Question about Mitsubishi WD-57833 57" HDTV

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Mitsubishi wd-65738 flickering

Changed the bulb 3x. dusted off the intake valves in the front of the tv. tried to reset the lamp bulb. still flickering. from my understanding if the ballast board is bad/going bad the tv should either not come on at all or turn off by itself. my tv does neither of these things. after you turn it on, the picture is GREAT and approximately 30-45 minutes later, the color starts to flicker. the picture is great again.....then flickering color and good color...then the color is gone. wth?!?

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The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

Posted on May 25, 2017

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6ya6ya
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Posted on Jan 02, 2017

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doin12volt
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SOURCE: Mitsubishi WS-A65 Sparks coming from the Bulb Ballast

Your crt is leaking coolant onto the board , you need to rebuild whichever crt's are leaking and fix the board!

Posted on Nov 13, 2008

Slinteriors
  • 8617 Answers

SOURCE: New bulb/TV still shuts down

Its far more likely the result of the power pwb capacitors that have failed. As the 34 code will appear if the capacitors fail on the Power PWB. You can get the V26 DLP Power repair kit at the following link.with free instructions
http://servicemanuals.vstore.ca/product_info.php/pName/mitsubishi-v26-dlp-power-pwb-repair-kit/cName/repair-kits

Posted on Apr 30, 2009

  • 3 Answers

SOURCE: Mitsubishi WD-62525 timer light keeps flashing after lamp replace

There is a tiny reset button to the left of the timer light. Press with a pin or something small, wait 60 seconds. Viola!

Posted on May 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

phil_frye
  • 295 Answers

SOURCE: Mitsubishi WD-65733 no picture, electrical buzzes in series

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.
Blessings,
A/V Media Guy

Posted on Nov 20, 2009

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65738 colors flickering after bulb replacement


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1 Answer

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Also, do not rule out the possible dirt issue--these sets intake air from the front and the usual dust at the same time--fans and areas they vent become blocked and set will detect fans run too slow or temperature too high and shut set off.

To begin with in this situation in our shop we roll it outside and with air clean it completely out.

A few things to check and a place to start.

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I have a mitsubishi wd 65738. My picture suddenly went dim. I can still see a picture but the room has to be very dark and its still hard to see. Do I just need to replace a bulb?


Hello
Its bulb has got traoubled or its control circuit has some faut with it. it is not a user serviceable item. Replacing bulb can be done by the user according to the instructions in its user manual. But trouble shooting its control section must be done be any experienced service technician. OK.

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