Question about Mitsubishi WD-65733 65" HDTV

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Mitsubishi wd-65734 lamp ballast replacement

The lamp indicator light is on on my mitsubishi wd-65734 and there is no picture. It makes a ticking sound when i turn it on and upon researching it may be the lamp ballast and not the lamp itself. Is it difficult to replace the ballast? Is there a video of the repair and do you think I should go with the ballast replacement first since it seems more likely the cause of the problem?

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6 Suggested Answers

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Posted on Jan 02, 2017

Slinteriors
  • 8617 Answers

SOURCE: red lamp light with newbulb, won't come on error code 34

There are two 1000uf 16V capacitors on the PWB that cause that problem code 34 lamp abnormality. If you need more info let me know.

Posted on May 04, 2008

  • 98 Answers

SOURCE: Mitsubishi WD-52525 Lamp ballast

Contact Mitsubishi Parts themselves, 18005537278. They are very friendly.

Posted on May 15, 2008

  • 1 Answer

SOURCE: Need to replace ballast on mitsubishi wd-62526

I replaced my own the part cost $109,it was somewhat time consuming since taking the back panel off was a learn as I went.However I still didn't get the red LED to go off.....TV still would not power up in it's normal fashion.Previously I had 2 lamps burn out,and you definetly could tell they burned out.Since then I have changed the power supply feeding($130) the ballast circuit and I still haven't got the TV to come on without defaulting to the red LED,and taking the chasis apart to do this was a real pain.I have posted a question about my problem recently.Still waiting for a solution.Mitsubishi won't sell a customer any parts........they want you to go to atechnician that works on their product.GOOD LUCK!

Posted on Jan 07, 2009

  • 52 Answers

SOURCE: Mitubishi WD 62725 - Ballast Problem??

Could be the FMT pcb or the Dm pcb board you should check the caps on them and replace any faulty ones.

Posted on Nov 14, 2009

  • 52 Answers

SOURCE: How to reset lamp timer on mitsubishi wd-65734

This model there is no reset for lamp timer.

Posted on Nov 14, 2009

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1 Answer

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Never heard of a color wheel needing to be replaced. Both cooling fans need to be clean and turn easily. Color wheel fan needs to turn easily. If any one of these motors does not turn, the controller will cause a shut-down. The Xenon lamp uses high voltage to operate. If the power supply was damaged, the lamp won't light. The sparking on the ballast board indicates that dirt or dust may be causing the problem. Also, the clamping diodes and regulator may be defective. If possible, try replacing the lamp power board. Regards.

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What it sound's like is that the lamp ballast is the problem. Buzzing sounds like when the power is first brought to the ballast it has to ramp up the voltage to get the lamp to light, then the voltage drops back down when the lamp is lit. Sounds like the lamp ballast isn't ramping up the voltage the way it should. May have to replace it. A good service shop would be able to do this for you.
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