LG Flatron L1900J - 4. TROUBLE IN DPM

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4. TROUBLE IN DPM
TROUBLE IN DPM
NO
NO
TROUBLE IN U101
CHECK PC
PC IS NOT GOING
INTO DPM OFF MODE
CHECK H/V SYNC LINE
CHECK
R307, R308
CHECK
IC101 PIN 32,33
SYNC PULSE ?
3
3
Waveforms
R307 H-Sync
3
R308 V-Sync
YES
YES