LG TH-20LA60PS Service Manual page 16

Chassis : ml-05ma
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No Sound
(ALL MODE)
Check the input source
Pass
Check the input/
output of IC200 of Main B/D
Pass
Ref.6
Check the input/
output of IC600 of Main B/D
Pass
Check the speaker
Pass
Check the speaker wire
Sound input :
Ref.6
IC600(Audio AMP) #3, 5
Change source input
Fail
Re-soldering or Change
IC200
Fail
Re-soldering or Change
IC600
Fail
Check speaker
Fail
- 16 -

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