Motorola GP328 Detailed Service Manual

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Table of Contents
Section 1 Introduction
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 Service Aids
1.0 Recommended Test Tools...................................................................................2-1
Section 3 Power Up Self-Test
1.0 Error Codes .........................................................................................................3-1
Section 4 Controller Information
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
8480450Z03 & 450-527MHz for 8485641Z02)...............................................4-5
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
8480450Z13 & 450-527MHz for 8485641Z06).............................................4-11
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

Motorola GP328 Specifications

General

Channel Capacity	16 channels
Operating Temperature	-30°C to +60°C
Sealing	IP54
Frequency Range	136-174 MHz (VHF), 403-470 MHz (UHF)
Power Output	1-5W (VHF), 1-4W (UHF)
Dimensions	137 x 57.5 x 37.5 mm
Power Supply	7.5V
Battery Life	8 hours (High Power), 11 hours (Low Power) with standard NiMH battery
Weight	420g (with standard battery)