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Motorola Manuals
Two-Way Radio
GP328 Plus
Service manual
Troubleshooting Flow Chart For Transmitter - Motorola GP328 Plus Service Manual
Portable radios
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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5D-34
Yes
1. Check Pin Diodes
2. Check Harmonic Filter
Inspect/Repair Tx. Out-
put Network
Is Power
OK?
Yes
Done
Troubleshooting Flow Chart for Transmitter
Yes
No
Is Current
OK?
No
Done
Done
START
No Power
No
Is There B+
Bias for Ant
switch
Is Control Voltage
High or Low
High
Check Drive to
Module
Is Drive
OK?
Yes
Inspect PA Network/Check
Power Out of U101 at Cap
C160
Is Power
Yes
OK?
No
Replace U101
Is Power
Yes
OK?
No
Replace Q101
Troubleshooting charts
Check Q111
Low
Check PCIC
No
Troubleshoot
VCO
Table of
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Table of Contents
Troubleshooting
Troubleshooting Chart
30
Troubleshooting Charts
87
Troubleshooting Flow Chart for Receiver (Sheet 1
88
Troubleshooting Flow Chart for Receiver (Sheet 2
89
Troubleshooting Flow Chart for Transmitter
90
Troubleshooting Flow Chart for Synthesizer
91
Troubleshooting Flow Chart for VCO
92
Troubleshooting charts
121
Troubleshooting Flow Chart for Receiver (Sheet 1
122
Troubleshooting Flow Chart for Receiver (Sheet 2
123
Troubleshooting Flow Chart for Transmitter
124
Troubleshooting Flow Chart for Synthesizer
125
Troubleshooting Flow Chart for VCO
126
Troubleshooting charts
157
Troubleshooting Flow Chart for Receiver (Sheet 1
158
Troubleshooting Flow Chart for Transmitter
160
Troubleshooting Flow Chart for Synthesizer
161
Troubleshooting Flow Chart for VCO
162
Troubleshooting charts
193
Troubleshooting Flow Chart for Receiver (Sheet 1
194
Troubleshooting Flow Chart for Transmitter
196
Troubleshooting Flow Chart for Synthesizer
197
Troubleshooting Flow Chart for VCO
198
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Gp338 plus
Gp338 xls
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