LG FLATRON E2350V - DPM Troubleshooting

4. TROUBLE IN DPM
TROUBLE IN DPM
TROUBLE IN IC500
CHECK PC
PC IS GOING
INTO DPM MODE
NO
CHECK H/V SYNC LINE
NO
YES
CHECK R620 AND
R621, SYNC
APPEARED?
CHECK
IC500 PIN21,22
SYNC PULSE
YES
1
H-SYNC
2
V-SYNC
Waveforms
1
2
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