Motorola GP series Detailed Service Manual

iv
Chapter 2 TROUBLESHOOTING CHARTS
1.0 Troubleshooting Flow Chart for Controller...........................................................2-1
2.0 Troubleshooting Flow Chart for Receiver (All models except those with PCB
8486458Z03) (Sheet 1 of 2).................................................................................2-2
3.0 Troubleshooting Flow Chart for Receiver (All models except those with PCB
8486458Z03)(Sheet 2 of 2)..................................................................................2-3
4.0 Troubleshooting Flow Chart for Receiver (Models with PCB 8486458Z03)
(Sheet 1 of 2).......................................................................................................2-4
5.0 Troubleshooting Flow Chart for Receiver (Models with PCB 8486458Z03)
(Sheet 2 of 2).......................................................................................................2-5
6.0 Troubleshooting Flow Chart for Transmitter ........................................................2-6
7.0 Troubleshooting Flow Chart for Synthesizer........................................................2-7
8.0 Troubleshooting Flow Chart for VCO...................................................................2-8
9.0 Troubleshooting Flow Chart for Receive Message/Personal Memo Recording ..2-9
10.0 Troubleshooting Flow Chart for Message Playback ..........................................2-10
Chapter 3 UHF PCB/SCHEMATICS/PARTS LISTS
1.0 Allocation of Schematics and Circuit Boards.......................................................3-1
1.1 Controller Circuits...........................................................................................3-1
1.2 Voice Storage Facility.....................................................................................3-1
2.0 UHF PCB 8480450Z03 Schematics ....................................................................3-7
3.0 UHF PCB 8480450Z03/8480587Z01 Parts List.................................................3-17
4.0 UHF PCB 8480587Z01 (GP1280) Schematics..................................................3-21
5.0 UHF PCB 8480587Z01 (GP1280) Voice Storage Parts List .............................3-24
6.0 UHF PCB 8480587Z03 (GP1280) Schematics..................................................3-25
7.0 UHF PCB 8480587Z03 (GP1280) Parts List ....................................................3-35
8.0 UHF PCB 8480587Z05 (GP1280) Schematics..................................................3-39
9.0 UHF PCB 8480587Z05 (GP1280) Parts List ....................................................3-41
10.0 UHF PCB 8480450Z13/14 Schematics .............................................................3-47
11.0 UHF PCB 8480450Z13/14 Parts List ................................................................3-57
12.0 UHF PCB 8486458Z03 Schematics ..................................................................3-61
13.0 UHF PCB 8486458Z03 Parts List .....................................................................3-71
14.0 UHF PCB 8415234H01 Schematics..................................................................3-75
15.0 UHF PCB 8415234H01 EPP Part List...............................................................3-85
16.0 UHF PCB 8415234H02 Schematics..................................................................3-91
17.0 UHF PCB 8415234H02 Parts List ...................................................................3-101
18.0 UHF PCB 8415234H05 Schematics................................................................3-107
19.0 UHF PCB 8415234H05 EPP Parts List ...........................................................3-117
20.0 UHF PCB 8415234H08 Schematics................................................................3-127
21.0 UHF PCB 8415234H08 Parts List ...................................................................3-137
22.0 UHF PCB 8486743Z02 Schematics ................................................................3-147
23.0 UHF PCB 8486743Z02 Parts List....................................................................3-155
24.0 UHF PCB 84125234H05 Narrow Band Schematics........................................3-163
25.0 UHF PCB 84125234H05 Narrow Band Parts List ...........................................3-173

Motorola GP series Specifications

General

Operating Temperature	-30°C to +60°C
Frequency Range	136-174 MHz
Number of Channels	16
Channel Spacing	12.5 kHz / 25 kHz
Battery Life	8 hours (with standard battery)
Operating Voltage	7.5V DC
Ingress Protection	IP54
MIL-STD	810 C, D, E, F