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No Raster
(OSD Is Not Displayed)
Check CN701
PIN 6 =5V?
YES
Check U701
PIN 2 =3.3V?
YES
Check U703
1.2V?
YES
Check CN701
PIN 6 =5V?
YES
LIPS
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2. NO RASTER (OSD IS NOT DISPLAY)-LIPS
NO
NO
NO
NO
Check power board and find out a
short point as penning each power
line.
1.
Check U701
2.
Check C702,C703,C704
1. Check C703
2. Check C711, C713
3. Trouble in Scaler IC
Check BL ON/OFF pulse as
Contacting scope
- 18 -
LGE Internal Use Only
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