4-11
4. Troubleshooting
4-1-6. No Sound
Symptom Picture is normal But no Sound-
Major
checkpoints
Check the RF Source
Check the IC6001(SDP84)
This may be happened when LVDS Cable is Connected between Panel and Main Board ,
But Sound cable is disconnected.
-
-
-
Diagnostics
1
2
3
No
Check a connection harness and
headphone jack./Side AV
Check Sound Processor
IC2001
No
Picture is display, no sound.
Check a B12VS, B9V Line.
Change a main PCB ass’y.
No
Does the signal appear at pin
#1 ~#9 , #33~#44 , #61~#64
around IC2001?
Check the DC 12V and 9V
at BD2012 and C2002?
Please, Contact Tech support.
No
Does the signal appear at
Pin6 , Pin9 , Pin10 ,
Pin13 of IC2002?
Replace the speaker ass’y?
Yes
Connect a sound cable.
control a volume.
Yes
1
Yes
3
Yes
2
Caution Make sure to disconnect the power before working on the IP board.
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