LG 28MT45M - TROUBLESHOOTING: ABNORMAL SOUND (AV); Abnormal Sound (AV Input)

- 19 -
LGE Internal Use Only
Copyright © LG Electronics. Inc. All right reserved.
Only for training and service purposes
8. 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