Motorola ASTRO XTS 5000 Detailed Service Manual

Download

Page 1

ASTRO

XTS™ 5000

VHF UHF Range 1 UHF Range 2 700 — 800 MHz Digital Portable Radios

Detailed Service Manual

Page 2

Page 3

Title Page

ASTRO® XTS™ 5000

VHF/UHF Range 1/Range 2/700–800 MHz

Digital Portable Radios

Detailed Service Manual

Motorola, Inc. 8000 West Sunrise Boulevard Fort Lauderdale, Florida 33322

6881094C31-D

Page 4

Foreword

The information contained in this manual relates to all ASTRO® XTS™ 5000 digital portable radios, unless otherwise specified. This manual provides sufficient information to enable qualified service shop technicians to troubleshoot and repair an ASTRO XTS 5000 digital portable radio to the component level.

For details on the operation of the radio or level 1 or 2 maintenance procedures, refer to the applicable manuals, which are available separately. A list of related publications is provided in the section, “Related Publications,” on page xii.

Product Safety and RF Exposure Compliance

Before using this product, read the operating instructions

a u t i o

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 number 6881095C98) 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>

for safe usage contained in the Product Safety and RF Exposure booklet enclosed with your radio.

ATTENTION!

Manual Revisions

Changes which occur after this manual is printed are described in FMRs (Florida Manual Revisions). These FMRs provide complete replacement pages for all added, changed, and deleted items, including pertinent parts list data, schematics, and component layout diagrams. To obtain FMRs, contact the Customer Care and Services Division (refer to “Appendix A Replacement Parts Ordering”).

Computer Software Copyrights

The Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconductor memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted 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 operation 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.

Trademarks

MOTOROLA, the Stylized M logo, and ASTRO are registered in the US Patent & Trademark Office. All other product or service names are the property of their respective owners.

Page 5

Table of Contents iii

Table of Contents

Foreword.........................................................................................................ii

Product Safety and RF Exposure Compliance ............................................................................................ii

Manual Revisions ........................................................................................................................................ ii

Computer Software Copyrights ...................................................................................................................ii

Document Copyrights ..................................................................................................................................ii

Disclaimer.................................................................................................................................................... ii

Trademarks ................................................................................................................................................. ii

List of Figures ..............................................................................................vii

List of Tables .................................................................................................xi

Commercial Warranty .................................................................................xiii

Limited Warranty ...................................................................................................................................... xiii

Model Numbering, Charts, and Specifications........................................xvii

Portable Radio Model Numbering System .............................................................................................. xvii

ASTRO XTS 5000 VHF Model Chart ..................................................................................................... xviii

ASTRO XTS 5000 R (Ruggedized) VHF Model Chart ............................................................................. xix

ASTRO XTS 5000 UHF Range 1 Model Chart..........................................................................................xx

ASTRO XTS 5000 R (Ruggedized) UHF Range 1 Model Chart .............................................................. xxi

ASTRO XTS 5000 UHF Range 2 Model Chart........................................................................................ xxii

ASTRO XTS 5000 R (Ruggedized) UHF Range 2 Model Chart ............................................................ xxiii

ASTRO XTS 5000 700–800 MHz Model Chart ...................................................................................... xxiv

ASTRO XTS 5000 R (Ruggedized) 700–800 MHz Model Chart ............................................................. xxv

Specifications for VHF Radios................................................................................................................ xxvi

Specifications for UHF Range 1 Radios ................................................................................................ xxvii

Specifications for UHF Range 2 Radios ................................................................................................xxviii

Specifications for 700–800 MHz Radios................................................................................................. xxix

Chapter 1 Introduction ......................................................................... 1-1

1.1 General .......................................................................................................................................... 1-1

1.2 Notations Used in This Manual...................................................................................................... 1-2

Chapter 2 Radio Power ........................................................................ 2-1

2.1 General .......................................................................................................................................... 2-1

2.2 DC Power Routing—Transceiver Board ........................................................................................ 2-3

2.3 DC Power Routing—VOCON Board.............................................................................................. 2-3

6881094C31-D July 21, 2004

Page 6

iv Table of Contents

Chapter 3 Theory of Operation............................................................ 3-1

3.1 Transceiver Board.......................................................................................................................... 3-2

3.2 VOCON Board ............................................................................................................................. 3-16

3.3 Encryption Module ....................................................................................................................... 3-34

Chapter 4 Troubleshooting Procedures ............................................. 4-1

4.1 Handling Precautions..................................................................................................................... 4-1

4.2 Recommended Service Tools........................................................................................................ 4-2

4.3 Voltage Measurement and Signal Tracing..................................................................................... 4-3

4.4 Standard Bias Table ...................................................................................................................... 4-4

4.5 Power-Up Self-Check Errors.......................................................................................................... 4-5

4.6 Power-Up Self-Check Diagnostics and Repair (Not for Field Use) ................................................ 4-6

Chapter 5 Troubleshooting Charts ..................................................... 5-1

5.1 List of Troubleshooting Charts ....................................................................................................... 5-1

5.2 Main Troubleshooting Flowchart.................................................................................................... 5-2

5.3 Power-Up Failure ........................................................................................................................... 5-3

5.4 DC Supply Failure.......................................................................................................................... 5-5

5.5 Display Failure (NNTN4563, NNTN4819, & NNTN4717 VOCON Kits) ......................................... 5-8

5.6 Display Failure (NTN9564) .......................................................................................................... 5-11

5.7 Volume Set Error ......................................................................................................................... 5-14

5.8 Channel/Zone Select Error .......................................................................................................... 5-15

5.9 Button Test................................................................................................................................... 5-16

5.10 Top/Side Button Test ................................................................................................................... 5-17

5.11 VCO TX/RX Unlock...................................................................................................................... 5-18

5.12 VOCON TX Audio—Page 1 ......................................................................................................... 5-19

5.13 VOCON RX Audio........................................................................................................................ 5-21

5.14 RX RF .......................................................................................................................................... 5-23

5.15 TX RF (VHF and UHF Range 2) .................................................................................................. 5-28

5.16 TX RF (UHF R1/700-800 MHz).................................................................................................... 5-31

5.17 Keyload Failure ............................................................................................................................ 5-34

5.18 Secure Hardware Failure ............................................................................................................. 5-35

Chapter 6 Troubleshooting Waveforms ............................................. 6-1

6.1 List of Waveforms .......................................................................................................................... 6-1

6.2 13 MHz Clock................................................................................................................................. 6-2

6.3 16.8 MHz Buffer Input and Output ................................................................................................. 6-3

6.4 32.768 kHz Clock Outputs ............................................................................................................. 6-4

6.5 SPI B Data ..................................................................................................................................... 6-5

6.6 Receive Serial Audio Port (SAP) ................................................................................................... 6-6

6.7 Receive Baseband Interface Port (RX BBP).................................................................................. 6-7

6.8 Transmit Baseband Interface Port (TX BBP) ................................................................................. 6-8

Chapter 7 Troubleshooting Tables ..................................................... 7-1

7.1 List of Board and IC Signals .......................................................................................................... 7-1

July 21, 2004 6881094C31-D

Page 7

Table of Contents v

Chapter 8 Schematics, Board Overlays, and Parts Lists.................. 8-1

8.1 List of Transceiver Schematics and Board Overlays ..................................................................... 8-1

8.2 List of VOCON Schematics and Board Overlays........................................................................... 8-1

8.3 Transceiver (RF) Boards ............................................................................................................... 8-3

8.4 VOCON Boards ........................................................................................................................... 8-96

6881094C31-D July 21, 2004

Page 8

vi Table of Contents

Notes

July 21, 2004 6881094C31-D

Page 9

List of Figures vii

List of Figures

Figure 2-1. DC Power Distribution—UHF Range 1 and 700–800 MHz Radios ...................................... 2-2

Figure 2-2. DC Power Distribution—VHF and Range 2 Radios .............................................................. 2-2

Figure 3-1. XTS 5000 Overall Block Diagram ......................................................................................... 3-2

Figure 3-2. Transceiver (VHF) Block Diagram (Power and Control Omitted) ......................................... 3-2

Figure 3-3. Transceiver (UHF Range 1, UHF Range 2 and 700–800 MHz) Block Diagram

(Power and Control Omitted)3-3

Figure 3-4. Receiver Block Diagram ....................................................................................................... 3-5

Figure 3-5. Abacus III (AD9874) Functional Block Diagram (from data sheet) ....................................... 3-7

Figure 3-6. Transmitter Block Diagram ................................................................................................... 3-9

Figure 3-7. VOCON Board Interconnections.........................................................................................3-16

Figure 3-8. Patriot EIM and Memory Block Diagram............................................................................. 3-21

Figure 3-9. Universal (Side) Connector................................................................................................. 3-28

Figure 3-10. VOCON Board Connector—J101 ....................................................................................... 3-28

Figure 3-11. Control Top Flex.................................................................................................................. 3-31

Figure 3-12. VOCON Transmit Audio Path ............................................................................................. 3-32

Figure 3-13. VOCON Receive Audio Path .............................................................................................. 3-33

Figure 6-1. 13 MHz Clock Waveform ...................................................................................................... 6-2

Figure 6-2. 16.8 MHz Buffer Input and Output Waveforms ..................................................................... 6-3

Figure 6-3. 32.768 kHz Clock Outputs Waveforms................................................................................. 6-4

Figure 6-4. SPI B Data Waveforms ......................................................................................................... 6-5

Figure 6-5. Receive Serial Audio Port (SAP) Waveforms ....................................................................... 6-6

Figure 6-6. Receive Baseband Interface Port (RX BBP) Waveforms ..................................................... 6-7

Figure 6-7. Transmit Baseband Interface Port (TX BBP) Waveforms ..................................................... 6-8

Figure 8-1. NUF3577 700–800 MHz Transceiver (RF) Board Overall Circuit Schematic ....................... 8-3

Figure 8-2. NUF3577 700–800 MHz Antenna Switch and Harmonic Filter Circuits................................ 8-4

Figure 8-3. NUF3577 700–800 MHz Receiver Front End Circuit ............................................................ 8-5

Figure 8-4. NUF3577 700–800 MHz Receiver Back End Circuit ............................................................ 8-6

Figure 8-5. NUF3577 700–800 MHz Transmitter and Automatic Level Control Circuits......................... 8-7

Figure 8-6. NUF3577 700–800 MHz Frequency Generation Unit (Synthesizer) Circuit—1 of 2 ............. 8-8

Figure 8-7. NUF3577 700–800 MHz Frequency Generation Unit (VCO) Circuit—2 of 2 ........................ 8-9

Figure 8-8. NUF3577 700–800 MHz Transceiver (RF) Board Layout—Side 1 ..................................... 8-10

Figure 8-9. NUF3577 700–800 MHz Transceiver (RF) Board Layout—Side 2 ..................................... 8-11

Figure 8-10. NUF3577C 700–800 MHz Transceiver (RF) Board Overall Circuit Schematic................... 8-17

Figure 8-11. NUF3577C 700–800 MHz Antenna Switch and Harmonic Filter Circuits ........................... 8-18

Figure 8-12. NUF3577C 700–800 MHz Receiver Front End Circuit ....................................................... 8-19

Figure 8-13. NUF3577C 700–800 MHz Receiver Back End Circuit........................................................ 8-20

Figure 8-14. NUF3577C 700–800 MHz Transmitter and Automatic Level Control Circuits .................... 8-21

Figure 8-15. NUF3577C 700–800 MHz Frequency Generation Unit (Synthesizer) Circuit ..................... 8-22

Figure 8-16. NUF3577C 700–800 MHz Frequency Generation Unit (VCO) Circuit................................ 8-23

Figure 8-17. NUF3577C 700–800 MHz Transceiver (RF) Board Layout—Side 1 .................................. 8-24

Figure 8-18. NUF3577C 700–800 MHz Transceiver (RF) Board Layout—Side 2 .................................. 8-25

Figure 8-19. NLD8910B VHF Transceiver (RF) Board Overall Circuit Schematic .................................. 8-31

Figure 8-20. NLD8910B VHF DC Power Circuits.................................................................................... 8-32

Figure 8-21. NLD8910B VHF Antenna Switch and Harmonic Filter Circuits........................................... 8-33

Figure 8-22. NLD8910B VHF Receiver Front End Circuit ....................................................................... 8-34

Figure 8-23. NLD8910B VHF Receiver Amplifier and Filter Circuit......................................................... 8-35

Figure 8-24. NLD8910B VHF Mixer and IF Filter Circuits ....................................................................... 8-36

Figure 8-25. NLD8910B VHF Receiver Back End Circuit ....................................................................... 8-37

6881094C31-D July 21, 2004

Page 10

viii List of Figures

Figure 8-26. NLD8910B VHF Transmitter and Automatic Level Control Circuits ................................... 8-38

Figure 8-27. NLD8910B VHF Frequency Generation Unit (Synthesizer) Circuit..................................... 8-39

Figure 8-28. NLD8910B VHF Frequency Generation Unit (VCO) Circuit................................................ 8-40

Figure 8-29. NLD8910B VHF Transceiver (RF) Board Layout—Side 1 .................................................. 8-41

Figure 8-30. NLD8910B VHF Transceiver (RF) Board Layout—Side 2 .................................................. 8-42

Figure 8-31. NLE4272A UHF Range 1 Transceiver (RF) Board Overall Circuit Schematic.................... 8-48

Figure 8-32. NLE4272A UHF Range 1 Antenna Switch and Harmonic Filter Circuits ............................ 8-49

Figure 8-33. NLE4272A UHF Range 1 Receiver Front End (RX_FE) Circuit.......................................... 8-50

Figure 8-34. NLE4272A UHF Range 1 Receiver Back End (RX_BE) Circuit.......................................... 8-51

Figure 8-35. NLE4272A UHF Range 1 Transmitter Power Amplifier and Automatic Level Control (TX_ALC)

Circuit8-52

Figure 8-36. NLE4272A UHF Range 1 Frequency Generation Unit (Synthesizer) Circuit ...................... 8-53

Figure 8-37. NLE4272A UHF Range 1 Frequency Generation Unit (VCO) Circuit ................................ 8-54

Figure 8-38. NLE4272A UHF Range 1 Transceiver (RF) Board Layout—Side 1.................................... 8-55

Figure 8-39. NLE4272A UHF Range 1 Transceiver (RF) Board Layout—Side 2.................................... 8-56

Figure 8-40. NLE4278A UHF Range 1 Transceiver (RF) Board Overall Circuit Schematic.................... 8-64

Figure 8-41. NLE4278A UHF Range 1 Antenna Switch and Harmonic Filter Circuits ............................ 8-65

Figure 8-42. NLE4278A UHF Range 1 Receiver Front End Circuit......................................................... 8-66

Figure 8-43. NLE4278A UHF Range 1 Receiver Back End Circuit......................................................... 8-67

Figure 8-44. NLE4278A UHF Range 1 Transmitter Power Amplifier and Automatic Level Control Circuit. 8-

Figure 8-45. NLE4278A UHF Range 1 Frequency Unit (Synthesizer) Circuit ......................................... 8-69

Figure 8-46. NLE4278A UHF Range 1 Frequency Generation Unit (VCO) Circuit ................................. 8-70

Figure 8-47. NLE4278A UHF Range 1 Transceiver (RF) Board Layout—Side 1.................................... 8-71

Figure 8-48. NLE4278A UHF Range 1 Transceiver (RF) Board Layout—Side 2.................................... 8-72

Figure 8-49. NLE 4273A UHF Range 2 Tranceiver (RF) Board Overall Circuit Schematic..................... 8-79

Figure 8-50. NLE 4273A UHF Range 2 D/C Power Circuit Schematic ................................................... 8-80

Figure 8-51. NLE 4273A UHF Range 2 Antenna Switch and Harmonic Filter Circuit Schematic ........... 8-81

Figure 8-52. NLE 4273A UHF Range 2 Receiver Front End Circuit Schematic...................................... 8-82

Figure 8-53. NLE 4273A UHF Range 2 Receiver Back End Circuit Schematic ...................................... 8-83

Figure 8-54. NLE 4273A UHF Range 2 Receiver Amplifier and Filter Circuit Schematic........................ 8-84

Figure 8-55. NLE 4273A UHF Range 2 Mixer and IF FIlter Circuit Schematic........................................ 8-85

Figure 8-56. NLE 4273A UHF Range 2 Transmitter and Automatic Level Control Circuit Schematic .... 8-86

Figure 8-57. NLE 4273A UHF Range 2 Frequency Generation Unit (Synthesizer) Circuit Schematic ... 8-87

Figure 8-58. NLE 4273A UHF Range 2 Frequency Generation Unit (VCO) Circuit Schematic .............. 8-88

Figure 8-59. NLE 4273A UHF Range 2 Transceiver Board Layout (Side 1) Schematic ......................... 8-89

Figure 8-60. NLE 4273A UHF Range 2 Transceiver (RF) Board Layout (Side 2) Schematic ................. 8-90

Figure 8-61. NTN9564B VOCON Board Overall Schematic—1 of 2....................................................... 8-96

Figure 8-62. NTN9564B VOCON Board Overall Schematic—2 of 2....................................................... 8-97

Figure 8-63. NTN9564B VOCON Universal Connector Circuit ............................................................... 8-98

Figure 8-64. NTN9564B VOCON Flipper Circuit ..................................................................................... 8-99

Figure 8-65. NTN9564B VOCON Controller and Memory Circuits—1 of 2 ........................................... 8-100

Figure 8-66. NTN9564B VOCON Controller and Memory Circuits—2 of 2 ........................................... 8-101

Figure 8-67. NTN9564B VOCON Audio and DC Circuits...................................................................... 8-102

Figure 8-68. NTN9564B VOCON Board Layout—Side 1 ...................................................................... 8-103

Figure 8-69. NTN9564B VOCON Board Layout—Side 2 ...................................................................... 8-104

Figure 8-70. NTN9564C VOCON Board Overall Schematic—1 of 2..................................................... 8-110

Figure 8-71. NTN9564C VOCON Board Overall Schematic—2 of 2..................................................... 8-111

Figure 8-72. NTN9564C VOCON Universal Connector Circuit ............................................................. 8-112

Figure 8-73. NTN9564C VOCON Flipper Circuit................................................................................... 8-113

Figure 8-74. NTN9564C VOCON Controller and Memory Circuits—1 of 2 ........................................... 8-114

Figure 8-75. NTN9564C VOCON Controller and Memory Circuits—2 of 2 ........................................... 8-115

Figure 8-76. NTN9564C VOCON Audio and DC Circuits...................................................................... 8-116

Figure 8-77. NTN9564C VOCON Board Layout—Side 1...................................................................... 8-117

July 21, 2004 6881094C31-D

Page 11

List of Figures ix

Figure 8-78. NTN9564C VOCON Board Layout—Side 2...................................................................... 8-118

Figure 8-79. NNTN4563A/B VOCON Board Overall Schematic—1 of 2............................................... 8-124

Figure 8-80. NNTN4563A/B VOCON Board Overall Schematic—2 of 2............................................... 8-125

Figure 8-81. NNTN4563A/B VOCON Universal Connector Circuit ....................................................... 8-126

Figure 8-82. NNTN4563A/B VOCON Flipper Circuit............................................................................. 8-127

Figure 8-83. NNTN4563A/B VOCON Controller and Memory Circuits—1 of 2 ..................................... 8-128

Figure 8-84. NNTN4563A/B VOCON Controller and Memory Circuits—2 of 2 ..................................... 8-129

Figure 8-85. NNTN4563A/B VOCON Audio and DC Circuits................................................................ 8-130

Figure 8-86. NNTN4563A/B VOCON Board Layout—Side 1................................................................ 8-131

Figure 8-87. NNTN4563A/B VOCON Board Layout—Side 2................................................................ 8-132

Figure 8-88. NNTN4819A VOCON Board Overall Schematic—Sheet 1 of 2........................................ 8-139

Figure 8-89. NNTN4819A VOCON Board Overall Schematic—Sheet 2 of 2........................................ 8-140

Figure 8-90. NNTN4819A VOCON Universal Connector and ESD Circuits ......................................... 8-141

Figure 8-91. NNTN4819A VOCON Flipper Circuit ................................................................................ 8-142

Figure 8-92. NNTN4819A VOCON Controller and Memory Circuits—Sheet 1 of 2 .............................. 8-143

Figure 8-93. NNTN4819A VOCON Controller and Memory Circuits—Sheet 2 of 2 .............................. 8-144

Figure 8-94. NNTN4819A VOCON Audio/DC Circuits .......................................................................... 8-145

Figure 8-95. NNTN4819A VOCON Board Layout—Side 1 ................................................................... 8-146

Figure 8-96. NNTN4819A VOCON Board Layout—Side 2 ................................................................... 8-147

Figure 8-97. NNTN4717D VOCON Board Overall Schematic—Sheet 1 of 2 ....................................... 8-153

Figure 8-98. NNTN4717D VOCON Board Overall Schematic—Sheet 2 of 2 ....................................... 8-154

Figure 8-99. NNTN4717D VOCON Board Universal Connector Circuit Schematic .............................. 8-155

Figure 8-100.NNTN4717D VOCON Board Flipper Circuit .................................................................... 8-156

Figure 8-101.NNTN4717D VOCON Board Controller and Memory Circuits—Sheet 1 of 2 .................. 8-157

Figure 8-102.NNTN4717D VOCON Board Controller and Memory Circuits—Sheet 2 of 2 .................. 8-158

Figure 8-103.NNTN4717D VOCON Board Audio/DC Circuits .............................................................. 8-159

Figure 8-104.NNTN4717D VOCON Board Layout—Side 1 .................................................................. 8-160

Figure 8-105.NNTN4717D VOCON Board Layout—Side 2 .................................................................. 8-161

6881094C31-D July 21, 2004

Page 12

x List of Figures

Notes

July 21, 2004 6881094C31-D

Page 13

List of Tables xi

List of Tables

Table 2-1. Conventional Batteries.......................................................................................................... 2-1

Table 2-2. Smart Batteries ..................................................................................................................... 2-1

Table 2-3. Transceiver Voltage Regulators............................................................................................ 2-3

Table 2-4. VOCON Board DC Power Distribution.................................................................................. 2-4

Table 3-1. Battery Connector J3 ............................................................................................................ 3-3

Table 3-2. VOCON Connector P1.......................................................................................................... 3-4

Table 3-3. Power Control IC (U104) Pin Descriptions.......................................................................... 3-11

Table 3-4. Audio PA Status .................................................................................................................. 3-24

Table 3-5. Option-Select Functions ..................................................................................................... 3-29

Table 3-6. Encryption Module Software Kits and Algorithms ............................................................... 3-34

Table 4-1. Recommended Service Tools............................................................................................... 4-2

Table 4-2. Standard Operating Bias....................................................................................................... 4-4

Table 4-3. Power-Up Self-Check Error Codes .......................................................................................4-5

Table 4-4. Power-Up Self-Check Diagnostic Actions ............................................................................. 4-6

Table 5-1. Troubleshooting Charts List .................................................................................................. 5-1

Table 6-1. List of Waveforms ................................................................................................................. 6-1

Table 7-1. List of Tables of Board and IC Signals.................................................................................. 7-1

Table 7-2. J101 VOCON Board to Controls Flex Assembly................................................................... 7-1

Table 7-3. J107 VOCON Board to Keypad Module ............................................................................... 7-3

Table 7-4. J701 VOCON Board to Encryption Module........................................................................... 7-3

Table 7-5. U402 FLASH Pinouts............................................................................................................ 7-5

Table 7-6. U403 SRAM Pinouts ............................................................................................................. 7-7

Table 7-7. U401 Patriot MCU/DSP IC Pinouts .......................................................................................7-9

Table 7-8. U301 Flipper IC Pinouts...................................................................................................... 7-18

Table 7-9. U501 GCAP II IC Pinouts.................................................................................................... 7-20

Table 8-1. List of Transceiver Schematics and Board Overlays ............................................................ 8-1

Table 8-2. List of VOCON Schematics and Board Overlays.................................................................. 8-1

6881094C31-D July 21, 2004

Page 14

xii List of Tables

Notes

July 21, 2004 6881094C31-D

Page 15

Commercial Warranty

Limited Warranty

MOTOROLA COMMUNICATION PRODUCTS

I. What This Warranty Covers And For How Long

MOTOROLA INC. (“MOTOROLA”) warrants the MOTOROLA manufactured Communication Products listed below (“Product”) against defects in material and workmanship under normal use and service for a period of time from the date of purchase as scheduled below:

ASTRO XTS 5000 Digital Portable Units One (1) Year

Product Accessories One (1) Year

Motorola, at its option, will at no charge either repair the Product (with new or reconditioned parts), replace it (with a new or reconditioned Product), or refund the purchase price of the Product during the warranty period provided it is returned in accordance with the terms of this warranty. Replaced parts or boards are warranted for the balance of the original applicable warranty period. All replaced parts of Product shall become the property of MOTOROLA.

This express limited warranty is extended by MOTOROLA to the original end user purchaser only and is not assignable or transferable to any other party. This is the complete warranty for the Product manufactured by MOTOROLA. MOTOROLA assumes no obligations or liability for additions or modifications to this warranty unless made in writing and signed by an officer of MOTOROLA. Unless made in a separate agreement between MOTOROLA and the original end user purchaser, MOTOROLA does not warrant the installation, maintenance or service of the Product.

MOTOROLA cannot be responsible in any way for any ancillary equipment not furnished by MOTOROLA which is attached to or used in connection with the Product, or for operation of the Product with any ancillary equipment, and all such equipment is expressly excluded from this warranty. Because each system which may use the Product is unique, MOTOROLA disclaims liability for range, coverage, or operation of the system as a whole under this warranty.

II. General Provisions

This warranty sets forth the full extent of MOTOROLA’s responsibilities regarding the Product. Repair, replacement or refund of the purchase price, at MOTOROLA’s option, is the exclusive remedy. THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER EXPRESS WARRANTIES. IMPLIED WARRANTIES, INCLUDING WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED TO THE DURATION OF THIS LIMITED WARRANTY. IN NO EVENT SHALL MOTOROLA BE LIABLE FOR DAMAGES IN EXCESS OF THE PURCHASE PRICE OF THE PRODUCT, FOR ANY LOSS OF USE, LOSS OF TIME, INCONVENIENCE, COMMERCIAL LOSS, LOST PROFITS OR SAVINGS OR OTHER INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE SUCH PRODUCT, TO THE FULL EXTENT SUCH MAY BE DISCLAIMED BY LAW.

Page 16

xiv Commercial Warranty

III. State Law Rights

SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LIMITATION ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION OR EXCLUSIONS MAY NOT APPLY.

This warranty gives specific legal rights, and there may be other rights which may vary from state to state.

IV. How To Get Warranty Service

You must provide proof of purchase (bearing the date of purchase and Product item serial number) in order to receive warranty service and, also, deliver or send the Product item, transportation and insurance prepaid, to an authorized warranty service location. Warranty service will be provided by Motorola through one of its authorized warranty service locations. If you first contact the company which sold you the Product, it can facilitate your obtaining warranty service. You can also call Motorola at 1-888-567-7347 US/Canada.

V. What This Warranty Does Not Cover

A. Defects or damage resulting from use of the Product in other than its normal and customary

manner.

B. Defects or damage from misuse, accident, water, or neglect.

C. Defects or damage from improper testing, operation, maintenance, installation, alteration,

modification, or adjustment.

D. Breakage or damage to antennas unless caused directly by defects in material workmanship.

E. A Product subjected to unauthorized Product modifications, disassemblies or repairs

(including, without limitation, the addition to the Product of non-Motorola supplied equipment) which adversely affect performance of the Product or interfere with Motorola's normal warranty inspection and testing of the Product to verify any warranty claim.

F. Product which has had the serial number removed or made illegible.

G. Rechargeable batteries if:

• any of the seals on the battery enclosure of cells are broken or show evidence of tampering.

• the damage or defect is caused by charging or using the battery in equipment or service other than the Product for which it is specified.

H. Freight costs to the repair depot.

I. A Product which, due to illegal or unauthorized alteration of the software/firmware in the

Product, does not function in accordance with MOTOROLA’s published specifications or the FCC type acceptance labeling in effect for the Product at the time the Product was initially distributed from MOTOROLA.

J. Scratches or other cosmetic damage to Product surfaces that does not affect the operation of

the Product.

K. Normal and customary wear and tear.

July 21, 2004 6881094C31-D

Page 17

Commercial Warranty xv

VI. Patent And Software Provisions

MOTOROLA will defend, at its own expense, any suit brought against the end user purchaser to the extent that it is based on a claim that the Product or parts infringe a United States patent, and MOTOROLA will pay those costs and damages finally awarded against the end user purchaser in any such suit which are attributable to any such claim, but such defense and payments are conditioned on the following:

A. that MOTOROLA will be notified promptly in writing by such purchaser of any notice of such

claim;

B. that MOTOROLA will have sole control of the defense of such suit and all negotiations for its

settlement or compromise; and

C. should the Product or parts become, or in MOTOROLA’s opinion be likely to become, the

subject of a claim of infringement of a United States patent, that such purchaser will permit MOTOROLA, at its option and expense, either to procure for such purchaser the right to continue using the Product or parts or to replace or modify the same so that it becomes noninfringing or to grant such purchaser a credit for the Product or parts as depreciated and accept its return. The depreciation will be an equal amount per year over the lifetime of the Product or parts as established by MOTOROLA.

MOTOROLA will have no liability with respect to any claim of patent infringement which is based upon the combination of the Product or parts furnished hereunder with software, apparatus or devices not furnished by MOTOROLA, nor will MOTOROLA have any liability for the use of ancillary equipment or software not furnished by MOTOROLA which is attached to or used in connection with the Product. The foregoing states the entire liability of MOTOROLA with respect to infringement of patents by the Product or any parts thereof.

Laws in the United States and other countries preserve for MOTOROLA certain exclusive rights for copyrighted MOTOROLA software such as the exclusive rights to reproduce in copies and distribute copies of such Motorola software. MOTOROLA software may be used in only the Product in which the software was originally embodied and such software in such Product may not be replaced, copied, distributed, modified in any way, or used to produce any derivative thereof. No other use including, without limitation, alteration, modification, reproduction, distribution, or reverse engineering of such MOTOROLA software or exercise of rights in such MOTOROLA software is permitted. No license is granted by implication, estoppel or otherwise under MOTOROLA patent rights or copyrights.

VII. Governing Law

This Warranty is governed by the laws of the State of Illinois, USA.

6881094C31-D July 21, 2004

Page 18

xvi Commercial Warranty

Notes

July 21, 2004 6881094C31-D

Page 19

Portable Radio Model Numbering System xvii

Model Numbering, Charts, and Specifications

Portable Radio Model Numbering System

Typical Model Number:

Position:

H18U CF 9 P W 7 A N S P 0 1

1234 56 7 8 910111213141516

Position 1 - Type of Unit

H = Hand-Held Portable

Positions 2 & 3 - Model Series

18 = XTS 5000

Position 4 - Frequency Band

Less than 29.7MHz

29.7 to 35.99MHz

36 to 41.99MHz

42 to 50MHz

66 to 80MHz

74 to 90MHz

Product Specific

136 to 162MHz

146 to 178MHz

174 to 210MHz

190 to 235MHz

Values given represent range only; they are

not absolute.

Position 5 - Power Level

0 to 0.7 Watts

0.7 to 0.9 Watts

1.0 to 3.9 Watts

4.0 to 5.0 Watts

5.1 to 6.0 Watts

6.1 to 10 Watts

Position 6 - Physical Packages

RF Modem Operation

Receiver Only

Standard Control; No Display

Standard Control; With Display

Limited Keypad; No Display

Limited Keypad; With Display

Full Keypad; No Display

Full Keypad; With Display

Limited Controls; No Display

Limited Controls; Basic Display

Limited Controls; Limited Display

Rotary Controls; Standard Display

Enhanced Controls; Enhanced Display

Low Profile; No Display

Low Profile; Basic Display

Low Profile; Basic Display, Full Keypad

Position 7 - Channel Spacing

1 = 5kHz 2 = 6.25kHz 3 = 10kHz 4 = 12.5kHz

336 to 410MHz

380 to 470MHz

438 to 482MHz

470 to 520MHz

Product Specific

764 to 870MHz

825 to 870MHz

896 to 941MHz

1.0 to 1.6GHz

1.5 to 2.0GHz

5 = 15kHz 6 = 20/25kHz 7 = 30kHz 9 = Variable/Programmable

Positions 13 - 16

SP Model Suffix

Position 12 -

Unique Model Variations

C = Cenelec N = Standard Package

Position 11 - Version

Version Letter (Alpha) - Major Change

Position 10 - Feature Level

1 = Basic 2 = Limited Package 3 = Limited Plus 4 = Intermediate 5 = Standard Package

Position 9 - Primary System Type

Conventional

Privacy Plus

Clear SMARTNET

Advanced Conventional Stat-Alert

Enhanced Privacy Plus

Nauganet 888 Series

Japan Specialized Mobile Radio (JSMR)

Multi-Channel Access (MCA)

CoveragePLUS

MPT1327* - Public

MPT1327* - Private

Radiocom

Tone Signalling

Binary Signalling

Phonenet

Programmable

Secure Conventional

Secure SMARTNET

6 = Standard Plus 7 = Expanded Package 8 = Expanded Plus 9 = Full Feature/ Programmable

* MPT = Ministry of Posts and Telecommunications

Position 8 - Primary Operation

Conventional/Simplex

Conventional/Duplex

Trunked Twin Type

Dual Mode Trunked

Dual Mode Trunked/Duplex

Trunked Type I

Trunked Type II

FDMA* Digital Dual Mode

TDMA** Digital Dual Mode

Single Sideband

Global Positioning Satellite Capable

Amplitude Companded Sideband (ACSB)

Programmable

* FDMA = Frequency Division Multiple Access

** TDMA = Time Division Multiple Access

6881094C31-D July 21, 2004

MAEPF-27620-O

Page 20

xviii Portable Radio Model Numbering System

ASTRO XTS 5000 VHF Model Chart

MODEL NUMBER DESCRIPTION

H18KEC9PW5AN VHF 1-6 Watts ASTRO XTS 5000 Model I

H18KEF9PW6AN VHF 1-6 Watts ASTRO XTS 5000 Model II

H18KEH9PW7AN VHF 1-6 Watts ASTRO XTS 5000 Model III

ITEM NUMBER DESCRIPTION

XXX NLD8910_ Board, Transceiver (VHF) XXX NNTN4563_ or,

NNTN4717_

XXX — Belt Clip Kit (Refer to the Basic Service Manual accessories appendix) XXX — Battery (Refer to Table 2-1 and Table 2-2 on page 2-1) X NTN9682_ Kit, Front Cover, Model I

X NTN9681_ Kit, Front Cover, Model II

X NTN9680_ Kit, Front Cover, Model III XXX — Antenna, VHF (Refer to the Basic Service Manual accessories appendix) XXX 0985973B02 Assembly, B+ Connector XXX 1505579Z01 Cover, Accessory Connector X 2685567D01 Assembly, VOCON Shield, Model I

X 2685567D02 Assembly, VOCON Shield-Keypad, Model II

X 2685567D03 Assembly, VOCON Shield-Keypad, Model III XXX 2685220D08 Shield, RF (Transceiver) Board XXX 2785219D01 Assembly, Casting XXX 2885866A01 Connector, Compression, 26-Pin XXX 3285900E01 Gasket, Antenna O-Ring XXX 3205349Z03 Seal, Main XXX 3205351Z02 Seal, B+ XXX 3285877B02 Seal, Port XXX 3385873B01 Label, Port

XX 7285726C02 Module, LCD Display

XX 7585189D01 Pad, Display Locator XXX 7585936D02 Pad, RF XXX 7585139E01 Pad, Battery holder

X 7585104D02 Keypad, Model II

X 7585104D01 Keypad, Model III

Board, VOCON* Board, VOCON*

Notes: X =Item Included * =The radio’s model number, FLASHcode, Host code, and DSP code are required when placing an order for the VOCON Board.

• The model number and (sometimes) the FLASHcode can be found on the FCC label on the back of the radio.

• The model number, Host code, DSP code, and (sometimes) the FLASHcode can be found by putting a Model II or III

radio into the Test Mode.

• The model number, Host code, DSP code, and FLASHcode can be found by using the Programming Cable (RKN4105_ or RKN4106_) and the CPS to read a Model I, II, or III radio.

July 21, 2004 6881094C31-D

Page 21

Portable Radio Model Numbering System xix

ASTRO XTS 5000 R (Ruggedized) VHF Model Chart

MODEL NUMBER DESCRIPTION

H18KEC9PW5AN w/Q155FE Opt Ruggedized VHF 1-6 Watts ASTRO XTS 5000 Model I

H18KEF9PW6AN w/Q155FF Opt Ruggedized VHF 1-6 Watts ASTRO XTS 5000 Model II

H18KEH9PW7AN w/Q155FG Opt Ruggedized VHF 1-6 Watts ASTRO XTS 5000 Model III

H18KEC9PW5AN w/Q155FS Opt Ruggedized Yellow VHF 1-6 Watts ASTRO XTS 5000 Model I

H18KEF9PW6AN w/Q155FT Opt Ruggedized Yellow VHF 1-6 Watts ASTRO XTS 5000 Model II

H18KEH9PW7AN w/Q155FU Opt Ruggedized Yellow VHF 1-6 Watts ASTRO XTS 5000 Model III

ITEM NUMBER DESCRIPTION

XXXXXX NLD8910_ Board, Transceiver (VHF) XXXXXX NNTN4563_ or,

NNTN4717_

XXXXXX — Belt Clip Kit (Refer to the Basic Service Manual accessories appendix) XXXXXX — Battery (Refer to Table 2-1 and Table 2-2 on page 2-1) X NNTN4059_ Kit, Front Cover, Model I, Ruggedized

X NNTN4060_ Kit, Front Cover, Model II, Ruggedized

X NNTN4061_ Kit, Front Cover, Model III, Ruggedized

X NTN9685_ Kit, Yellow Front Cover, Model I, Ruggedized

X NTN9684_ Kit, Yellow Front Cover, Model II, Ruggedized

X NTN9683_ Kit, Yellow Front Cover, Model III, Ruggedized XXXXXX — Antenna, VHF (Refer to the Basic Service Manual accessories appendix) XXXXXX 0985973B02 Assembly, B+ Connector XXXXXX 1505579Z01 Cover, Accessory Connector X X 2685567D01 Assembly, VOCON Shield, Model I

X X 2685567D02 Assembly, VOCON Shield-Keypad, Model II

X X 2685567D03 Assembly, VOCON Shield-Keypad, Model III XXXXXX 2685220D08 Shield, RF (Transceiver) Board XXXXXX 2785219D04 Assembly, Ruggedized Casting XXXXXX 2885866A01 Connector, Compression, 26-Pin XXXXXX 3285900E01 Gasket, Antenna O-Ring XXXXXX 3205349Z03 Seal, Main XXXXXX 3205351Z02 Seal, B+ XXXXXX 3285877B02 Seal, Port XXXXXX 3385873B01 Label, Port

XX XX 7285726C02 Module, LCD Display

XX XX 7585189D01 Pad, Display Locator XXXXXX 7585936D02 Pad, RF XXXXXX 7585139E01 Pad, Battery holder XXXXXX 3285688D01 Plug, Vacuum test port

X X 7585104D02 Keypad, Model II

X X 7585104D01 Keypad, Model III

Board, VOCON* Board, VOCON*

Notes: X =Item Included * =The radio’s model number, FLASHcode, Host code, and DSP code are required when placing an order for the VOCON Board.

• The model number and (sometimes) the FLASHcode can be found on the FCC label on the back of the radio.

• The model number, Host code, DSP code, and (sometimes) the FLASHcode can be found by putting a Model II or III

radio into the Test Mode.

• The model number, Host code, DSP code, and FLASHcode can be found by using the Programming Cable (RKN4105_ or RKN4106_) and the CPS to read a Model I, II, or III radio.

6881094C31-D July 21, 2004

Page 22

xx Portable Radio Model Numbering System

ASTRO XTS 5000 UHF Range 1 Model Chart

MODEL NUMBER DESCRIPTION

H18QDC9PW5AN UHF Range 1, 1-5 Watts ASTRO XTS 5000 Model I

H18QDF9PW6AN UHF Range 1, 1-5 Watts ASTRO XTS 5000 Model II

H18QDH9PW7AN UHF Range 1, 1-5 Watts ASTRO XTS 5000 Model III

H18QCC9PW5AN UHF Range 1, Low Power, 20 mW - 2 Watts ASTRO XTS 5000 Model I

H18QCF9PW6AN UHF Range 1, Low Power, 20 mW - 2 Watts ASTRO XTS 5000 Model II

H18QCH9PW7AN UHF Range 1, Low Power, 20 mW - 2 Watts ASTRO XTS 5000 Model III

ITEM NUMBER DESCRIPTION

XXX NLE4272_ Board, Transceiver (UHF)

XXX NLE4278_ Board, Transceiver (UHF) Low Power

XXXXXX NNTN4819_ or,

NNTN4717_

XXXXXX — Belt Clip Kit (Refer to the Basic Service Manual accessories appendix) XXXXXX — Battery (Refer to Table 2-1 and Table 2-2 on page 2-1) X X NTN9682_ Kit, Front Cover, Model I

X X NTN9681_ Kit, Front Cover, Model II

X X NTN9680_ Kit, Front Cover, Model III XXXXXX — Antenna, UHF (Refer to the Basic Service Manual accessories appendix) XXXXXX 0985973B02 Assembly, B+ Connector XXXXXX 1505579Z01 Cover, Accessory Connector X X 2685567D01 Assembly, VOCON Shield, Model I

X X 2685567D02 Assembly, VOCON Shield-Keypad, Model II

X X 2685567D03 Assembly, VOCON Shield-Keypad, Model III XXXXXX 2685220D08 Shield, RF (Transceiver) Board XXXXXX 2785219D01 Assembly, Casting XXXXXX 2885866A01 Connector, Compression, 26-Pin XXXXXX 3285900E01 Gasket, Antenna O-Ring XXXXXX 3205349Z03 Seal, Main XXXXXX 3205351Z02 Seal, B+ XXXXXX 3285877B02 Seal, Port XXXXXX 3385873B01 Label, Port

XX XX 7285726C03 Module, LCD Display

XX XX 7585189D01 Pad, Display Locator XXXXXX 7585936D04 Pad, RF XXXXXX 7585139E01 Pad, Battery holder

X X 7585104D02 Keypad, Model II

X X 7585104D01 Keypad, Model III

Board, VOCON* Board, VOCON*

Notes: X =Item Included * =The radio’s model number, FLASHcode, Host code, and DSP code are required when placing an order for the VOCON Board.

• The model number and (sometimes) the FLASHcode can be found on the FCC label on the back of the radio.

• The model number, Host code, DSP code, and (sometimes) the FLASHcode can be found by putting a Model II or III

radio into the Test Mode.

• The model number, Host code, DSP code, and FLASHcode can be found by using the Programming Cable (RKN4105_ or RKN4106_) and the CPS to read a Model I, II, or III radio.

July 21, 2004 6881094C31-D

Page 23

Portable Radio Model Numbering System xxi

ASTRO XTS 5000 R (Ruggedized) UHF Range 1 Model Chart

MODEL NUMBER DESCRIPTION

H18QDC9PW5AN w/Q155FE Opt Ruggedized UHF Range 1, 1-5 Watts ASTRO XTS 5000 Model I

H18QDF9PW6AN w/Q155FF Opt Ruggedized UHF Range 1, 1-5 Watts ASTRO XTS 5000 Model II

H18QDH9PW7AN w/Q155FG Opt Ruggedized UHF Range 1, 1-5 Watts ASTRO XTS 5000 Model III

H18QDC9PW5AN w/Q155FS Opt Ruggedized Yellow UHF Range 1, 1-5 Watts ASTRO XTS 5000 Model I

H18QDF9PW6AN w/Q155FT Opt Ruggedized Yellow UHF Range 1, 1-5 Watts ASTRO XTS 5000 Model II

H18QDH9PW7AN w/Q155FU Opt Ruggedized Yellow UHF Range 1, 1-5 Watts ASTRO XTS 5000 Model III

H18QCC9PW5AN wQ155HW Opt Ruggedized UHF R1, Low Pwr, 20 mW-2 Watts ASTRO XTS 5000 Model I

H18QCF9PW6AN wQ155HX Opt Ruggedized UHF R1, Low Pwr, 20 mW-2 Watts ASTRO XTS 5000 Model II

H18QCH9PW7AN wQ155HY Opt Ruggedized UHF R1, Low Pwr, 20 mW-2 Watts ASTRO XTS 5000 Model III

ITEM NUMBER DESCRIPTION

XXXXXXXXX NLE4272_ Board, Transceiver (UHF) XXXXXXXXX NLE4278_ Board, Transceiver (UHF) Low Power XXXXXXXXX NNTN4819_ or,

NNTN4717_

XXXXXXXXX — Belt Clip Kit (Refer to the Basic Service Manual accessories appendix) XXXXXXXXX — Battery (Refer to Table 2-1 and Table 2-2 on page 2-1) X X NNTN4059_ Kit, Front Cover, Model I, Ruggedized

X X NNTN4060_ Kit, Front Cover, Model II, Ruggedized

X X NNTN4061_ Kit, Front Cover, Model III, Ruggedized

X NTN9685_ Kit, Yellow Front Cover, Model I, Ruggedized

X NTN9684_ Kit, Yellow Front Cover, Model II, Ruggedized

X NTN9683_ Kit, Yellow Front Cover, Model III, Ruggedized XXXXXXXXX — Antenna, UHF (Refer to the Basic Service Manual accessories appendix) XXXXXXXXX 0985973B02 Assembly, B+ Connector XXXXXXXXX 1505579Z01 Cover, Accessory Connector X X X 2685567D01 Assembly, VOCON Shield, Model I

X X X 2685567D02 Assembly, VOCON Shield-Keypad, Model II

X X X 2685567D03 Assembly, VOCON Shield-Keypad, Model III XXXXXXXXX 2685220D08 Shield, RF (Transceiver) Board XXXXXXXXX 2785219D04 Assembly, Ruggedized Casting XXXXXXXXX 2885866A01 Connector, Compression, 26-Pin XXXXXXXXX 3285900E01 Gasket, Antenna O-Ring XXXXXXXXX 3205349Z03 Seal, Main XXXXXXXXX 3205351Z02 Seal, B+ XXXXXXXXX 3285877B02 Seal, Port XXXXXXXXX 3385873B01 Label, Port

XX XX XX 7285726C03 Module, LCD Display

XX XX XX 7585189D01 Pad, Display Locator XXXXXXXXX 7585936D04 Pad, RF XXXXXXXXX 7585139E01 Pad, Battery holder XXXXXXXXX 3285688D01 Plug, Vacuum test port

X X X 7585104D02 Keypad, Model II

X X X 7585104D01 Keypad, Model III

Board, VOCON* Board, VOCON*

Notes: X =Item Included * =The radio’s model number, FLASHcode, Host code, and DSP code are required when placing an order for the VOCON Board.

• The model number and (sometimes) the FLASHcode can be found on the FCC label on the back of the radio.

• The model number, Host code, DSP code, and (sometimes) the FLASHcode can be found by putting a Model II or III

radio into the Test Mode.

• The model number, Host code, DSP code, and FLASHcode can be found by using the Programming Cable (RKN4105_ or RKN4106_) and the CPS to read a Model I, II, or III radio.

6881094C31-D July 21, 2004

Page 24

xxii Portable Radio Model Numbering System

ASTRO XTS 5000 UHF Range 2 Model Chart

MODEL NUMBER DESCRIPTION

H18SDC9PW5AN UHF Range 2, 1-5 Watts ASTRO XTS 5000 Model I

H18SDF9PW6AN UHF Range 2, 1-5 Watts ASTRO XTS 5000 Model II

H18SDH9PW7AN UHF Range 2, 1-5 Watts ASTRO XTS 5000 Model III

ITEM NUMBER DESCRIPTION

XXX NLE4273_ Board, Transceiver (UHF R2) XXX NNTN4717_ Board, VOCON* XXX — Belt Clip Kit (Refer to the Basic Service Manual accessories appendix) XXX — Battery (Refer to Table 2-1 and Table 2-2 on page 2-1) X NTN9682_ Kit, Front Cover, Model I

X NTN9681_ Kit, Front Cover, Model II

X NTN9680_ Kit, Front Cover, Model III XXX — Antenna, UHF (Refer to the Basic Service Manual accessories appendix) XXX 0985973B01 Assembly, B+ Connector XXX 1505579Z01 Cover, Accessory Connector X 2685567D01 Assembly, VOCON Shield, Model I

X 2685567D02 Assembly, VOCON Shield-Keypad, Model II

X 2685567D03 Assembly, VOCON Shield-Keypad, Model III XXX 2685220D02 Shield, RF (Transceiver) Board XXX 2785219D01 Assembly, Casting XXX 2885866A01 Connector, Compression, 26-Pin XXX 3205082E96 Gasket, Antenna O-Ring XXX 3205349Z03 Seal, Main XXX 3205351Z02 Seal, B+ XXX 3285877B02 Seal, Port XXX 3385873B01 Label, Port

XX 7285726C03 Module, LCD Display XX 7585189D01 Pad, Display Locator X 7585104D02 Keypad, Model II

X 7585104D01 Keypad, Model III

Notes: X =Item Included * =The radio’s model number, FLASHcode, Host code, and DSP code are required when placing an order for the VOCON

Board.

• The model number and (sometimes) the FLASHcode can be found on the FCC label on the back of the radio.

• The model number, Host code, DSP code, and (sometimes) the FLASHcode can be found by putting a Model II or III

radio into the Test Mode.

• The model number, Host code, DSP code, and FLASHcode can be found by using the Programming Cable (RKN4105_ or RKN4106_) and the CPS to read a Model I, II, or III radio.

July 21, 2004 6881094C31-D

Page 25

Portable Radio Model Numbering System xxiii

ASTRO XTS 5000 R (Ruggedized) UHF Range 2 Model Chart

MODEL NUMBER DESCRIPTION

H18SDC9PW5AN w/Q155FL Opt Ruggedized UHF Range 2, 1-5 Watts ASTRO XTS 5000 Model I

H18SDF9PW6AN w/Q155FM Opt Ruggedized UHF Range 2, 1-5 Watts ASTRO XTS 5000 Model II

H18SDH9PW7AN w/Q155FN Opt Ruggedized UHF Range 2, 1-5 Watts ASTRO XTS 5000 Model III

H18SDF9PW5AN w/Q155FZ Opt Ruggedized Yellow UHF Range 2, 1-5 Watts ASTRO XTS 5000 Model I

H18SDF9PW6AN w/Q155FZ Opt Ruggedized Yellow UHF Range 2, 1-5 Watts ASTRO XTS 5000 Model II

H18SDH9PW7AN w/Q155GA Opt Ruggedized Yellow UHF Range 2, 1-5 Watts ASTRO XTS 5000 Model III

ITEM NUMBER DESCRIPTION

XXXXXX NLE4273_ Board, Transceiver (UHF R2) XXXXXX NNTN4717_ Board, VOCON* XXXXXX — Belt Clip Kit (Refer to the Basic Service Manual accessories appendix) XXXXXX — Battery (Refer to Table 2-1 and Table 2-2 on page 2-1) X NNTN4059_ Kit, Front Cover, Model I, Ruggedized

X NNTN4060_ Kit, Front Cover, Model II, Ruggedized

X NNTN4061_ Kit, Front Cover, Model III, Ruggedized

X NTN9685_ Kit, Yellow Front Cover, Model I, Ruggedized

X NTN9684_ Kit, Yellow Front Cover, Model II, Ruggedized

X NTN9683_ Kit, Yellow Front Cover, Model III, Ruggedized XXXXXX — Antenna, UHF (Refer to the Basic Service Manual accessories appendix) XXXXXX 0985973B02 Assembly, B+ Connector XXXXXX 1505579Z01 Cover, Accessory Connector X X 2685567D01 Assembly, VOCON Shield, Model I

X X 2685567D02 Assembly, VOCON Shield-Keypad, Model II

X X 2685567D03 Assembly, VOCON Shield-Keypad, Model III XXXXXX 2685220D02 Shield, RF (Transceiver) Board XXXXXX 2785219D04 Assembly, Ruggedized Casting XXXXXX 2885866A01 Connector, Compression, 26-Pin XXXXXX 3205082E96 Gasket, Antenna O-Ring XXXXXX 3205349Z03 Seal, Main XXXXXX 3205351Z02 Seal, B+ Ruggedized XXXXXX 3285877B02 Seal, Port XXXXXX 3385873B01 Label, Port

XX XX 7285726C03 Module, LCD Display XX XX 7585189D01 Pad, Display Locator X X 7585104D02 Keypad, Model II

Notes: X =Item Included * =The radio’s model number, FLASHcode, Host code, and DSP code are required when placing an order for the VOCON Board.

X X 7585104D01 Keypad, Model III

• The model number and (sometimes) the FLASHcode can be found on the FCC label on the back of the radio.

• The model number, Host code, DSP code, and (sometimes) the FLASHcode can be found by putting a Model II or III

radio into the Test Mode.

• The model number, Host code, DSP code, and FLASHcode can be found by using the Programming Cable (RKN4105_ or RKN4106_) and the CPS to read a Model I, II, or III radio.

6881094C31-D July 21, 2004

Page 26

xxiv Portable Radio Model Numbering System

ASTRO XTS 5000 700–800 MHz Model Chart

MODEL NUMBER DESCRIPTION

H18UCC9PW5AN 700/800 MHz 1-3 Watts ASTRO XTS 5000 Model I

H18UCF9PW6AN 700/800 MHz 1-3 Watts ASTRO XTS 5000 Model II

H18UCH9PW7AN 700/800 MHz 1-3 Watts ASTRO XTS 5000 Model III

ITEM NUMBER DESCRIPTION

XXX NUF3577_ Board, Transceiver (700/800 MHz) XXX NTN9564_ or,

NNTN4717_

XXX — Belt Clip Kit (Refer to the Basic Service Manual accessories appendix) XXX — Battery (Refer to Table 2-1 and Table 2-2 on page 2-1) X NTN9682_ Kit, Front Cover, Model I

X NTN9681_ Kit, Front Cover, Model II

X NTN9680_ Kit, Front Cover, Model III XXX — Antenna, 700/800 MHz (Refer to the Basic Service Manual accessories appendix) XXX 0985973B02 Assembly, B+ Connector XXX 1505579Z01 Cover, Accessory Connector X 2685567D01 Assembly, VOCON Shield, Model I

X 2685567D02 Assembly, VOCON Shield-Keypad, Model II

XX 7285726C01 or,

7285726C02

XX 7585189D01 Pad, Display Locator XXX 7585936D04 Pad, RF XXX 7585139E01 Pad, Battery holder

X 7585104D02 Keypad, Model II

X 7585104D01 Keypad, Model III

Board, VOCON* Board, VOCON*

Module, LCD Display (for use only with the NTN9564_VOCON board) Module, LCD Display (for use only with the NNTN4717_VOCON board)

Notes: X =Item Included * =The radio’s model number, FLASHcode, Host code, and DSP code are required when placing an order for the VOCON Board.

• The model number and (sometimes) the FLASHcode can be found on the FCC label on the back of the radio.

• The model number, Host code, DSP code, and (sometimes) the FLASHcode can be found by putting a Model II or III

radio into the Test Mode.

• The model number, Host code, DSP code, and FLASHcode can be found by using the Programming Cable (RKN4105_ or RKN4106_) and the CPS to read a Model I, II, or III radio.

July 21, 2004 6881094C31-D

Page 27

Portable Radio Model Numbering System xxv

ASTRO XTS 5000 R (Ruggedized) 700–800 MHz Model Chart

MODEL NUMBER DESCRIPTION

H18UCC9PW5AN w/Q155FP Opt Ruggedized 700/800 MHz 1-3 Watts ASTRO XTS 5000 Model I

H18UCF9PW6AN w/Q155FQ Opt Ruggedized 700/800 MHz 1-3 Watts ASTRO XTS 5000 Model II

H18UCH9PW7AN w/Q155FR Opt Ruggedized 700/800 MHz 1-3 Watts ASTRO XTS 5000 Model III

H18UCC9PW5AN w/Q155GB Opt Ruggedized Yellow 700/800 MHz 1-3 Watts ASTRO XTS 5000 Model I

H18UCF9PW6AN w/Q155GC Opt Ruggedized Yellow 700/800 MHz 1-3 Watts ASTRO XTS 5000 Model II

H18UCH9PW7AN w/Q155GD Opt Ruggedized Yellow 700/800 MHz 1-3 Watts ASTRO XTS 5000 Model III

ITEM NUMBER DESCRIPTION

XXXXXX NUF3577_ Board, Transceiver (700/800 MHz) XXXXXX NTN9564_ or,

NNTN4717_

XXXXXX — Belt Clip Kit (Refer to the Basic Service Manual accessories appendix) XXXXXX — Battery (Refer to Table 2-1 and Table 2-2 on page 2-1) X NNTN4059_ Kit, Front Cover, Model I, Ruggedized

X NNTN4060_ Kit, Front Cover, Model II, Ruggedized

X NNTN4061_ Kit, Front Cover, Model III, Ruggedized

X NTN9685_ Kit, Yellow Front Cover, Model I, Ruggedized

X NTN9684_ Kit, Yellow Front Cover, Model II, Ruggedized

X NTN9683_ Kit, Yellow Front Cover, Model III, Ruggedized

XXXXXX — Antenna, 700/800 MHz (Refer to the Basic Service Manual accessories

XXXXXX 0985973B02 Assembly, B+ Connector XXXXXX 1505579Z01 Cover, Accessory Connector X X 2685567D01 Assembly, VOCON Shield, Model I

X X 2685567D02 Assembly, VOCON Shield-Keypad, Model II

XX XX 7285726C01 or,

7285726C02

XX XX 7585189D01 Pad, Display Locator XXXXXX 7585936D04 Pad, RF XXXXXX 7585139E01 Pad, Battery holder XXXXXX 3285688D01 Plug, Vacuum test port

X X 7585104D02 Keypad, Model II

X X 7585104D01 Keypad, Model III

Board, VOCON* Board, VOCON*

appendix)

Module, LCD Display (for use only with the NTN9564_VOCON board) Module, LCD Display (for use only with the NNTN4717_VOCON board)

Notes: X =Item Included * =The radio’s model number, FLASHcode, Host code, and DSP code are required when placing an order for the VOCON Board.

• The model number and (sometimes) the FLASHcode can be found on the FCC label on the back of the radio.

• The model number, Host code, DSP code, and (sometimes) the FLASHcode can be found by putting a Model II or III

radio into the Test Mode.

• The model number, Host code, DSP code, and FLASHcode can be found by using the Programming Cable (RKN4105_ or RKN4106_) and the CPS to read a Model I, II, or III radio.

6881094C31-D July 21, 2004

Page 28

xxvi Portable Radio Model Numbering System

Specifications for VHF Radios

All specifications are per Telecommunications Industries Association TIA-603 unless otherwise noted.

GENERAL RECEIVER TRANSMITTER

FCC Designation: AZ489FT3804 Temperature Range:

Operating: –30°C to +60°C Storage: –40°C to +85°C

Power Supply: Nickel-Cadmium Battery (NiCd)

or Nickel-Metal-Hydride Battery (NiMH)

or Lithium-Ion Battery (Li-Ion)

Battery Voltage:

Nominal: 7.5 Vdc Range: 6 to 9 Vdc

Transmit Current Drain (Typical): 2100 mA Receive Current Drain (Rated Audio): 240 mA Standby Current Drain: 80 mA

Recommended Battery:

Smart NiMH: NNTN4435_

or Ultra-HIgh-Capacity NiCd: NTN8294_ or Extended-Capacity NiMH: NTN8293_ or Li-Ion: NTN8610_ or Ultra–High-Capacity NiCd FM: NTN8295_* or Ultra–High-Capacity NiMH FM: NTN8299_*

Optional FM (Factory Mutual) Battery:

* FM Intrinsically Safe: Class I, II, III, Division 1,

Groups C, D,E, F, and G. FM Non-incendive: Class 1, Division 2, Groups A, B, C, and D.

Dimensions (H x W x D):

Note: 2.44" = width at PTT; 2.34" = width at bottom; 1.83" = depth at speaker; 0.97" = depth at keypad

Without Battery (Radio Only):

6.58" x 2.44" x 1.83"/6.58" x 2.34" x 0.97" (167.13 mm x 61.90 mm x 46.42 mm/

167.13 mm x 59.49 mm x 24.56 mm)

With Battery:

6.58" x 2.44" x 1.83"/6.58" x 2.34" x 1.65" (167.13 mm x 61.90 mm x 46.42 mm/

167.13 mm x 59.49 mm x 41.97 mm)

Frequency Range: 136-174 MHz

Bandwidth: 38 MHz

Usable Sensitivity (typical)

(12 dB SINAD): 0.20 µV

Intermodulation (typical): –75 dB

Selectivity (typical):

(25/30 kHz Channel): –75 dB (12.5 kHz Channel): –63 dB

Spurious Rejection (typical): –75 dB

Frequency Stability

(–30+60°C; 25°C reference): ±0.0002%

Rated Audio: 500 mW

FM Hum and Noise (typical):

25 kHz –55 dB

12.5 kHz –49 dB

Distortion (typical): 1.5%

Channel Spacing: 12.5/25 kHz

Frequency Range: 136-174 MHz

RF Power:

136-174 MHz: 1-6 Watts

Frequency Stability (typical)

(–30 to +60°C; 25°C ref.): ±0.0002%

Emission (typical conducted): –75 dBc

FM Hum and Noise (typical)

(Companion Receiver): 25 kHz –48 dB

12.5 kHz –42 dB

Distortion (typical): 1.0% (typical)

Modulation Limiting: 25 kHz chnls ±5.0 kHz

12.5 kHz chnls ±2.5 kHz

ACPR (typical): 25 kHz –73 dBc

12.5 kHz –63 dBc

Emissions Designators:

20K0F1E, 16K0F3E, 11K0F3E, 8K10F1D, and 8K10F1E

Weight: (w/ Antenna):

Less Battery: 14.10 oz (383 gm) With Ultra-High Cap. NiCd: 25.19 oz (693 gm) With Li-Ion: 20.41 oz (583 gm) With Ultra-High Cap. NiMH:23.45 oz (644 gm) With Extended- Cap. NiMH:24.04 oz (682 gm)

July 21, 2004 6881094C31-D

Specifications subject to change without notice.

Page 29

Portable Radio Model Numbering System xxvii

Specifications for UHF Range 1 Radios

All specifications are per Telecommunications Industries Association TIA-603 unless otherwise noted.

GENERAL RECEIVER TRANSMITTER

FCC Designation: AZ489FT4855 Temperature Range:

Operating: –30°C to +60°C Storage: –40°C to +85°C

Power Supply: Nickel-Cadmium Battery (NiCd)

or Nickel-Metal-Hydride Battery (NiMH)

or Lithium-Ion Battery (Li-Ion)

Battery Voltage:

Nominal: 7.5 Vdc Range: 6 to 9 Vdc

Transmit Current Drain (Typical): 2100 mA Receive Current Drain (Rated Audio): 240 mA Standby Current Drain: 80 mA

Recommended Battery:

Smart NiMH: NNTN4435

or Ultra-HIgh-Capacity NiCd: NTN8294 or Extended-Capacity NiMH: NTN8293 or Li-Ion: NTN8610 or Ultra–High-Capacity NiCd FM: NTN8295* or Ultra–High-Capacity NiMH FM: NTN8299*

Optional FM (Factory Mutual) Battery:

* FM Intrinsically Safe.

Dimensions (H x W x D):

Note: 2.44" = width at PTT; 2.34" = width at bottom; 1.83" = depth at speaker; 0.97" = depth at keypad

Without Battery (Radio Only):

6.58" x 2.44" x 1.83"/6.58" x 2.34" x 0.97"

(167.13 mm x 61.90 mm x 46.42 mm/

167.13 mm x 59.49 mm x 24.56 mm)

With Battery:

6.58" x 2.44" x 1.83"/6.58" x 2.34" x 1.65"

(167.13 mm x 61.90 mm x 46.42 mm/

167.13 mm x 59.49 mm x 41.97 mm)

Frequency Range: 380-470 MHz

Bandwidth: 90 MHz

Usable Sensitivity (typical)

(12 dB SINAD): 0.25 µV

Intermodulation (typical): –75 dB

Selectivity (typical):

(25/30 kHz Channel): –78 dB (12.5 kHz Channel): –60 dB

Spurious Rejection (typical): –80 dB

Frequency Stability

(–30+60°C; 25°C reference): ±0.0002%

Rated Audio: 500 mW

FM Hum and Noise (typical):

25 kHz –54 dB

12.5 kHz –45 dB

Distortion (typical): 1.0%

Channel Spacing: 12.5/25 kHz

Frequency Range: 380-470 MHz

RF Power:

380-470 MHz: 1-5 Watts

Frequency Stability (typical)

(–30 to +60°C; 25°C ref.): ±0.0002%

Emission (typical conducted): –70 dBc

FM Hum and Noise (typical)

(Companion Receiver): 25 kHz –45 dB

12.5 kHz –40 dB

Distortion (typical): 1.5% (typical)

Modulation Limiting: 25 kHz chnls ±5.0 kHz

12.5 kHz chnls ±2.5 kHz

ACPR (typical): 25 kHz –77 dBc

12.5 kHz –62 dBc

Emissions Designators:

20K0F1E, 16K0F3E, 11K0F3E, 8K10F1D, and 8K10F1E

Weight: (w/ Antenna):

Less Battery: 14.10 oz (383 gm) With Ultra-High Cap. NiCd: 25.19 oz (693 gm) With Li-Ion: 20.41 oz (583 gm) With Ultra-High Cap. NiMH:23.45 oz (644 gm) With Extended- Cap. NiMH:24.04 oz (682 gm)

6881094C31-D July 21, 2004

Specifications subject to change without notice.

Page 30

xxviii Portable Radio Model Numbering System

Specifications for UHF Range 2 Radios

All specifications are per Telecommunications Industries Association TIA-603 unless otherwise noted.

GENERAL RECEIVER TRANSMITTER

FCC Designation: AZ489FT4864 Temperature Range:

Operating: –30°C to +60°C Storage: –40°C to +85°C

Power Supply: Nickel-Cadmium Battery (NiCd)

or Nickel-Metal-Hydride Battery (NiMH)

or Lithium-Ion Battery (Li-Ion)

Battery Voltage:

Nominal: 7.5 Vdc Range: 6 to 9 Vdc

Transmit Current Drain (Typical): 2100 mA Receive Current Drain (Rated Audio): 240 mA Standby Current Drain: 80 mA

Recommended Battery:

Smart NiMH: NNTN4435

or Ultra-HIgh-Capacity NiCd: NTN8294 or Extended-Capacity NiMH: NTN8293 or Li-Ion: NTN8610 or Ultra–High-Capacity NiCd FM: NTN8295* or Ultra–High-Capacity NiMH FM: NTN8299*

Optional FM (Factory Mutual) Battery:

* FM Intrinsically Safe.

Dimensions (H x W x D):

Note: 2.44" = width at PTT; 2.34" = width at bottom; 1.83" = depth at speaker; 0.97" = depth at keypad

Without Battery (Radio Only):

6.58" x 2.44" x 1.83"/6.58" x 2.34" x 0.97" (167.13 mm x 61.90 mm x 46.42 mm/

167.13 mm x 59.49 mm x 24.56 mm)

With Battery:

6.58" x 2.44" x 1.83"/6.58" x 2.34" x 1.65" (167.13 mm x 61.90 mm x 46.42 mm/

167.13 mm x 59.49 mm x 41.97 mm)

Frequency Range: 450-520 MHz

Bandwidth: 70 MHz

Usable Sensitivity (typical)

(12 dB SINAD): 0.19 µV

Intermodulation (typical): – 77 dB

Selectivity (typical):

(25/30 kHz Channel): – 79 dB (12.5 kHz Channel): –65 dB

Spurious Rejection (typical): – 85 dB

Frequency Stability

(–30+60°C; 25°C reference): ±0.0002%

Rated Audio: 500 mW

FM Hum and Noise (typical):

25 kHz –53 dB

12.5 kHz –45 dB

Distortion (typical): 1.0%

Channel Spacing: 12.5/25 kHz

Frequency Range: 450-520 MHz

RF Power:

450-520 MHz: 1-5 Watts

Frequency Stability (typical)

(–30 to +60°C; 25°C ref.): ±0.0002%

Emission (typical conducted): –75 dBc

FM Hum and Noise (typical)

(Companion Receiver): 25 kHz –45 dB

12.5 kHz –40 dB

Distortion (typical): 1.5% (typical)

Modulation Limiting: 25 kHz chnls ±5.0 kHz

12.5 kHz chnls ±2.5 kHz

ACPR (typical): 25 kHz –77 dBc

12.5 kHz –63 dBc

Emissions Designators:

20K0F1E, 16K0F3E, 11K0F3E, 8K10F1D, and 8K10F1E

Weight: (w/ Antenna):

Less Battery: 13.0 oz (368 gm) With Ultra-High Cap. NiCd: 25.19 oz (693 gm) With Li-Ion: 20.41 oz (583 gm) With Ultra-High Cap. NiMH:23.45 oz (644 gm) With Extended- Cap. NiMH:24.04 oz (682 gm)

July 21, 2004 6881094C31-D

Specifications subject to change without notice.

Page 31

Portable Radio Model Numbering System xxix

Specifications for 700–800 MHz Radios

All specifications are per Telecommunications Industries Association TIA-603 unless otherwise noted.

GENERAL RECEIVER TRANSMITTER

FCC Designation: AZ489FT5806 Temperature Range:

Operating: –30°C to +60°C Storage: –40°C to +85°C

Power Supply: Nickel-Cadmium Battery (NiCd)

or Nickel-Metal-Hydride Battery (NiMH)

or Lithium-Ion Battery (Li-Ion)

Battery Voltage:

Nominal: 7.5 Vdc Range: 6 to 9 Vdc

Transmit Current Drain (Typical): 1400 mA Receive Current Drain (Rated Audio): 240 mA Standby Current Drain: 80 mA

Recommended Battery:

Ultra-HIgh-Capacity Smart NiCd: HNN9031_

or Ultra-HIgh-Capacity NiCd: NTN8294_ or Extended-Capacity NiMH: NTN8293_ or Li-Ion: NTN8610_ or Ultra–High-Capacity NiCd FM: NTN8295_* or Ultra–High-Capacity NiMH FM: NTN8299_*

Optional FM (Factory Mutual) Battery:

* FM Intrinsically Safe: Class I, II, III, Division 1,

Groups C, D,E, F, and G. FM Non-incendive: Class 1, Division 2, Groups A, B, C, and D.

Dimensions (H x W x D):

Note: 2.44" = width at PTT; 2.34" = width at bottom; 1.83" = depth at speaker; 0.97" = depth at keypad

Without Battery (Radio Only):

6.58" x 2.44" x 1.83"/6.58" x 2.34" x 0.97"

(167.13 mm x 61.90 mm x 46.42 mm/

167.13 mm x 59.49 mm x 24.56 mm)

With Battery:

6.58" x 2.44" x 1.83"/6.58" x 2.34" x 1.65"

(167.13 mm x 61.90 mm x 46.42 mm/

167.13 mm x 59.49 mm x 41.97 mm)

Frequency Range:

700 MHz: 764 to 767; 773 to 776 MHz 800 MHz: 851 to 870 MHz

Bandwidth: 106 MHz

Usable Sensitivity (typical)

(12 dB SINAD): 0.20 µV

Intermodulation (typical): –75 dB

Selectivity (typical):

(25/30 kHz Channel): –72 dB (12.5 kHz Channel): –63 dB

Spurious Rejection (typical): –75 dB

Frequency Stability

(–30+60°C; 25°C reference): ±0.00015%

Rated Audio: 500 mW

FM Hum and Noise (typical):

25 kHz –48 dB

12.5 kHz –40 dB

Distortion (typical): 1.5%

Channel Spacing: 12.5/25 kHz

Frequency Range:

700 MHz: 764 to 767; 773 to 776; 794 to 797;

803 to 806 MHz

800 MHz: 806 to 824; 851 to 870 MHz

RF Power:

764-806 MHz: 2.5 Watts 806-870 MHz: 3 Watts

Frequency Stability (typical)

(–30 to +60°C; 25°C ref.): ±0.00015%

Emission (typical conducted): –75 dBc

FM Hum and Noise (typical)

(Companion Receiver): 25 kHz –45 dB

12.5 kHz –40 dB

Distortion (typical): 1.5% (typical)

Modulation Limiting: 25 kHz chnls ±5.0 kHz

12.5 kHz chnls ±2.5 kHz

Emissions Designators:

20K0F1E, 16K0F3E, 11K0F3E, 8K10F1D, and 8K10F1E

Weight: (w/ Antenna):

Less Battery: 14.10 oz (383 gm) With Ultra-High Cap. NiCd: 25.19 oz (693 gm) With Li-Ion: 20.41 oz (583 gm) With Ultra-High Cap. NiMH:23.45 oz (644 gm) With Extended- Cap. NiMH:24.04 oz (682 gm)

6881094C31-D July 21, 2004

Specifications subject to change without notice.

Page 32

xxx Portable Radio Model Numbering System

Notes

July 21, 2004 6881094C31-D

Page 33

Chapter 1 Introduction

1.1 General

This manual includes all the information needed to maintain peak product performance and maximum working time for the ASTRO XTS 5000 radio. This detailed level of service (component level) is typical of the service performed by some service centers, self-maintained customers, and distributors.

Use this manual in conjunction with the ASTRO XTS 5000 VHF/UHF Range 1/700–800 MHz Digital Portable Radios Basic Service Manual (Motorola part number 6881094C28), which can help in troubleshooting a problem to a particular printed circuit (PC) board.

Conduct the basic performance checks outlined in the basic service manual first to verify the need to analyze the radio and to help pinpoint the functional problem area. In addition, you will become familiar with the radio test mode of operation, which is a helpful tool. If any basic receive or transmit parameters fail to be met, the radio should be aligned according to the radio alignment procedure.

Included in other areas of this manual are functional block diagrams, detailed theory of operation, troubleshooting charts and waveforms, schematics, and parts lists. You should become familiar with these sections to aid in determining circuit problems. Also included are component location diagrams to aid in locating individual circuit components and some IC diagrams, which identify some convenient probe points.

“Chapter 3, Theory of Operation,” on page 3-1, contains detailed descriptions of the operations of

many circuits. Once you locate the problem area, review the troubleshooting flowchart for that circuit to fix the problem.

Page 34

1-2 Introduction: Notations Used in This Manual

1.2 Notations Used in This Manual

Throughout the text in this publication, you will notice the use of warnings, cautions, and notes. These notations are used to emphasize that safety hazards exist, and care must be taken and observed.

NOTE: An operational procedure, practice, or condition that is essential to emphasize.

a u t i o

A R N I N

D A N G E R

CAUTION indicates a potentially hazardous situation which, if not avoided, might

WARNING indicates a potentially hazardous situation which, if not avoided, could

DANGER indicates an imminently hazardous situation which, if not avoided, will injury.

result in equipment damage.

result in death or injury.

result in death or

July 21, 2004 6881094C31-D

Page 35

Chapter 2 Radio Power

This chapter provides a detailed circuit description of the power distribution of an ASTRO XTS 5000 radio.

2.1 General

In the ASTRO XTS 5000 radio, power (B+) is distributed to two boards: the transceiver (RF) board and the VOCON board (see Figure 2-1 on page 2-2 for UHF Range 1 (R1) and 700–800 MHz, and

Figure 2-2 on page 2-2 for VHF). In the case of a secure model radio, B+ is also supplied to the

encryption module.

Power for the radio is provided through a battery supplying a nominal 7.5 Vdc directly to the transceiver. The following battery types and capacities are available:

Table 2-1. Conventional Batteries

Part Number Description

NTN8294 1525 NiCd, Ultra-High Capacity

NTN8295 1525 NiCd High-Capacity Factory Mutual (FM) Intrinsically Safe

NTN8297 1525 NiCd High-Capacity Factory Mutual (FM) Intrinsically Safe,

Rugged

NTN8299 1750 NiMH Ultra-Capacity FM

NTN8610 1650 Lithium Ion

NTN8923 1800 NiMH Ultra-Capacity

NTN9177 Battery Holder, Clamshell, Black

NTN9183 Battery Holder, Clamshell, Orange

RNN4006 3000 NiMH

RNN4007 3000 NiMH FM

Table 2-2. Smart Batteries

Part Number Description

HNN9031 1525 NiCd Smart

HNN9032 1525 NiCd Smart FM

NNTN4435_R 1800 mAh, NiMH Smart

NNTN4436 1750 NiMH Smart FM (VHF use only)

Page 36

2-2 Radio Power: General

Battery

J1 BATT

RAW B+

(control signal)

7.5 Volts

(Nominal)

Analog Circuits

SW_B+

3VA

3 Volts

RF Board

Fuse

Digital Circuits

V5A

5 Volts

3 Volts

FB+

P201

UNSW_B+

FET

1.55V

1.55 Volts

(VSW_1.55)

VOCON Board

3.8 V (VSW1)

1.875 Volts (VSW2)

Figure 2-1. DC Power Distribution—UHF Range 1 and 700–800 MHz Radios

Battery

J1 BATT

RF Board

Fuse

FB+

P201

UNSW_B+

VOCON Board

VCC5

SW_B+

VCC5

GCAP II

3 Volts

(VREF)

MAEPF-27419-A

5 Volts

3 Volts

(V2)

5 Volts

RAW B+

SW_B+

(control signal)

7.5 Volts

(Nominal)

V3B

3 Volts

Misc. Supply

V5A

5 Volts

V3A

3 Volts

Analog Circuits

V3D

3 Volts

Digital Circuits

FET

1.55V

1.55 Volts

(VSW_1.55)

SW_B+

3.8 V (VSW1)

1.875 Volts (VSW2)

GCAP II

3 Volts

(VREF)

MAEPF-27520-A

3 Volts

(V2)

Figure 2-2. DC Power Distribution—VHF and Range 2 Radios

B+ from the battery is electrically switched to most of the radio, rather than routed through the On/ Off/volume control knob, S1. The electrical switching of B+ supports a keep-alive mode. Under software control, even when the On/Off/volume control knob has been turned to the Off position, power remains on until the MCU completes its power-down, at which time the radio is physically powered down.

July 21, 2004 6881094C31-D

Page 37

Radio Power: DC Power Routing—Transceiver Board 2-3

2.2 DC Power Routing—Transceiver Board

NOTE: Refer to Table 8-1, “List of Transceiver Schematics and Board Overlays,” on page 8-1 for a

listing of schematics showing the transceiver board DC power routing components.

Connector J1, the B-plus assembly, connects the battery to the transceiver board. Capacitors C1, C2, and C3 provide protection against momentary breaks at the B-plus connector due to contact bounce when the radio is dropped.

UHF R1 and 700–800 MHz: Components C5, E4, C7, and E1 form a power-line filter for signal RAWB+, which supplies battery voltage to the transmitter PA.

UHF R2 and VHF: Component E1 forms a power-line filter for signal RAWB+, which supplies battery voltage to the transmitter PA.

Transistor Q1, controlled by signal SWB+ (SB+ for VHF) from the VOCON board, turns on XB+, which supplies to the 5-V linear regulator and TX_ALC block.

Fuse F901 and filter C11, L1, C10 (C14, L1, C13 for VHF) supply fused B-plus to the VOCON board. In turn, the VOCON board supplies VSW1, regulated 3.8 Vdc, from the Global Control Audio and Power (GCAP) switching regulator to the XCVR. Switch Q99 (Q503 for VHF), controlled by SWB+, turns on V38 to the XCVR 3-V linear regulators. The XCVR regulated power supplies are summarized in Table 2-3.

Table 2-3. Transceiver Voltage Regulators

Ref.

Desig.

U1 LP2989 V5A Regulated 5.0 Vdc

U2 LP3985 V3D Regulated 3.0 Vdc digital

U3 LP3985 V3A UHF R1 and 700–800 MHz: Regulated 3.0 Vdc

Name

Output

Signal Name

Description

analog for the RX FE

UHF R2 and VHF: Regulated 3.0 Vdc analog

for synthesizer

U5 LP3985 V3B

UHF R2 and VHF only: Regulated 3.0 Vdc

miscellaneous supply

2.3 DC Power Routing—VOCON Board

NOTE: Refer to Table 8-2, “List of VOCON Schematics and Board Overlays,” on page 8-1 for a listing

of schematics showing the VOCON board DC power routing components.

Raw B+, or unswitched B+, (UNSW_B+) is routed to connector P1 on the transceiver board, and then on to P201 on the VOCON board. Here the UNSW B+ is forwarded to the radio’s control top On/Off/volume knob through connector J101 and a flex circuit, as well as to regulator U505 (VCC5).

The On/Off/volume knob controls B+SENSE to Q502, which in turn controls Q501. Transistor Q501 is a solid-state power switch that provides SW B+ to the VOCON board, the audio PA, the GCAP II IC (via GCAP_B+), and back to the transceiver board.

In the case of a secure radio model, SW B+ and UNSW B+ are also supplied to the encryption module through connector J701.

6881094C31-D July 21, 2004

Page 38

2-4 Radio Power: DC Power Routing—VOCON Board

Transistor Q501 is also under the control of the microcontroller unit (MCU) via Vref from U501. This allows the MCU to follow an orderly power-down sequence when it senses that B+SENSE is off. This sense is provided through MECH_SW_BAR (inverted B+SENSE, see Q508).

The digital circuits in the VOCON board are powered from regulators located in the GCAP II IC (U501), an external 5 Vdc regulator (VCC5, U505), and an external 1.55 Vdc regulator (VSW_1.55V, on NNTN4717 VOCON kit only). The GCAP II IC provides three supplies: VSW1, VSW2, and V2. These regulators are software programmable. Table 2-4 lists the supply voltages and the circuits that use these voltages.

Table 2-4. VOCON Board DC Power Distribution

Supply

Name

UNSW_B+ 9 to 6 Vdc

SW_B+ 9 to 6 Vdc

VCC5 5Vdc Linear

VSW1 3.8 Vdc Switching

Output

Volta g e

7.5 Vdc nominal

Supply Type

Battery N/A VCC5 input

Battery N/A VSW1 input (GCAP)

Regulator

regulator software progammable

Unprogrammed Output Voltage

N/A Smart battery circuitry

3.2 Vdc 3-V regulators (RF)

Circuits Supplied

Mechanical switch Power switch (FET) Secure module Real-time clock battery

Audio power amplifier Side connector SW_B+ to transceiver board GCAP IC Secure module USB circuitry

Int. / ext. microphone bias Audio preamplifier Flipper IC Keypad / Display LEDs

VSW2 input V2 input

VSW2 1.8 Vdc Switching

V2 3 Vdc*

2.9 Vdc**

VSW_1_55V 1.55 Vdc Linear

* = NTN9564,NNTN4563 & NNTN4819 VOCON kits ** = NNTN4717 VOCON kit

July 21, 2004 6881094C31-D

regulator software progammable

Linear regulator software progammable

regulator

2.2 Vdc Patriot core FLASH IC SRAM Display (only on NTN9564 VOCON board)

2.775 Vdc Patriot I/O ring Flipper IC EEPOT Display

16.8 MHz buffer

N/A Patriot core (only on

NNTN4717 VOCON board)

Page 39

Chapter 3 Theory of Operation

A C

N i w

This chapter provides a detailed circuit description of the ASTRO XTS 5000 transceiver and VOCON boards. When reading the theory of operation, refer to the appropriate schematic and component location diagrams located in the back of this manual. This detailed theory of operation can help isolate the problem to a particular component.

The ASTRO XTS 5000 radio is a dual-mode (digital/analog), microcontroller-based transceiver incorporating a digital signal processor (DSP). The microcontroller handles the general radio control, monitors status, and processes commands input from the keypad or other user controls. The DSP processes the typical analog signals, and generates the standard signaling digitally to provide compatibility with existing analog systems. In addition, the DSP provides digital modulation techniques, utilizing voice encoding techniques with error correction schemes. This provides the user with enhanced range and audio quality, all in a reduced bandwidth channel requirement. It allows embedded signaling, which can mix system information and data with digital voice to support a multitude of system features.

The three ASTRO XTS 5000 radio models (I, II, and III) are available in the VHF (136 to 174 MHz), UHF Range 1 (380 to 470 MHz), UHF Range 2 (450 to 520 MHz), and 700–800 MHz (764 to 870 MHz) frequency bands.

The ASTRO XTS 5000 radio (Figure 3-1) consists of the following:

• Band-dependent transceiver (RF) board

• Vocoder/controller (VOCON) board

• Universal flex assembly

• Display and keypad assemblies (Models II and III only)

• Encryption board (secure models only)

Antenna

Universal

Flex

J1 P101

(Side Connector,

Controls, LEDs,

Speaker,

Microphone)

Keypad

Display

External

ccessory onnector

ote:

ndicates 26

ires

P201 J2

J101

VOCON

Board

J107

J701

J301

Transceiver

Board

Encryption

Module

(Optional)

7.5V

Battery

MAEPF-27277-O

Page 40

3-2 Theory of Operation: Transceiver Board

Figure 3-1. XTS 5000 Overall Block Diagram

3.1 Transceiver Board

The transceiver (XCVR) board performs the transmitter and receiver functions necessary to translate between voice and data from the VOCON board and the modulated radio-frequency (RF) carrier at the antenna. The transceiver board contains all the radio’s RF circuits for the following major components:

• Receiver

• Transmitter

• Frequency Generation Unit (FGU)

Figure 3-2 illustrates the VHF transceiver board block diagram while Figure 3-3 on page 3-3

illustrates the transceiver UHF Range 1 and 700–800 MHz transceiver block diagrams.

Buffer

Q304

Mixer U401

TX Driver

Amplifier

U102

Preselector

Filter

FL401

Module

PCIC U104

Power

RX LNA

RF Power

Detector

D103

Q401

Directional

Coupler

U101

Preselector

Filter

FL402

Antenna

Switch

Harmonic

Filter

Antenna

TX_SSI from

VOCON Board

RX_SSI to

VOCON Board

Reference

Oscillator

EPIC Y200

LPF

FL200

Serial EE

PROM

DAC

U203

FracN

U203

MOD

ABACUS III U500

Loop Filter

VCO

VCOBIC

U202

Crystal

Filter

FL403

Sample

Clk

Figure 3-2. Transceiver (VHF) Block Diagram (Power and Control Omitted)

July 21, 2004 6881094C31-D

2ND

MAEPF-27529-O

Page 41

Theory of Operation: Transceiver Board 3-3

TX Driver

Reference

Oscillator

Y200

FracN

TX_SSI from

OCON Board

RX_SSI to

VOCON Board

DAC

U203

FL200

Serial EE

LPF

PROM

Sample

Clk

MOD

ABACUS III U500

Figure 3-3. Transceiver (UHF Range 1, UHF Range 2 and 700–800 MHz) Block Diagram

3.1.1 Interconnections

VCOBIC

Loop Filter

Note: 700/800 MHz has 3 VCO's (2 TX/RX, 1 TX) UHF Range 1, has 4 VCO's (2 TX, 2 RX) UHF Range 2, has 3 VCOs (2 Rx, 1 TX)

2ND

See Note

VCO 1

VCO 2

VCO 3

VCO 4

Crystal

Filter

(Power and Control Omitted)

Buffer

Mixer

Amplifier

U102

Preselector

Filter

Power

Module

PCIC U104

D101

RX LNA

Directional

Coupler

U101

U106

Preselector

Filter

D102

Antenna Switch

Harmonic

MAEPF-27530-A

Filter

Anten

This section describes the various interconnections for the transceiver board.

3.1.1.1 Battery Connector J3

Battery connector J3 consists of three gold-plated contacts on the printed circuit board that mate with a B-plus connector assembly. Signal descriptions are in Table 3-1.

Table 3-1. Battery Connector J3

Pin No. Signal Description

1 BATT Battery positive terminal, nominally 7.5 Vdc

2 BSTAT Battery status, from battery to VOCON

3 BAT_RTN Battery negative terminal, tied to PCB ground

3.1.1.2 VOCON Connector P1

VOCON connector P1 (located on the XCVR board) consists of 26 gold-plated pads for the 26-pin compression connector, and one plated tool hole (pin 27) used for connector alignment. This is a digital interface carrying DC power, control, and data between the XCVR and VOCON boards. P1 connects through the compression connector to P201 on the VOCON board.

6881094C31-D July 21, 2004

Page 42

3-4 Theory of Operation: Transceiver Board

Table 3-2 lists the connector pins, their signals, and functions. SPI refers to serial peripheral

interface, which is the control bus from the microprocessor. SSI is the serial synchronous interface bus for data to and from the DSP. There is a RX SSI bus for demodulated data from the receiver and a TX SSI bus for modulation data to the transmitter.

Table 3-2. VOCON Connector P1

Pin No.

VOCON Signal

1 UNSW_B+ FUB+ O dc Fused B+ to VOCON

2 UNSW_B+ FUB+ O dc Fused B+ to VOCON

3 LOCK_DET* LOCK O status FGU lock detect

4 TX_SSI_DATA TXTD O ssi TX SSI data

5 SSI_CLK RXCK O ssi RX SSI clock

6 SSI_FSYNC SSFS O ssi RX SSI frame sync

7 16.8MHz F168 O RF 16.8 MHz reference clock

8 SW_B+ SWB+ I dc Switch control

9 TX_SSI_FSYNC TXFS I ssi TX SSI frame sync

10 TX_SSI_CLK TXCK I ssi TX SSI clock

11 G ND GND

12 RX_SSI_DATA RXDO O ssi RX SSI data

13 ABACUS3_CS ABCS I ssi SPI Abacus chip select

XCVR Signal

XCVR

I/O

Type Description

14 GND GND

15 VSW1 VSW1 I dc Regulated 3.8 V

16 SPI_CLK_A SPCK I spi SPI clock

17 SPI_MISO_A MISO O spi SPI data out

18 EEPROM_SEL* EECS I spi SPI EEPROM chip select

19 TX_INHIBIT TXINH I control TX inhibit control for secure

20 GND GND

21 BAT_STATUS BSTAT O dc Battery status

22 GND GND

23 SPI_MOSI_A MOSI I/O spi SPI data I/O

24 UNI_CS USEL I spi SPI universal chip select

25 AD_CS ADCS I spi SPI ADC chip select

26 POR* RSTL I/O control asynchronous reset, active low

July 21, 2004 6881094C31-D

Page 43

Theory of Operation: Transceiver Board 3-5

3.1.1.3 Antenna Port J2

Antenna port J2 is a surface-mount, miniature coaxial connector for the antenna cable.

3.1.1.4 Serial EEPROM

The serial, electrostatically erasable, programmable, read-only memory (EEPROM), U907 in VHF and 700–800 MHz or U4 in UHF Range 1, holds all of the transceiver tuning data. This allows transceivers to be tuned in the factory and installed in the field without retuning.

3.1.1.5 Power Conditioning Components

DC power-conditioning components include zener diodes, capacitors, ferrite beads, a power inductor, and the fuse. Diodes VR1 and VR2 provide over-voltage protection. Ferrite beads (designated E1, etc.) and capacitors suppress electromagnetic interference from the transceiver. The power-line filter consisting of L1, C13, and C14 for VHF radios or L1, C10, and C11 for UHF Range 1 and 700–800 MHz radios, suppresses digital noise from the VOCON board switching power supplies that could degrade the transmitter spectral purity.

Pass transistor Q1 switches the battery voltage to the transceiver when control signal SWB+ or SB+ from the VOCON board is asserted high. This increases the transceiver’s immunity to conducted interference that might be present on SWB+ or SB+, such as from switching voltage regulators on the VOCON board.

Ground clips G1 through G12 make contact between the transceiver board ground and the radio chassis. The chassis connection is a necessary electrical reference point to complete the antenna circuit path. Shields SH101 through SH700 and the tool hole appear on the schematic to show their connection to ground.

3.1.2 Receiver

The XTS 5000 transceiver has a dual-conversion superheterodyne receiver. Figure 3-4 illustrates the major receiver components:

• Receiver Front End

• Receiver Back End

RF Input

XTAL Filter

Harmonic

Filter

Antenna

Switch

RX Front End

Tuneable

Preselector

Filter

ABACUS III - RX Back End

LNA

CKO

Tuneable

Preselector

Filter

ADC

1st LO

Mixer

1st

RX_SSI_ DATA

to VOCON Board

6881094C31-D July 21, 2004

MAEPF-27278-A

Figure 3-4. Receiver Block Diagram

Page 44

3-6 Theory of Operation: Transceiver Board

3.1.2.1 Receiver Front End

NOTE: Refer to Table 8-1, “List of Transceiver Schematics and Board Overlays,” on page 8-1 for a

listing of receiver front end schematics.

The receiver front end tunes to the desired channel and down converts the RF signal to the first intermediate frequency (IF). Channel selection is by way of a tunable local oscillator, RXLO, from the FGU.

The receiver front end consists of a preselector filter, an RF amplifier, a second preselector, mixer, and an IF crystal filter. VHF, UHF Range 1and UHF Range 2 radios also contain a switchable attenuator between the antenna switch and the first preselector filter. The RF amplifier is a discrete RF transistor with associated circuitry. The mixer is a double-balanced, active mixer IC, coupled by transformers. The receiver (RX) local oscillator (LO) is provided by the FGU.

3.1.2.1.1 Preselector Filters

VHF, UHF Range 1, and UHF Range 2: The receiver front end uses two discrete, tunable, bandpass filters to achieve its required out-of-band rejection. The first preselector filter precedes the RF amplifier, while the second preselector filter follows the RF amplifier. DAC2, from the PCIC, is used to simultaneously tune both preselector filters by applying voltage to the varactors.

700–800 MHz: The receiver front end uses two, multi-layer, ceramic, tunable, bandpass filters to achieve its required out-of-band rejection. The first preselector filter, FL401, precedes the discrete RF amplifier. To tune the center frequency of the first filter, voltage from port DAC1 is applied to pin 3 of FL401. Pin 3 connects to the surface-mounted varactor diodes placed on each filter. A second identical filter, FL402, follows the discrete RF amplifier. The second filter is tuned by applying voltage from port DAC2 to pin 3 of FL402. Capacitors C409 and C410 are RF bypasses. Capacitors C400 and C411 are used to filter out noise from the DAC1 and DAC2 control lines.

3.1.2.1.2 LNA (Low-Noise Amplifier)

The XTS 5000 radio uses a discrete transistor for the low-noise amplifier (Q428 in VHF, Q430 in UHF Range 1, Q428 in UHF Range 2, and Q401 in 700–800 MHz). A feedback network between the collector and base improves stability and gain balance across the frequency band. Input and output LC networks match the LNA impedance to 50 ohms.

A diode limiter (D722 in VHF, D400 in UHF Range 1, D722 in UHF Range 2, and D401 in 700-800 MHz) protects the amplifier damage by strong input signals.

3.1.2.1.3 Mixer

The mixer (U45 in VHF, U470 in UHF Range 1, U451 in UHF Range 2 and U401 in 700–800 MHz) down-converts the received RF to the first intermediate frequency (IF). The IF is 44.85 MHz for VHF,

73.35 MHz for UHF Range 1 and UHF Range 2, and 109.65 MHz for 7/800 MHz. High-side LO injection is used for VHF and 700 MHz, low-side for the UHF bands and 800 MHz. Transformers are used as baluns to convert signals from singleended to balanced at pins MI, MIX, LO, and LOX. An output transformer converts the balanced signal at pins MO and MOX to a single-ended output.

3.1.2.1.4 IF Filter

The IF filter (FL451 in VHF, FL490 in UHF Range 1, FL451 in UHF Range 2, and FL403 in 700–800 MHz) is a leadless, surface-mount, 3-pole, quartz crystal filter. This narrow bandpass filter gives the radio its adjacent-channel and alternate-channel rejection performance.

Input and output LC networks match the filter impedance to 50 ohms. Exceptions are the VHF and UHF Range 2, where the output is matched to 50 ohms, but the input is not.

July 21, 2004 6881094C31-D

Page 45

Theory of Operation: Transceiver Board 3-7

3.1.2.2 Receiver Back End

The receiver back end, which consists of the Abacus III (AD9874 IF digitizing subsystem) IC and its associated circuitry, processes the down-converted IF signal to produce digital data for final processing by the VOCON DSP.

NOTE: Refer to Table 8-1, “List of Transceiver Schematics and Board Overlays,” on page 8-1 for a

listing of receiver back end schematics.

3.1.2.2.1 Abacus III IC U500

The AD9874 (Figure 3-5) is a general-purpose, IF subsystem that digitizes a low-level 10–300 MHz IF input with a bandwidth up to 270 kHz. The output of the Abacus III IC is SSI data to the VOCON.

The signal chain of the AD9874 consists of a low-noise amplifier, a mixer, a bandpass sigma-delta A/D converter, and a decimation filter with programmable decimation factor. An automatic gain control (AGC) circuit provides the AD9874 with 12 dB of continuous gain adjustment. The high dynamic range and inherent anti-aliasing provided by the bandpass sigma-delta converter allow the AD9874 to cope with blocking signals 80 dB stronger than the desired signal.

Auxiliary blocks include frequency synthesizers for the second LO and sampling clock LO, as well as an SPI port. The second LO uses a discrete external loop filter and VCO. The clock oscillator has an external loop filter and resonator.

MXON

IF2P

IFIN

FREF

AD9874

-16dB

LNA

Synth.

IOUTL

LOVCOand

LoopFilter

MXOP

LOP

LON

IF2N

Samp.Clock

Synthesizer

IOUTC

CLKVCOand

LoopFilter

GCP

ADC

......=13-26MHz

CLKP

CLKN

GCN

DAC AGC

Decimation

Filter

Voltage/

Current

Reference

VREFP

RREF

VREFN

Formatting/SSI

ControlLogic

SPI

Figure 3-5. Abacus III (AD9874) Functional Block Diagram (from data sheet)

DOUTA

DOUTB

CLKOUT

SYNCB

MAEPF-27412-O

VHF: Input signal RXIF is the 44.8 MHz IF from crystal filter FL451 in the receiver front end. Components C547 and L542 match the input impedance from 50 ohms at the RXIF to the Abacus input IFIN.

6881094C31-D July 21, 2004

Page 46

3-8 Theory of Operation: Transceiver Board

UHF Range 1: Input signal RXIF is 73.35 MHz. Components L547 and C547 match the input

impedance to 50 ohms.

UHF Range 2: Input signal RXIF is 73.35 MHz. L542, C515, and C547 match the Ababcus input to 50 Ohms.

700–800 MHz: Input signal RXIF is the 109.65 MHz IF from crystal filter FL403 in the receiver front end. Components L547 and C542 match the input impedance from 50 ohms at RXIF to approximately 420 ohms in parallel with a 1 pF capacitance at the Abacus input IFIN. Formatted SSI data is output to the VOCON board on ports FS, DOUTA, and CLKOUT.

3.1.2.2.2 Second Local Oscillator

The second LO is controlled by the Abacus LO synthesizer, which mixes with IFIN to produce a

2.25 MHz final IF. The external VCO consists of Q502 and its bias network and frequencydetermining elements. Signal FREF is the 16.8 MHz reference from the FGU. Darlington transistor Q501 with C550 and R501 form an active power-line filter.

VHF: The second LO frequency is 42.6 MHz by default, or 47.1 MHz in special cases as needed to avoid radio self-quieters. The loop filter is composed of R507, C558, C559, and C503.

UHF Range 1: The second LO frequency is 71.1 MHz by default or 75.6 MHz in special cases as needed to avoid radio self-quieters. The loop filter is composed of R551, C558, C559, R552, and C512.

UHF Range 2: The 2nd LO frequency is 71.1 Mhz. C558, R507, and C559 form the loop filter.

700–800 MHz: The second LO frequency is 107.4 MHz by default or 111.9 MHz in special cases as

needed to avoid radio self-quieters. The loop filter is composed of R507, C558, C559, R505, and C512.

3.1.2.2.3 Sampling Clock Oscillator

The Abacus sampling clock synthesizer operates at 18 MHz = 8 x 2.25 MHz. The VCO uses an internal transistor and external resonator. The resonator is composed of L503, C535, and D501.

VHF: The loop filter is composed of R514, C536, C570, and C571.

UHF Range 1 and 700–800 MHz: The loop filter is composed of R514, C570, and C571.

UHF Range 2: C503, C536, R415, C570, and C571 form the loop filter.

3.1.3 Transmitter

The transmitter takes modulated RF from the FGU and amplifies it to the radio's rated output power to produce the modulated transmitter carrier at the antenna.

NOTE: Refer to Table 8-1, “List of Transceiver Schematics and Board Overlays,” on page 8-1 for a

listing of transmitter-related schematics that will aid in the following discussion.

The transmitter (Figure 3-6 on page 3-9) consists of an RF driver IC that receives its input signal from the voltage-controlled oscillator (VCO) and a high-power output transistor. Transmitter power is controlled by a power-control IC (PCIC) that senses the output of a directional coupler and adjusts PA control voltages to maintain a constant power level. The signal passes through an antenna switch and harmonic filter to the antenna.

July 21, 2004 6881094C31-D

Page 47

Theory of Operation: Transceiver Board 3-9

Antenna

Driver

amplifier

ModulatedRF

fromFGU

3.1.3.1 Power Distribution

To minimize voltage drop to the power amplifiers, net RAWB+ connects to power module Q107 and the second stage of driver amplifier U102 through components having minimal series resistance— ferrite beads and chokes only. During receive, no RF or DC bias is applied, and leakage current through U102 and Q107 is less than 100 microamps. The first stage of U102 uses less than 50 mA and is supplied by TX7V, which is switched on during TX, and switched off during RX or whenever TXINH, the transmitter inhibit control line, is high.

Power

Directional

coupler

Summing

amplifier

RFIN

INT

amplifier

PCIC

Figure 3-6. Transmitter Block Diagram

Antenna

switch

Forwardandreversepowerdetectors Vd=m*sqrt(P)+b

Harmonic

filter

MAEPF-27408-O

VHF: At a transmitter power of 6 Watts, the radio consumes approximately 2000 mA. Bias TX7V is controlled by transistors Q101, Q102, Q103, and Q106.

UHF Range 1 and Range 2: At the rated transmitter power of 5 Watts, the radio consumes approximately 2000 mA. Bias TX7V is controlled by transistors Q101, Q102, Q103, and Q106.

700–800 MHz: At a transmitter power of 3 Watts, the radio consumes approximately 1200 mA. Bias TX7V is controlled by transistors Q101, Q102, Q103, and Q107.

3.1.3.2 Driver Amplifier

The driver amplifier IC (U102) contains two LDMOS FET amplifier stages and two internal resistor bias networks. Pin 16 is the RF input. Modulated RF from the FGU, at a level of +3 dBm ±2 dB, is coupled through a blocking capacitor to the gate of FET-1. An LC interstage matching network connects the first stage output VD1 to the second stage input G2. The RF output from the drain of FET-2 is pin 6 (RFOUT1). Gain control is provided by a voltage applied to pin 1 (VCNTRL). Typical output power is about +27 dBm (500 mW) with VCNTRL at 5.0 V.

VHF: L109 and C113 are the interstage matching network. Components C108–C111 and L106–L107 match the output impedance to maximize power transfer to Q107; capacitor C107 is a DC block.

UHF Range 2: L109 and C113 are the interstage matching network. Components C108–C111 and L105, L107, and L108 match the output impedance to maximize power transfer to Q107.

UHF Range 1 and 700–800 MHz: L109 and C116 are the interstage matching network. Components L105 and C110 match the output impedance to 50 ohms; capacitor C107 is a DC block.

6881094C31-D July 21, 2004

Page 48

3-10 Theory of Operation: Transceiver Board

3.1.3.3 Power Amplifier Transistor Q107

The power amplifier transistor, Q107, is an LDMOS FET housed in a high-power, surface-mount, ring package. To prevent thermal damage, it is essential that the heat sink of the power module be held in place against the radio chassis. The input impedance-matching network uses discrete inductors and capacitors. The low-pass output matching network uses both transmission lines and lumped LCs. Drain bias is applied through E101 and L101. Gain is dynamically controlled by adjusting the gate bias. The gate is insulated from the drain and source so that gate bias current is essentially zero.

VHF: The input and output impedance-matching networks consist of L112–L114 and C137–C140. Gate bias is applied through R105, R106, and L108.

UHF Range 2: The input and output impedance-matching networks consist of L113, L114 and C137, C139, C140, C149, and C151.

Gate bias is applied through R105, R106, and L720.

UHF Range 1 and 700–800 MHz: The input impedance-matching network is L106, L107, C108, and C109. A transmission-line structure and C137, C111, and C112 form the output-matching network. Gate bias applied through R106 and L110.

3.1.3.4 Directional Coupler

A directional coupler senses the transmitter forward and reverse power as control signals in the transmitter's automatic level control (ALC) loop. Isolated ports are terminated with external resistors.

VHF and UHF Range 1: The directional coupler consists of three embedded transmission lines.

UHF Range 1 and 700–800 MHz: The directional coupler is U101, a low-loss, bidirectional coupler.

3.1.3.5 Antenna Switch

NOTE: Refer to Table 8-1, “List of Transceiver Schematics and Board Overlays,” on page 8-1 for a

listing of schematics that will aid in the following discussion.

The antenna switch is a single-pole, double-throw, positive-intrinsic-negative (PIN) diode, transmit/ receive (T/R) antenna switch. Forward DC bias turn the diodes ON, reverse or zero bias turns them OFF.

VHF and UHF Range 2: PIN diodes D707 and D717 form a narrow-band, quarter-wave, T/R switch. In transmit mode, both diodes are forward-biased, and the signal goes from the transmitter to the antenna through the low resistance of the series PIN diode, while the low resistance of the shunt diode shorts the receiver. In receive mode, neither diode is biased and both behave as small-value capacitors, creating a high blocking impedance, in effect disconnecting the transmitter circuitry from the antenna.

UHF Range 1: Diodes D701 and D702 form a broadband switch. Inductors L706 and L707 resonate with the OFF diode parasitic capacitance to improve isolation.

700–800 MHz: PIN diodes D701 and D702 form a narrow-band, quarter-wave, T/R switch. When the PIN diodes are OFF, parallel inductors L706 and L707 resonate with the diode parasitic capacitance to increase isolation at the signal frequency.

The switch control circuit consists of transistors Q101, Q103, Q106, and associated resistors. The input signals are TXINH from the VOCON board and RXH (RX for VHF) from the PCIC. When TXINH is low and RXH (RX for VHF) is high, the switch is in the receive state. When TXINH and RXH (RX for VHF) are low, the switch is in its transmitter state. When TXINH is held high, the radio is inhibited from transmitting. This is a secure-module control feature.

July 21, 2004 6881094C31-D

Page 49

Theory of Operation: Transceiver Board 3-11

3.1.3.6 Harmonic Filter

The harmonic filter is a high-power, low-loss, low-pass filter. Its purpose is to suppress transmitter harmonics. The filter also improves receiver out-of-band rejection. Shield SH700 must be in place to achieve the required stop band rejection.

VHF: The harmonic filter uses discrete components. The pass band is up to 190 MHz, and the stop band is above 260 MHz.

UHF Range 1: The harmonic filter is discrete, the pass band is up to 470 MHz, and the stop band is above 760 MHz.

UHF Range 2: The harmonic filter uses discrete components. The pass band is up to 595 MHz, and the stop band is above 900 MHz.

700–800 MHz: The harmonic filter uses both discrete components and transmission lines. The pass band is up to 870 MHz, and the stop band is above 1500 MHz.

3.1.3.7 RF Detectors D101 and D102

Two Schottky diodes, D101 and D102, are used as forward- and reverse-power detectors. Forwardcoupled RF from the power amplifier, and reverse-coupled RF from the antenna are converted to DC voltages FWD and RVS. Detector output is a positive DC voltage, proportional to the amplitude of the RF signal at the input.

3.1.3.8 Summing Amplifier U106

This op-amp circuit is a non-inverting buffer. Signals FWD and RVS are summed and sent to the ALC input of the PCIC. When the antenna port is loaded with a low VSWR (voltage standing wave ratio), as in normal operation, RVS is far less than FWD, the amplifier output is a function of FWD, and the radio maintains a constant output power. Under high VSWR conditions, such as when the antenna is damaged or held near a large metal surface, the amplitude of RVS becomes a large fraction of FWD, the amplifier output increases proportionally, and the radio cuts back the transmitter power by up to 50%. This reduces high battery current into a large VSWR transmitter to extend battery life.

3.1.3.9 Power-Control IC (PCIC) U104

The PCIC, U104, contains all of the digital, and most of the analog, circuits needed to control the transmitter power amplifier. Host control is through a 3-wire, smart SPI interface. Pin descriptions are shown in Table 3-3.

Table 3-3. Power Control IC (U104) Pin Descriptions

Pin Name Description

1 RFIN Detector voltage input to ALC

2 T1 Test point

3 CI External capacitor for integrator time constant

4 INT Integrator output; control voltage to amplifiers

5 CJ External capacitor for PA rise and fall times

6, 7 VL, CL External capacitor for PA rise and fall times

8GND1 Ground

6881094C31-D July 21, 2004

Page 50

3-12 Theory of Operation: Transceiver Board

Table 3-3. Power Control IC (U104) Pin Descriptions (Continued)

Pin Name Description

9 F168 Reference clock input, 2.1 MHz

10, 13 QX, CQX External capacitor for voltage multiplier

11, 12 Q, CQ External capacitor for voltage multiplier

14 V10 Voltage multiplier output

15 VG Internal band-gap reference voltage

16 V45 Regulated 4.5 Vdc output

17 V5EXT Power supply input for internal voltage regulator

18 VAR2 Buffered D/A output

19 VLIM Test point for internal D/A No.2 voltage

20 VAR1 Buffered D/A output

21 RS Asynchronous reset input

22 NA Spare pin

23 RX RX/TX mode control-bit output

24 VAR3 Buffered D/A output

25 GND2 Ground

26 CLK SPI clock input

27 BPOS Power supply input

28 DATA SPI data input/output

29 CEX SPI chip select input

30 TEMP Temperature sensor input

31 RSET External resistor; used to set the temperature cutback rate

32 ANO Switched BPOS output

3.1.3.9.1 Power and Control

Since U104 is powered from switched B+, it makes its own regulated 4.5 Vdc to power the internal logic. The supply input is V5EXT at pin 17, and the output is V45 at pin 16. RX at pin 23 is the control signal to the antenna switch control circuit.

3.1.3.9.2 Voltage Multiplier

The PCIC contains an internal voltage multiplier. This multiplier produces signal V10 (pin 14), a 10-V supply for the PCIC D/A converters (DACs). This enables the DACs outputs to reach 8 V. The FREF signal is a 2.1 MHz clock used to switch the multiplier. The voltage multiplier is not used in either the VHF, UHF Range 1, UHF Range 2, or 700–800 MHz radio.

3.1.3.9.3 Automatic Level Control (ALC)

In TX mode, the PCIC disables the receiver, turns on the transmitter, and controls the TX power level. The automatic level control (ALC) circuit operates as follows:

July 21, 2004 6881094C31-D

Page 51

Theory of Operation: Transceiver Board 3-13

The power level is set by programming an internal DAC to a calibrated reference voltage. D/A settings for the power set points were determined during radio tuning and stored in EEPROM. An internal op-amp compares the D/A reference voltage to the detector voltage at pin 1(RFIN) (TP101) and produces an error signal output. This signal is buffered by another op-amp, configured as a lowpass filter, or integrator, to produce the INT output at pin 4 (TP104). This signal drives the base of voltage follower Q108.

Transistor Q108 supplies current to drive the gain control pins of amplifiers U102 and Q107. Resistors R105 and R106 determine the voltage ratio between U102 pin 2 (VCNTRL) and the Q107 gate. Transient response during key-up and key-down is controlled by the power amplifier rise and fall times. External capacitors at pins CI, CJ, and CL, along with internal programmable resistors, determine the ALC time constants.

3.1.3.9.4 Temperature Cut Back

The PCIC contains a temperature cut-back circuit to protect the power amplifier (PA) from thermal damage that might result from incorrect assembly of the radio. External sensor U103 is a linear temperature-to-voltage transducer, placed near the hottest spot in the radio: power module Q107. The output is a DC voltage at pin 2 (VOUT) proportional to the temperature at pin 3 (GND). VOUT is 750 mV at 25°C and increases by 10 mV/°C. The PCIC temperature cut-back threshold is programmed to correspond to 85 or 90°C. Above this threshold, the ALC gradually cuts back the transmitter until it is fully turned off at 125°C. The slope of cut-back versus temperature is set by external resistor R111. Diode D104 clamps TEMP to a voltage not much less than VG (pin 15), about

1.3 V, to improve the transient response of the cut-back circuit.

3.1.3.9.5 D/A Outputs

In RX mode, the PCIC shuts down the transmitter, turns on the receiver, and tunes the RX front-end pre-selector filters.

VHF: Signal VAR2 supplies the voltage used to tune both front-end preselector filters. The voltage range varies from 1.2 V to 2.4 V across the VHF band.

UHF Range 1: Signal VAR2 tunes both receiver preselector filters. Control voltage is in the 1 to 4 V range.

UHF Range 2: Signal VAR2 supplies the voltage used to tune both front-end preselector filters. The voltage

range varies from 1.2 V to 3.6 V.

700–800 MHz: Signals VAR1 and VAR2 are D/A outputs to the RX front-end preselector filters. Output voltage is in the range of about 1 to 4 V over the frequency band. In TX mode, VAR1 and VAR2 disconnect from the D/A and go to 0 Vdc, thus tuning the RX front-end filters out of band.

3.1.4 Frequency Generation Unit (FGU)

The frequency-generation function is performed by several ICs; multiple, discrete, voltage-controlled oscillators (VCOs); and associated circuitry. The reference oscillator provides a frequency standard to the fractional-N frequency synthesizer (FracN) IC, which controls the VCOs and VCO buffer IC (VCOBIC). The VCOBIC amplifies the VCO signal to the correct level for the next stage.

VHF: Two VCOs are employed—one to generate the first LO and the other to generate the transmitinjection signals.

UHF Range 1: Four VCOs are employed: two transmit and two receive.

UHF Range 2: Three VCOs are employed: one transmit and two receive.

6881094C31-D July 21, 2004

Page 52

3-14 Theory of Operation: Transceiver Board

700–800 MHz: Three VCOs generate the first LO and transmit-injection signals.

NOTE: Refer to Table 8-1, “List of Transceiver Schematics and Board Overlays,” on page 8-1 for a

listing of FGU-related schematics that will aid in the following discussion.

3.1.4.1 Reference Oscillator Y200

The radio's frequency stability and accuracy derive from the Voltage-Controlled TemperatureCompensated Crystal Oscillator (VCTCXO), Y200. This 16.8 MHz oscillator is controlled by the voltage from the WARP pin of the FracN (fractional-N frequency synthesizer) IC, U202, that can be programmed through a serial peripheral interface (SPI). The oscillator output at pin 3 is coupled through capacitor C234 to the FracN synthesizer reference oscillator input and through C236 (C237 for VHF and UHF Range 2) to the non-invertive input of the op-amp, U201.

Op-amp U201 buffers the 16.8 MHz output to the VOCON board. Components L205 and C214 (C213, L205, and C214 for VHF) form a low-pass filter to reduce harmonics of the 16.8 MHz.

The Digital-to-Analog Converter (DAC) IC, U203, and Switched Capacitors Filter (SCF) IC, FL200, form the interface between radio's DSP and the analog modulation input of the FracN IC.

3.1.4.2 Fractional-N Frequency Synthesizer (FracN) IC U202

The FracN IC, U202, is a mixed-mode, Motorola-proprietary, CMOS, fractional-N frequency synthesizer with built-in dual-port modulation. The XTS 5000 radio uses a low-voltage version of the device, sometimes called LVFracN, for compatibility with the 3 V logic used throughout the radio.

The FracN IC incorporates frequency division and comparison circuitry to keep the VCO signals stable. The FracN IC is controlled by the MCU through a serial bus. All of the synthesizer circuitry is enclosed in rigid metal cans on the transceiver board to reduce interference effects.

Separate power supply inputs are used for the various functional blocks on the IC. Inductors L203 and L204 provide isolation between supply pins 20 (AVDD) and 36 (DVDD) connected to Vdd3. Host control is through a three-wire, smart SPI interface (pins 7, 8, and 9) with a bi-directional data pin. FracN functions include frequency synthesis, reference clock generation, modulation control, voltage multiplication and filtering, and auxiliary logic outputs.

3.1.4.2.1 Synthesizer

Frequency synthesis functions include a dual-modulus prescaler, a phase detector, a programmable loop divider and its control logic, a charge pump, and a lock detector output. Fractional-N synthesizer IC principles of operation are covered in detail in the manufacturers' literature. No similar discussion will be attempted here.

3.1.4.2.2 Clocks

U202, pin 23 (XTAL1), is the 16.8 MHz reference oscillator input from the VCTCXO (Y200).

3.1.4.2.3 Modulation

To support many voice, data, and signaling protocols, XTS 5000 radios must modulate the transmitter carrier frequency over a wide audio frequency range, from less than 10 Hz up to more than 6 kHz. The FracN supports audio frequencies down to zero Hz by using dual-port modulation. The audio signal at pin 10 (MODIN) is internally divided into high- and low-frequency components, which modify both the synthesizer dividers and the external VCOs through signal MODOUT (pin 41). The IC is adjusted to achieve flat modulation frequency response during transmitter modulation balance calibration using a built-in modulation attenuator.

July 21, 2004 6881094C31-D

Page 53

Theory of Operation: Transceiver Board 3-15

3.1.4.2.4 Voltage Multiplier and Superfilter

Pins 12 (VMULT3) and 11 (VMULT4) together with diode arrays D201 and D202 and their associated capacitors form the voltage multiplier. The voltage multiplier generates 11.5 Vdc to supply the phase detector and charge-pump output stage at pin 47 (VCP).

The superfilter is an active filter that provides a low-noise supply for the VCOs and VCOBIC. The input is regulated 5 Vdc from Vdd5 at pin 30 (SFIN). The output is superfiltered voltage FSF at pin 28 (SFOUT).

The output from pin 15 (VMULT1) is used as a clock for the SCF IC, FL200.

3.1.4.3 Loop Filter

The components connected to pins 43 (IOUT) and 45 (IADAPT) form a 3rd-order, RC low-pass filter. Current from the charge-pump output, IOUT, is transformed to voltage VCTRL, which modulates the VCOs. Extra current is supplied by IADAPT for rapid phase-lock acquisition during frequency changes. The lock detector output pin 4 (LOCK) goes to a logic “1” to indicate when the phased-lock loop is in lock.

3.1.4.4 VCO Buffer IC (VCOBIC)

The VCOBIC (U302 for VHF radios or U300 for UHF Range 1 and 700–800 MHz radios) is an analog IC containing two NPN transistors for use as oscillators, an active-bias circuit, transmitter and receiver buffer amplifiers, and switching circuitry. The VCOBIC has three RF outputs:

• TX_OUT (pin 10)—the modulated transmitter carrier

• RX_OUT (pin 8)—the receiver first LO

• PRESC_OUT (pin 12)—connected to FracN pin 32 (PREIN) through a matching circuit

Transmit/receive control is a single 5.0 Vdc logic input, TRB_IN (pin 19). When TRB_IN is low, the receiver buffer is active and the transmitter circuits are disabled. The converse is also true.

VHF: The VCOs in VHF radios use the VCOBIC internal transistors and implement the active bias via resistors R304 and R305. Bias to TX_OUT is supplied through resistor R313. Components L309 and C316 form a matching circuit for the TX_OUT impedance. C319 acts as a DC block, and resistors R314, R315, and R316 attenuate an output signal to an optimum level for the PA.

L312 and C320 form a low-pass bias supply filter for the RX_OUT. L310 and C317 are the RX_OUT impedance-matching circuit. C322 is a DC block, and resistors R317 and R318 attenuate an output signal to an optimum level for the mixer IC.

An NPN/PNP-packaged transistor, Q301, together with the supporting components R308, R309, and R310, form the 3.3 Vdc-to-5 Vdc logic-level shifter between the AUX3 pin of the FracN IC, U202, and VCOBIC, U302.

UHF Range 1: For these radios, four VCOs are used: two transmit and two receive. Control-logic translation is done by level shifter Q310 and Q311, and wired-OR D320.

UHF Range 2: Two VCOs are used for receive and one for Transmit. The fractional N synthesizer selects the appropriate VCO by toggling auxilary lines 2,3, or 4. The selection of the TX VCO with auxilary line 4 also sets TRB_IN high.

700–800 MHz: These radios use three external, discrete, varactor-tuned, Colpitts VCOs based on transistors Q301, Q303, and Q308. Bias current to the VCOs is switched on and off by the transistors Q302, Q306, and Q309, which are controlled by FracN outputs AUX1, AUX2, and AUX4. Transistor Q304 is an additional transmit buffer amplifier reducing frequency pulling on the transmit VCO. An additional buffer is switched on and off by the transistor Q305. Bias to TX_OUT is supplied through resistor R307. Components L307 and C208 form a low-pass bias supply filter. The RX_OUT impedance is matched by a one-component match, coil L310.

6881094C31-D July 21, 2004

Page 54

3-16 Theory of Operation: VOCON Board

Transistors Q307 and Q310 form a 3.3 Vdc-to-5 Vdc logic-level shifter for the signal from the FracN AUX3 pin to the VCOBIC.

3.2 VOCON Board

This section provides a detailed circuit description of the ASTRO XTS 5000 VOCON board.

The VOCON board (Figure 3-7) is divided into the following sections:

• Controller and Memory

• Audio and Power

• Interface Support

3.2.1 Interconnections

The VOCON board interconnection diagram (see Figure 3-7) contains three functional blocks and five connector symbols.

INTERFACESUPPORT

26pins

Universal

40pins

ESDProtectionand

SideConnector

Circuitry

AUDIOANDPOWER

Audio

EEPOT

Pre-ampand

PowerAmp

GCAPII

andDiscrete

VoltageRegulators

ClocksandSide

ConnectorSupport

Figure 3-7. VOCON Board Interconnections

The functional blocks consist of the following:

ASIC

VOCON

Board

CONTROLLERANDMEMORY

FLASH

8MBytes

Dual-Core

Processor

MCUandDSP

SRAM

1MByte

Keypad 22pins

Display 22pins

Encryption

40pins

MAEPF-27413-A

• Controller and Memory: The Patriot (U401), the dual-core processor with the microcontroller

unit (MCU) and a digital signal processor (DSP), the SRAM (U403) and Flash (U402) memory devices.

• Audio and Power: The GCAP II (U501), a 5 Vdc linear regulator (U505), a 1.55 Vdc linear

regulator (NNTN4717 VOCON kit only), the audio pre-amplifier (U502), the audio power amplifier (U503), and the dual EEPOT (U509).

• Interface Support: The digital-support IC Flipper (U301), ESD protection circuitry, and side

connector interface circuitry.

July 21, 2004 6881094C31-D

Page 55

Theory of Operation: VOCON Board 3-17

NOTE: Refer to Table 8-2, “List of VOCON Schematics and Board Overlays,” on page 8-1 for a listing

of VOCON schematics that will aid in the following discussion.

3.2.1.1 Universal Connector J101

This is a 40-pin connector that mates with the universal flex on the housing. A majority of the lines on the connector are for user interface: emergency and side buttons (pin 14), monitor button (pin 17), secure/clear switch (pin 23), frequency switch (pins 24, 25, 26, and 27), volume knob (pin 31), and the three-position switch (pin 34). The LEDs on the universal flex are controlled through pins 20, 21, and 22. Connections to the external accessory connector, which include serial communication data lines, external audio, and option select lines for controlling audio modes, are present at pins 1 through 13. Switched battery voltage (B+SENSE) is provided on pin 32. Most of the pins at this connector have ESD protection devices and components.

3.2.1.2 Encryption Connector J701

This 40-pin connector provides the interface between the VOCON board and the encryption module. Two voltages are provided to the encryption board: UNSWB+ and SWB+. The SAP SSI lines, serial communication data lines, and general-purpose I/O lines from the Patriot IC are included in the interface to the encryption board. A number of jumpers are present on some of the lines so that the VOCON board configuration to the encryption board can be changed depending on the encryption type present.

3.2.1.3 Keypad Module Connector P107

This 22-pin connector mates the VOCON board to the keypad module flex used on Model II and III radios. The keypad module is provided with 5 volts (pins 7 and 8) for the LEDs. The LEDs are activated by the signal at pin 6, BL_EN. The row signal lines (pins 13, 14, 15, 16, 17, 18, and 19) and column signal lines (pins 1, 2, and 3) are all at the dual-core processor’s GPIO voltage.

3.2.1.4 RF Interface Connector P201

This is a 26-pin compression connector that interfaces between the VOCON board and the transceiver board. See Section 3.1.1.2 “ VOCON Connector P1,” on page 3-3 for a detailed description of the interface between the VOCON and transceiver boards through P201. Ground clip M202 is used on the bottom side of the VOCON board to contact the transceiver shield. This additional connection provides a consistent, common ground with the VOCON board and the radio chassis.

3.2.1.5 Display Module Connector P301

This 22-pin connector mates the VOCON board to the display module flex used on Model II and III radios. The NTN9564 VOCON kit has a parallel data interface to the display module. In this design, two voltages are provided to the display module: 1.8 V and 3 V. The display’s parallel data lines (pins 9, 10, 11, 12, 13, 14, 15, and 16), chip select line (pin 5), read/write line (pin 8), register select line (pin 7), and parallel/serial configuration line (pin 4) are at 1.8-V logic levels.

The NNTN4563 and NNTN4819 VOCON kits have a serial data interface to the display module. In this design, only 3 V is provided to the display module on pins 17 and 18. The display’s serial data line (pin 16), serial clock line (pin 15), chip select line (pin 5), and register select line (pin 7) are at 3 V logic levels. The NNTN4717 VOCON board has a serial data interface to the display module, and all the lines are at 2.9 V logic levels.

3.2.2 Controller and Memory

The controller and memory section contains the following components:

• Patriot IC (U401)

6881094C31-D July 21, 2004

Page 56

3-18 Theory of Operation: VOCON Board

• Static RAM (SRAM) IC (U403)

• Flash memory IC (U402)

The Patriot IC acts as both the microcontroller unit (MCU) and the digital signal processor (DSP) for the radio. The MCU controls receive/transmit frequencies, power levels, display programming, user interface (PTT, keypad, channel select, etc.), and programming of ICs, as well as other functions. The DSP performs voice encoding and decoding, audio filtering, volume control, PL/DPL encode and alert-tone generation, squelch control, and receiver/transmitter filtering, as well as other functions.

The Patriot IC executes a stored program located in the Flash memory device. The SRAM, a volatile device, is used as working memory and shares the address and data bus with the Flash memory device.

NOTE: Refer to Table 8-2, “List of VOCON Schematics and Board Overlays,” on page 8-1 for a listing

of VOCON schematics that will aid in the following discussion.

3.2.2.1 Patriot IC U401

The Patriot IC U401 is a dual-core processor that contains both a 32-bit microcontroller unit (MCU) and a 16-bit digital signal processor (DSP) in one IC package. It comes in a 256-pin, ball-grid array (BGA) package with 1mm pitch solder balls. On the NTN9564, NNTN4563, and NNTN4819 VOCON boards, the dual-core processor is supplied with two voltages: 1.8 V (E401) and 3 V (E402). The

1.8 V supply is used as the core voltage, as well as the interface voltage, to the memory devices and display (1.8 V display interface only for the NTN9564 VOCON board). Most of the pins on the Patriot IC operate from the 3 V supply.

The NNTN4717 kit uses a new dual-core processor which requires some different operating voltages. The 1.8 V supply is used as the interface to the memory devices, unchanged from the original processor. A 1.55 V supply is used for the core voltage and the clock amplifier module. The remaining pins of the processor use a 2.9 V supply.

NOTE: GPIO voltage for the NTN9564, NNTN4563, and NNTN4819 VOCON boards is 3.0 V.

NOTE: GPIO voltage for the NNTN4717 VOCON board is 2.9 V.

Two main clocks are provided to the Patriot IC. The CKIH pin (C452) is provided a 16.8 MHz sine wave. This is the most important clock since it is internally used to generate the clocks for both the MCU and DSP cores, as well as most of the peripherals. A 3 V peak-to-peak 32 kHz square wave (32 kHz test point) is generated by the Flipper IC U301 and supplied to the CKIL pin on the Patriot IC. While not as widely used as the 16.8 MHz clock, the 32 kHz clock is needed by some components in the Patriot including the reset circuitry.

3.2.2.1.1 Microcontroller Unit (MCU)

The MCU portion of the Patriot IC has 22.5k x 32 bits of internal RAM and 1k x 32 bits of internal ROM, which is used for the bootstrapping code. The MCU has several peripherals including an External Interface Module (EIM), the Multiple Queue Serial Peripheral Interface (MQSPI), two Universal Asynchronous Receiver/Transmitter (UART) modules, and the One-Wire Interface module. The MCU communicates internally to the DSP through the MCU/DSP Interface (MDI).

External Interface Module (EIM)

The External Interface Module (EIM) is the MCU interface to the SRAM U403 and Flash Memory U402, as well as the display (only for the NTN9564 VOCON kit). The EIM lines include 24 external address lines, 16 external bi-directional data lines, 6 chip selects lines, read/write line, and output enable line among others. All of the EIM lines operate at 1.8-V logic levels, and the EIM operates at the MCU clock speed.

July 21, 2004 6881094C31-D

Page 57

Theory of Operation: VOCON Board 3-19

Multiple Queue Serial Peripheral Interface (MQSPI)

The Multiple Queue Serial Peripheral Interface (MQSPI) is the MCUs programming interface to other ICs. The Patriot IC has two independent SPI busses, and each has its own clock line (test points SCKA and SCKB), data-out line (test points MOSIA and MOSIB), and data-in line (test points MISOA and MISOB). There are 10 SPI chip selects (SPICS) that are programmable to either SPI A, the transceiver board SPI bus, or to SPI B, the dedicated VOCON SPI bus.

The devices on the SPI A bus include the PCIC and FracN IC on the SPICS4 (R131), the Abacus III IC on SPICS5 (R126), an analog-to-digital converter (ADC) on SPICS6 (R133), and the serial EEPROM on SPICS7 (R132). The two SPI B chip selects are for the GCAP II IC U501 on SPICS2 (R539) and the Flipper IC U301 on SPICS3. On the NNTN4563, NNTN4819, and NNTN4717 VOCON boards, two additional SPI chip select lines are used for the display: SPICS0 (R442) and SPICS1 (U407 pin 14). All of the SPI module lines operate at GPIO voltage logic levels.

There are several devices on the transceiver board that only have one bi-directional SPI data line. Components U404, U405, and U406 are configurable by MCU GPIO pin TOUT13 (MISOA_SEL) to route the data line to the appropriate pin on the Patriot IC depending on which SPI device is being accessed.

Universal Asynchronous Receiver/Transmitter (UART)

The Patriot IC has two Universal Asynchronous Receiver/Transmitter (UART) modules. UART1 handles the RS232 lines while UART 2 is connected to the SB9600 lines. Each UART has a receive data line (URXD), a transmit data line (UTXD), and hardware flow control signals (RTS–request to send) and (CTS–clear to send). All UART lines operate at GPIO voltage logic levels. The translation to 5 V logic levels for the accessory side connector is discussed in the Flipper section.

One-Wire Interface

The MCU has a One-Wire Interface module that is used to communicate to a One-Wire device like a USB cable or a smart battery using the Dallas Semiconductor protocol. This module has one external pin, OWIRE_DAT (Q504 pin 2), and it uses a GPIO voltage logic level.

3.2.2.1.2 Digital Signal Processor (DSP)

The DSP portion of the Patriot IC has 84k x 24 bits of program RAM and 62k x 16 bits of data RAM. The DSP has its own set of peripherals including the Baseband Interface Port (BBP), the DSP Timer module, and the Serial Audio CODEC Port (SAP). Additionally, the DSP shares some peripherals with the MCU, including the USB interface and the General Purpose Input/Output module (GPIO).

Baseband Interface Port (BBP)

The Baseband Interface Port (BBP) module is the DSP’s serial synchronous interface (SSI) to the transceiver board. The BBP has independent sections for the receiver and the transmitter. The receiver BBP pins include the receive data pin SRDB (R121), the receive clock signal pin SC0B (R124), and the receive frame synchronization (sync) signal pin SC1B (R123). The transmitter's BBP pins include the transmit data pin STDB (R127), the transmit clock signal pin SCKB (R125), and the transmit frame sync signal pin SC2B (R119). All BBP lines use GPIO voltage logic levels.

DSP Timer Module

While the BBP receive clock and frame sync signals are supplied by the Abacus III IC from the transceiver board, the BBP transmit clock and frame sync signals are generated by the DSP Timer. The BBP receive clock, connected to the DSP Timer input pin T10, is reference used to generate the BBP transmit clock and frame sync signals. These two signals, along with the BBP transmit data signal, are connected to the DAC on the transceiver board.

6881094C31-D July 21, 2004

Page 58

3-20 Theory of Operation: VOCON Board

Serial Audio CODEC Port (SAP)

The Serial Audio CODEC Port (SAP) module is the DSP’s serial synchronous interface (SSI) to the audio CODEC on the GCAP II IC. The SAP also interfaces with the encryption module.

The SAP interface consists of four signals including the SAP clock line pin SCKA (component R405), the SAP frame sync line pin SC2A (component R406), the SAP receive data line pin SRDA (component R402), and the transmit data line pin STDA (component R403). On the NTN9564, NNTN4563, and NNTN4819 VOCON boards, the SAP clock is generated by the Flipper IC U301, and is a 520 kHz, 3 V peak-to-peak square wave. The SAP frame sync signal is also generated by the Flipper IC, and is an 8 kHz, 3 V peak-to-peak square wave.

On the NNTN4717 VOCON board, the SAP clock is generated by the dual-core processor U401, and is a 256 kHz, 2.9 V peak-to-peak square wave. The SAP frame sync signal is generated by the dual-core processor U401, and is an 8 kHz, 2.9 V peak-to-peak square wave.

Universal Serial Bus (USB)

The Patriot IC USB peripheral, shared by the MCU and the DSP, provides the required buffering and protocol to communicate on the Universal Serial Bus. The Patriot IC supports USB slave functionality.

For receive data, the USB differentially decoded data comes from the Flipper IC URXD_RTS pin into the Patriot URTS1 pin, while the single-ended USB data positive signal goes to pin PA2_USB_VPIN, and the single-ended USB data minus signal goes to pin URXD1. The two data lines are used to detect the single-ended zero state.

For transmit data, the USB data comes out of the Patriot IC UTXD1 pin and goes to the Flipper IC TXD_USB_VPO pin. The USB transmit single-ended zero signal is generated from the Patriot IC PC0_USB_VMOUT pin.

General-Purpose Input/Output (GPIO) Module

The General-Purpose Input/Output (GPIO) module is shared by the MCU and the DSP. This module consists of four 16-pin bi-directional ports and a 15 pin bi-directional port. While some of the pins on these ports are being used for other functions (UART, SPI, SAP, BBP, and Interrupt pins), the remaining pins can be programmed to become GPIOs that can be used by either the DSP or the MCU. Each GPIO pin has up to 8 alternate output functions and up to 4 alternate input functions. This allows for the GPIO pins to be routed internally to pertinent Patriot IC modules. Additionally, the GPIO module adds selectable edge-triggered or level-sensitive interrupt functionality to the GPIO pins. Some examples of GPIO pins include the Audio PA control signals (EXT_SPKR_SEL, AUDIO_PA_EN, and AUDIO_MODE_SEL), the EEPOT control signals (EEPOT_INC*, EEPOT_U_D*, EEPOT_CS*, and EEPOT_CS_EXT*), and the LED control signals (RED_LED and GREEN_LED).

3.2.2.2 Static RAM (SRAM) U403

The static RAM (SRAM) IC U403 is an asynchronous, 1 MB, CMOS device that is capable of 70 ns access speed. It is supplied with 1.8 volts. The SRAM has its 19 address lines and 16 data lines connected to the EIM of the Patriot IC through the Address(23:0) and Data(15:0) busses.

The SRAM has an active-high chip select CS2 that is tied directly to the 1.8 V supply and an activelow chip select CS1 that is connected to the EIM CS2_N pin (test point CS2). When the SRAM CS1 pin is not asserted, the SRAM is in standby mode, which reduces current consumption.

Two other control signals from the EIM that change the mode of the SRAM are the read/write signal, R/W, and the output enable signal, OE. The R/W of the EIM is connected to the SRAM EN_WE pin (test point R_W), while the OE signal from the EIM is connected to the SRAM EN_OE pin. The SRAM is in read mode when the EN_WE pin is not asserted and the EN_OE pin is asserted. The SRAM is in write mode when the EN_WE pin is asserted, regardless of the state of the EN_OE pin.

July 21, 2004 6881094C31-D

Page 59

Theory of Operation: VOCON Board 3-21

The other SRAM pins are the lower-byte enable pin LB and the upper-byte enable pin UB. These pins are used to determine which byte (LB controls data lines 0-7 and UB controls data lines 8-15) is being used when there is a read or a write request from the Patriot IC. The LB pin is controlled by the EIM EB1_N signal, while the UP pin is controlled by the EB0_N signal.

3.2.2.3 FLASH Memory U402

The Flash memory IC is an 8 MB CMOS device with simultaneous read/write or simultaneous read/ erase operation capabilities with 70 ns access speed. It is supplied with 1.8 volts. The Flash memory has its 22 address lines and 16 data lines connected to the EIM of the Patriot IC through the Address(23:0) and Data(15:0) busses. The Flash memory contains host firmware, DSP firmware, and codeplug data with the exception of the tuning values that reside on the transceiver board's serial EEPROM. The Flash memory IC is not field repairable.

The RESET_OUT of the Patriot IC is at a GPIO voltage logic level. Components D401 and R401 are used to convert the voltage down to a 1.8 V logic level, and this 1.8 V reset signal is fed to the Flash RESET pin. When this pin is asserted (active low logic), the Flash is in reset mode. In this mode, the internal circuitry powers down, and the outputs become high-impedance connections.

The Flash active-low chip select pin, EN_CE, is connected to the active-low CS0_N pin (CS0 test point) of the EIM. When the EN_CE is not asserted, the Flash is in standby mode, which reduces current consumption.

Several other active-low control pins determine what mode the Flash memory is in: the address valid pin ADV (ADV test point) that is connected to the EIM LBA_N signal, the output enable pin EN_OE that is connected to the EIM OE_N signal, and the write enable pin EN_WE that is connected to the EIM EB1_N signal. For read mode, the ADV and EN_OE pins are asserted while the EN_WE pin is not asserted. When the EN_WE is asserted and the EN_OE pin is unasserted, the Flash operates in the write mode.

Figure 3-8 illustrates the EIM and memory ICs block diagram.

RESET_OUT

LBA_N

CS0_N

EB1_N

OE_N

Voltage

Translator

CSO

A(23:1)

Dual-Core

Processor

U401

A(23:0)

D(15:0)

EB0_N

CS2_N

RW_N

A(19:1)

CS2

R_W

RESET

ADV

EN_CE

EN_WE

EN_OE

A(22:0)

D(15:0)

A(18:0)

D(15:0)

EN_OE

CS1

EN_WE

Flash U402

SRAM

U403

MAEPF-27414-A

Figure 3-8. Patriot EIM and Memory Block Diagram

6881094C31-D July 21, 2004

Page 60

3-22 Theory of Operation: VOCON Board

3.2.3 Audio and Power

The audio and power section contains the following components:

• GCAP II IC U501

• 5 V regulator U505

• Audio pre-amplifier U502

• Audio power amplifier U503

• EEPOT U509

• 1.55 V regulator (NNTN4717 VOCON board only)

The GCAP II IC contains a CODEC, amplification, filtering, and multiplexing capability for receive and transmit audio, voltage regulators, an analog-to-digital converter (ADC), and a real-time clock (RTC). The GCAP II IC is programmed by the Patriot IC.

The audio pre-amplifier and the audio power amplifier condition the received audio signal before being routed to the speaker. The dual EEPOT sets the gain of the microphone signal. These devices are programmed by the Patriot IC.

NOTE: Refer to Table 8-2, “List of VOCON Schematics and Board Overlays,” on page 8-1 for a listing

of audio and power-related schematics that will aid in the following discussion.

3.2.3.1 GCAP II IC U501

The GCAP II IC is a mixed-signal (analog and digital) IC that provides control, audio, and voltage regulation functionality. It comes in a 100-pin, ball-grid array (BGA) package with 0.8 mm pitch solder balls. The GCAP II IC is supplied with switched battery voltage GCAP_B+ (R581).

3.2.3.1.1 Voltage Regulation

The GCAP II IC contains several voltage regulators that are used in the design of the VOCON board: VSW1, VSW2, and V2. The VSW1 regulator is a programmable switching regulator that uses the switched battery voltage as its input on pin PSRC1. The output voltage of VSW1 (R502) is programmable by the Patriot IC U401 through the SPI bus. The initial output of VSW1 is 3.2 volts, which is then programmed to 3.8 volts. The VSW1 voltage is supplied to the RF Interface connector P201 pin 15 and to the input pins of the VSW2 and V2 regulators.

The VSW2 regulator is a SPI programmable switching regulator that uses VSW1 as its input on pin PSRC2. The initial output of VSW2 (R501) is 2.2 volts, which is then programmed to 1.875 volts (referred to as 1.8 volts throughout this document). The VSW2 voltage is supplied to the Patriot IC (core voltage and the EIM voltage), the SRAM U403, the Flash memory U402, and the display module connector J301 (1.8 V display interface only for the NTN9564 VOCON kit).

The V2 regulator is a SPI programmable linear regulator that uses VSW1 as its input on pin VIN2. The initial output of V2 (R560) is 2.775 volts, which is then programmed to 3 volts for the NTN9564, NNTN4563, and NNTN4819 VOCON boards, and 2.9 volts for the NNTN4717 VOCON board. The V2 voltage is supplied to the Patriot IC (I/O ring - SPI, BBP, SAP, UART, GPIO, etc.), the Flipper IC U301, the EEPOT U509, the display module connector J301, and the many discrete components that interface with the Patriot IC and the Flipper IC.

July 21, 2004 6881094C31-D

Page 61

Theory of Operation: VOCON Board 3-23

3.2.3.1.2 MCU Interface

The GCAP II IC has a four-wire, SPI connection to the Patriot IC (SPI B). The SPI B clock is connected to the SPI_CLK pin (test point SCKB). The SPI B MOSI line is connected to the SPI_DW pin (test point MOSIB). The SPI B MISO line is connected to the SPI_DR pin (test point MISOB). The GCAP SPI B chip-select signal is connected to the CE pin (R539). Through this interface, the Patriot IC can program the voltage regulators, the CODEC, the transmit and receive audio filters and amplifiers, as well as read information from the ADC and the real-time clock.

The GCAP II IC has an 8-bit ADC with general-purpose six channels and four voltage-monitoring channels. The six general-purpose analog-to-digital (A/D) channels are assigned to monitor volume (AD5); the three-position toggle switch from the universal connector J101 (AD1); the emergency, monitor, and side buttons (AD0); the battery status line (AD2); the board type indicator (AD3); and the board identification voltage (AD4). Battery voltage is also monitored by the ADC. The Patriot IC activates and reads the A/D values through the SPI bus.

The real-time clock (RTC) module of the GCAP II IC consists of several counters to determine elapsed time. The Patriot IC reads the RTC registers through the SPI bus. The RTC is supplied with voltage from a backup lithium rechargeable battery (LI_CELL) and a 32.768 kHz clock signal from the Flipper IC to the GCAP II IC XTAL1 pin.

3.2.3.1.3 Audio Circuitry

A 13-bit CODEC, internal to the GCAP II IC and programmable by the Patriot IC through the SPI bus, converts microphone audio into a digital bit stream for processing by the DSP. The CODEC also converts receive audio data that was processed by the DSP into an analog audio signal for amplification to a speaker. The CODEC interfaces to the DSP through the 4-wire SAP bus. The CODEC clock, which is 520 kHz (for the NTN9564, NNTN4563, and NNTN4819 VOCON boards) or 256 kHz (for the NNTN4717 VOCON board) is supplied to the DCLK pin. The CODEC 8 kHz CODEC frame synchronization signal is supplied to the FSYNC pin. The CODEC transmit data signal is on the TX pin, while the CODEC receive data signal is on the RX pin. For the CODEC to operate with those clock and frame sync signals, a 13 MHz clock (R302), generated by the Flipper IC, is supplied to the GCAP CLK_IN pin.

The GCAP II IC contains internal amplification, filtering, and multiplexing functionality for both receive and transmit audio. These functions are Patriot IC-programmable through the SPI bus. The input for the internal microphone audio (R540) is the MICIN_NEG pin, while the input for the external microphone audio (R566) is the AUX_MIC_NEG pin. The output for the speaker audio is the EXTOUT pin (C533).

3.2.3.2 5 V Regulator U505

The 5 V regulator uses UNSW_B+ as its input voltage. The Flipper IC WDI line controls the regulator's SHUTDOWN pin. The 5 V supply (R503) is used by the Flipper IC U301, audio preamplifier U502, microphone bias circuitry (R531 and R563), Flipper IC protection diodes, bidirectional voltage translators, battery data-line isolation circuitry, and ESD protection circuitry.

3.2.3.3 1.55 V Regulator

The 1.55 V regulator is made up of the following components: U508, Q503, R598, R507, R508, R509, R512, R599, C576, C565, C512, C580, and C567 (check the NNTN4717 VOCON board BOM for part values and placement). This circuit uses VSW1 to bias the regulator while VSW2 sources the current. This voltage is used by the dual-core processor U401 for its core voltage and clock amplifier. The 1.55 V regulator is only instantiated on the NNTN4717 VOCON board.

6881094C31-D July 21, 2004

Page 62

3-24 Theory of Operation: VOCON Board

3.2.3.4 Audio Pre-Amplifier U502

The audio pre-amplifier U502 is a single-package, 5-pin, op-amp supplied with 5 volts. This pre-amp stage provides a fixed gain, which is selected by the components R551 and R537. The input (U502 pin 4) of stage is the EXTOUT pin from the GCAP II IC, while the output (U502 pin 1) of this stage goes to the audio PA.

3.2.3.5 Audio Power Amplifier U503

The audio power amplifier (PA) U503 consists of two BTL amplifiers, complementary outputs, and control logic. Each of the amplifiers has a fixed gain—the external audio PA gain is set by components R553 and R554, while the internal audio PA gain is set by components R549 and R550. The MODE pin (U503 pin 4) voltage determines the operation of the amplifier. That voltage is controlled by the Patriot IC GPIO lines AUDIO_PA_EN (to Q505) and AUDIO_MODE_SEL (to Q506). Table 3-4 describes how the Patriot IC GPIO lines configure the audio PA.

Table 3-4. Audio PA Status

AUDIO_PA_EN AUDIO_MODE_SEL Audio PA Status MODE Voltage

0 0 Standby V_Mode > 7 V

0 1 Mute 1.5 V < V_Mode < 6 V

1 0 On V_Mode < 0.5 V

1 1 On V_Mode < 0.5 V

The SELECT pin (U503 pin 6) is used to switch the audio path between internal and external speaker. The voltage on that pin is determined by the EXT_SPKR_SEL line from the Patriot IC and the Q505 transistor. When the voltage at the SELECT pin is high (B+), the audio is routed to the internal speaker lines. When the voltage at the SELECT pin is low (V_select < 0.5V), the audio is routed to the external speaker lines.

3.2.3.6 EEPOT U509

The EEPOT is a digitally programmable potentiometer with 256 taps and a total resistance of 50 kohms. This 10-pin package contains two independent potentiometers, one for each microphone line. The EEPOT resistance values are programmed by the Patriot IC GPIOs EEPOT_INC* (U509 pin 9) and EEPOT_U_D* (U509 pin 2). The EEPOT_INC* signal increments the resistance value up or down, which depends on the EEPOT_U_D* signal. The EEPOT_CS* line (U509 pin 10) is asserted when the internal microphone gain is being changed. Similarly, the EEPOT_CS_XST* (U509 pin 1) is asserted for external microphone gain changes. The EEPOT is supplied with voltage from the GCAP II V2 regulator.

3.2.4 Interface Support

The interface support section consists of the following:

• Flipper IC U301

• ESD protection circuitry

• Universal connector interface circuitry

July 21, 2004 6881094C31-D

Page 63

Theory of Operation: VOCON Board 3-25

The Flipper IC contains a USB transceiver, switching logic between RS232 and boot data path, OneWire side connector support, and several clock generators. The Flipper IC is programmed by the Patriot IC.

ESD protection devices include zener diodes and low-capacitance ESD suppressors.

Side connector interface circuitry includes current-limiting resistors and noise-suppressing shunt capacitors.

3.2.4.1 Flipper IC U301

See Figure 8-64, “NTN9564B VOCON Flipper Circuit,” on page 8-99 for schematic details of the

following discussion.

The Flipper IC U301 is an application-specific, integrated circuit (ASIC) device designed for the XTSradio product line. The Flipper IC is contained in a 64-pin µBGA package with 0.8 mm pitch solder balls. The Flipper IC is supplied with 5 volts and the processor’s GPIO voltage, and it uses the

16.8 MHz clock (C307) as its master clock. The Flipper IC is programmable by the Patriot IC through the SPI bus.

The Flipper IC supports many functions including the radio side connector interface, bi-directional logic level translation, boot data path control, USB transceiver, One-Wire option detect support, watchdog timer, 32 kHz oscillator with CMOS output, 13 MHz reference generation for the GCAP II IC, and SSI clock and frame sync generator.

3.2.4.1.1 Side Connector Interface, Logic Level Translation, and Boot Data Path Control

The Flipper IC facilitates the interface to the radio's side connector. Some of the side connector lines are at 5 V logic levels, so the Flipper IC converts those lines to GPIO voltage logic levels to interface to the Patriot IC, as well as the encryption module. These lines include the SB9600 bus busy line LH_BUSY (TP207), the RS 232 CTS (TP208) and RTS (TP209) lines, the RS232 data-out line (TP210), and the RS232 data-in line (TP211). The SB9600 data line uses an external, bi-directional, voltage translation circuit that includes Q303, D301, R325, R326, and R327.

Another function that the Flipper IC provides with these lines is boot data path control. The boot data path is as follows: boot data-in is multiplexed onto the RS232 data-out line while the boot data-out is multiplexed with the SB9600 data line. This alternate data path is used only to Flash code into a radio for the first time. The Patriot IC, through the SPI bus, controls this feature.

3.2.4.1.2 USB Transceiver

The USB transceiver, internal to the Flipper IC, is capable of transmitting and receiving serial data at a rate of 12 megabits per second. The differential USB data comes from the side connector, through the 22-ohm resistors R252 and R253 and the isolation switch Q301, and then to the USB_DPLUS and USB_DMINUS pins on the Flipper IC. The USB receive interface from the Flipper IC to the Patriot IC is as follows: USB_DPLUS routed to USB_VPI, USB_DMINUS routed to USB_VMI_RXD, and the differential decoded data is output at the URXD_RTS pin and goes to the Patriot IC URTS1 pin.

The USB transmitter is enabled when the USB_SUSP and USB_TXENAB signals are both driven low by the Patriot IC. The single-ended data is output from the Patriot IC on the UTXD1 pin and goes to the Flipper TXD_USB_VPO pin. The data is driven out differentially on the USB_DPLUS and USB_DMINUS pins, which go to the side connector. The Patriot IC sends the single-ended zero signal from pin PC0_USB_VMOUT to the Flipper IC USB_FSEZ pin.

6881094C31-D July 21, 2004

Page 64

3-26 Theory of Operation: VOCON Board

When a USB cable is detected, the USB_DIS pin (Q302 pin 2) goes high. This controls the isolation switch Q301 so that the data that is on those lines are routed to the USB transceiver. If a USB cable is not detected, the USB_DIS pin is low and the USB transceiver on the Flipper IC is isolated from the side connector. This isolation is done primarily because the RS232 data lines are 5 V lines, so the switch protects the transceiver since it operates at a lower voltage, and the USB data lines to the side connector also act as the RS232 lines.

On the NNTN4717 VOCON board, the USB transceiver on the Flipper IC is not used. Instead, a discrete USB transceiver U310 is used. This transceiver is provided with 5 V and 2.9 V. The 5 V powers an internal 3.3 V voltage regulator on the transceiver, which is used as the voltage for the USB data pins D+ an D- as well as the VPU pin. The 2.9 V is used by the remaining pins as they interface to the dual-core processor U401.

3.2.4.1.3 One-Wire Support

New options and accessories that attach to the side connector are identified by the Patriot IC using the One-Wire protocol. The Option Select 2 pin on the side connector also serves as the One-Wire data pin (R218). This signal is connected to the ONE_WIRE_OPT pin. This pin is connected to the Patriot IC One-Wire bus ONE_WIRE_UP through an internal isolation switch controlled by a Patriot IC GPIO line to the Flipper IC ONE_WIRE_EN_X pin. This isolation is needed to prevent possible contention on the One-Wire bus when a smart battery is attached to the radio.

These new accessories are to ground pin 10, CTS (TP208), of the side connector. When this occurs, the Flipper IC pin KVL_USB_DET_X is asserted and the Patriot IC detects the change. The Patriot IC then asserts the ONE_WIRE_EN_X pin on the Flipper IC to connect the side connector One-Wire line to the Patriot IC One-Wire bus. In the case of the USB cable, the Patriot IC reads the One-Wire data from the cable and, upon determining that a USB cable is attached, programs the Flipper IC for USB mode.

3.2.4.1.4 Watchdog Timer

The Flipper IC monitors the position of the radio's On/Off switch on the BP_SEN_X pin, and that signal is located on Q508 pin 3. If the voltage on pin 3 is ground, then the radio is turned on. If the voltage on pin 3 is 3 volts, then the radio is off. When the radio is turned off, a counter inside the Flipper IC begins incrementing. That counter can be refreshed by the Patriot IC through the SPI bus. This is done so that the software has enough time to complete its tasks before the power is taken away from the Patriot IC. If the counter is not refreshed by the time the count is complete, the Flipper IC pin WD_OUT goes low, which shuts down the GCAP II voltage regulators. During normal radio operation, WD_OUT should be high (V2 regulated voltage).

3.2.4.1.5 32 kHz Oscillator and CMOS output

The 32 kHz oscillator circuitry uses a separate voltage supply pin (VDD3_XTL) than the other 3-V portions of the Flipper IC. This 32 kHz clock is used by the GCAP II RTC module to keep track of time. The VDD3_XTS pin is supplied with the backup lithium (Li) rechargeable battery voltage LI_CELL. The oscillator circuitry is internal to the Flipper IC, and the 32.768 kHz crystal Y301 and additional load capacitors C308 and C309 are located next to the IC.

The output of the 32 kHz oscillator is an LI_CELL voltage (approximately 3 volts peak-to-peak),

32.768 kHz square wave on pin REF32_OUT. This clock goes to two destinations: the Patriot IC CKIL pin (32 kHz test point) as a square wave and the GCAP II IC XTAL1 pin (C306) as a sine wave. Components C306 and C313 are used to filter the square wave into a sine wave before the signal goes to the GCAP II IC.

July 21, 2004 6881094C31-D

Page 65

Theory of Operation: VOCON Board 3-27

3.2.4.1.6 13 MHz Reference Generation for GCAP II

The 13 MHz reference is required by the GCAP II IC for the CODEC time base and the SSI clock generator module internal to the Flipper IC. A phase locked loop (PLL) is used to generate the 13 MHz using the 16.8 MHz clock, which is provided to the Flipper IC REF_16_IN pin (C307). An external RC loop filter network, consisting of R301, C301, and C302, is connected to the PLL_LFT pin.

The 13 MHz reference output pin, REF_13_OUT, is conditioned by the RC network of R302 and C303. The signal at REF_13_OUT is a 3-V peak-to-peak square wave, and the RC filter produces a lower-level triangle wave that is suitable for the GCAP II IC.

The 13 MHz reference is disabled as the Flipper IC powers up. The 13 MHz reference is enabled by the Patriot IC through the SPI bus, and, during normal radio operation, this signal should be present.

3.2.4.1.7 SSI Clock and Frame Sync Generator

The Flipper IC generates the SSI clock and frame sync signals for the SAP bus used by the Patriot IC, GCAP II IC, and encryption module. These signals are generated from the 13 MHz reference. The SSI clock output pin is labeled SSI_CLK, and the frequency is 520 kHz. The SSI frame sync output pin is FRSYNC, and the frequency is 8 kHz. These signals are not active when the Flipper IC comes out of reset, so they are programmed by the Patriot IC through the SPI bus.

The Flipper IC provides four 16-bit TDM slots per frame on the SAP bus. The first slot (slot 0) begins immediately after the frame sync pulse, and this slot is used by the GCAP II IC. The SEC_SS_X pin is active for the first 8 bits of the second slot (slot 1). This signal is used by the encryption module to synchronize its input and output to the SSI frame. The other two slots are reserved for possible design additions in the future.

On the NNTN4717 VOCON board, the Flipper IC is not programmed to generate the SSI clock, SSI frame sync signal, or the secure slave select signal (SEC_SS_X); the dual-core processor U401 generates these signals.

3.2.4.2 ESD Protection Circuitry

See Figure 8-63, “NTN9564B VOCON Universal Connector Circuit,” on page 8-98 for schematic

details of the following discussion.

Several components on the VOCON board protect the circuitry from ESD. The side connector signal lines have ESD protection components on them since they are exposed. These protection components include:

• 5.6-V zeners VR205, VR206, VR220, and VR221 on the SB9600 lines, RS232 lines, microphone lines, and option-select lines

• 12-V zeners VR201, VR203, and VR209 on the internal and external speaker audio lines

• 13-V zener VR204 on the OPTB+ line

• Low-capacitance ESD suppressors D203, D204, D205, and D206 on audio lines, USB data lines, and option-select lines

There were also several protection diodes on lines connected to the Flipper IC. These include D302, D303, D304, D305, D306, D307, and D308. ESD protection for the battery status line is provided by a 5.6-V zener VR501.

6881094C31-D July 21, 2004

Page 66

3-28 Theory of Operation: VOCON Board

3.2.4.3 Universal Connector Interface Circuitry

See Figure 8-63, “NTN9564B VOCON Universal Connector Circuit,” on page 8-98 for schematic

details of the following discussion.

Some important components on the universal connector interface are two op-amps. The first opamp, U201, is used as a comparator for the option-select 1 line. The comparator threshold is determined by the voltage-divider network of R257 and R258. Similarly, the other op-amp, U202, is used as a comparator for the option-select 2 line. The comparator threshold is determined by the voltage-divider network of R240 and R243. The remaining components consist of current-limiting serial resistors and noise-suppressing shunt capacitors.

3.2.4.3.1 Universal Connector and Option Selects

The universal connector is located on the side of the radio. It is the external port or interface to the outside and is used for programming and interfacing to external accessories. The universal connector connects to the VOCON board at connector J101 via a flex circuit that is routed inside the external housing. Connections to the universal connector and J101 on the VOCON board are shown in Figure 3-9 on page 3-28 and Figure 3-10 on page 3-28.

OPT_SEL1

EXT_MIC

OPT_SEL2

RTS

SB9600_BUSY

RS232_DOUT/USB_D+

SB9600_DATA/KEYFAIL

EXT_SPKR

OPTB+/VPP

SPKR_COM

GND

CTS

RS232_DIN/USB_D-

MAEPF-27415-O

Figure 3-9. Universal (Side) Connector

Signal Name J101-Pin #

OPT_SEL1

EXT_SPKR

EXT_MIC

OPTB+/VPP

OPT_SEL2

SPKR_COM

RTS GND

SB9600_BUSY

CTS

RS232_DOUT/USB_D+

SB9600_DATA/KEYFAIL

RS232_DIN/USB_D-

13 12

J101

7 5

3 8 1 6 2 4

37 35

-----------------------------------

135

246

MAEPF-27452-O

Figure 3-10. VOCON Board Connector—J101

July 21, 2004 6881094C31-D

Page 67

Theory of Operation: VOCON Board 3-29

Most of the signals are extensions of circuits described in other areas of this manual. However, there are two option select pins (see Table 3-5) used to configure special modes: Option Select 1 and Option Select 2. These pins are controlled by accessories connected to the universal connector.

Table 3-5 outlines their functions as defined at the universal connector. In the case of the XTS

Vehicular Adapter (XTVA), Option Select 1 pin is connected to Option Select 2 pin by a diode internal to the XTVA.

Table 3-5. Option-Select Functions

Function

External PTT 00

No Function (Normal) 11

Man Down 10

External Speaker 01

XTVA Diode cathode Diode anode

3.2.4.4 Display Module

An optional, integral, 96 pixels by 64 pixels, bit-mapped, liquid-crystal display (LCD) module is available with either a 3 x 2 keypad with a navigational button (Model II radios) or 3 x 6 keypad with a navigational button (Model III radios). The display module is connected to the VOCON board through flex connector J301. The display module uses chip-on-film technology and is not field repairable.

3.2.4.4.1 7285726C01 Display Module

NOTE: The NTN9564 VOCON kit is only compatible with the 7285726C01 display module.

The 7285726C01 display module is controlled by the Patriot IC MCU core, which programs the display through the EIM data lines D0 - D7 (pins 9 through 16, respectively), the display chip select line (pin 5), the EIM read/write line (pin 8), and the EIM address 0 line (pin 7) that is used to select the register to be programmed. The Patriot IC can reset the display module through pin 6. The display is supplied with 1.8 V (B102) to pin 17 and 3.0 V (B101) to pin 18. Display backlighting is controlled by the Patriot IC GPIO line BL_EN signal through components R140 and Q101. The LEDs on the display module are powered by 5 V going through resistors R101, R102, R103, and R104.

Option

Select 1

Option

Select 2

3.2.4.4.2 7285726C02 and 7285726C03 Display Modules

NOTE: The NNTN4563 VOCON kit is compatible only with the 7285726C02 display module, while

the NNTN4819 VOCON kit is compatible only with the 7285726C03 display module. Check the model charts for display part number compatibility with the NNTN4717 VOCON board.

The 7285726C02 and 7285726C03 display modules are controlled by the Patriot IC SPI bus, which programs the display through the serial data line (pin 16), the serial clock line (pin 15), chip select line (pin 5), and register select line (pin 7) that is used to select the register to be programmed. The Patriot IC can reset the display module through pin 6. The display is supplied with GCAP II V2 regulated voltage (B101) to pins 17 and 18. Display backlighting is controlled by the Patriot IC GPIO line BL_EN signal through components R140 and Q101. The LEDs on the display module are powered by 5 V going through resistors R103 and R104.

6881094C31-D July 21, 2004

Page 68

3-30 Theory of Operation: VOCON Board

3.2.4.5 Keypad Module

The keypad module is either a 6- x 3-button (Model III) or a 2- x 3-button (Model II) module with backlighting.

The keypad module is connected to the VOCON board through flex connector J107. The keypad is read though a row-and-column matrix made up of ROW1, ROW2, ROW3, ROW4, ROW5, ROW6, and COL1, COL2, and COL3. When a key is pressed, a row and a column are connected to each another. The Patriot IC determines a key press by a scanning algorithm. Each column line is configured as an open drain output and pulled low. The Patriot IC then scans the row pins (each row pin has an internal pull-up resistor). If a row signal is read low, then the Patriot IC determines that a key was pressed. If none of the row signal lines are low, then another column line is pulled low and the row scanning routine occurs.

The keypad backlighting is controlled by the Patriot IC GPIO BL_EN, and that signal goes to pin 6 of the J107 connector. Pins 7 and 8 are supplied with 5 volts, which is used to power the LEDs on the keypad module.

3.2.4.6 Controls and Control Top Flex

The universal flex assembly contains an On/Off switch/volume control knob, frequency selector switch, push-to-talk (PTT) switch, monitor button, several function-selectable switches, universal connector, speaker, and microphone.

The housing assembly top controls include the On/Off switch/volume control (S1), a 16-position mode-select switch with programmable two-position concentric switch (U1), a programmable threeposition (A,B,C) toggle switch (S2), and a programmable top (orange) button (SW3). The side controls include three programmable, momentary, pushbutton switches (side button 1 [SB2], side button 2 [SB3], top side button [SB1]) and a PTT switch (SW2). These components are connected through a flex circuit to the controller at J101 (see Table 3-11, “Control Top Flex,” on page 3-31). The assembly also contains the radio's internal speaker and internal microphone.

UNSW_B+ is routed through switch S1 to provide the B+SENSE signal, which is used to activate the SW_B+ and GCAP_B+ voltages that, in turn, power up the radio. Volume control is also provided by S1, which contains a potentiometer biased between V2 regulated voltage and ground. The VOL signal is a voltage level between V2 regulated voltage and ground, depending on the position of the rotary knob. The VOL signal is fed to buffer U507 pin 3, and then the output of the buffer is voltagedivided down to 2.5 volts before the signal goes to the GCAP II IC AD5 pin. The Patriot IC reads the GCAP II IC A/D value through the SPI bus, and from this reading, the Patriot IC DSP adjusts the speaker volume.

Switch S2 is the three-position, programmable, toggle switch typically used for expanded zone/channel selection. The switch can output the following voltages: 0 volts, half of the V2 regulated voltage, or V2 regulated voltage (measurable at R231). The switch is connected to the GCAP II IC AD1 input pin through the voltage divider network of R519 and R523. The Patriot IC reads the A/D value through the SPI bus, and it uses that reading to determine the position of the toggle switch.

The programmable top (orange) button SW3 is typically used for emergency. This button, along with programmable side buttons SB1 through SB3, is connected to a resistor divider network, biased between V2 regulated voltage and ground. This network, made up of R1, R2, and R3, provides a voltage level, controlled by whichever button is pressed, to pin 3 of buffer U504. The output of the buffer is voltage- divided down to 2.5 volts before the signal goes to the GCAP II IC AD0 pin. The Patriot IC reads the GCAP II IC A/D value through the SPI bus, and it uses that data to determine which button was pressed.

LED D1 is the TX/RX indicator. LEDs D2 through D6 are used for backlighting the frequency knob.

July 21, 2004 6881094C31-D

Page 69

Theory of Operation: VOCON Board 3-31

U1 is a binary-coded switch. The output pins from U1, which are connected to GPIO pins on the Patriot IC, provide a four-bit binary word (signals RTA0, RTA1, RTA2, and RTA3) to the MCU, indicating to which of the 16 positions the rotary is set. This switch provides an additional output, TG2, which is typically used for coded or clear mode selection. It is an input to the Patriot IC TOUT8_PD4 GPIO pin. Selecting clear mode pulls this signal to a logic low, and it can be monitored from R234.

To Controller

J101

UNSW_B+ (33)

TOGGLE SWITCH (TG1)

GREEN_LED (22)

ECURE/CLEAR (TG2)

MONITOR (17)

V2 (35)

VOL (31)

EMERG (14)

B+_SENSE (32)

RED_LED (21)

INT_PTT* (38)

RTA0 (27) RTA1 (24) RTA2 (26) RTA3 (25)

SWITCH (23)

DGND (15)

BL_EN (20)

(34)

S901

ON/OFF

Zone/Channel

Select

8 B

CCA

R901S1VOL

SW3

TOP BUTTON

SB1

(MON)

SB2

SB3

3 1

TOGGL

SWITC

3 1

4 2

91K

68K

150K

4 2

SW2

PTT

INT_SPKR (40)

SPKR_COM (37)

INT_MIC (36)

AGND (39)

3.2.4.7 System Clocks

The Patriot IC is supplied with two clocks. The first clock, a 16.8 MHz sine wave, comes from the RF interface connector P201 pin 7. It is conditioned by the clock buffer circuit, which includes Q450, Q451, L450, C450, C452, C452, R450, R451, R452, R453, R454, and R455. The output of this buffer (C452) goes to the Patriot IC CKIH pin as well as the Flipper IC REF_16_IN (C307).

The other clock supplied to the Patriot IC is a 32.768 kHz square wave. This clock is generated by the Flipper IC internal oscillator and an external 32.768 kHz crystal Y301 and is connected to the Patriot IC CKIL pin.

6881094C31-D July 21, 2004

LS1

MIC

Figure 3-11. Control Top Flex

MAEPF-27416-A

Page 70

3-32 Theory of Operation: VOCON Board

3.2.5 VOCON Audio Paths

This section describes the VOCON transmit and receive audio paths. See Figure 8-67, “NTN9564B

VOCON Audio and DC Circuits,” on page 8-102 for schematic details of the following discussion.

3.2.5.1 Transmit Audio Path

Refer to Figure 3-12. The internal microphone audio enters the VOCON board through the universal connector J101 pin 36, and the internal microphone bias is set by circuitry that includes R531, R533, C519 and C521. The internal microphone signal is connected to the MICIN_NEG pin, which is the input terminal on the GCAP II IC internal op-amp A3. The gain of the A3 op-amp is set by the values of R540, R555, and the resistance of EEPOT U509 (digital potentiometer), which is programmed by Patriot IC GPIO lines.

The external microphone audio enters the VOCON board through the universal connector J101 pin 13, and the external microphone bias is set by circuitry that includes R563, R565, C547, and C548. The external microphone signal is connected to the AUX_MIC_NEG pin, which is an input terminal on the GCAP II IC internal op-amp A5. The gain of the A5 op-amp is set by the values of R566, R561, and the resistance of the EEPOT U509.

The Patriot IC, through the SPI bus, programs a multiplexer to select one of the microphone signals. Then, the selected amplified microphone signal goes through a programmable gain amplifier before it goes to the CODEC for A/D conversion. The resulting digital data is filtered and sent to the DSP on the SAP CODEC_TX line from the GCAP II IC TX pin. After additional filtering and processing, the DSP sends the data-out from the STDB pin to the RF interface connector P201 pin 4 (TX_DATA), which is connected to the DAC U203 on the transceiver board.

TP214

INTERNAL MIC

Bias (R531,

R533, C519, C521)

and Input

(R540, C522)

EXTERNAL MIC

Bias (R563,

R565, C547, C548)

and Input

(R566, C549)

R555

MICIN _NEG

AUX_MIC

_NEG

R561

EEPOT U509

0 - 50K, 256 taps

MIC PREAMP

Gain =

-14dB to 16dB

MIC PREAMP

Gain =

-14dB to 16dB

EEPOT U509

0 - 50K, 256 taps

EEPOT_CS_EXT* EEPOT_CS* EEPOT_U_D* EEPOT_INC*

MIC_OUT

MUX

AUX_OUT

GCAP_CE, SCKB SPI_MISOB SPI_MOSIB

Patriot GPIO

PB4, PB5,

PB6, PB7

GCAP II IC U501

PGA

-7 to +8dB

in 1dB steps

Set at 6dB

CODEC_TX

Patriot SPIB

Patriot SAP/BBP

(On RF Board)

CODEC A/D

RF D/A

U203

13-bit

cutoff = 3.5KHZ

CODEC_FSYNC

CODEC_DCLK

TX_SSI_FSYNC TX_SSI_CLK TX_DATA

MAEPF-27418-A

HP FILTER

cutoff = 200HZ

LP FILTER

Flipper

U301

Figure 3-12. VOCON Transmit Audio Path

July 21, 2004 6881094C31-D

Page 71

Theory of Operation: VOCON Board 3-33

3.2.5.2 Receive Audio Path

Refer to Figure 3-13. The receive audio data comes from the Abacus III IC U500 through the RF interface connector P201 pin 12 (RX_DATA) to the Patriot IC SRDB pin. The DSP decodes the data and sends it out through the CODEC_RX line to the GCAP II IC RX pin. The CODEC filters and converts the digital data into an analog audio signal, which, in turn, is sent to a programmable gain amplifier. The Patriot IC programs a multiplexer to route the audio signal to the A4 amplifier, which has a fixed gain of 3.5 dB. The output of the A4 amplifier is pin EXTOUT.

From the EXTOUT pin, the audio signal goes through the pre-amplifier U502 and then to the audio power amplifier U503, which together provide approximately 30 dB of gain. The Patriot IC selects whether the amplified audio is routed to the internal speaker or the external speaker.

CODEC_FSYNC

LP FILTER

cutoff = 3.5KHZ

CODEC_DCLK

Flipper

U301

Audio_PA_Enable

0 0 1 1

HP FILTER

cutoff = 200HZ

CODEC_RX

PATRIOT SAP/BBP

ABACUS III

U500

(On RF Board)

Audio_Mode_Sel

0 1 0 1

PATRIOT

SPI B

RX_SSI_FSYNC RX_SSI_CLK RX_SSI_DATA

Audio PA Status

GCAP II IC U501

GCAP CODEC

13-bit D/A

GCAP_CE, SCKB SPI_MOSIB SPI_MISOB

PATRIOT

GPIO

Audio Off

Mute Audio On Audio On

PGA

-35 to 0dB

in 5dB steps

Default 0dB

Mode (V)

1.5V <V_mode<6V <0.5V

>7V

EXT PRE-AMP

U502

Gain set by

R537 and R551

Audio PA Enable

Control circuits

1/2 Q505

AUDIO_PA_ENABLE

PA Status

Mute Audio On Audio Off

GCAP A4 Gain = 1.5

(3.5dB)

AUDIO PA U503

Gain set by R550,

R554, R549, and

Audio PA Mute

Q506,R564,R559

EXTOUT

R553

MODE SELECT

Control

AUDIO_MODE_SEL

Select (V) B+ (7.5V)

<0.5V

TP212

TP2123

Int/Ext SPKR SEL

Control circuits

1/2 Q505, R558

EXT_SPKR_SEL

Internal Speaker Internal Speaker

External Speaker

MAEPF-27417-A

External Speaker

28 Ohm Internal

Speaker

3.2.6 Radio Power-Up/Power-Down Sequence

The radio power-up sequence begins when the user closes the radio On/Off switch on the control top, placing 7.5 Vdc on the B+SENSE line. This voltage enables the pass element Q501 and Q502, enabling SW_B+ and GCAP_B+.

When the GCAP II IC U501 detects a low-to-high voltage transition on GCAP_B+, it turns on and enables voltage supplies VSW1, VSW2, V2 and Vref. As soon as these voltages come up, the

1.55 V regulator ramps up (only on the NNTN4717 VOCON board), and the Flipper IC U301 drives the WDI line high to enable VCC5 from regulator U505 and to maintain the GCAP II IC in the ON state. If WDI remains low, the GCAP II IC turns off 50 ms after turning on.

6881094C31-D July 21, 2004

Figure 3-13. VOCON Receive Audio Path

Page 72

3-34 Theory of Operation: Encryption Module

The radio power-down sequence begins by opening the radio On/Off switch, which removes the B+SENSE signal from the VOCON board. This does not immediately remove power because the GCAP II IC has control of Q502 through Vref, and U301 through WDI maintains the GCAP II IC in an active state. Both the MCU and Flipper IC monitor B+SENSE. After B+SENSE is removed, the Flipper IC waits 125 ms. before releasing WDI to allow for software cleanup; however, the software has the ability to prolong this time if it was necessary to complete its operations. When WDI is released, the GCAP II IC shuts down its supplies and the rest of the radio through Q501.

3.3 Encryption Module

The encryption module (secure models only) connects directly to the VOCON board and interfaces directly with the vocoder digital circuitry. It contains an independent microcontroller and two custom ICs to perform digital, numerical, encryption algorithms.

The encryption modules are designed to digitally encrypt and decrypt voice and ASTRO data in ASTRO XTS 5000 radios. This section covers the encryption modules, hardware kits NTN9738 and

NNTN5032.

NOTE: The encryption modules are NOT serviceable. The information contained in this section is

only intended to help determine whether a problem is due to a encryption module or the radio itself.

The encryption module uses a custom encryption IC and an encryption key variable to perform its encode/decode function. The encryption key variable is loaded into the encryption module, via the radio's universal (side) connector, from a hand-held, key variable loader (KVL). The encryption IC corresponds to the particular encryption algorithm purchased. Table 3-6 lists the encryption algorithms and their corresponding kit numbers.

Table 3-6. Encryption Module Software Kits and Algorithms

Software

Kit Number

NNTN4006 DES, DES-XL, DES-OFB

NTN9837 DES, DES-XL, DES-OFB WITH DVP-XL

NTN9838 DVI-XL

NTN9839 DVP-XL

NNTN4197 AES

NNTN4198 AES with DES, DES-XL, DES-OFB

Algorithm

The encryption module operates from two power supplies (UNSW_B+ and SW_B+). The SW_B+ is turned on and off by the radio's On/Off switch. The UNSW_B+ provides power to the encryption module as long as the radio battery is in place.

Key variables are loaded into the encryption module through connector J701, pin 1. Depending on the type of encryption module, up to 16 keys can be stored in the module at a time. The key can be infinite key retention or 30-seconds key retention, depending on how the codeplug is set up.

The radio' s host processor communicates with the encryption module on the Synchronous Serial Interface (SSI) bus. The SSI bus consists of five signal lines. A communications failure between the host processor and the secure module will be indicated as an ERROR 09/10 message on the display.

To troubleshoot the encryption module, refer to the flowcharts in Chapter 5 “Troubleshooting Charts.”

July 21, 2004 6881094C31-D

Page 73

Chapter 4 Troubleshooting Procedures

The purpose of this chapter is to aid in troubleshooting problems with the ASTRO XTS 5000 radio. It is intended to be detailed enough to localize the malfunctioning circuit and isolate the defective component. It also contains a listing of service tools recommended for PC board repair at the component level.

Most of the ICs are static sensitive devices. Do not attempt to

a u t i o

4.1 Handling Precautions

Complementary metal-oxide semiconductor (CMOS) devices, and other high-technology devices, are used in this family of radios. While the attributes of these devices are many, their characteristics make them susceptible to damage by electrostatic discharge (ESD) or high-voltage charges. Damage can be latent, resulting in failures occurring weeks or months later. Therefore, special precautions must be taken to prevent device damage during disassembly, troubleshooting, and repair. Handling precautions are mandatory for this radio, and are especially important in lowhumidity conditions. DO NOT attempt to disassemble the radio without observing the following handling precautions.

disassemble the radio or troubleshoot a board without first referring to the following Handling Precautions section.

1. Eliminate static generators (plastics, Styrofoam, etc.) in the work area.

2. Remove nylon or double-knit polyester jackets, roll up long sleeves, and remove or tie back loose-hanging neckties.

3. Store and transport all static-sensitive devices in ESD-protective containers.

4. Disconnect all power from the unit before ESD-sensitive components are removed or inserted unless otherwise noted.

5. Use a static-safeguarded workstation, which can be accomplished through the use of an antistatic kit (Motorola part number 01-80386A82). This kit includes a wrist strap, two ground cords, a static-control table mat and a static-control floor mat.

Page 74

4-2 Troubleshooting Procedures: Recommended Service Tools

4.2 Recommended Service Tools

Table 4-1 lists recommended service tools that can be used for PC board repairs at the component

level. For listings of additonal service tools, service aids, and test equipment that are recommended for all levels of service, refer to the XTS 5000 basic service manual (see “ Related Publications” on

page xii).

Table 4-1. Recommended Service Tools

Motorola

Part Number

R1453 Digital-readout solder station Digitally controlled soldering iron

RLN4062 Hot-air workstation, 120V Tool for hot-air soldering/desoldering of

0180386A78 Illuminated magnifying glass with

lens attachment

0180302E51 Master lens system

0180386A82 Anti-static grounding kit Used during all radio assembly and

6684253C72 Straight prober

6680384A98 Brush

1010041A86 Solder (RMA type), 63/67, 0.5 mm

diameter, 1 lb. spool

0180303E45 SMD tool kit (included with

R1319A)

R1319 ChipMaster (110V) Surface-mount removal and assembly of

R1321 ChipMaster (220V)

Description Application

surface-mounted integrated circuits

Illumination and magnification of components

disassembly procedures

surface-mounted integrated circuits and/or rework station shields. Includes 5 nozzles.

R1364 Digital heated tweezer system Chip component removal

R1427 Board preheater Reduces heatsink on multi-level boards

6680309B53 Rework equipment catalog Contains application notes, procedures,

ChipMaster Options:

6680370B54 0.710” x 0.710” Heat-focus heads for R1319 workstation

6680370B57 0.245” x 0.245”

6680370B58 0.340” x 0.340”

6680371B15 0.460” x 0.560”

July 21, 2004 6881094C31-D

and technical references used to rework equipment

Page 75

Troubleshooting Procedures: Voltage Measurement and Signal Tracing 4-3

Table 4-1. Recommended Service Tools (Continued)

Motorola

Part Number

ChipMaster Nozzles:

6680333E28 PA nozzle Soldering and unsoldering ICs

6680332E83 PLCC-28* nozzle

6680332E93 PLCC-32 nozzle

6680332E82 PLCC-44* nozzle

6680332E94 PLCC-52 nozzle

6680332E95 PLCC-68* nozzle

6680332E96 PLCC-84 nozzle

6680332E89 QFP-80 nozzle

6680332E90 QFP-100* nozzle

6680332E91 QFP-132* nozzle

6680334E67 QFP-160 nozzle

6680332E86 SOIC-14/SOL-16J nozzle

6680333E46 SOL-18 nozzle

Description Application

6680332E84 SOIC-20 nozzle

6680332E87 SOL-20J nozzle

6680333E45 SOL-24 nozzle

6680332E88 SOL-28J nozzle

6680333E54 TSOP-32 nozzle

6680333E55 TSOP-64 nozzle

* Included with ChipMaster packages

4.3 Voltage Measurement and Signal Tracing

It is always a good idea to check the battery voltage under load. This can be done by checking the OPT_B+_VPP pin at the side connector (pin 4). The battery voltage should remain at or above

7.0 Vdc. If the battery voltage is less than 7.0 Vdc, then it should be recharged or replaced as necessary prior to analyzing the radio.

In most instances, the problem circuit may be identified using a multimeter, an RF millivoltmeter, oscilloscope (preferably with 100 MHz bandwidth or more), and a spectrum analyzer.

When checking a transistor or module, either in or out of

a u t i o

circuit, do not use an ohmmeter having more than 1.5 Vdc appearing across test leads or use an ohms scale of less than x100.

6881094C31-D July 21, 2004

Page 76

4-4 Troubleshooting Procedures: Standard Bias Table

4.4 Standard Bias Table

Table 4-2 outlines some standard supply voltages and system clocks which should be present under

normal operation. These should be checked as a first step to any troubleshooting procedure.

Table 4-2. Standard Operating Bias

Signal Name Nominal Value To l e rance VOCON Board Source

13 MHz 13 MHz ±1000 ppm C303 (NTN9564)

C339 (NNTN4563, NNTN4819 &

NNTN4717)

FLIP_32K 32.768 kHz ±400 ppm U302, pin2

(under shield SH102

on NNTN4563, NNTN4819 &

NNTN4717)

SINE32K 32.768 kHz ±400 ppm C313 (NTN9564)

C306 (NNTN4563, NNTN4819 &

NNTN4717)

CKIH 16.8 MHz R452

(under shield SH101 on NNTN4563,

NNTN4819 & NNTN4717 or

test fixture pin 7 on the

board-to-board connector)

16_8MHz 16.8 MHz C452

(under shield SH101

on NNTN4563, NNTN4819 &

NNTN4717)

POR 3.0 Vdc ±5% POR test point

RESET_OUT 3.0 Vdc ±5% RESET_OUT test point (NTN9564)

D401, pin 3 (NNTN4563, NNTN4819 &

NNTN4717)

VSW1 3.85 Vdc ±5% R502

VSW2 1.85 Vdc ±5% R501

FILT_B+ 7.5 Vdc 6.0-9.0 Vdc C523

V2 3.0 Vdc*

2.9 Vdc**

GCAP_B+ 7.5 Vdc 6.0-9.0 Vdc R581

UNSW_B+ 7.5 Vdc 6.0-9.0 Vdc B104

SW_B+ 7.5 Vdc 6.0-9.0 Vdc R587

VCC5 5.0 Vdc ±5% R503

VSW_1_55 V 1.55 Vdc ±5% R407 (NNTN4717 VOCON kit only)

±5% R560

* = NTN9564, NNTN4563, & NNTN4819 VOCON kits ** = NNTN4717 VOCON kit

July 21, 2004 6881094C31-D

Page 77

Troubleshooting Procedures: Power-Up Self-Check Errors 4-5

4.5 Power-Up Self-Check Errors

Each time the radio is turned on, the MCU and DSP perform a series of internal diagnostics. These diagnostics consist of checking such programmable devices as the FLASH ROMs, the EEPROM, and SRAM devices.

Problems detected during the power-up self-check routines are presented as error codes on the radio’s display. For non-display radios, the problem is presented at power up by a single, lowfrequency tone. Table 4-3 lists possible error codes, a description of each error code, and a recommended corrective action.

Table 4-3. Power-Up Self-Check Error Codes

Error

Code

01/02 FLASH ROM codeplug Checksum Non-Fatal Error Reprogram the codeplug

01/12 Security Partition Checksum Non-Fatal Error Send radio to depot

01/20 ABACUS Tune Failure Non-Fatal Error Turn radio off, then on

01/22 Tuning Codeplug Checksum Non-Fatal Error Send radio to depot

01/81 Host ROM Checksum Fatal Error Send radio to depot

01/82 FLASH ROM Codeplug Checksum Fatal Error Reprogram the codeplug

01/88 External RAM Fatal Error — Note: Not a checksum error Send radio to depot

01/90 General Hardware Failure Fatal Error Turn radio off, then on

01/92 Security Partition Checksum Fatal Error Send radio to depot

01/93 FLASHport Authentication Code Failure Send radio to depot

01/98 Internal RAM Fail Fatal Error Send radio to depot

01/A2 Tuning Codeplug Checksum Fatal Error Send radio to depot

02/81 DSP ROM Checksum Fatal Error Send radio to depot

02/88 DSP RAM Fatal Error — Note: Not a checksum error Turn radio off, then on

Description Corrective Action

02/90 General DSP Hardware Failure (DSP startup message not

received correctly)

09/10 Secure Hardware Failure Turn radio off, then on

09/90 Secure Hardware Fatal Error Turn radio off, then on

6881094C31-D July 21, 2004

Turn radio off, then on

Page 78

4-6 Troubleshooting Procedures: Power-Up Self-Check Diagnostics and Repair (Not for Field Use)

4.6 Power-Up Self-Check Diagnostics and Repair (Not for Field Use)

Table 4-4 lists additional action items that can be used for the diagnosis and resolution of the error

codes listed in Table 4-3 on page 4-5.

Table 4-4. Power-Up Self-Check Diagnostic Actions

Error Code

01/02 This non-fatal error will likely recover if the radio's power is cycled. In the event that this

does not resolve the issue, the radio should be reflashed. As a last resort, the FLASH ROM U402 should be replaced.

01/12 The radio should be sent to the depot for reflashing of the security codeplug.

01/20 Cycling radio power should resolve this issue.

01/22 The radio should be sent to the depot for reflash of the tuning codeplug followed by

retuning of the radio.

01/81 The radio should be sent to the depot for reflashing of the host code.

01/82 The radio should be sent to the depot for reflashing of the radio codeplug.

01/88 Reflashing of the radio should first be performed. If this fails to resolve the issue, then

replacement of the SRAM U403 is necessary.

01/90 Cycle power to radio. Continued failure indicates a likely IC failure (GCAP, PCIC,

FLIPPER, ABACUS). In this event, radio should be sent to the depot for isolation and repair of the problem IC.

01/92 The radio should be sent to the depot for reprogramming of the security codeplug.

01/93 The radio should be sent to the depot for reflashing of the host code.

01/98 Send radio to the depot for replacement of the SRAM U403.

Diagnostic Actions

01/A2 The radio should be sent to the depot for reflashing of the tuning codeplug followed by

re-tuning of the radio.

02/81 The radio should be sent to the depot for examination and/or replacement of either the

FLASH U402, or the PATRIOT MCU/DSP U401.

02/88 Cycle power to the radio. If this does not fix the problem, then the radio should be sent

to the depot for reflashing of the DSP code. Continued failure requires examination and/ or replacement of the SRAM U403.

02/90 Cycle power to the radio. If this fails to fix the problem, then the radio should be sent to

the depot for reflashing of the DSP code. Continued failure may require replacement of U401, the PATRIOT MCU/DSP.

09/10 Cycle power to the radio. If this fails then follow instructions in the secure hardware

failure troubleshooting flowchart.

09/90 Cycle power to the radio. If this fails then follow instructions in the secure hardware

failure troubleshooting flowchart.

July 21, 2004 6881094C31-D

Page 79

Chapter 5 Troubleshooting Charts

This section contains detailed troubleshooting flowcharts. These charts should be used as a guide in determining the problem areas. They are not a substitute for knowledge of circuit operation and astute troubleshooting techniques. It is advisable to refer to the related detailed circuit descriptions in the theory of operation sections prior to troubleshooting a radio.

5.1 List of Troubleshooting Charts

Most troubleshooting charts (see Table 5-1) end up by pointing to an IC to replace. It is not always noted, but it is good practice to verify supplies and grounds to the affected IC and to trace continuity to the malfunctioning signal and related circuitry before replacing any IC. For

instance, if a clock signal is not available at a destination, continuity from the source IC should be checked before replacing the source IC.

Table 5-1. Troubleshooting Charts List

Chart Title

Main Troubleshooting Flowchart 5-2

Power-Up Failure 5-3

DC Supply Failure 5-5

Display Failure (NNTN4563, NNTN4819, & NNTN4717 VOCON Kits)

Display Failure (NTN9564) 5-11

Volume Set Error 5-14

Channel/Zone Select Error 5-15

Button Test 5-16

Top/Side Button Test 5-17

VCO TX/RX Unlock 5-18

VOCON TX Audio—Page 1 5-19

VOCON RX Audio 5-21

RX RF

Page

Number

5-8

5-23

TX RF (VHF and UHF Range 2) 5-28

TX RF (UHF R1/700-800 MHz) 5-31

Keyload Failure 5-34

Secure Hardware Failure 5-35

Page 80

5-2 Troubleshooting Charts: Main Troubleshooting Flowchart

5.2 Main Troubleshooting Flowchart

Start

Go to

TX RF

flowchart

Go to

TX RF

flowchart

Go to

VOCON

RX Audio

flowchart

Good

power-up

Self-Test?

Yes

Is there

TX Power?

Yes

Is TX

Deviation

OK?

Yes

Receive

Audio?

Yes

Error

Message?

Yes

See T ab le 5-2:

Power-up Self-

Check Error

Codes

Yes

Display Model?

Use RSS to

display Error

Messages

Error

Messages on

RSS?

Go to either

Display Failure or

Power-Up Failure

flowchart

Yes

See Button

Test flowchart

July 21, 2004 6881094C31-D

Good

SINAD?

Yes

Buttons

Functional?

Yes

End

MAEPF-27403-A

Page 81

Troubleshooting Charts: Power-Up Failure 5-3

5.3 Power-Up Failure—Page 1

Radio

Power-Up

Failure

Verify Standard

Bias in

Table 5-1

Isolate and Repair Problem See DC Supply

Failure flowchart

Replace U301

(Flipper) and

place R528

back on board

Yes

Standard

Bias OK?

Yes

Remove

R528 (VOCON)

Fixed?

Signal may appear for a very short period of time (50 ms). Use an oscilloscope with trigger to capture signal.

Place R528

back on board

Probe

32.768 kHz

Clock at R316

Signal

Present?

Yes

VOCON Board

NNTN4563, NNTN4819,

or NNTN4717

kit?

Yes

Remove

Shield

SH101

Verify integrity

of C308 and

C309

MAEPF-27389-C

6881094C31-D July 21, 2004

Page 82

5-4 Troubleshooting Charts: Power-Up Failure

Power-Up Failure—Page 2

Probe

16.8 MHz

Signal at R452

Signal

greater than

600mV?

Yes

Check

16.8 MHz Signal at

C452

Signal

greater than

600mV?

Yes

Signal may appear for a very short period of time (50ms). Use an oscilloscope with trigger to capture signal.

Investigate

16.8 MHz

Reference

Oscillator

Investigate

Clock Buffer

Components and

Isolate Problem

Note:Allcomponentsnotedonthis chartareVOCONcomponents.

This signal may contain harmonics and, therefore, may not appear as a perfect sinewave.

Refer Board to

Service Depot for

Reflash, Patriot,

SRAM, and

FLASH Analysis

Components

OK?

Yes

Replace

Y301

Fixed?

Yes

Replace Problem

Component

Replace

U301

Fixed?

Yes

End

MAEPF-27390-A

July 21, 2004 6881094C31-D

Page 83

Troubleshooting Charts: DC Supply Failure 5-5

5.4 DC Supply Failure—Page 1

NOTE: Since the failure of a critical voltage supply might cause the radio to automatically power

down, supply voltages should first be probed with a multimeter. If all the board voltages are absent, then the voltage test point should be retested using a rising-edge-triggered oscilloscope. If the voltage is still absent, then another voltage should be tested using the oscilloscope. If that voltage is present, then the original voltage supply in question is defective and requires investigation of associated circuitry.

Problem with

DC Distribution

Network

Check V oltage

at pin 5 of

Q501 (VOCON)

Voltage

= B+?

Yes

Check V oltage

at pin 1 of

Q501

Voltage

= B+?

Yes

Check

Continuity of

Fuse F901

on transceiver

Check V oltage

at pin 3 of

Q502

Replace

Q501

Yes

Fuse OK?

Yes

Check Battery

Connections for

Good Contact

Voltage

= B+?

Yes

Check V oltage

at pin 2 of

Q502

Voltage

= 0V?

NoNo

Replace

Fuse

Replace Front

Cover Housing

Assembly

Fixed?

Replace

Q502

Yes

End

6881094C31-D July 21, 2004

MAEPF-27391-A

Page 84

5-6 Troubleshooting Charts: DC Supply Failure

DC Supply Failure—Page 2

Check V oltage

at B502

(VOCON)

Voltage

= 3.77V+/-5%?

Yes

Check V oltage

at R501

Voltage

= 1.85V+/-5%?

Yes

Check V oltage

at R560

Voltage

= V2?*

* per Standard Bias Table

Yes

Check R502,

C506, L502,

and D503

Check R763, L703, C717,

and CR700

Components

OK?

Replace Problem

Component

Components

OK?

Replace Problem

Component

Yes

ReFLASH

HOST C

Code

Fixed?

Replace

U501

(GCAP II)

Yes

End

July 21, 2004 6881094C31-D

MAEPF-27392-B

Page 85

Troubleshooting Charts: DC Supply Failure 5-7

DC Supply Failure—Page 3

Check Voltage

at pin 5 of

U505 (VOCON)

= 5.0V+/-5%?

Check Voltage

Voltage

Yes

at TP5

* per Standard Bias Table

Voltage

= V2?*

Yes

at TP7

* per Standard Bias Table

Voltage

= V2?*

Yes

Is unit VHF and UHF R2?

Yes

No No

Check R503,

D501, C509,

C510, and C508

Check 700-800:

E6, C15, C16,

C17, and D2

VHF and UHF R2:

E6, C6, C8,

and D2

Check

700-800: D3, R704,

C19, and C20

VHF and UHF R2:

E7, C9, C10, C11, and D3

Components

OK?

Yes

Replace

700-800: U505

VHF and

UHF R2: U1

Components

OK?

Yes

Replace

Components

OK?

Yes

Replace

Replace Problem

Component

NoNo

Replace Problem

Component

Replace Problem

Component

Check Voltage

at TP6

* per Standard Bias Table

Voltage

= V2?*

Yes

Check Voltage

at TP3

Voltage

= 5.0V+/-5%?

Yes

End

6881094C31-D July 21, 2004

No No

Check

E8, C18, C19,

C20, and D4

Check

700-800: D1, E5,

C12, C13, and C14

VHF and UHF R2:

E5, C3, C4, C5, and D1

Components

OK?

Yes

Replace

Components

OK?

Yes

Replace

Replace Problem

Component

Replace Problem

Component

MAEPF-27393-C

Page 86

5-8 Troubleshooting Charts: Display Failure (NNTN4563, NNTN4819, & NNTN4717 VOCON Kits)

5.5 Display Failure (NNTN4563, NNTN4819, & NNTN4717 VOCON Kits) Page 1

NOTE: The NNTN4563 VOCON board is compatible only with the 7285726C02 display module,

and the NNTN4819 VOCON board is compatible only with the 7285726C03 display module.

No Display

Replace

LCD Display

Problem

Resolved?

Check DC

on J301,

pins 17 and 18

2.775 V<V<3.1 V?

Check integrity

of B101

B101 OK?

Yes

End

Replace

B101

July 21, 2004 6881094C31-D

Yes

Verify V2

using

DC Supply Failure

flowchart

MAEPF-27505-B

Page 87

Troubleshooting Charts: Display Failure (NNTN4563, NNTN4819, & NNTN4717 VOCON Kits) 5-9

Display Failure (NNTN4563, NNTN4819, & NNTN4717 VOCON Kits) Page 2

Check P_S*

at J301, pin 4

V = 0 V?

Yes

Check RESET

at J301, pin 6

V = V2?*

Yes

Check

REG_SEL

at J301, pin 7

V = V2?*

Yes

No Yes

* per Standard Bias Table

No Yes

* per Standard Bias Table

Verify Signal

Path Integrity

and correct

Verify Signal

Path Integrity

and correct

Verify Signal

Path Integrity

and correct

Problem

Resolved?

Problem

Resolved?

Problem

Resolved?

End

YesNo

End

6881094C31-D July 21, 2004

Check CS at

J301, pin 5

V = V2?*

Yes

* per Standard Bias Table

Verify Signal

Path Integrity

and correct

Problem

Resolved?

Yes

End

MAEPF-27506-A

Page 88

5-10 Troubleshooting Charts: Display Failure (NNTN4563, NNTN4819, & NNTN4717 VOCON Kits)

Display Failure (NNTN4563, NNTN4819, & NNTN4717 VOCON Kits) Page 3

Use an oscilloscope to check for a low-level (0V) pulse occurrence during power-on initialization period.

Use an oscilloscope to check for either a low-level (0V) pulse or high-level (0-V2) occurrence during power-on initialization period.

Check Active

Low Status on

both RESET

and CS

Low-

Level Pulses

Present?

Yes

Check J301, pins

15 and 16 for

appropriate voltage

levels (0-V2)

Signal

present

at appropriate

level?

Return radio to

service depot for

further analysis

Yes

Replace

Display

MAEPF-27507-A

July 21, 2004 6881094C31-D

Page 89

Troubleshooting Charts: Display Failure (NTN9564) 5-11

5.6 Display Failure (NTN9564)—Page 1

NOTE: The NTN9564 VOCON board is compatible only with the 7285726C01 display module.

No Display

Replace

LCD Display

Problem

Resolved?

Check DC on

J301, pin 17

1.8<V<1.95V?

Check integrity

of B102

Yes

End

6881094C31-D July 21, 2004

B102 OK?

Yes

V erify VSW2

(1.85V) using

DC Supply Failure

flowchart

Replace

B102

MAEPF-27404-O

Page 90

5-12 Troubleshooting Charts: Display Failure (NTN9564)

Display Failure (NTN9564)—Page 2

Check P_S*

at J301, pin 4

V = 1.85V?

Yes

Check RESET

at J301, pin 6

V = 1.85V?

Yes

Check

REG_SEL

at J301, pin 7

V = 1.85V?

Yes

No Yes

Verify Signal

Path Integrity

and correct

Verify Signal

Path Integrity

and correct

Verify Signal

Path Integrity

and correct

Problem

Resolved?

Problem

Resolved?

Problem

Resolved?

YesNo

End

Check CS at

J301, pin 5

V = 1.85V?

Yes

July 21, 2004 6881094C31-D

Verify Signal

Path Integrity

and correct

Problem

Resolved?

Yes

End

MAEPF-27405-O

Page 91

Troubleshooting Charts: Display Failure (NTN9564) 5-13

Display Failure (NTN9564)—Page 3

Use an oscilloscope to check for a low-level (0V) pulse occurrence during power-on initialization period.

Use an oscilloscope to check for either a low-level (0V) pulse or high-level (1.85V) occurrence during power-on initialization period.

Check Active

Low Status on

both RESET

and CS

Low-

Level Pulses

Present?

Yes

Check D0-D7

for appropriate

voltage levels

Signal

present

at appropriate

level?

Yes

Return radio to

service depot for

further analysis

Replace

Display

MAEPF-27406-O

6881094C31-D July 21, 2004

Page 92

5-14 Troubleshooting Charts: Volume Set Error

5.7 Volume Set Error

Volume

Set Error

Synopsis

Verify operation

of volume knob

using Button Test

flowchart

This chart relates to a failure in the volume set knob. Basic failure modes are as follows:

1) Failure in control top/PTT flex circuit

2) Bad connection

3) Defective volume control potentiometer

4) Defective A/D port in GCAP II

5) Problem in receive audio circuit

Refer to

VOCON RX

Audio flowchart

Yes

Volume

check OK?

Using a voltmeter,

measure voltage at

U507 pin 1, when volume

knob is all the way on.

The value should be V2*

* per Standard Bias Table

Voltage

Functional?

Replace

U507

Measure voltage from

R526 to GND while

moving volume knob

from min to max. Max

volume is 2.50V

Yes

Replace

U501

July 21, 2004 6881094C31-D

Replace Front

Cover Housing

Assembly

Volume

pot OK?

Verify connections

and control top/PTT

flex connections

Yes

MAEPF-27401-A

Page 93

Troubleshooting Charts: Channel/Zone Select Error 5-15

5.8 Channel/Zone Select Error

Channel

Select Error

Verify operation

of zone knob

using Button Test

flowchart

By studying the

adjacent table against

the channel numbers

that have errors, one

signal may be determined

to be in error. Verify logic levels at R235,

R236, R239, and R241

for each channel.

Signals

check good at U1

on the controls

flex assy.?

Yes

Channel

Probe Point

RT A3

(R241)

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16

Verify codeplug

programming with

RSS. If codeplug

checks OK, then

replace U1.

RT A2

(R239)

1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0

1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0

RT A1

(R236)

1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0

RT A0

(R235)

1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0

Verify similar operation directly at U1 on controls

flex assembly

checks

good?

Yes

Repair flex or

connections as

needed

6881094C31-D July 21, 2004

Replace Front

Cover Housing

Assembly

MAEPF-27402-O

Page 94

5-16 Troubleshooting Charts: Button Test

5.9 Button Test

End

Button T est

Place radio in Test Mode.

Press Top Side Button (Monitor) so display reads CH TEST . This places the radio in button test mode.

Then, press the orange (Emergency) T op Button to verify codes displayed

as shown in the Button

Table at right

Yes

Keys

correct?

Check signal

path integrity of

button in question

Synopsis

This chart relates to a failure in the button functions Basic Failure modes are as follows:

1) Failure in control top/PTT or keypad flex assembly

2) Bad Connection

3) Defective Switches or pads

4) Defective A/D port in GCAP II

Button T ab le Button PTT Top Button (Emergency) Side Button 1 (Monitor) Side Button 2 Side Button 3 Channel Select (Frequency) Volume Control Knob Zone Select

131/1

129/1

Home Alpha

49/1

128/1

132/1

135/1

130/1

136/1

50/1

2ABC

Code 1/ 0-1 3/ 0-1

96/ 0-1 97/ 0-1 98/ 0-1 4/ 0-15

0/ 0-244

65/ 0-2

133/1

134/1

51/1

3DEF

Navigation

Button

52/1

4GHI

55/1

7PRS

58/1

53/1

5JKL

56/1

8TUV

48/1

54/1

6MNO

57/1

9XYZ

59/1

MAEPF-27399-O

July 21, 2004 6881094C31-D

Page 95

Troubleshooting Charts: Top/Side Button Test 5-17

5.10 Top/Side Button Test

Top/Side

Button T est

Synopsis

This chart relates to a failure in

Using RSS,

verify problem

button is enabled

for function

using Button Test

Yes

Verify operation

of zone knob

flowchart

Button

check OK?

reading the buttons: Emergency, Side Button 1, Side Button 2, or Side Button 3.

Basic failure modes are as follows:

1) Failure in controls flex circuit

2) Bad connection

3) Defective Switch

4) Defective A/D port in GCAP II

Replace

U501

Buttons

Enabled?

Use RSS to enable

button

Yes

Replace

U504

Problem

fixed?

Using a voltmeter, measure the voltage at U504 pin 3 while depressing the following buttons: Emergency, Side Button 1, Side Button 2, and Side Button 3. The probe points are as follows: Button Emergency Top Side Middle Side Bottom Side None Pressed

Yes

Voltage

0.18V

1.40V

1.70V

2.00V

2.50V

Levels

Verify physical

correct?

Yes

End

operation of

buttons

Buttons

OK?

Replace Front

Cover Housing

Assembly

6881094C31-D July 21, 2004

Yes

Verify connections

and control top/PTT

flex circuit and

repair as necessary

MAEPF-27400-O

Page 96

5-18 Troubleshooting Charts: VCO TX/RX Unlock

5.11 VCO TX/RX Unlock

VCO TX/RX

unlock

Sniff: Using an inductive field probe

"Sniff"

frequency near

VCO shield

as an antenna to measure

frequency. Place the probe

approximately 1/2 inch away

from components to be sniffed.

Frequency

detected?

Yes

Check control

voltage at

TP243

<0.6Vdc

>11.0Vdc or

drifting?

Yes

Check parts

around U202. If

OK, replace U202

OK, replace U2

spectrum analyzer

5V at TP3?

Yes

Check parts

around U2. If

Check if VCO

is locked using

VCO locked?

Yes

Check

VOCON board

Check parts

around U1. If

OK, replace U2

3V at TP5?

Yes

Remove

VCO shield

Is unit

VHF?

No No

Aux.

line 1 (2, 3, 4)

is high?

Yes

Field Effect

Transistor (FET)

Q302 VC01 Q306 VC02 Q309 VC03

Yes

Aux. line

3 high for TX

or low for RX

(VHF)?

Field Effect

Transistor (FET)

Q306 RX1 Aux 2 Q305 RX2 Aux 3 Q308 TX Aux 4

FET

drain voltage

0V?

Yes

BJT

emitter voltage

>1.2V?

Yes

OK, replace U300

Is pin 19 of VCOBIC low for RX and

4.5 for TX? Yes

Check parts

around U302.

If OK, replace

Q302

Check parts

around FET. If

OK, replace FET

Check parts

around U300. If

Remove

VCO buffer

shield (SH302)

Check parts

around Q301. I

OK, replace Q30

Bi-polar Transistor (BJT)

Q302 RX1 Q301 RX2

Q304 TX

July 21, 2004 6881094C31-D

Bi-polar Transistor (BJT)

Q301 VC01 Q303 VC02 Q308 VC03

Yes

Check parts

around BJT. If

OK, replace BJT

MAEPF-27398-B

Page 97

Troubleshooting Charts: VOCON TX Audio—Page 1 5-19

5.12 VOCON TX Audio—Page 1

Radio has no Transmitter Deviation (VOCON Evaluation)

Inspect

Microphone and

Flex Connector

Connections

OK?

Yes

Connect an

RLN4460A audio

test box (or equivalent)

to the radio side

connector

Inject a 200 mV

rms 1.0 kHz tone

to the test box

Audio In port

Is FM

deviation approx.

3.0 kHz?

Yes

Repair connections

and/or replace flex

and microphone

No Problem

found.

End

Probe V oltage at U509, pin 5

1 kHz Signal

present at approx.

14 mV rms?

Yes

6881094C31-D July 21, 2004

Verify Integrity

of Mic path up

to U509

Problem

with Mic path

components?

Yes

Replace appropriate component

MAEPF-27396-O

Page 98

5-20 Troubleshooting Charts: VOCON TX Audio—Page 1

VOCON TX Audio—Page 2

Use an oscilloscope to check the SSI audio signals from the GCAP (U703). The following test points are used for data collection: DCLK: 520 kHz Square Wave Clock*

256 kHz Square Wave Clock** TX: Audio Data Words SYNC: 8 kHz Frame Sync Pulse

* on NTN9564, NNTN4563 & NNTN4819 VOCON boards ** on NNTN4717 VOCON board

Clock

and Frame Sync

present?

Yes

Data

present at TX

test point?

Yes

Go to

TX RF

flowchart

Replace

U509

(EEPOT)

Replace U301*

Replace U401**

(Flipper ASIC)

Replace U501

(GCAP II)

1 kHz signal

present at about

14 mV

rms?

* on NTN9564, NNTN4563 & NNTN4819 VOCON board ** on NNTN4717 VOCON board

Problem

Resolved?

Yes

End

Yes

Replace

U501

(GCAP II)

July 21, 2004 6881094C31-D

Problem Solved?

Yes

End

MAEPF-27397-A

Page 99

Troubleshooting Charts: VOCON RX Audio 5-21

5.13 VOCON RX Audio—Page 1

Bad SINAD

Bad 20db Quieting

No Recovered Audio

A standard input is an

Inject Standard

Input into Antenna

Connector

Check Preamp

Input Signal at

C533

RF signal with a 1 kHz tone modulated with 3 kHz deviation in a 25 kHz channel.

Signal

Present?

Yes

Check

Distortion of

Signal at C533

THD <3%?

Yes

wavef orm, T r ace 2

Probe R403 for Data, Compare

with RX SAP

Probe R405

for Clock Signal,

Data

Present?

Yes

Replace U501

(GCAP II)

Go to

RX RF

flowchart

* on NTN9564, NNTN4563 & NNTN4819 VOCON boards ** on NNTN4717 VOCON board

NoNo

wavef orm, T r ace 3

Compare with

RX SAP

Yes

Clock

Present?

Yes

Probe R406 for

Frame Sync Signal,

Compare with

RX SAP waveform,

Trace 1

Frame

Sync

Present?

Replace U301* Replace U401**

(FLIPPER)

MAEPF-27394-A

6881094C31-D July 21, 2004

Page 100

5-22 Troubleshooting Charts: VOCON RX Audio

VOCON RX Audio—Page 2

Check Preamp

Output Signal

at C530

Signal

Present?

Yes

Distortion

>3%?

Preamp Gain

= 2.8 V/V?

Yes

PA Gain

= 11.2 V/V?

Yes

Check Preamp

U502 and its

associated

components

Check Audio PA

U503 and its Components

Make sure that you look at all solder contacts. Check resistors and capacitors associated with this check. If all look fine, then replace U502.

Make sure that you look at all solder contacts. Check resistors and capacitors associated with this check. If all look fine, then replace U503.

Distortion

>3%?

Check Flex

Connector

July 21, 2004 6881094C31-D

Yes

MAEPF-27395-O

Motorola ASTRO XTS 5000 Detailed Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual