Read LG 19LG30 / 19LG31 (CHASSIS:LA85C) Service Manual online
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4. No sound
Check the input
Source.
Fail
Pass
Change source input.
Check input/Output
of IC100.
Fail
Pass
Re-soldering or change the defect part.
Check the X100.
Check the X100.
Check the input/
output of IC500.
Fail
Re-soldering or change
the defect part.
the defect part.
Pass
Check the Speaker.
Pass
Check the Speaker wire.
Start Check
Fail
Change the speaker.
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