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Standard Repair Process
Error
symptom
No audio
Screen normal
C. Audio error
No audio / Normal video
☞A13
Check Sound menu
Internal TV
→ Internal TV speaker
Speaker
or not
Select Internal TV Speaker
Check Speaker
cable connection
☞A14 & A10/A11
Check
Y
audio B+ voltage(20V)
of Power Board
N
Replace Power Board or repair parts
N
Disconnection
Y
Connect Speaker cable
10
Established
date
Revised date
Y
Normal
voltage
N
Replace Main B/D
End
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10/17
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