LG FLATRON L1732S Service Manual page 20

TROUBLE IN DPM
CHECK
3
R216, R217
R778, R781
U501 PIN 43.44
SYNC PULSE ?
TROUBLE IN U501
Waveforms
3
R216, R778 H-Sync
4. TROUBLE IN DPM
YES
CHECK
YES
3 R217, R781 V-Sync
NO
NO
- 17 -
CHECK PC
PC IS NOT GOING
INTO DPM OFF MODE
CHECK H/V SYNC LINE