Question about Mitsubishi WT-46809 46" Rear Projection Television

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Turns green light on, goes right back off

This sounds like a common problem with this tv, but I have not seen any specific solutions. Anyone have a solution?

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This is a protection shutdown circut kicking in, This is done so that if your tv is drawing to much current due to a overloaded circuit, it will shut down instead of burning up. Most of the time it is the convergence ic circuit or the power supply regulator ic. Thanks

Posted on Apr 02, 2008

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There are a few things that you would need to know first, like is your set shutting down after the relay clicks, or no relay click. Also did you do a self test on this set. Press the menu and Device/input button at the same time for 5 seconds, This should give you a two digit code. What is the Code? It could be a number of things that cause the set to shut off after powering up. Check the code first, because this tell a tech what area the problem is in. If you want to change things I would guess by saying check the fuses F9A04 and 05 also change the capacitor C9a60.

Posted on Apr 02, 2008

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When you turn the tv on it go right back off Mitsubishi WS-55511 55 in. It about (5)yrs old I have try unplugging the tv for about 3 to 5 minute


Do this: When you turn it on and the green power light comes on and goes off:

On the front of the set press and hold BOTH the Menu and Input buttons at the same time for at least 5 seconds and then release both.

This model has a self check: The green power light will then blink a two digit error code: most common is 2 blinks, 2 blinks and a pause and repeat the error code at least 5 times.

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

I hope you get 2,2 as it is the most easy to resolve.

If this told you something you did not know rate this solution as very helpful as I do this here for free.

REGARDS, SD TECH

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2 Answers

I turn the tv. on , the green light comes on then


When you turn it on and it shuts off---ON THE FRONT OF THE SET PRESS AND HOLD BOTH THE MENU AND INPUT(DEVICE) BUTTONS TOGETHER FOR AT LEAST 5 SECONDS AND RELEASE BOTH BUTTONS.

Power light should 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 error code you get and I will tell you what it means and if 2-2 what the problem is.

If this information helped you, rate this solution as I do this here for FREE.

SD TECH

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1 Answer

Lamp light turns red


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Now with all this info. If the lamp lights (as seen from the back of the set) and goes out after a few seconds and you did not here the color wheel spin up, the color wheel is bad.

If you here the color wheel spin up and no ticking sound, the Ballast is bad.

The ballast part no. 939P978010

The color wheel is not avialable from Mits. You will have to replaced the light engine. It cost to much. Just buy a new tv.

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1 Answer

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i have seen this before and it may be the front power button being stuck and when your remote turns it on the stuck button turns it back off again. I have an older mitsubishi that will not boot up right sometimes and i have to unplug it and plug it back in fot it to come on. I used to pick up broken tv and fix the power buton and resell them

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I had the same exact problem.
I removed the bulb and cleaned it. There is a small screen at the top of the bulb and it was covered with dust. Once it was cleaned I replaced the bulb and it solved the problem.
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