Question about Sharp XR-10S DLP Projector

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Projector turns on but does not illuminate bulb is good

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  • fakhruddin jawadwala May 11, 2010

    WHEN POWERED LAMP DOES NOT ON COLOR WHEEL SPIN SOUND AUDIBLE BULB DOES NOT SEEM WORNOFF USED FOR 400HRS HOW CAN I NOW WETHER BALLAST OR BULB IS DEFECTIVE ALL VOLTAGES SEEMS OK I DONT HAVE SERVICE MANUAL IF I REPLACE BULB & SAME PROB PERSIST THEN? PLS HELP

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WHEN POWERED LAMP DOES NOT ON COLOR WHEEL SPIN SOUND AUDIBLE BULB DOES NOT SEEM WORNOFF USED FOR 400HRS HOW CAN I NOW WETHER BALLAST OR BULB IS DEFECTIVE ALL VOLTAGES SEEMS OK I DONT HAVE SERVICE MANUAL IF I REPLACE BULB & SAME PROB PERSIST THEN? PLS HELP E MAIL AT fakhruddinjawadwala@yahoo.com thanks

Posted on Feb 26, 2010

  • fakhruddin jawadwala Feb 28, 2010

    solve the above problem by replacing the bulb
    one can know whether ballast card is OK or not by following procedure
    1) select 1000v ac on good digital multimeter
    2) gnd black prode of multimeter to the chasis of projector
    3) place the red prode to pink wire of bulb
    4)switch on projector to green
    5) if meter show 200v reading then the ballast is OK bulb is defective this reading will be visible only for 3-4 sec then it will come to 0
    6) if there is no reading ballast is defective check fusible register and fet transitor


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May be either the colorwheel or the ballast. if you hear the colorwheel spin up (high-pitched whir), replace the ballast. if you don't hear it, replace the colorwheel.

Posted on Dec 31, 2009

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