Mitsubishi WT-46809 46" Rear Projection Television Logo
Anonymous Posted on Aug 23, 2009

TV wont stay on

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?

1 Answer

Eric Rotmil

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  • Master 587 Answers
  • Posted on Aug 23, 2009
Eric Rotmil
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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

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1 Related Answer

Anonymous

  • 3459 Answers
  • Posted on Sep 27, 2009

SOURCE: mitsubishi problem

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

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Related Questions:

6helpful
1answer

Tv WONT STAY ON

When the power light comes on and then goes off perform the self check feature the model you indicated has:

On the front of the press and hold both the MENU and INPUT (DEVICE) BUTTONS both for at least 5 seconds and release both buttons.

The green power light should blink a two digit error code--most common is 2 blinks, a pause and 2 blinks.

Let me know what error code you find and I will tell you what it means.

If this information has helped you rate this solution as I do this here for free.

SD TECH
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Mitsubishi problem

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
1helpful
1answer

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
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Mitsubishi wt-46809 wont turn on

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

electech
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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/
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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
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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).

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Wont stay on

I can help u fix in live chat!
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