Motorola HT1250-LS+ - Editing Radio Call Lists and Tagging

Maintenance 4-17
START
No Power
Is There B+
Bias for Ant
switch
Check U102 Pin
32 voltage, R101,
R102, etc.
Is TX
Current
normal?
Is Control Volt-
age High or Low
Check PCIC
1. Check Pin Diodes
2. Check Harmonic Filter
Inspect/Repair Tx.
Output Network
Is Power
OK?
Done
Check Drive to
Module
Is Drive
OK?
Troubleshoot
VCO
Inspect PA Network/
Check Power Out of
U101 at Cap C131
Is Power
OK?
Replace U101
Is Power
OK?
Replace Q101
Done
Done
No
Ye s
Ye s
No
No
Ye s
Low
High
No
Ye s
Ye s
No
Ye s
No
Troubleshooting Flow Chart for Transmitter