LG FLATRON E2350V - No Raster (OSD Not Displayed) - Main

3. NO RASTER (OSD IS NOT DISPLA
YED) - MAIN
1. CHECK PIN 127,128
SOLDERING CONDITION
2. CHECK X500
3. TROUBLE IN IC500
CHECK IC500
PIN1,20 (3.3V)
PIN23,60(1.2V)
NO
NO
NO
CHECK IC601 PIN1(3.3V),
IC601 PIN3(1.2V)
IC500
PIN 127,128
14.318MHZ?
CHECK CONNECTION LINE
FROM D-SUB TO IC500
TROUBLE IN CABLE
OR LCD MODULE
YES
YES
NO RASTER
(OSD IS NOT DISPLAYED)
CHECK IC500
PIN22(H-SYNC) AND
PIN21(V-SYNC).
IS PULSE APPEARED AT
SIGNAL PINS?
YES
1
Waveforms
4 IC500
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