Motorola ASTRO Digital Spectra Plus Detailed Service Manual page 238

5-20
Check for 1.8V at R419
Make sure the following
components are placed
No
and soldered correctly:
Present?
U410, C430 R431, R451, R452,
C433, C415, R419
Yes
Check for 3.0 V at R420
Make sure the following
No components are placed
Present?
and soldered correctly:
U411, C434, C435, C436, C437,
R420
Yes
Check for 13.8 V at J501-35
No
Inspect placement and
Present?
soldering of J501
Yes
No trouble found
Chart C.26 ASTRO Spectra Plus VOCON DC Supply Failure
September 5, 2008
Yes
OK?
Replace U410
No
Repair proper
components
Yes
OK?
Replace U411
No
Repair proper
components
Yes
Recycle radio
OK?
power
No
Repair connector
No
Refer board to
Fixed?
Service Depot
Yes
END
No
Refer board to
Fixed?
Service Depot
Yes
END
No
Refer board to
Fixed?
Service Depot
Yes
END
Troubleshooting Charts
6881076C25-E