Question about Mitsubishi WT-46805 46" Rear Projection Television

1 Answer

Tv wont power up

Mitsubishi big screen you turn on and the power light comes on and then goes off,so it wont power up

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  • toseize Feb 05, 2008

    Same thing here. Worked fine yesterday, with just image convergence issues. Now, you turn on the power (either at the unit or from the remote), and the power light blinks on and off, with 3 or 4 audible clicks inside the TV.

  • pcboards Nov 24, 2008

    Same issue but with model vs60803. My DEFL-MINI Board (#935D400002) does not have same components listed in fix provided for WT46805 model, listed fix as: "CHECK C5A09 AND C5A50 BOTH 33 UFD 50 V OFF OF IC5A01 ON PCB-DEFL MINI." Could some please provide the same relative solution but for vs60803. Thanks!

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  • Master
  • 927 Answers

Good Day, y'all;

Try these:

CHECK CONNECTOR "DR" FOR PROPER CONNECTION, BETWEEN THE DEFL MINI PCB AND THE MAIN PCB. 2. CHECK C5A09 AND C5A50 BOTH 33 UFD 50 V OFF OF IC5A01 ON PCB-DEFL MINI. 3. CHECK FOR LEAKY IC5A03 PART # 270P704010 ON PCB-DEFL MINI 4. SUSPECT THE HIGH VOLTAGE BLOCK PART # 920P016010.
NO POWER. RELAY CLICKS 1. CHECK Q501 (261P071010), Q502 (260P561020) AND Q503 (260P788010). IF ANY OF THESE TRANSISTORS ARE SHORTED OR LEAKY REPLACE IT INSURE THE FOLLOWING CIRCUIT CHANGE HAS BEEN DONE. REMOVE J58 FROM THE PCB-MAIN. USING AN INSULATED JUMPER WIRE, SOLDER A 22 OHM 1/4W RESISTOR BETWEEN PIN 4 OF THE RELAY K9A30 AND THE J58 HOLE NEXT TO PIN 1 OF CONNECTOR DQ. DRESS AND INSULATE THE JUMPER AND RESISTOR TO PROTECT AGAINST SHORT CIRCUITS. INSTALL A .01 UF 50V CERAMIC CAPACITOR BETWEEN THE COLLECTOR OF Q510 AND THE GROUND LEAD OF R502. NO POWER. NO RELAY CLICK 1. CHECK FOR 5 VDC AT PIN 9 OF IC700 (AC-OFF) IF MISSING CHECK PC901 PART # 268P058020, ON THE POWER PCB. Good Luck, big IRISH. tv wont power up - back.gif back.gif

Posted on Jul 25, 2008

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