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4-1-6. No Sound
Symptom
Audio is normal but no picture is displayed on the screen.
-
Check the RF Source
-
Major
Check the SDP83(CHELSEA)
-
checkpoints
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
Diagnostics
1
1
3
Caution
Make sure to disconnect the power before working on the IP board.
1
Picture is display, no sound.
Yes
Does the signal appear at pin
#27, #28, #29, #30(MCLK, BCLK,
LRCLK, DATA) of IC2002?
Yes
Check the DC 12V
BD2005 of IC2002?
Yes
Does the signal appear at
Pin #13 ,#10 (CH1_L,R Sound) And
Pin #9, #6 (CH2_L,R) of IC2002?
Yes
Replace the speaker ass'y?
Connect a sound cable.
No
control a volume.
Check a connection harness and
No
headphone jack./Side AV
Check Sound Processor
IC2002 (STA339BWS)
Check a B12V Line.
No
Change a main PCB ass'y.
No
Please, Contact Tech support.
4. Troubleshooting
4-11
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