LG Flatron W2600H - DPM Mode Issues

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Only for training and service purposes
LGE Internal Use Only
4. TROUBLE IN DPM
TROUBLE IN DPM
NO
NO
NO
TROUBLE IN IC202
CHECK PC.
PC IS GOING TO THE
DPM MODE.
CHECK PC.
PC IS GOING TO THE
DPM MODE.
CHECK H/V SYNC LINE
YES
If DSUB
CHECK R185
AND R187 SYNC
APPEARED?
Is R183 Level
is LOW?
If DVI
CHECK R133.
CHECK IC202
PIN172,173
SYNC PULSE
YES
YES
1
2
Waveforms
1
H-SYNC
2
V-SYNC