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LG L1752TX Service Manual page 19

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TROUBLE IN DPM
CHECK
3
R442, R443
CHECK
U201 PIN 27,28
SYNC PULSE ?
TROUBLE IN U201
Waveforms
3
R442 H-Sync
4. TROUBLE IN DPM
YES
YES
3 R443 V-Sync
NO
NO
- 19 -
CHECK PC
PC IS NOT GOING
INTO DPM OFF MODE
CHECK H/V SYNC LINE
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