R264 0613952Q57 RES, 220
R270 0613952Q31 RES, 18
R271 0613952Q95 RES, 8200
R272 0613952Q96 RES, 9100 2
R273 0613952Q60 RES, 300
R274 0613952Q37 RES, 33
R275 0613952R66 RES, 0
R276 0613952Q73 RES, 1000
R280 0613952Q93 RES, 6800
R281 0613952Q96 RES, 9100 2
R282 0613952Q70 RES, 750
R283 0613952Q55 RES, 180
R284 0613952Q69 RES, 680
R286 0613952R66 RES, 0
R310 0613952R25 RES, 100K
R311 0613952R25 RES, 100K
R312 0613952R08 RES, 20K
R313 0613952Q90 RES, 5100
R320 0613952Z80 RES, 330K
R321 0613952P30 RES, 200K
R322 0613952R25 RES, 100K
R400 Not_Placed R401 0613952R36 RES, 300K
R402 0613952R01 RES, 10K
R403 0613952R01 RES, 10K
R404 0613952R18 RES, 51K
R405 0613952R36 RES, 300K
R406 0613952R33 RES, 220K
R407 0613952R25 RES, 100K
R408 0613952R25 RES, 100K
R409 0613952Q73 RES, 1000
R410 0613952R01 RES, 10K
R411 0613952Q71 RES, 820
R412 0613952R25 RES, 100K
Circuit
Ref
Motorola
Part N o.
Description
R413 0613952R25 RES, 100K
R414 0613952R13 RES, 33K
R415 0613952R13 RES, 33K
R416 0613952R08 RES, 20K
R417 0613952R01 RES, 10K
R418 0613952R25 RES, 100K
R419 0613952Q89 RES, 4700
R420 0613952P30 RES, 200K
R421 0613952P01 RES, 100K
R422 0613952R25 RES, 100K
R423 0613952R25 RES, 100K
R424 0613952P30 RES, 200K
R425 0613952P01 RES, 100K
R430 0613952R25 RES, 100K
R431 Not_Placed R432 0613952R66 RES, 0
R433 0613952R25 RES, 100K
R434 Not_Placed R440 0613952Q89 RES, 4700
R441 0613952Q89 RES, 4700
R442 0613952H57 RES, 220
R443 0613952H51 CHIP RES 120
R445 0613952Q89 RES, 4700
R446 0613952R01 RES, 10K
R451 0613952R17 RES, 47K
R460 0613952R10 RES, 24K
R462 0613952R10 RES, 24K
R463 0613952R10 RES, 24K
R464 0613952R12 RES, 30K
R469 0613952Q25 RES, 10
R470 0613952Q81 RES, 2200
R471 0613952Q81 RES, 2200
R472 0613952Q69 RES, 680
R473 0613952Q69 RES, 680
R474 0613952H61 RES, 330
R475 0613952R31 RES, 180K
R476 0613952R25 RES, 100K
R477 0613952Q81 RES, 2200
R478 0613952Q81 RES, 2200
R479 0613952R25 RES, 100K
R480 0613952G67 RES, 0
R481 Not_Placed R482 Not_Placed R483 Not_Placed R484 Not_Placed R485 Not_Placed R486 Not_Placed R487 0613952R66 RES, 0
R488 0613952R37 RES, 330K
R489 Not_Placed R490 Not_Placed -
Circuit
Ref
Motorola
Part No.
Description
R491 0613952R66 RES, 0
R492 0613952R10 RES, 24K
R493 0613952R37 RES, 330K
R494 0613952Z80 RES, 330K
R495 0613952Q91 RES, 5600
R496 Not_Placed R497 Not_Placed R498 Not_Placed R499 Not_Placed R501 0613952Q49 RES, 100
R502 0613952Q49 RES, 100
R503 0613952Q49 RES, 100
R504 0613952Q49 RES, 100
R505 0613952Q49 RES, 100
R506 0613952Q49 RES, 100
R507 0613952Q49 RES, 100
R508 0613952R25 RES, 100K
R509 0613952R25 RES, 100K
R510 0613952R37 RES, 330K
R511 0613952R25 RES, 100K
R512 0613952R29 RES, 150K
R513 Not_Placed R514 0613952R25 RES, 100K
R515 Not_Placed R516 Not_Placed R517 0613952R66 RES, 0
R518 0613952R33 RES, 220K
R519 0613952R25 RES, 100K
R520 0613952R25 RES, 100K
R521 Not_Placed R522 0613952R25 RES, 100K
R523 0613952R01 RES, 10K
R524 0613952R01 RES, 10K
S440 4080710Z25 Switch
4080710Z24 Switch
S441 4070354A01 Switch
S442 4070354A01 Switch
S443 4070354A01 Switch
S444 1880619Z04 Potentiometer
SH1 2686421Z02 Shield
SH40 2686419Z02 Shield
SH50 2686423Z02 Shield
SH52 2686424Z02 Shield
SH100 2686418Z02 Shield
SH200 2686424Z02 Shield
SH201 2686423Z02 Shield
SH250 2686425Z02 Shield
SH251 2686425Z02 Shield
SH253 2686422Z02 Shield
SH400 2686420Z04 Shield
SH401 2686420Z03 Shield
Circuit
Ref
Motorola
Part N o.
Description
7-40 VHF 136-162 MHz Schematic Diagrams, Overlays, and Parts Lists (8486769Z04-C)
June, 2005 6881096C25-B
VHF (136-162 MHz) Keypad Board Parts List
(8466565A03-B)
T41 2515121H01 Balun Transformer
T42 2515121H01 Balun Transformer
U51 5115281H01 SA616
U52 5115070H01 TC7W04F U
U110 0178034A01 PA Module
U150 5114005A01 LM2904DR
U151 2415954H01 INDCTR Bead
U201 5185177Y01 AT25016
U251 5105750U56 VCO Buffer IC
U310 5115746H01 Voltage Regulator
U320 5115679H01 Voltage Regulator
U330 5115745H01 Voltage Regulator
U401 5185143E03 68HC11FLO
U402 5115033H01 EEPROM IC
U403 Not_Placed U404 5115032H01 Flash 128K
U425 5115697H01 OP AMP
U451 5115062H01 IC A SFIC_CMP_R1
U480 Not_Placed U490 9115811H03 Audio Amplifier
U510 5114005A01 LM2904DR
U511 4815066H01 Transistor
VR110 4813977A59 Diode Zener
VR301 4813977M29 Diode 20V
VR302 4813977M29 Diode 20V
VR471 4813977M14 Diode 6.8V
VR472 4813977M05 Diode 3.3V
VR473 4813977M29 Diode 20V
VR474 4813977M29 Diode 20V
VR475 4813977M24 Diode Zener
Y51 4802245J84 XTAL 44.395MHz
Y70 9186145B02 CDBCA455CX36-TC
Y201 4880114R06 Crystal 16.8MHZ
Y202 Not_Placed -
Circuit
Ref
Motorola
Part No.
Description
C1 Not_Placed C1 Not_Placed C2 2113944C47 CAP, 15pF
C3 Not_Placed C4 2113945C31 CAP, 0.10uF
C5 Not_Placed C6 Not_Placed C7 Not_Placed C8 Not_Placed C21 Not_Placed -
2113944A40 CAP, 100pF (Full)
Circuit
Ref
Motorola
Part No.
Description
C22 Not_Placed -
2113944A40 CAP, 100pF (Full)
C23 Not_Placed -
2113944A40 CAP, 100pF (Full)
C24 Not_Placed -
2113944A40 CAP, 100pF (Full)
C25 Not_Placed -
2113944A40 CAP, 100pF (Full)
C26 Not_Placed -
2113944A40 CAP, 100pF (Full)
C27 Not_Placed -
2113944A40 CAP, 100pF (Full)
C28 Not_Placed -
2113944A40 CAP, 100pF (Full)
C29 Not_Placed -
2113944A40 CAP, 100pF (Full)
C30 Not_Placed -
2113944A40 CAP, 100pF (Full)
C31 Not_Placed -
2113944A40 CAP, 100pF (Full)
C32 Not_Placed -
2113944A40 CAP, 100pF (Full)
D1 4809496B11 LED CHIP YEL-GRN
D2 4809496B11 LED CHIP YEL-GRN
D3 Not_Placed -
4809496B11 LED CHIP YEL-GRN (Full)
D4 Not_Placed -
4809496B11 LED CHIP YEL-GRN (Full)
D5 Not_Placed -
4809496B11 LED CHIP YEL-GRN (Full)
D6 Not_Placed -
4809496B11 LED CHIP YEL-GRN (Full)
D7 Not_Placed -
4809496B11 LED CHIP YEL-GRN (Full)
D8 Not_Placed -
4809496B11 LED CHIP YEL-GRN (Full)
J1 0986632Z02 CONN_J
J2 0909059E19 CONN_J
Q1 Not_Placed -
4815066H01 Transistor (Full)
Q2 Not_Placed -
4815066H01 Transistor (Full)
Q3 Not_Placed -
4815066H01 Transistor (Full)
Q4 Not_Placed -
4815066H01 Transistor (Full)
Q5 Not_Placed -
4815066H01 Transistor (Full)
Q6 Not_Placed -
4815066H01 Transistor (Full)
Q7 Not_Placed -
Circuit
Ref
Motorola
Part No.
Description
4815066H01 Transistor (full)
Q8 Not_Placed -
4815066H01 Transistor (Full)
Q9 Not_Placed -
4815066H01 Transistor (Full)
Q10 Not_Placed -
4815066H01 Transistor (Full)
Q11 Not_Placed -
4815066H01 Transistor (Full)
Q12 Not_Placed -
4815066H01 Transistor (Full)
R1 0613952J25 CHIP RES 100K
R2 Not_Placed -
0613952J04 CHIP RES 13K (Full)
R3 Not_Placed -
0613952J09 RES, 22K (Full)
R4 Not_Placed -
0613952J16 CHIP RES 43K (Full)
R5 Not_Placed -
0613952J28 CHIP RES 130K (Full)
R6 0613952J25 CHIP RES 100K
R7 0613952J04 CHIP RES 13K
R8 0613952J09 RES, 22K
R9 Not_Placed -
0613952J16 CHIP RES 43K (Full)
R10 Not_Placed -
0613952J28 CHIP RES 130K (Full)
R11 0613952H65 CHIP RES 470
R12 0613952H65 CHIP RES 470
R13 Not_Placed -
0613952H61 RES, 330 (Full)
R14 Not_Placed -
0613952H61 RES, 330 (Full)
R15 Not_Placed -
0613952H61 RES, 330 (Full)
R20 Not_Placed -
0613952H65 CHIP RES 470 (Full)
Circuit
Ref
Motorola
Part No.
Description
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