Read LG 15LS1RA (CHASSIS:LN71A) Service Manual online
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No Sound
Check the speaker wire
Change source input.
Check the
input source.
Fail
Pass
Re-solder or Change the defect part.
Check X100.
Check X100.
Check the input/output
of IC100
Fail
Pass
Re-solder or change the defect part.
Check the input/output
of IC400
Fail
Pass
Change the speaker
Check the speaker
Fail
Pass
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