LG FLATRON E2040S - TROUBLESHOOTING: DPM ISSUES; DPM TROUBLESHOOTING FLOW; SYNC LINE AND MODULE INTEGRITY

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4. TROUBLE IN DPM
Trouble in DPM
Scaler IC
pin 14 H Sync?
pin 15 V Sync?
Check H/V sync line
Trouble in cable or LCD
module
NO
YES