3. NO RASTER (OSD IS NOT DISPLAYED) � MSTAR
NO RASTER
(OSD IS NOT DISPLAYED)
NOCHECK U801 (17", 19")U201
PIN 18, 90
CHECK U803 (15")3.3V?
YES
U201 1. CHECK PIN122, 123
PIN96, 97NOSOLDERING CONDITION1
OSCILLATE AS2. CHECK X501
12MHZ?3. TROUBLE IN U201
YES
U501
PIN43 IS 48KHz H-SYNC?
NOCHECK CONNECTION LINE
FROM D-SUB TO U501 2PIN44 IS 60Hz V-SYNC?
IS PULSE APPEARED
AT SIGNAL PINS?
AT MODE 12?
YES
TROUBLE IN CABLE
OR LCD MODULE
Waveforms
1 U201-#96, 972U501-#43 H-SYNC2 U501-#44 V-SYNC
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