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LG Flatron L1930SQ Service Manual page 21

Color monitor
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TROUBLE IN DPM
6
R773, R775(SYNC) ?
U501 PIN 43.44
SYNC PULSE ?
TROUBLE IN U501
Waveforms
6
R773 H-Sync
4. TROUBLE IN DPM
CHECK
YES
CHECK
YES
6
R775 V_Sync
NO
NO
- 19 -
CHECK PC
PC IS NOT GOING
INTO DPM OFF MODE
CHECK H/V SYNC LINE
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