Motorola GP2000

Section 7 -28 Troubleshooting charts
Start
No
Power
Is
+5vTX and TXB+
OK?
Is
current
OK?
Is
TP308
High or Low?
Check Pin3
to Q419
Is
Pin
OK?
Check
Q201, Q202
&
U151
Check
Voltages in
Power Control
Circuit
Check
Voltages in
PA Line-up
Troubleshoot
VCO
Done
Is
Power
OK?
1. Check Pin Diodes
2. Check Harmonic Filter
Inspect/Repair
TX Output
Network
NO
NO
LOW
HIGH
YESNO
NO
YES
YES
YES
Troubleshooting Flow
Chart for Transmitter