LG Flatron L1722P - Troubleshooting Guide; Trouble in DPM

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4. TROUBLE IN DPM
TROUBLE IN DPM
NO
NO
TROUBLE IN PC
CHECK PC
PC IS NOT GOING
INTO DPM OFF MODE
TROUBLE IN SIGNAL
CABLE
YES
YES
CHECK
R629, R630 (SYNC) ?
CHECK
U201 PIN 81
(0V) ?
7
7
Waveforms
R629 H-SYNC
7
R630 V-SYNC
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