4-11
4. Troubleshooting
4-1-6. No Sound
Symptom Audio is normal but no picture is displayed on the screen.-
Major
checkpoints
Check the RF Source
Check the SEMS01
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
-
-
Diagnostics
No
Check sound cables of each source,
and a connection harness.
No
Picture is display, no sound.
Check IC2002.
Change a main PCB ass’y.
No
Does the signal appear at C2058~65?
Does the signal appear at #3,#13 of
IC2002?
Change a main PCB ass’y.
No
Does the signal appear at
BD2006~9?
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 SMPS/IP.
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