Motorola Mototrbo - Page 281

Troubleshooting Flow Chart for RFIC 1-9
3.4 Troubleshooting Flow Chart for RFIC (Sheet 5 of 5)
9.3V at R0002?
Yes
9.1V at E0003
Radio did not boot up properly or
check 9V3 regulator
No
Check components R0002,C0015 &
Q0006 for open and shorts & replace
Q0006.
No
Yes
Vbe ~ 0.8VDC for Q0003?
Check components
R0060,R0061,R0062,R0063 and
Q0003 for open and shorts and &
replace Q0003.
No
Yes
Are components between R0058
and C0119 okay?
Replace or resolder components if
needed
No
Yes
Is Frequency at TP0010 146.7MHz &
prescaler level between 100-250mv
No
END
Yes
Check for any short or open under
SH0000 and SH0001 and replace
U0000 if needed
Yes
DC voltage at TP0009 between 0.5-2.5V?
No
Yes
Components from R0000
to R0012 okay?
Yes
Check for any short or open and
replace parts if needed
No
~11-12.5 at R0030?
Check for any short or open under
SH0000 and SH0001 and replace
U0000 if needed
Yes
Check components between R0031
and L0000 for short and open
No
Is there activity on R1039?
NoYes
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