LG Flatron W2442PA - TROUBLESHOOTING: NO RASTER (MAIN); Main Board Related No Raster

3. NO RASTER (OSD IS NOT DISPLAYED) - MAIN
1. CHECK PIN 25,26
SOLDERING CONDITION
2. CHECK X101
3. TROUBLE IN IC101
CHECK U501
PIN7(3.3V)
PIN5(1.8V)
NO
NO
NO
CHECK IC402(1.8V),
IC401(3.3V)
IC101
PIN 25,26
14.3MHZ?
CHECK CONNECTION LINE
FROM D-SUB TO IC101
TROUBLE IN CABLE
OR LCD MODULE
YES
YES
NO RASTER
(OSD IS NOT DISPLAYED)
CHECK U501
PIN65(H-SYNC) AND
PIN66(V-SYNC).
IS PULSE APPEARED AT
SIGNAL PINS?
YES
1
Waveforms
4 IC101
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