LG 22MT45A - Page 16

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LGE Internal Use Only
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Only for training and service purposes
5. Abnormal screen (AV)-Main PCBA
Put into AV cable completely?
Abnormal screen (AV)
YES
NO
NO
Insult AV cable tight
1
Change IC501
WAVEFORMS
Is Input signal timing
and format in spec?
Change Timing to 480I, 576I
Or change format CVBS
2
Is waveform at R505
3
Check Line between JK101 and IC501
is open or short, Another is
change AV cable
NO
YES
YES
R505 (CVBS)
3