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LG 24MN42A-PT - Abnormal Sound (AV Input) Troubleshooting

LG 24MN42A-PT
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LGE Internal Use OnlyCopyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
10. Abnormal sound (AV)-Main PCBA
Put into AV cable completely?
Abnormal sound (AV)
YES
NO
Insult AV cable tight
1
Change IC600
WAVEFORMS
Is waveform at C688,C689
2
Check Line between JK101 and IC600
is open or short, Another is
change AV cable
NO
YES
C688,C689 (audio in)
2

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