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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 f ormat CVBS
Check Line between JK101 and IC501
is open or short, Another is
- 17 -
Insult AV cable tight
change AV cable
LGE Internal Use Only
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