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2. NO RASTER (OSD IS NOT DISPLAY)-LIPS
No Raster
(OSD Is Not Displayed)
Check U404
PIN 3 =5V?
YES
Check U404
PIN 2 =3.3V?
YES
CheckC423 (+)
1.8V?
YES
Check CN701
PIN1 =5V?
YES
LIPS
NO
Check power board and find out a
short point as penning each power
line
NO
1.
Check U404
2.
Check C426,C427
1. Check Q409,Q410
NO
2. Check C432,C423
3.
TROUBLE IN SCALER IC
NO
Check BL ON/OFF pulse as
contacting scope
18
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