Question about Mitsubishi WS-65909 65" Rear Projection Television

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Mitsubishi WT-A42 projection 42" HD1080 series

My tv is 5 yrs old and lately the picture zooms in and out and then the tv shuts itself off. I purchased it at Best Buy and the warranty expired on 12/31/07...could this be an expensive fix? Thanks for your assistance. Roma

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It sounds like your regulator circuit is defective. Not an expensive repair, maybe $200.or a little more.

Posted on Apr 08, 2008


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My mitsubishi 42' hd 1080 tv turns off immediately after i turn it on.The set is about 7 years old.HELP!!!!!! niteowl42

Have you acessed the power indicator error code by pressing in the menu and input buttons on the front of the set both in together and hold in for 5 seconds? The led will blink a series of blinks to indicate a 2 digit code which will repeat several times. Let me know what the blink seqience is.

May 31, 2011 | Mitsubishi WT-42311 42" Rear Projection...

2 Answers


have you tried using your remote control?

does it shuts off?

its something to do with the circiut board of your tv. if not its simply the power switch of the tv. that can be replaced bby repair man.

Jan 27, 2008 | Mitsubishi WT-42311 42" Rear Projection...

1 Answer

I have a Mistubishi 42" turns off at turn on.

Chassis VK-20 made in 2002,_WT-A42.pdf

The service manual can be downloaded here, you will need the free adoe acrobat reader from Probably already have it)

error 22 says SHORT PROTECT CIRCUIT in the service manual, it has all the wiring and board diagrams as well as replaceable parts and part numbers

Please give me a good rating if this helps you solve your problem, or if this was what you were looking for which I believ it is.

Extreme caution should be taken, death has occured often from inexperience, so please be warned, and understand that neither I or will be held liable for how the info is used, I will only put this into solutions that involve products that can be deadly if serviced wrong.

Thank you very much for the question, I hope this is what you wanted.

Apr 11, 2009 | Mitsubishi WT-42315 42" TV

1 Answer

Color loss on mitsubishi 73" medallion hd1080

TRake the fron grill off and the front board 6- screws on my 65inch there are three adjustment knobs one of them wil adjust the huge
one the whole screen,if not that,I have heard mold growing on and the inside of the blue bulb because it runs the coolest out of the three.

Jan 31, 2009 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer


this sound to me is a convergence problem may cost to you 350$ if you want to do it by your self need to buy 2 stk 392 110 but if you dont know nothing about electronics i recomend you ta`ke the tv to a service center

Jul 27, 2008 | Mitsubishi WT-42313 42" Rear Projection...

1 Answer

Rear projection tv


Have you checked your convergence correction Amplifiers? These usually go bad. I believe they are the STK392-XXX (XXX stands for the last 3 digits) Mitsubishi uses the 500 series,They should be replaced with new ones and the bias resistors need to be changed also.

I would suggest taking it to a shop to have the replacement done, but if you want to do it yourself here is a site that can help:

There are many other sites that can help you install the ICs but this one is very accurate.

If you need any help in removing and replacing the ICs let me know and I will be able to walk you through the process(be prepared to take picture to help me see what you are looking at so I can help faster.

Thank you,

Dec 07, 2007 | Mitsubishi WT-42311 42" Rear Projection...

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