Motorola PRO Series Service Manual

Professional RadioGP300 SeriesBasic Service Manual68P64115B18CIssue: Nov 2001

1-2 INTRODUCTION2.3 European Radio Support Centre (ERSC)The ERSC Customer Information Desk is available through the following service numbers:Austria:

Warranty and Service Support 1-32.5 Technical SupportMotorola Product Services is available to assist the dealer/distributors in resolving any malfunc

1-4 INTRODUCTION3.0 Radio Model InformationThe model number and serial number are located on a label attached to the back of your radio. You can deter

Chapter 2INTRINSICALLY SAFE RADIO INFORMATION1.0 FMRC Approved EquipmentAnyone intending to use a radio in a location where hazardous concentrations o

2-2 INTRINSICALLY SAFE RADIO INFORMATION2.0 Repair of FMRC Approved ProductsREPAIRS FOR MOTOROLA FMRC APPROVED PRODUCTS ARE THE RESPONSIBILITY OF THE

Repair of FMRC Approved Products 2-32.3 Do Not Substitute Options or AccessoriesThe Motorola communications equipment certified by Factory Mutual is t

2-4 INTRINSICALLY SAFE RADIO INFORMATION

Chapter 3MAINTENANCE1.0 IntroductionThis chapter provides details about the following:❏ Preventive maintenance (inspection and cleaning)❏ Safe handlin

3-2 MAINTENANCECleaning Internal Circuit Boards and ComponentsIsopropyl alcohol (70%) may be applied with a stiff, non-metallic, short-bristled brush

Repair Procedures and Techniques — General 3-34.0 Repair Procedures and Techniques — GeneralParts Replacement and SubstitutionWhen damaged parts are r

iiComputer Software CopyrightsThe Motorola products described in this manual may include copyrighted Motorola computer programs stored in semiconducto

3-4 MAINTENANCEIf a unit requires more complete testing or service than is customarily performed at the basic level, send this unit to a Motorola Auth

Radio Disassembly — Detailed 3-54. Pull the volume and channel selector knobs off of their shafts.5. Separate the chassis from the internal electronic

3-6 MAINTENANCE7. Lift the latches on the main circuit board to release the flexes from their connectors.6.2 Chassis Assembly Disassembly1. Use a TORX

Radio Disassembly — Detailed 3-76.3 Keypad, Display, and Keypad/Option Board Disassembly 1. If the disassembly of the keypad, the keypad printed circu

3-8 MAINTENANCE7. The keypad/option board, and the keypad, can be removed without the use of tools.6.4 Speaker, Microphone, and Universal Connector Fl

Radio Disassembly — Detailed 3-96. After the universal connector tail of the speaker-microphone assembly is removed, the assembly can be completely re

3-10 MAINTENANCE6.6 Controller Board Disassembly (GP344/GP388)1. Use a Philips screwdriver to remove the screw from its position.2. Insert a flat blad

Radio Reassembly — Detailed 3-117.3 PTT Reassembly1. Place the bezel top tab in the top slot inside the front cover PTT opening. Slightly bow the beze

3-12 MAINTENANCE5. Lay the speaker-microphone flex on top of keypad/option board retainer.7.6 Chassis Assembly Reassembly1. Slide on the ground contac

Radio Reassembly — Detailed 3-137.7 Chassis and Front Cover Reassembly1. Align the chassis assembly end-to-end with the front cover assembly.2. Insert

iiiSAFETY INFORMATION Read this information before using your radio.SAFE AND EFFICIENT OPERATION OF MOTOROLA TWO-WAY RADIOSThe information provided i

3-14 MAINTENANCE8.0 Option Board Installation1. With the keypad retainer removed, the keypad backer board can be removed without the use of tools.2. R

Option Board Installation 3-159. Replace the retainer by placing the two top hooks into the slots below the speaker in the front cover; then, pivot th

3-16 MAINTENANCE9.0 Mechanical Views and Parts Lists9.1 GP320/GP340Figure 3-14 Radio Exploded Mechanical View (GP320/GP340)891011121314151618192021222

Mechanical Views and Parts Lists 3-17*It is recommended that if any of these components need replacing, all three new components should be ordered at

3-18 MAINTENANCE9.2 GP360/GP380Figure 3-15 Radio Exploded Mechanical View (GP360/GP380)891011121314151617181920212223242527262829303132333435363739404

Mechanical Views and Parts Lists 3-19ItemMotorolaPartNumberDescription1 See Chapter 6Antenna2 3680529Z01 Knob, Volume3 3680530Z01 Knob, Frequency4 138

3-20 MAINTENANCE9.3 GP344Figure 3-16 Radio Exploded Mechanical View (GP344)6789101112131415161718192021222324252651234##

Mechanical Views and Parts Lists 3-21* Not field serviceableItemMotorolaPartNumberDescription1 See Chapter 6Antenna2 JMLN4638_ Dust Cover3 1385905Z01

3-22 MAINTENANCE9.4 GP388Figure 3-17 Radio Exploded Mechanical View (GP388)12345678910111214151617182019212223242526272829303132333413

Mechanical Views and Parts Lists 3-23ItemMotorolaPartNumberDescription1 See Chapter 6 Antenna2 3680529Z01 Volume Knob 3 3680530Z02 Frequency Knob4 138

iv SAFETY INFORMATIONApproved AccessoriesFor a list of approved Motorola accessories please contact your dealer, or local Motorola representative.ELEC

3-24 MAINTENANCE10.0 Service AidsTable 3-1 lists service aids recommended for working on the GP300 Series Radios. While all of these items are availab

Test Equipment 3-2511.0 Test EquipmentTable 3-2 lists test equipment required to service the GP300 Series Radios and other two-way radios.Table 3-2

3-26 MAINTENANCE12.0 Programming/Test CableFigure 3-18 Programming Test/CableFigure 3-19 Pin Configuration of the Side ConnectorSideConnector1 metreCa

Programming/Test Cable 3-27Figure 3-20 Wiring of the Connectors1234567891011121315141125 Pos Female D Connector25 Pos Male D ConnectorSide Connector15

3-28 MAINTENANCE

Chapter 4PERFORMANCE TESTING1.0 IntroductionThe receiver and transmitter performance tests are contained in Tables 4-1 and 4-2 respectively. Refer to

4-2 PERFORMANCE TESTING3.0 Transmitter Performance TestsThe transmitter performance tests are described in Table 4-2 below.Table 4-2 Transmitter Per

Chapter 5RADIO TUNING AND PROGRAMMING1.0 IntroductionThis chapter provides an overview of the Customer Programming Software (CPS) and tuner program wh

5-2 RADIO TUNING AND PROGRAMMING2.1 Initial Test Equipment SetupThe supply voltage is connected to the radio using a Motorola battery eliminator, P/N

Chapter 6MODEL CHART AND TEST SPECIFICATION1.0 Model Chart (UHF)Professional GP300 Series (UHF)Model DescriptionMDH25RDC9AN0_E GP320 UHF 403-470MHz 4W

SAFETY INFORMATION vOPERATIONAL WARNINGS Vehicles with an air bagPotentially explosive atmospheresBlasting caps and areasOPERATIONAL CAUTIONSDamaged

6-2 MODEL CHART AND TEST SPECIFICATIONXXX XXXNAE6483_ UHF Whip (403-470 MHz) AntennaX PMAE4008_ UHF2 Whip (450-527 MHz) Antenna X X X JMNN4023__ Batte

Model Chart (VHF) 6-32.0 Model Chart (VHF)Professional GP300 Series (VHF)Model DescriptionMDH25KDC9AN0_E GP320 VHF 136-174MHz 5W 1-ChMDH25KDC9AN3_E GP

6-4 MODEL CHART AND TEST SPECIFICATION3.0 Model Chart (LB)Professional GP300 Series (LB)Model DescriptionMDH25BEC9AN3_E GP340 LB1 29.7-42 MHz 6W 16-Ch

Model Chart (300R1) 6-54.0 Model Chart (300R1)Professional GP300 Series (300R1)Model DescriptionMDH25EDC9AN3_E GP340 300R1 300-350 MHz 4WItem Descript

6-6 MODEL CHART AND TEST SPECIFICATION5.0 Specifications - Professional GP300 Series Radios5.1 GP320/340/360/380Data is specified for +25°C unless oth

Specifications - Professional GP300 Series Radios 6-7*Availability subject to the laws and regulations of individual countries.Transmitter UHF/VHF/300

6-8 MODEL CHART AND TEST SPECIFICATION5.2 GP344/388Data is specified for +25°C unless otherwise stated.General SpecificationsChannel CapacityGP344GP38

Specifications - Professional GP300 Series Radios 6-9*Availability subject to the laws and regulations of individual countries.Transmitter VHF UHF1/UH

6-10 MODEL CHART AND TEST SPECIFICATION

Chapter 7POWER UP SELF-TEST1.0 Error CodesTurning on the radio starts a self-test routine that checks the radio functionality. If the checks are succe

vi SAFETY INFORMATION

7-2 POWER UP SELF-TEST

viiTable of ContentsChapter 1 INTRODUCTION1.0 Scope of Manual...

viii7.6 Chassis Assembly Reassembly......3-127.7 Chassis and Front Cover Reassembly ...

Chapter 1INTRODUCTION1.0 Scope of ManualThis manual is intended for use by service technicians familiar with similar types of equipment. It contains s