LG Flatron W2284F Service Manual page 17

NO RASTER
(OSD IS NOT DISPLAYED)
CHECK IC200
PIN114(3.3V)
PIN21(1.8V)
1
PIN 127,128
14.3MHZ?
CHECK IC200
PIN32(H-SYNC) AND
PIN33(V-SYNC).
IS PULSE APPEARED AT
SIGNAL PINS?
TROUBLE IN CABLE
OR LCD MODULE
Waveforms
IC200-#127
1
Copyright 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. NO RASTER (OSD IS NOT DISPLAYED) - MAIN
YES
IC200
YES
YES
NO
NO
NO
- 17 -
CHECK IC501(3.3V),
IC502(1.8V)
1. CHECK PIN 127,128
SOLDERING CONDITION
2. CHECK X200
3. TROUBLE IN IC200
CHECK CONNECTION LINE
FROM D-SUB TO IC200
LGE Internal Use Only