Motorola GP328, GP338 service manual

GP328/GP338

Portable Radios

Detailed Service Manual

6804110J64-F

June, 2002

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 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 or reproduced 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 royalty-free license to use that arises by operation of law in the sale of a product.

1999, 2000, 2001, 2002 by Motorola, Inc.
Motorola Technology Sdn. Bhd. (Co. No. 455657-H)
Bayan Lepas FIZ Phase III
11900 Penang, Malaysia

Printed in Malaysia
June, 2002

SAFETY AND GENERAL INFORMATION

Information and Instructions on RF Energy Exposure and Product Safety

READ THIS IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATION BEFORE
USING YOUR MOTOROLA HANDHELD PORTABLE TWO-WAY RADIO

The information provided in this document supersedes the general safety information contained in user guides
published prior to June 2001. For information regarding radio use in a hazardous atmosphere please refer to the
Factory Mutual (FM) Approval Product Listing Manual or Instruction Card, which is i ncluded with radio models
that offer this capability.

Compliance with RF Energy Exposure Standards

Your Motorola two-way radio is designed and tested to comply with a number of national and international
standards and guidelines (listed below) regarding human exposure to radio frequency electromagnetic energy.
This radio complies with the IEEE (FCC) and ICNIRP exposure limits for occupational/controlled RF exposure
environmentat duty cycles of up to 50% talk-50% listen and should be used for occupational use only. In terms of
measuring RF energy for compliance with the FCC exposure guidelines, your radio radiates measurable RF
energy only while it is transmitting (during talking), not when it is receiving (listening) or in standby mode. Note
that the approved, supplied batteries for this radio are rated for a 5-5-90 duty cycle (5% talk - 5% listen - 90%
standby),even though this radio complies with the FCC occupational exposure limits at duty cycles of up to 50%
talk.

Your Motorola two-way radio complies with the following RF energy exposure standards and guidelines:

• United States Federal Communications Commission, Code of Federal Regulations; 47CFR part
2 sub-part J

• American National Standards Institute (ANSI) / Institute of Electrical and Electronic Engineers
(IEEE) C95. 1-1992

• Institute of Electrical and Electronic Engineers (IEEE) C95.1-1999 Edition

• International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998

• Ministry of Health (Canada) Safety Code 6. Limits of Human Exposure to Radio frequency Elec­tromagnetic Fields in the Frequency Range from 3 kHz to 300 GHz, 1999

• Australian Communications Authority Radiocommunications (Electromagnetic Radiation ­Human Exposure) Standard 2001

• ANATEL, Brazil Regulatory Authority, Resolution 256 (April 11, 2001) “additional requirements
for SMR, cellular and PCS product certification.”

i

Operational Instructions and Training Guidelines

To ensure optimal performance and compliance with the occupational/controlled environment RF energy
exposure limits in the above standards and guidelines, users should transmit no more than 50% of the time and
always adhere to the following procedures:

Transmit and Receive

To transmit (talk), push the Push-To-Talk (PTT) button; to receive, release the PTT button.

Hand-held Radio Operation

Hold the radio in a vertical position with the microphone one to two
inches (2.5 to 5 cm) away from the lips.

Body-worn Operation

Always place the radio in a Motorola approved clip, holder,holster, case,
or body harness for this product. Use of non-Motorola-approved
accessories may exceed FCC RF exposure guidelines.

If you do not use a Motorola approved body-worn accessory and are not
using the radio in the intended use position in front of the face, then ensure the antenna and the radio are kept

2.5 cm (one inch) from the body when transmitting.

2.5to5.0cm
(1 to 2 in.)

ii

Antennas & Batteries

Use only Motorola approved supplied antenna or Motorola approved replacement antenna.

Unauthorized antennas, modifications, or attachments could damage the radio and may violate FCC regulations.

Use only Motorola approved supplied batteries or Motorola approved replacement batteries.

Use of non-Motorola-approved antennas or batteries may exceed FCC RF exposure guidelines.

Approved Accessories

For a list of approved Motorola accessories please contact your dealer, or local Motorola representative.

ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY

NOTE

Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately
shielded, designed, or otherwise configured for electromagnetic compatibility.

Facilities

To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any facility where
posted notices instruct you to do so. Hospitalsor health care facilities may be using equipment that is sensitiveto
external RF energy.

Aircraft

When instructed to do so, turn off your radio when on board an aircraft. Any use of a radio must be in accordance
with applicable regulations per airline crew instructions.

Medical Devices

• Pacemakers

The Advanced Medical Technology Association (AdvaMed) recommends that a minimum separation of 6 inches
(15 centimeters)be maintained between a handheld wireless radio and a pacemaker. These recommendations
are consistent with those of the U.S. Food and Drug Administration.

Persons with pacemakers should:

• ALWAY S keep the radio more than 6 inches (15 centimeters ) from their pacemaker when the
radio is turned ON.

• not carry the radio in the breast pocket.

• use the ear opposite the pacemaker to minimize the potential for interference.

• turn the radio OFF immediately if you have any reason to suspect that interference is taking
place.

• Hearing Aids

Some digital wireless radios may interfere with some hearing aids. In the event of such interference, you may
want to consult your hearing aid manufacturer to discuss alternatives.

• Other Medical Devices

If you use any other personal medical device, consult the manufacturer of your device to determine if it is
adequately shielded from RF energy. Your physician may be able to assist you in obtaining this information.

Driver Safety

Check the laws and regulations on the use of radios in the area where you drive. Always obey them.
When using your radio while driving, please:

• Give full attention to driving and to the road.

• Use hands-free operation, if available.

• Pull off the road and park before making or answering a call if driving conditions so require.

OPERATIONAL WARNINGS

iii

For Vehicles With an Air Bag

Do not place a portable radio in the area over an air bag or in the air bag deployment area. Air
bags inflate with great force. If a portable radio is placed in the air bag deployment area and the
air bag inflates, the radio may be propelled with great force and cause serious injury to
occupants of the vehicle.

Potentially Explosive Atmospheres

Turn off your radio prior to entering any area with a potentially explosive atmosphere, unless it is a radio type
especially qualified for use in such areas as “Intrinsically Safe” (for example, Factory Mutual, CSA, UL, or
CENELEC). Do not remove, install, or charge batteries in such areas. Sparks in a potentially explosive
atmosphere can cause an explosion or fire resulting in bodily injury or even death.

NOTE

The areas with potentially explosive atmospheres referred to above include fueling areas
such as below decks on boats, fuel or chemical transfer or storage facilities, and areas
where the air contains chemicals or particles, such as grain, dust or metal powders. Areas
with potentially explosive atmospheres are often but not always posted.

Blasting Caps and Areas

To avoid possible interference with blasting operations, turn off your radio when you are near electrical blasting
caps, in a blasting area, or in areas posted: “Turn off two-way radio.” Obey all signs and instructions.

OPERATIONAL CAUTIONS

!

!

W A R N I N G

Antennas

Do not use any portable radio that has a damaged antenna. If a damaged antenna comes into
contact with your skin, a minor burn c an result.

Batteries

All batteries can cause property damage and/or bodily injury such as burns if a conductive material such as
jewelry, keys, or beaded chains touch exposed terminals. The conductive material may complete an electrical
circuit (short circuit) and become quite hot. Exercise care in handling any charged battery, particularly when
placing it inside a pocket, purse, or other container with metal objects.

!

C a u t i o n

iv

Table of Contents

v

Section 1

1.0 Scope of Manual..................................................................................................1-1

2.0 Warranty and Service Support.............................................................................1-1

2.1 Warranty Period .............................................................................................1-1

2.2 After Warranty Period.....................................................................................1-1

2.3 Piece Parts.....................................................................................................1-2

2.4 Technical Support ..........................................................................................1-2

Section 2

1.0 Recommended Test Tools...................................................................................2-1

Section 3

1.0 Error Codes .........................................................................................................3-1

Section 4

1.0 Overview..............................................................................................................4-1

2.0 Radio Power Distribution.....................................................................................4-1

3.0 Controller Board...................................................................................................4-2

3.1 General...........................................................................................................4-2

3.2 Digital Architecture.........................................................................................4-3

3.3 Controller Schematics (330-400MHz for 8485726Z01, 403-470MHz for

Complete Controller Schematic Diagram...............................................................4-5

Controller ASFIC/ON_OFF Schematic Diagram ....................................................4-6

Controller Micro Processor Schematic Diagram ....................................................4-7

Controller Memory Schematic Diagram .................................................................4-8

Controller Audio Power Amplifier Schematic Diagram...........................................4-9

Controller Interface Schematic Diagram ..............................................................4-10

3.4 Controller Schematics (330-400MHz for 8485726Z04, 403-470MHz for

Complete Controller Schematic Diagram.............................................................4-11

Controller ASFIC/ON_OFF Schematic Diagram ..................................................4-12

Controller Micro Processor Schematic Diagram ..................................................4-13

Controller Memory Schematic Diagram ...............................................................4-14

Controller Audio Power Amplifier Schematic Diagram.........................................4-15

Controller Interface Schematic Diagram ..............................................................4-16

3.5 Controller Schematics (136-174MHz for 8486062B09 & 8486062B12).......4-17

Complete Controller Schematic Diagram.............................................................4-17

Introduction

Service Aids

Power Up Self-Test

Controller Information

8480450Z03 & 450-527MHz for 8485641Z02)...............................................4-5

8480450Z13 & 450-527MHz for 8485641Z06).............................................4-11

vi

Controller ASFIC/ON_OFF Schematic Diagram...................................................4-18

Controller Micro Processor Schematic Diagram...................................................4-19

Controller Memory Schematic Diagram................................................................4-20

Controller Audio Power Amplifier Schematic Diagram..........................................4-21

Controller Interface Schematic Diagram...............................................................4-22

3.6 Controller Schematics (136-174MHz) for PCB 8486062B16........................4-23

Complete Controller Schematic Diagram..............................................................4-23

Controller ASFIC/ON_OFF Schematic Diagram...................................................4-24

Controller Micro Processor Schematic Diagram...................................................4-25

Controller Memory Schematic Diagram................................................................4-26

Controller Audio Power Amplifier Schematic Diagram..........................................4-27

Controller Interface Schematic Diagram...............................................................4-28

3.7 Controller Schematics (29-42/35-50MHz) ....................................................4-29

Controller H ierarchical Diagram............................................................................4-29

Complete Controller Schematic Diagram..............................................................4-30

Controller ASFIC/ON_OFF Schematic Diagram...................................................4-31

Controller Microprocessor Schematic Diagram ...................................................4-32

Controller Interface and Memory Schematic Diagram..........................................4-33

Controller Audio Power Amplifier Schematic Diagram..........................................4-34

Section 5

Keypad Board Information

1.0 Theory of Operation.............................................................................................5-1

2.0 Troubleshooting Chart..........................................................................................5-2

3.0 Parts List (Keypad Basic).....................................................................................5-3

4.0 Keypad Board And Schematic Diagram...............................................................5-5

Keypad Board Top and Bottom View (PCB No. 8480574Z05)...............................5-5

Keypad Board Schematic Diagram.........................................................................5-6

Section 6A

Model Chart and Test Specifications (403-470 Mhz)

1.0 Model Chart.......................................................................................................6A-1

2.0 Specifications....................................................................................................6A-3

3.0 Transmitter........................................................................................................6A-4

3.1 General........................................................................................................6A-4

4.0 Receiver............................................................................................................6A-6

4.1 Receiver Front-End......................................................................................6A-6

4.2 Receiver Back-End......................................................................................6A-7

4.3 Automatic Gain Control Circuit ....................................................................6A-8

5.0 Frequency Generation Circuitry ........................................................................6A-9

5.1 Synthesizer................................................................................................6A-10

5.2 VCO - Voltage Controlled Oscillator ..........................................................6A-11

6.0 Notes For All Schematics and Circuit Boards .................................................6A-13

7.0 Circuit Board/Schematic Diagrams and Parts List ..........................................6A-15

UHF (403-470MHz) Main Board Top Side PCB No. 8480450Z03.....................6A-15

UHF (403-470MHz) Main Board Bottom Side PCB No. 8480450Z03 ...............6A-16

vii

UHF Controls And Switches Schematic Diagram ..............................................6A-17

UHF Receiver Front End Schematic Diagram....................................................6A-18

UHF Receiver Back End Schematic Diagram....................................................6A-19

UHF Synthesizer Schematic Diagram................................................................6A-20

UHF Voltage Controlled Oscillator Schematic Diagram.....................................6A-21

UHF Transmitter Schematic Diagram ................................................................6A-22

UHF Radio Parts List..........................................................................................6A-23

8.0 Circuit Board/Schematic Diagrams and Parts List...........................................6A-26

UHF (403-470MHz) Main Board Top Side PCB No. 8480450Z13.....................6A-26

UHF (403-470MHz) Main Board Bottom Side PCB No. 8480450Z13................6A-27

UHF Controls And Switches Schematic Diagram ..............................................6A-28

UHF Receiver Front End Schematic Diagram....................................................6A-29

UHF Receiver Back End Schematic Diagram....................................................6A-30

UHF Synthesizer Schematic Diagram................................................................6A-31

UHF Voltage Controlled Oscillator Schematic Diagram.....................................6A-32

UHF Harmonic Filter Schematic Diagram..........................................................6A-33

UHF Transmitter Schematic Diagram ................................................................6A-34

UHF Radio Parts List..........................................................................................6A-35

9.0 Troubleshooting charts....................................................................................6A-39

Troubleshooting Flow Chart for Controller .........................................................6A-39

Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)....................................6A-40

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)....................................6A-41

Troubleshooting Flow Chart for Transmitter.......................................................6A-42

Troubleshooting Flow Chart for Synthesizer ......................................................6A-43

Troubleshooting Flow Chart for VCO .................................................................6A-44

Section 6B

Model Chart and Test Specifications (136-174 Mhz)

1.0 Model Chart.......................................................................................................6B-1

2.0 Specifications.....................................................................................................6B-3

3.0 Transmitter.........................................................................................................6B-4

3.1 General.........................................................................................................6B-4

4.0 Receiver.............................................................................................................6B-6

4.1 Receiver Front-End......................................................................................6B-6

4.2 Receiver Back-End.......................................................................................6B-7

4.3 Automatic Gain Control Circuit.....................................................................6B-8

5.0 Frequency Generation Circuitry.........................................................................6B-9

5.1 Synthesizer.................................................................................................6B-10

5.2 VCO - Voltage Controlled Oscillator...........................................................6B-11

6.0 Notes For All Schematics and Circuit Boards..................................................6B-13

7.0 Circuit Board/Schematic Diagrams and Parts List...........................................6B-15

VHF (136-174MHz) Main Board Top Side PCB No. 8486062B09.....................6B-15

VHF (136-174MHz) Main Board Bottom Side PCB No. 8486062B09................6B-16

VHF (136-174MHz) Main Board Top Side PCB No. 8486062B12.....................6B-17

VHF (136-174MHz) Main Board Bottom Side PCB No. 8486062B12................6B-18

VHF Controls And Switches Schematic Diagram...............................................6B-19

viii

VHF Receiver Front End Schematic Diagram ...................................................6B-20

VHF Receiver Back End Schematic Diagram....................................................6B-21

VHF Synthesizer Schematic Diagram................................................................6B-22

VHF Voltage Controlled Oscillator Schematic Diagram.....................................6B-23

VHF Transmitter Schematic Diagram ................................................................6B-24

VHF Radio Parts List .........................................................................................6B-25

8.0 Circuit Board/Schematic Diagrams and Parts List ..........................................6B-29

VHF (136-174MHz) Main Board Top Side PCB No. 8486062B16..................... 6B-29

VHF (136-174MHz) Main Board Bottom Side PCB No. 8486062B16 ...............6B-30

VHF Controls And Switches Schematic Diagram..............................................6B-31

VHF Receiver Front End Schematic Diagram ...................................................6B-32

VHF Receiver Back End Schematic Diagram....................................................6B-33

VHF Synthesizer Schematic Diagram................................................................6B-34

VHF Voltage Controlled Oscillator Schematic Diagram.....................................6B-35

VHF Transmitter Schematic Diagram ................................................................6B-36

VHF Radio Parts List .........................................................................................6B-37

9.0 Troubleshooting charts....................................................................................6B-41

Troubleshooting Flow Chart for Controller.........................................................6B-41

Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)....................................6B-42

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)....................................6B-43

Troubleshooting Flow Chart for Transmitter ......................................................6B-44

Troubleshooting Flow Chart for Synthesizer......................................................6B-45

Troubleshooting Flow Chart for VCO.................................................................6B-46

Section 6C

Model Chart and Test Specifications (450-527 Mhz)

1.0 Model Chart.......................................................................................................6C-1

2.0 Specifications....................................................................................................6C-2

3.0 Transmitter........................................................................................................6C-3

3.1 General........................................................................................................6C-3

4.0 Receiver............................................................................................................6C-5

4.1 Receiver Front-End......................................................................................6C-5

4.2 Receiver Back-End......................................................................................6C-6

4.3 Automatic Gain Control Circuit ....................................................................6C-7

5.0 Frequency Generation Circuitry ........................................................................6C-8

5.1 Synthesizer..................................................................................................6C-9

5.2 VCO - Voltage Controlled Oscillator ..........................................................6C-10

6.0 Notes For All Schematics and Circuit Boards.................................................6C-12

7.0 Circuit Board/Schematic Diagrams and Parts List ..........................................6C-13

UHF Band 2 (450-527MHz) Main Board Top Side PCB No. 8485641Z02........6C-13

UHF Band 2 (450-527MHz) Main Board Bottom Side PCB No. 8485641Z02...6C-14

UHF Band 2 Controls And Switches Schematic Diagram..................................6C-15

UHF Band 2 Receiver Front End Schematic Diagram.......................................6C-16

UHF Band 2 Receiver Back End Schematic Diagram.......................................6C-17

UHF Band 2 Synthesizer Schematic Diagram...................................................6C-18

UHF Band 2 Voltage Controlled Oscillator Schematic Diagram........................6C-19

UHF Band 2 Transmitter Schematic Diagram................................................... 6C-20

UHF Band 2 Radio Parts List............................................................................ 6C-21

8.0 Circuit Board/Schematic Diagrams and Parts List.......................................... 6C-25

UHF Band 2 (450-527MHz) Main Board Top Side PCB No. 8485641Z06........ 6C-25

UHF Band 2 (450-527MHz) Main Board Bottom Side PCB No. 8485641Z06 .. 6C-26

UHF Band 2 Controls And Switches Schematic Diagram................................. 6C-27

UHF Band 2 Receiver Front End Schematic Diagram...................................... 6C-28

UHF Band 2 Receiver Back End Schematic Diagram....................................... 6C-29

UHF Band 2 Synthesizer Schematic Diagram .................................................. 6C-30

UHF Band 2 Voltage Controlled Oscillator Schematic Diagram........................ 6C-31

UHF Band 2 Transmitter Schematic Diagram................................................... 6C-32

UHF Band 2 Radio Parts List............................................................................ 6C-33

9.0 Troubleshooting charts................................................................................... 6C-37

Troubleshooting Flow Chart for Controller ........................................................ 6C-37

Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)................................... 6C-38

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)................................... 6C-39

Troubleshooting Flow Chart for Transmitter...................................................... 6C-40

Troubleshooting Flow Chart for Synthesizer ..................................................... 6C-41

Troubleshooting Flow Chart for VCO ................................................................ 6C-42

ix

Section 6D

Model Chart and Test Specifications (330-400 Mhz)

1.0 Model Chart...................................................................................................... 6D-1

2.0 Specifications.................................................................................................... 6D-2

3.0 Transmitter........................................................................................................ 6D-3

3.1 General........................................................................................................ 6D-3

4.0 Receiver............................................................................................................ 6D-5

4.1 Receiver Front-End.....................................................................................6D-5

4.2 Receiver Back-End...................................................................................... 6D-6

4.3 Automatic Gain Control Circuit.................................................................... 6D-7

5.0 Frequency Generation Circuitry........................................................................ 6D-8

5.1 Synthesizer.................................................................................................. 6D-9

5.2 VCO - Voltage Controlled Oscillator.......................................................... 6D-10

6.0 Notes For All Schematics and Circuit Boards................................................. 6D-12

7.0 Circuit Board/Schematic Diagrams and Parts List.......................................... 6D-13

330-400MHz Main Board Top Side PCB No. 8485726Z01............................... 6D-13

330-400MHz Main Board Bottom Side PCB No. 8485726Z01.......................... 6D-14

330-400MHz Controls And Switches Schematic Diagram ................................ 6D-15

330-400MHz Receiver Front End Schematic Diagram .....................................6D-16

330-400MHz Receiver Back End Schematic Diagram...................................... 6D-17

330-400MHz Synthesizer Schematic Diagram.................................................. 6D-18

330-400MHz Voltage Controlled Oscillator Schematic Diagram....................... 6D-19

330-400MHz Transmitter Schematic Diagram .................................................. 6D-20

330-400MHz Radio Parts List ........................................................................... 6D-21

x

8.0 Circuit Board/Schematic Diagrams and Parts List ..........................................6D-24

330-400MHz Main Board Top Side PCB No. 8485726Z04 ...............................6D-24

330-400MHz Main Board Bottom Side PCB No. 8485726Z04..........................6D-25

330-400MHz C ontrols And Switches Schematic Diagram.................................6D-26

330-400MHz Receiver Front End Schematic Diagram......................................6D-27

330-400MHz R eceiver Back End Schematic Diagram ......................................6D-28

330-400MHz Synthesizer Schematic Diagram..................................................6D-29

330-400MHz Voltage Controlled Oscillator Schematic Diagram .......................6D-30

330-400MHz Transmitter Schematic Diagram...................................................6D-31

330-400MHz R adio Parts List............................................................................6D-32

9.0 Troubleshooting charts....................................................................................6D-37

Troubleshooting Flow Chart for Controller.........................................................6D-37

Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)....................................6D-38

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)....................................6D-39

Troubleshooting Flow Chart for Transmitter ......................................................6D-40

Troubleshooting Flow Chart for Synthesizer......................................................6D-41

Troubleshooting Flow Chart for VCO.................................................................6D-42

Section 6E

Model Charts and Test Specifications (29-42/35-50Mhz)

1.0 Model Charts.....................................................................................................6E-1

1.1 29-42MHz ....................................................................................................6E-1

1.2 35-50MHz ....................................................................................................6E-2

2.0 Specifications....................................................................................................6E-3

3.0 Transmitter........................................................................................................6E-4

3.1 General........................................................................................................6E-4

4.0 Receiver............................................................................................................6E-6

4.1 Receiver Front-End......................................................................................6E-6

4.2 Receiver Back-End......................................................................................6E-7

4.3 Automatic Gain Control Circuit ....................................................................6E-7

5.0 Frequency Generation Circuitry ........................................................................6E-8

5.1 Synthesizer..................................................................................................6E-9

5.2 VCO - Voltage Controlled Oscillator ..........................................................6E-10

6.0 Notes For All Schematics and Circuit Boards .................................................6E-11

7.0 Circuit Board/Schematic Diagrams and Parts List ..........................................6E-13

Lowband 29-42/35-50MHz Main Board Top Side PCB No. 8486291A02 .........6E-13

Lowband 29-42/35-50MHz Main Board Bottom Side PCB No. 8486291A02...6E-14

Lowband 29-42/35-50MHz Controls And Switches Schematic Diagram...........6E-15

Lowband 29-42/35-50MHz Overall Receiver Schematic Diagram.....................6E-16

Lowband 29-42/35-50MHz Receiver Front End Schematic Diagram................6E-17

Lowband 29-42/35-50MHz Receiver Back End Schematic Diagram.................6E-18

Lowband 29-42/35-50MHz Synthesizer Schematic Diagram ............................6E-19

Lowband 29-42/35-50MHz Voltage Controlled Oscillator Schematic Diagram..6E-20

Lowband 29-42/35-50MHz Transmitter Schematic Diagram.............................6E-21

Lowband 29-42/35-50MHz Radio Parts List......................................................6E-22

8.0 Troubleshooting charts....................................................................................6E-25

Troubleshooting Flow Chart for Controller .........................................................6E-25

Troubleshooting Flow Chart for Receiver (Sheet 1 of 2)....................................6E-26

Troubleshooting Flow Chart for Receiver (Sheet 2 of 2)....................................6E-27

Troubleshooting Flow Chart for Transmitter.......................................................6E-28

Troubleshooting Flow Chart for Synthesizer ......................................................6E-29

Troubleshooting Flow Chart for VCO .................................................................6E-30

xi

Section 7

Flex Layout/Schematic Diagrams and Parts Lists

1.0 Keypad-Controller Interconnect Flex...................................................................7-1

2.0 Schematic for Keypad-Controller Interconnect Flex ............................................7-1

3.0 Parts List for Keypad-Controller Interconnect Flex..............................................7-2

4.0 Universal Connector Flex ....................................................................................7-2

5.0 Schematic for Universal Connector Flex .............................................................7-3

6.0 Parts List for Universal Connector Flex...............................................................7-3

xii

Section 1
INTRODUCTION

1.0 Scope of Manual

This manual is intended for use by service technicians familiar with similar types of equipment. It
contains service information required for the equipment described and is current as of the printing
date. Changes which occur after the printing date may be incorporated by a complete Manual revision
or alternatively as additions.

1-1

NOTE

Before operating or testing these units, please read the Safety Information Section in the
front of this manual.

2.0 Warranty and Service Suppo rt

Motorola offers long term support for its products. This support includes full exchange and/or repair of
the product during the warranty period, and service/repair or spare parts support out of warranty. Any
"return for exchange" or "return for repair" by an authorised Motorola Dealer must be accompanied by
a Warranty Claim Form. Warranty Claim Forms are obtained by contacting an Authorised Motorola
Dealer.

2.1 Warranty Period

The terms and conditions of warranty are defined fully in the Motorola Dealer or Distributor or Reseller
contract. These conditions may change from time to time and the following notes are for guidance
purposes only.

In instances where the product is covered under a "return for replacement" or "return for repair"
warranty, a check of the product should be performed prior to shipping the unit back to Motorola. This
is to ensure that the product has been correctly programmed or has not been subjected to damage
outside the terms of the warranty.

Prior to shipping any radio back to the appropriate Motorola warranty depot, please contact Customer
Services. All returns must be accompanied by a Warranty Claim Form, available from your Customer
Services representative. Products should be shipped back in the original packaging, or correctly
packaged to ensure no damage occurs in transit.

2.2 After Warranty Period

After the Warranty period, Motorola continues to support its products in two ways.

1. Motorola's Accessories and Aftermarket Division (AAD) offers a repair service to both end
users and dealers at competitive prices.

2. AAD supplies individual parts and modules that can be purchased by dealers who are techni­cally capable of performing fault analysis and repair.

1-2 Warranty and Service Support

2.3 Piece Parts

Some replacement parts, spare parts, and/or product information can be ordered directly. If a
complete Motorola part number is assigned to the part, it is available from Motorola’s Accessories
and Aftermarket Division (AAD). If no part number is assigned, the part is not normally available
from Motorola. If the part number is appended with an asterisk, the part is serviceable by Motorola
Depot only. If a parts list is not included, this generally means that no user-serviceable parts are
available for that kit or assembly.

All orders for parts/information should include the complete Motorola identification number. All part
orders should be directed to your local AAD office. Please refer to your latest price pages.

2.4 Technical Support

Technical support is available to assist the dealer/distributor in resolving any malfunction which may
be encountered. Initial contact should be by telephone wherever possible. When contacting
Motorola Technical Support, be prepared to provide the product model number and the unit’sserial

number.

Toll-Free

Country or Territory Number

China 800-810-0976
Indonesia 0800-1-686868
Malaysia 1800-801687
Philippines 1800-16510271
Singapore 1800-4855333
Thailand 1800-225412

Non-Toll-Free

Country or Territory Number

China (86-10) 6843-8231
Hong Kong SAR (852) 2966-4188
India (91) 80-658-7677-7678
Indonesia (62-21) 251-3050
Korea (822) 3466-5401
Malaysia (603) 7803-9922
Philippines (63-2) 810-0762
Singapore (65) 486-7171
Taiwan (886) 2-27058000 ext. 6308
Thailand (66) 2254-8388
Vietnam (84) 8-8294091
All Other Countries IDD code + (65) 4855333

Section 2
SERVICE AIDS

1.0 Recommended Test Tools

Table 2-1 lists the tools recommended for working on this family of radios. These tools are also
available from Motorola.

Table 2-1: Recommended Test Tools

Motorola Part No. Description Application

2-1

6680387A59
6680387A64

6680387A65
0180382A31

6680375A74
0180386A81

0180386A78

0180386A82
6684253C72
6680384A98
1010041A86

1080370B43

R-1070A

or R-1319A

Extractor, 2-contact
Heat controller with safety
stand or
Safety stand only
Portable desoldering unit

0.025 replacement tip, 5/pk
Miniature digital readout
soldering station (incl. 1/64”
micropoint tip)
Illuminated magnifying
glass with lens attachment.

Anti-static grounding kit
Straight prober
Brush
Solder (RMA type),
63/37, 0.020” diameter
1 lb. spool
RMA liquid flux

Shields and surface­mounted component - IC
removal/rework station
(order all heat-focus heads
separately)
Shields and surface­mounted component - IC
removal/rework station
SMD10000 M.A.P.E.

Removal of discrete surface-mounted devices

For 0180382A31 portable desoldering unit.

Used during all radio assembly and disassem­bly procedures

Removal and assembly of surface-mounted
integrated circuits and shields

Removal and assembly of surface-mounted
integrated circuits and shields

2-2 Recommended Test Tools

Section 3
POWER UP SELF-TEST

1.0 Error Codes

Turning on the radio using the on/off volume control startsa self-test routine which checks the RAM,
ROM checksum, EEPROM hardware and EEPROM checksum. If these checks are successfully
completed, the radio will generate the Self-Test Pass Tone. If the self-test is not successful, a “bonk”
is heard. Radios with displays are able to display these error messages:

• “RAM TST ERROR” for <RAM Test Error>

• “ROM CS ERROR” for <ROM Checksum Error>

•

“EEPRM HW ERROR” for <E EPROM Hardware Test E rror>

• “EEPRM CS ERROR” for < EEPROM Checksum Error>

3-1

NOTE

Radio without display emits only “bonk” (300 Hz) tone if it fails the self-test.

Error Code Explanation Corrective Action

“RAM TST ERROR” RAM Test Failure Retest radio by turning it off and turning it on again. If

message reoccurs, replace RAM (U405).

“ROM CS ERROR” ROM Checksum is

wrong.

“EEPRM HW ERROR” Codeplug structure

mismatch, non
existence of
codeplug.

“EEPRM CS ERROR” Codeplug check-

sum is wrong.

No Display Display module is

not connected
properly.
Display module is
damaged.

Reprogram FLASH Memory, then retest. If message
reoccurs, replace ROM (U406).

Reprogram codeplug with correct version and retest
radio. If message reoccurs, replace EEPROM
(U407).

Reprogram codeplug.

Check connection between main board and display
module.

Replace with new display module.

3-2 Error Codes

Section 4
CONTROLLER INFORMATION

1.0 Overview

This section provides a detailed theory of operation for the radio and its components.

2.0 Radio Power Distribution

7.5V

Battery

UNSWB+

Fuse

3.5V
Reg.

LI Ion

MECH.
SWB+

Low Battery

PA, Driver

PCIC(ALC)

On/Off Switch

Detect

Audio PA

Control

SWB+

Ant. SW

R5
R1

4.0V/3.3V

Vddd
Reg.

TX.
Led

Vdda

Reg.

RF.AMP, IF AMP

R3

R2

MCU MicroP,ROM

&EEPROM

5V

Reg.

5V

Ext. RX.

Buffer (NU)

Int/Ext Vdd

Accessories

20 pin Connector

Keypad/Option Board

Prime ExpansionBoard

Vddd

Switching

R4

Vdda

Jumpers

SW. Reg. N N

Reg.

LCD

ASFIC_CMP

Driver

Dual Vdd

Regulator

Scheme

R1 Y Y
R2 N N
R3 N Y
R4 N N
R5 Y N

Vdda Y N

FRACTN
VCOBIC

Single Vdd

Regulator

Scheme

4-1

LVZIF

Figure 4-1: DC Power Distribution Block Diagram

Figure 4-1 illustrates the DC distribution throughout the radio board. A 7.5V battery (BATT 7.5V)
supplies power directly to the electronic on/off control as UNSWB+. When the radio is turned on,
MECH_SWB+ (on/off/volume control) will trigger the electronic on/off control(momentary-on path),
then SWB+ is distributed as shown in Figure 4-1. Vdda from 3.3V Vdda regulator will then supply the
microprocessor. Data is then sent to ASFIC_CMP to turn on GCB4(DAC). GCB4 will take over the
momentary-on path within 12ms. SWB+ will continue to support the whole board until the radio is
turned off.

Radio will be turned-off on two conditions;

1. MECH_SWB+ turned off

2. Low battery

4-2 Controller Board

When low battery level is detected by the microprocessor through both conditions above, it will store
the radio personality data to EEPROM before turning off.

3.0 Controller Board

3.1 General

The controller board is the central interface between the various subsytems of the radio. It is
separated into digital and audio architectures. The digital portion consists of a special Motorola
microcontroller (HC11FL0). The audio power amplifier (Audio PA) and audio/signalling/filter/
companding IC (ASFIC_CMP) form the backbone of the audio/signalling architecture.

External
Microphone

Internal
Microphone

External
Speaker

16.8 MHz
Reference Clock
from Synthesizer

Recovered Audio

Squelch

To Synthesizer

Mod
Out

ASFIC_CMP

Audio/Signalling

Architecture

Audio

PA

To RF Board

3.3V

Regulator

(Vdda)

SPI

Digital

Architecture

3.3V

Regulator

(Vddd)

Figure 4-2: Controller Block Diagram

RAM

EEPROM

ROM

µPClock

HC11FL0

Internal
Speaker

SCI to Side
Connector

Controller Board 4-3

3.2 Digital Architecture

MCU configuration

There is one common MCU architecture for low-tier as well as for the high-tier products. It covers the
Conventional and Trunking portables. An open architecture system with the new HC11FL0 as the
processor is used. Combinations of different size RAM, ROM and EEPROM are available for various
application software.

REAL TIME CLOCK (RTC)

This radio supports Real Time Clock (RTC) module for purposes of Message Time Stamping and
Time Keeping. The RTC module resides in the micro-processor HC11FL0. It is kept alive by a back­up Lithium Ion battery when the primary battery is removed.

UNSWB+

HC11FL0

MODA
MODB

Vddd

R461

Q416

R463

300

1
2
3

3

Q417

PI6

R420

PI7

R426

FL401

38.4kHz
GND

OUT

IN

C436

C437

UNSWB+

C435

CR411

15

2

1

R462

6

4

4

2

3

CR413

51
4
3

2

TP405
TEST_POINT

SWB+

R460

2

LI_ION

1

U410

VOUT

VIN

VSS

1

R419

BOOT_CTRL

3.3V
3

C434

Figure 4-3: RTC Circuit

Circuit Description

The RTC module which resides in the HC11FL0 is powered by the ModB/Vstby pin and PI6/PI7 form
the crystal oscillator circuit. Clock frequency of 38.4kHz from a crystal oscillator provides the
reference signal. In the processor, the frequency is divided down to 1Hz.

As the RTC module is powered separately from the processor Vdd, the RTC is kept alive through the
ModB / Vstby pin when the radio is switched off. A small button Lithium Ion battery continues to feed
the RTC when the primary battery is removed.

A MOSFET Q416 switches in the LiO supply when Vdd is removed. Q416 also provides isolation from
BOOT_CTRL function in the event of radio program flashing. A small 3.3V regulator is used to charge
the LiO battery.

4-4 Controller Board

ModB/Vstby Supply

Under various conditions, the supply to the ModB/Vstby would vary. Table 4-1 shows these
conditions and circuits in operation.

Table 4-1: ModB/Vstby Supply Modes

Condition Circuit Operation

Radio On Vdd supply voltage via CR411
Radio Off • Vdd turned off

• Q416 gate is pulled low by R462

• Q416 is switched on

• U410 supplies 3.2V to ModB/Vstby

Primary battery removed • Vdd turned off

• Q416 gate is pulled low by R462

• Q416 is switched on

• LiO battery provides 3.2V to ModB/Vstby

Flash Mode • Boot_Ctrl line pull low

• ModA & ModB goes low

• Processor in boot-strap mode

• Flashing enabled

3.3 Controller Schematics (330-400MHz for 8485726Z01, 403-470MHz for 8480450Z03 & 450-527MHz for 8485641Z02)

16.8MHz

RED_LED

TX_AUD_RTN

OFF_BATT_DATA_OUT

RX_AUD_RTN

TX_AUD_SND

FLAT_TX_RTN

MODIN

URX_SND

LEDBL

MECH_SWB+

INT_EXT_Vdd

BATT_CODE

GREEN_LED

4-5

RED_LED

GREEN_LED

SB1
SB2
SB3

EMER

RTA0
RTA1
RTA2
RTA3

MECH_SWB+

VOL
PTT

LVZIF_SEL

SWB+

DACRx

CSX

MODIN

DATA

CLK

LOCK

UNSWB+

DEMOD

RSSI

16.8MHz
5V

Vdda

RESET

BATT_CODE

LI_ION

4V_3.3V

INTERFACE

EXT_MIC

VS_CS

SWB+

Vddd

VS_AUDSEL

FLAT_RX_SND

RX_AUD_RTN

TX_AUD_SND
TX_AUD_RTN

FLAT_TX_RTN

OPT_ENA

RDY

URX_SND

ON

INT_EXT_Vdd

KEYPAD_ROW

KEYPAD_COL

PTT

KEY_INT

VS_INT
RESET
LEDBL

OFF_BATT_DATA_OUT

VS_GAINSEL

MISO
DATA

R_W

LCD_SEL

D0
D1
D2
D3
D4
D5
D6
D7
A0

CLK

VS_RAC

TO/FROM RF

IF_RED_LED_CTRL
IF_GREEN_LED_CTRL
IF_SB1_CTRL
IF_SB2_CTRL
IF_SB3_CTRL
IF_EMER_CTRL
IF_RTA0_CTRL
IF_RTA1_CTRL
IF_RTA2_CTRL
IF_RTA3_CTRL
IF_MECHSWB+_CTRL
IF_VOL_CTRL
IF_PTT_CTRL
IF_LVZIF_SEL_CTRL
IF_SWB+_CTRL
IF_DACRX_CTRL
IF_CSX_CTRL
IF_MODIN_CTRL
IF_DATA_CTRL
IF_CLK_CTRL
IF_LOCK_CTRL
IF_UNSWB+_CTRL
IF_DEMOD_CTRL
IF_RSSI_CTRL
IF_16.8MHz_CTRL

IF_5V_CTRL
IF_Vdda_CTRL

IF_RESET_CTRL
IF_BATT_CODE_CTRL
IF_LI_ION_CTRL
IF_4V_3.3V_CTRL

EXT_MIC
VS_CS
SWB+
Vddd
VS_AUDSEL
FLAT_RX_SND
RX_AUD_RTN
TX_AUD_SND
TX_AUD_RTN
FLAT_TX_RTN
OPT_ENA
RDY
URX_SND

INT_EXT_Vdd
KEYPAD_ROW
KEYPAD_COL
PTT
KEY_INT
VS_INT
RESET
LEDBL
OFF_BATT_DATA_OUT
VS_GAINSEL
MISO
DATA
R_W
LCD_SEL

CLK
VS_RAC

RED_LED
GREEN_LED
SB1
SB2
SB3
EMER
RTA0
RTA1
RTA2
RTA3
MECH_SWB+
VOL
PTT
LVZIF_SEL
SWB+
DACRx
CSX
MODIN
DATA
CLK
LOCK
UNSWB+
DEMOD
RSSI

16.8MHz
5V

Vdda
RESET
BATT_CODE
LI_ION
4V_3.3V

C432

NU

R403

NU

Vdda Vddd

XA18

XA18

D0
D1
D2
D3
D4

MEMORY

D5
D6
D7

FLASH_OE

FLASH_EN

FLASH_EN

FLASH_OE

RAM_CS

R_W

R_W

RAM_CS

Vddd

Vddd

A0
A1
A2
A3
A4
A5
A6
A7
A8

A9
A10
A11
A12
A13
A14
A15
A16
A17

VS_AUDSEL

VS_GAINSEL

LVZIF_SEL

VS_CS

LCD_SEL

4V_3.3V

Vddd

DEMOD

DACRX

UNSWB+

SWB+

RESET

DATA

CLK
CSX

MISO

4V_3.3V
Vddd
DEMOD
DACRX
VS_AUDSEL
VS_GAINSEL

LVZIF_SEL
VS_CS
LCD_SEL

XA18
FLASH_EN

FLASH_OE
RAM_CS
R_W
Vddd

D0
D1
D2
D3
D4
D5
D6
D7

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17

16.8MHz

RED_LED

TX_AUD_RTN

OFF_BATT_DATA_OUT

ASFIC

LSIO

MISO

SQ_DET

EE_CS

EE_CS

MISO

LSIO

SQ_DET

HSIO

HSIO

MICRO_P

TX_AUD_SND

RX_AUD_RTN

FLAT_TX_RTN

CLK

CSX

DATA

CLK

CSX

DATA

PTT

EMER

KEY_INT

MODIN

SYN

SYN

VS_INT

URX_SND

F1200

F1200

BATT_DATA_IN

BATT_DATA_IN

LOCK

LEDBL

INT_MIC

BATT_CODE

GREEN_LED

MECH_SWB+

INT_EXT_Vdd

EXT_MIC

EXT_SPKR_SEL
AUDIO_PA_ENA

FLAT_RX_SND

RESET

SWB+

VOX

CHACT

VOX

SWB+

RESET

CHACT

OPT_SEL1
OPT_SEL2

BOOT_CTRL

OFF_BATT_DATA_OUT

MECH_SWB+

KEYPAD_COL

KEYPAD_ROW

AUDIO

5V

Vdda

UNSWB+

RDY

UNSWB+

SCI_TX
SCI_RX

RSSI
RTA0
RTA1
RTA2
RTA3

SB1
SB2
SB3

LI_ION

OPT_ENA

VOL

VS_RAC

RDY

RTA0
RTA1
RTA2
RTA3
SB1
SB2
SB3
OFF_BATT_DATA_OUT
LI_ION
OPT_ENA
MECH_SWB+
VOL
VS_RAC
KEYPAD_COL
KEYPAD_ROW

SH400

SHIELD

SH401

SHIELD

Vdda

5V

5V

Vdda

SWB+

UNSWB+

AUDIO_PA

OPT_SEL1

OPT_SEL2

SH402

SHIELD

FLAT_RX_SND

EXT_MIC

EXT_MIC

FLAT_RX_SND

AUDIO_PA_ENA

EXT_SPKR_SEL

BOOT_CTRL

RSSI

SCI_RX

SCI_TX

RSSI

AUDIO

INT_MIC

SH403

SHIELD

PTT

KEY_INT

EMER

LOCK

VS_INT

1

MEMORY SHIELD

1

ON/OFF SHIELD

1

MICROPIC SHIELD

1

ASFIC/AUDIO PA SHIELD

Complete Controller Schematic Diagram

4-6

4V_3.3V

URX_SND

RX_AUD_RTN

Vdda

DACRx

VS_GAINSEL

VS_AUDSEL

VOX

FLAT_RX_SND

C407

0.1uF

R425
30K

C479

0.1uF

R445
24K

R449
24K

C430

0.1uF

C415

C414 C451

.01uF

0.1uF

DEMOD

C452

4.7uF

C411

0.1uF

.022uF

TP410

Vdda

1
2
3
4
5
6
7
8

9
10
11
12

R475
0

VDDA
DISC
GNDA
DACU
DACR
DACG
VOX
PLCAP
SQIN
UIO
VDDDAC
AGCCAP

1

EXT_MIC

48

GNDRC

MICEXT

GCB1

GCB2

151413

INT_MIC

C408

100pF

C410

0.1uF

TX_AUD_SND

45

4439464047

TXSND

MICINT

VDDRC

U404
09Z41

SQDET

GCB0

CHACT

1723192418

16

MODIN

AUDIO

FLAT_TX_RTN

414342

MOD

AUDIO

AUXTX

AUXRX

URXOUT

CLK

HSIO

LSIO

CSX

DATA

212022

TP406

INT_EXT_Vdd

C409

0.1uF

LEDBL

37

38

GCB4

GCB5

TXRTN

GCB3

CLK168

VDDD

VDDCP

GNDD

GNDD0

F1200

SYN

VDDSYN

NC

PLCAP2

GNDSYN

LCAP

C420

.01uF

1

36
35
34
33
32
31
30
29
28
27
26
25

SWB+

C401

0.1uF

RESET

MECH_SWB+

C421

0.1uF
R400

47K

R401
0

R407
68K

C416

0.1uF

R405
0

U400
LP2951ACMM-3.3

8

INPUT

7
3

R447

1.5MEG

TX_AUD_RTN
RED_LED

16.8MHz

C422

0.1uF
R413

0

R476

24K

Vdda

C400
.01uF

GND

4

R448
270K

F1200
SYN

OUTPUT

ERRORFEEDBACK
SENSESHUTDOWN

VTAP

10uF

C419

NU

1
5
2
6

R446C480
220K

R402

NU

Vddd

3

1

Q403

C402

0.1uF

2
1

Q400

C403
10uF

CR440

3

2

1

13

R416
39K

3

R406
75K

UNSWB+

BATT_CODE

Vddd

R427

2.7K

CR412

3

Q405

4

2

2

4

1

5

OFF_BATT_DATA_OUT

BATT_DATA_IN

2

Vddd

Controller ASFIC/ON_OFF Schematic Diagram

CHACT

SQ_DET

GREEN_LED

AUDIO_PA_ENA

EXT_SPKR_SEL

LSIO

CSX

HSIO

CLK

DATA

EE_CS

5V

C428

0.1uF

U407

VCC

8

X25320_2.7V

2

SO

VSS

4

4K x 8 BIT
EEPROM

MISO

R429

10K

C427
100pF

6

CLK

1

CS

3

WP

7

HOLD

5

SI

10K

TP401
TEST_POINT

1

R409R457

10K

SCI_RXSCI_TX

TP402
TEST_POINT

1

4-7

F1200Vddd

R418

0

CLK

CSX

EE_CS

OPT_SEL2

XA18

BATT_DATA_IN

LVZIF_SEL

VS_CS

LCD_SEL

RAM_CS

FLASH_EN

A17
A16
A15
A14
A13
A12
A11
A10

5
4
3

CR413

UNSWB+

LI_ION

2

TP405
TEST_POINT

U410

ILC7062CM-33

2

VIN VOUT

VSS

1

R419

510

1

3.3V

3

BOOT_CTRL

C434

0.1uF

DATA

MISO

FLASH_OE

R437

NU

L411

390nH

L410

390nH

979899

100

123

PD5_SS

PD1_TXD

PD4_SCK

PD2_MISO

PD3_MOSI

PF5_ADDR5

PF6_ADDR6

PF7_ADDR7

PD0_RXD

PF3_ADDR3

PF4_ADDR4

PD6_LVIN

6

PG0_XA13

16

PG1_XA14

20

PG2_XA15

19

PG3_XA16

17

PG4_XA17

18

PG5_XA18

5

PG6_AS

47

PH0_PW1

46

PH1_PW2

45

PH2_PW3

44

PH3_PW4

43

PH4_CSIO

42

PH5_CSGP1

41

PH6_CSGP2

38

PH7_CSPROG

30

D0
D1
D2
D3
D4
D5
D6
D7

PC0_DATA0

31

PC1_DATA1

32

PC2_DATA2

33

PC3_DATA3

34

PC4_DATA4

35

PC5_DATA5

36

PC6_DATA6

37

PC7_DATA7

22

A9
A8
A7
A6
A5
A4
A3
A2
A1
A0

LSIO

SQ_DET

CHACT

86

PA7_PA1_OC1

PA4_OC4_OC1

PA5_OC3_OC1

PA6_OC2_OC1

PF2_ADDR2

PFO_ADDR0

PF1_ADDR1

2726252423

29

28

HSIO

SYN

RDY

79808182838485

90

EXTAL

PA0_IC3

PA1_IC2

PA2_IC1

PA3_IC4_OC5_OC1

U409

MC68HC11FL0

PB3_ADDR11

PB4_ADDR12

PB5_ADDR13

PB6_ADDR14

PB7_ADDR15

8

7

11921

15

69

68

VRL

XTAL

PB1_ADDR9

PB2_ADDR10

PBO_ADDR8

10

14

C431

100pF

VRH

PI6

PI7

C449

100pF

939112

92

XFC

VDDSYN

PI3

PI4

PI5

953988

VDD

LVOUT

MODB_VSTBY

PI1

PI2

PI0

55545352515049

56

Vddd Vddd

C453

C423

100pF

100pF

59

89

ECLK

VDDL

AVDD

VDDR

MODA_LIR

PJ0_CSGP3
PJ1_CSGP4

IRQ

XIRQ

RESET

PG7_R_W

PJ2
PJ3
PJ4
PJ5
PJ6
PJ7

PE0_AN0
PE1_AN1
PE2_AN2
PE3_AN3
PE4_AN4
PE5_AN5
PE6_AN6
PE7_AN7

VSSR

VSS

VSSL

871340

70

AVSS

96
48
94

4
58
57

VST

71

CSGP3

72

CSGP4
73
74
75
76
77
78

67
66
65
64
63
62
61
60

R411

10K 100pF

RESET
R_W

RTA0
RTA1
RTA2
RTA3
SB1
SB2
SB3
OFF_BATT_DATA_OUT

VOL
VS_RAC

RSSI
VOX
KEYPAD_COL
KEYPAD_ROW

LOCK
VS_INT
EMER
PTT
OPT_SEL1
OPT_ENA

R426

330K

2

GND

R420

10MEG

C456

KEY_INT

13

FL401

IN

XTAL

OUT

C436
22pF

C437

22pF

R415

91K

1%

LOW BATT

C433
.01uF

R414
180K

1%

TP415
TEST_POINT
1

Mech_SWB+

Vddd

R432

51K

RT400

33.0K

Vddd

R461 R460

Q416
3

R463

300

Q417

1

2

UNSWB+ SWB+

3

C435

0.1uF 4.7K180

CR411

1

2

2

1

R462

10K

51
4

6

3

4

Controller Micro Processor Schematic Diagram

Vddd

R_W

RAM_CS

A10
A11
A12
A13
A14

C425

0.1uF 100pF

10

A0
A1
A2
A3
A4
A5
A6
A7
A8
A9

A0

9

A1

8

A2

7

A3

6

A4

5

A5

4

A6

3

A7

25

A8

24

A9

21

A10

23

A11

2

A12

26

A13

1

A14

20

CS

22

OE

27

WE

28

VDD

RAM

D1
D2
D3
D4
D5
D6
D7
D8

VSS

14

U405
SRM2B256

11
12
13
15
16
17
18
19

C426

D0
D1
D2
D3
D4
D5
D6
D7

R492

0

XA18

R408

NU

FLASH_OE

FLASH_EN

A0
A1
A2
A3
A4
A5
A6
A7
A8

A9
A10
A11
A12
A13
A14
A15
A16
A17

R410
100K

R428

2.2

Vddd

C424
10uF

C429

0.1uF

U406
AT49BV0208

30

EN_CE

32

EN_OE

7

EN_WE

20

A0

19

A1

18

A2

17

A3

16

A4

15

A5

14

A6

13

A7

3

A8

2

A9

31

A10

1

A11

12

A12

4

A13

5

A14

11

A15

10

A16

6

A17

VCC

FLASH ROM

GND

24

NC

21

D0

22

D1

23

D2

25

D3

26

D4

27

D5

28

D6

29

D7

9

D0
D1
D2
D3
D4
D5
D6
D7

XA18

R478

10K

4-8

Controller Memory Schematic Diagram