8.2V at R0015?
Yes
No
9.3 V at R0014?
No
Radio did not boot up properly or
check 9V3 regulator
Yes
Replace or resolder parts Q0000,
R0015,C0065,C0071,C0072
Components Q0000
R0015,C0065,C0071 and
C0072 are okay?
Check for any short or open under
SH0000 and SH0001 and Replace
U0000 if needed
No
Yes
DC voltage at R0000
between 1.5-10.5V
Yes
Yes
No
Check VCO troubleshooting chart
Receive VCO1 or Receive VCO2?
No
1.8V at TP0200?1.8V at TP0201?
VCO1 VCO2
Is there activity on R1039?
No
Check Controller troubleshooting
document
No
Check for any short or open under
SH0000 and SH0001 and Replace U0000
if needed
Yes
Yes Yes
B
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