LG 22LS2100 - Abnormal Screen (HDMI) - Main PCBA

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7. Abnormal screen (HDMI)-Main PCBA
Put into RGB
cable completely?
Abnormal screen (RGB PC)
YES
NO
NO
insult RGB cable tight
1
Change IC600
WAVEFORMS
Is Input signal timing
and f ormat in spec?
Change Timing according to
product spec, Or change format to RGB
2
Is waveform at R628,
R630, R634
3
Check Line between P302 and IC600
is open or short, Another is
Change RGB cable
NO
YES
YES
3
R630(G)
R634(R)
R628(B)