Vocon Rx Audio Error - Motorola APX 5000 Service Manual
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Also See for APX 5000:
- Service manual (318 pages) ,
- Quick reference card (2 pages) ,
- User manual (45 pages)
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Troubleshooting Charts: VOCON RX Audio Error
5.12 VOCON RX Audio Error – Internal Audio
No audio out of
Main Speaker
Remove Internal Speaker
and measure Audio Signals
at Speaker Connector
Yes
Audio Signal
Present?
No
Measure audio at
GCAI connector
(External Speaker)
No
Audio Signal
Present?
Yes
Measure Audio at
Vocon, Expansion
Board Connector
J4001 Pin 2 and 4
No
Audio Signal
Present?
Yes
Measure SSI Signal
at J4001 Pin 27
Yes
Verify, Inspect U6405
SSI Signal
TLV320AIC33 and
Present?
components around it
No
Replace
Vocon Board
Replace
Internal Speaker
Follow No Audio
External Speaker
Flow Chart
Replace
Expansion Board
Replace U6405 IC or
replace/place
missing/damaged
parts
Yes
U6405 IC
damaged or
missing parts
No
Replace
Vocon Board
5-29
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