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6. Abnormal screen (RGB PC)-Main PCBA
Abnormal screen (RGB PC)
1
Put into RGB
cable completely?
2
Is Input signal timing
and format in spec?
3
Is waveform at R501
R502, R504
Change IC501
WAVEFORMS
3
R502(G)
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Only for training and service purposes
NO
YES
NO
YES
NO
YES
R604(R)
insult RGB cable tight
Change Timing according to
product spec, Or change format to RGB
Check Line between JK201 and IC501
is open or short, Another is
Change RGB cable
R601(B)
- 17 -
LGE Internal Use Only
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