Question about Mitsubishi WT-42311 42" Rear Projection Television

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My WT-42311 will not stay on. When I push the power button, the green lignt stays on for 2 second, blinks twice & shuts off.

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Hi,

The code 2-2 does indicates a short protect fault, which is usually caused by a failure in the convergence section. This is a very common repair in these sets. The typical repair involves replacing the convergence ICs (integrated circuits), and testing/replacing two small pico fuses.

The replacement ICs for your set are part number: STKxxx-xxx and are available from www.encompassparts.com for $19.95 each (needs two). You will also need at least one (likely two) 5 Amp pico fuses. If you wish to repair this yourself, the ICs are located on the large heat sink on the center (Power) PC board. The fuses are also on this board, near the center, location numbers: FXAXX and FXAXX. You would need soldering equipment and very good soldering skills to replace these parts.

An image of the same would be ( the below one is a generic picture ) :-

My WT-42311 will not stay - 659b47f.jpg


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If you were to call a local shop to repair this, the labor to replace these is roughly $250-275 (in my area) if the TV were brought in to the shop. Please add a trip charge if repaired in the home.

The fuses must be tested with a multimeter to see if they are bad. They are only $2.50 each, so most people without a meter just change them both. If the repair has any problems, like a solder bridge, you may need a meter to check them after that. A good magnifying glass helps prevent solder bridges (for me, anyway).

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Oct 09, 2010

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First do a hard reset. Merely unplug the power cord for 4 hours, then restart it. This will correct it if the cause is corrupted soft codes.

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If this has helped you, rate this solution as very helpful as I do this here for free.

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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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when it shuts off press ON THE FRONT OF THE TV both the menu and input (or device) buttons at the same time for at least five seconds and release both buttons.

The power light will blink a two digit error code.

for example---2 blinks, a pause and 2 blinks (this is the most common error code)

Let me know what code you find and I will tell you what it means and what can be done.

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

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1 Answer

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2 of 3 circuit boards in your Mits can give your symptom...

1)Center power supply board = open fuse & bad IC's

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A qualified Mits tech with parts in stock can fix it.......T.

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convergance ic bad
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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Mitsubishi tv wt-42311


convergance ic bad
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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