Question about Mitsubishi WT-46809 46" Rear Projection Television

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Blue Gun non-responsive

Hello, I recently had a this 42" TV model vs-42oca  given to me as it was replaced with a newer model.  I was told that the picture was not bright enough and it had a few problems with darker or night scene's.  I popped the back off to see if there was an internal adjustment for contrast and brightness, when I looked in I noticed that the Blue Gun was not working.  My question is, would there by any chance be a Fuse that could be associated with this module, or is there something else that could be wrong ?  Or is the Gun basically shot ?  If so, what are they worth to replace, if a person can even obtain one since the TV is quite old.  I have also tried to unplug the blue on the board and insert it into the Red and Blue hook ups to see if I could get a response from the Blue Gun, but it would not respond. :-(

Any help would be greatly appceciated.


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Re: Blue Gun non-responsive

Blue crt gun is dead... it has to be replaced. Check carefully the gun neck if theres a crack or damage, I'm suspecting  an overheating yoke ( a bunch of wires around or embracing the crt gun's neck), if theres a sign of overheating, you need to replace the yoke too, not doing it, your new gun will suffer the same fate of the old one, wasting your money.

Posted on Oct 29, 2007

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