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3. NO RASTER (OSD IS NOT DISPLAYED) – MST9131BNO RASTER(OSD IS NOT DISPLAYED)U201POWER PIN 72,82, 94(3.3V)PIN 64, 85 (2.5V)?YESNOCHECK U803(2.5V REGULATOR),CHECK U804(3.3V REGULATOR)U501PIN11, 12OSCILLATE AS12MHZ?NO1. CHECK PIN11, 12SOLDERING CONDITION2. CHECK X5013. TROUBLE IN U501YESU501PIN41 IS 48KHz H-SYNC?PIN42 IS 60Hz V-SYNC?IS PULSE APPEAREDAT SIGNAL PINS?AT MODE 12?NOCHECK CONNECTION LINEFROM D-SUB TO U501YESTROUBLE IN CABLEOR LCD MODULE- 15 -
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