Question about Mitsubishi WT-46809 46" Rear Projection Television

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Mitsubishi problem My Mitsubishi WT-46809 was arching for about 2 weeks. Now, I hit the power, the green light come on and then it turns off after 2 seconds. I see others have a similar problem but does anyone know if this is an expensive thing to fix?

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This is a very common failure on Projection sets. Its called a convergence problem.

You may have one or more of the following symptoms.

  • Screen looks 3D
    Colors don't line up
    One or more colors can't be adjusted when using the convergence menu.
    Screen is bowed or warped.
    No Audio / No Video

You can see some examples and find a fix here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on Sep 27, 2009

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Troublshoot Mitsubishi wt 46809


Fuse will not be bad if green power light comes on and stays on--if it came on and went off there is a self check.

Likely issues: if no sound also-----problem is in either power supply or set is in shutdown---has a latch circuit.

I have another suggestion based on having worked on hundreds of these sets-----Look first directly under the picture tubes and above the main boards---is there a gray or black plastic tray running under them?

Let me know what you have tried etc by pressing the "make a comment button" here-----

Mar 26, 2012 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

When I turn on my tv it will shut off


Model number is WT-46809?


If set comes on for a moment and then goes off(green power light)

ON THE FRONT OF THE SET PRESS BOTH menu AND input at the same time and hold both buttons in for at least 5 seconds---then release both buttons.

Watch the power light---it should blink a two digit code---ERROR CODE---
The most common is 2 blinks, a pause and 2 blinks-----set will repeat the error code about 10 times.


If you find this error code let me know the blinks and I will tell you what it means and may be able to tell you what is needed to correct it.

SD TECH

Oct 20, 2009 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

TV wont stay on


shutting down can be due to a blown fuse usually in the convergence section. the fuses are soldered in, with a voltmeter you can measure the fuses. if one is open then probably your convergence ICs are bad. about $250-$400 to have a field tech come to you and replace them. The other possiblity is a CRT (picture tube) fluid leak. this is more costly to fix, to check for a fluid leak pull the front lower panel and check for fluid on the chassis with a flashlight. I have sucessfully cleaning fluid from the chassis with electrical cleaner spray. after covering the chassis with a piece of plastic the set worked fine. A slow drip leak won't hurt the plastic, big leaks are another story.
hope this helps
Eric

Aug 23, 2009 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

TV won't turn on!


If it was arching, It could be the HV Transformer, or the High Voltage Block. It could also be that there is a High Voltage Leak at a Anode Cap on one of the CRTs. Because of the arching issue, I would call a Mitsubishi Professional to diagnose it. If you need help in locating one, call Mitsubishi at 1800-332-2119 and they could help you find one local to you.
I hope this helps,
Skyassoc

Jul 22, 2009 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

Mitsubishi wt-46809 wont turn on


it will need to be checked by a tech to determine the exact cause

electech

Oct 29, 2008 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

Mitsubishi wt-46809 not turning on


Your convergence amp ICs have most likely failed and that will shut the TV down. You need to replace both convergence ICs they are both STK392-570 you can get replacement ICs with free instalation instructions at the following link.
http://servicemanuals.vstore.ca/

Jul 18, 2008 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

Mitsubishi WT-46809 Turns on with Power light then turns off


there are 2 fuses -24v and 24 v normally would go out because
covergence ics failled . That would be a shutting down problem cased by missing those voltages.so you would need to replace those 5A (small green fuses) , you would need some kind of soldering and unsolderin skill) and the ics are stk392 570.two also. open the set from the fron ,taking speaker grill off and then the wood board behing (4-6 screws) you the the board in the center big metal heatsink. you would need to work from the back to repace those puppies.hdtvman

Jun 07, 2008 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

MItsubishi WT 46809- not staying on when turned on


One or more fuse devices open==caused by convergence IC

shorted. Solution==replace fuse(s) and STK I.C.(s).

Oct 08, 2007 | Mitsubishi WT-46809 46" Rear Projection...

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