LG E2042T-BN - Manual (Page 14)

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2. NO RASTER (OSD IS NOT DISPLAYED) - MAIN
NO
NO CHECK CONNECTION LINE
FROM D-SUB TO IC103
TROUBLE IN CABLE
OR LCD MODULE
YES
NO RASTER
(OSD IS NOT DISPLAYED)
YES
1
Copyright
Only for training and service purposes
LGE Internal Use Only
2010 LG Electronics. Inc. All right reserved.
CHECK
IC103 PIN25(3.3V)
PIN27(1.2V)
NO
YES
IC103 PIN42,43
CHECK
IC103 PIN36(V-SYNC)
And PIN35(H-SYNC)
1. CHECK PIN 42,43
SOLDERING CONDITION
2. CHECK X100
3. TROUBLE IN IC103
CHECK IC102 PIN3(5V)
IC504(1.2V)