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5. Abnormal screen (AV)-Main PCBA
Abnormal screen (AV)
1
Put into AV cable completely?
2
Is Input signal timing
and format in spec?
3
Is waveform at R505
Change IC501
WAVEFORMS
3
R505 (CVBS)
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LG Electronics. Inc. All rights reserved.
Only for training and service purposes
NO
YES
NO
YES
NO
YES
Change Timing to 480I, 576I
Or change format CVBS
Check Line between JK101 and IC501
is open or short, Another is
- 14 -
Insult AV cable tight
change AV cable
LGE Internal Use Only
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