Question about Mitsubishi WT-42311 42" Rear Projection Television

6 Answers

TV Won't Stay On...

My Mitsubishi projection TV worked fine, then shut off and when I attempt to turn it on, the light comes on for about 3 seconds and shuts itself off, without sound or picture. I tried pressing the menu and input buttons simultaneously but nothing changed. Please advise...

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Re: TV Won't Stay On...

Same problem, same solution. Small green pico fuse on the power supply board. There is a sticker inside the back cover with the layout of the fuses on the board. Check them all, one of the 5A125V is bad on mine. I have the board out, now I just need to locate a replacement and someone with the skill to solder it in for me. Thanks for the help...hopefully this saves me thousands on a new TV. I bought this TV five years and one month ago to the day. Guess when the extended warranty ran out...a month ago today.

Posted on Jul 19, 2008

Re: TV Won't Stay On...

Small green pico fuses repair turn off problem

Posted on May 10, 2008

Re: TV Won't Stay On...

I found a blown fuse in the circuit board 5amp125volt.
replaced and the tv works as it did before.

Posted on Feb 06, 2008

Re: TV Won't Stay On...

Mine did the exact same thing after I turned it on and turned off too fast. Checked all the fuses with a multimeter and found a bad one. soldered in a new one and works perfect now. $7 fix with a few minutes of my labor. I got lucky that it wasn't something particular that blew the fuse but that is a good place to start

Hope this helps.

Posted on Dec 21, 2007

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Re: TV Won't Stay On...

I had a service some out and they replaced the amps and the TV has worked fine since then....

Posted on Nov 27, 2007

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Re: TV Won't Stay On...

Fuse do not blow for no reason, th reason thy are blowing is he convrgence iC"s are going bad.

Posted on Aug 16, 2008

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SOURCE: TV Doesn't stay on...

base in your comments in your TV you have defective power oscillation circuit! and need to diagnose your TV with a qualified technician! now if you have knowlegde in electronic trouble shooting i can give you the method to fixed your TV. Thanks in Advance!!!

Posted on Nov 15, 2007

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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

2)HV scan board defective.....

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

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