LG RM-26LZ50 Service Manual page 20

No Sound
Check the
input source
Pass
Check the input/output
of IC1
Pass
Check the input/output
of IC100,IC101
Pass
Check the speaker
Pass
Check the speaker wire
Fail
Fail
Fail
Fail
- 20 -
Change source input
Re-soldering or
Change the defect part
Re-soldering or
Change the defect part
Change speaker