LG Flatron W1943TB - Page 20

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3. NO RASTER (OSD IS NOT DISPLAY)-MSTAR
1. Check C420 C421
2. Check X401
3. TROUBLE IN SCALER IC
SCALER PIN 127,
128 OSCILLATES
AS 12MHZ?
No Raster
(OSD Is Not Displayed)
CHECK CONNECTION
LINE FROM D-SUB TO
SCALER
TROUBLE IN CABLE OR
LCD MODULE
NO
YES
YES
NO
SCALER IC
PIN 41 H SYNC ?
PIN 42 V SYNC?
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