Acer AC511 SERIES Service Manual
Also see for AC511 SERIES: Service guideReference manual
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Contents
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196-10 POWER SUPPLY TROUBLE SHOOTING CHARTBEFORE CHECK SW.REG. PLEASE REFER TO THE POWER SUPPLY BLOCK DIAGRAMPOWER SUPPLY OUTPUT: (A) VARIABLE OUTPUT : 60.5V - 145V(DEPENDING EPENDING UPON H.SYNC FREQUENCY)(B) CONSTANT OUTPUT : 6.3V, 14.5V, -12V, 80VBEAD SET ABNORMAL VARIABLE OUTPUTNGOKNGOKOKNG NGNGOKOKOKNGOKNGYESNOCHECK BRIDGERECTIFIED CIRCUITCHECK START C.K.TCHECK IC401CHECK D919CHECK Q911Q911 FAILURECHECK Q901CHECK IC901CHECK AC LINEVOLT 120V OR 220VCHECK F901, SW901CHECK LINE RECTIFIED& SMOOTHED VOLTCHECK Q901IC901 FAILURECHECK T901 O/PMAKE SURE THATTHE VARIABLEOKOUTPUT IS NOT SHORTEDR928, R932, D911, D917CHECK THE 60VPIN 14, 15, 16, 28, B+DRIVER6.3V, -12V CIRCUIT OUTPUTIC401 29(ABOUT 11.5V)CHECK 80V, 60V, 15V |
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