Read LG 22LS2100 (CHASSIS:LD93Q / LP93Q) Service Manual online
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5. Abnormal screen (AV)-Main PCBA
Put into AV cable completely?
Abnormal screen (AV)
YES
NO
NO
Insult AV cable tight
1
Change IC600
WAVEFORMS
Is Input signal timing
and format in spec?
Change Timing to 480I, 576I
Or change format CVBS
2
Is waveform at R651
3
Check Line between JK101 and IC600
is open or short, Another is
change AV cable
NO
YES
YES
R651 (CVBS)
3
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