LG 22MT45A - Page 21

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10. Abnormal sound (AV)-Main PCBA
Put into AV cable completely?
Abnormal sound (AV)
YES
NO
Insult AV cable tight
1
Change IC501
WAVEFORMS
Is waveform at C520,C521
2
Check Line between JK101 and IC501
is open or short, Another is
change AV cable
NO
YES
C520,C521(audio in)
2