LG Flatron L222WS - No Raster Display Troubleshooting (LIPS)

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2. NO RASTER (OSD IS NOT DISPLAY)-LIPS
LIPS
No Raster
(OSD Is Not Displayed)
Check U701
PIN 2 =3.3V?
Check U701
PIN 3 =5V?
Check power board and find out a
short point as penning each power
line
1. Check U701
2. Check C408
Check U702
PIN 2=1.8V?
1. CHECK U702
2. CHECK C402
3. TROUBLE IN SCALER IC
Check CN401
PIN3, 4=5V?
1. Check BL ON/OFF pulse as
contacting scope
NO
NO
NO
NO
YES
YES
YES
YES
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