Question about Mitsubishi VS-50111 50" Rear Projection Television

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Picture flickers for 5-10 minutes then goes black

When I first turn on this exhibit in our museum the picture flickers and is jumpy. The problem gets worse, then the screen goes black in 5-10 minutes. The jumpiness is in narrow horizontal bands from top to bottom.

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Change the power capcitor its has been damged or bed if have no idea u have to go with a professnol repairer

Posted on Aug 07, 2008

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  • Master
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Dear Sir/madam,

1)Try Hard Reset. Unplug the power cord for a full 4 hours. Then power it up again.

2)Give some adjustment on the brightness to keep it away from the flicker threshold.

If it is not fixed it may be convergence problem. U can replace convergence IC's or replace the convergence board. And also i I suspect it to be the HV and HOT area, very common in these models. You will need a tv tech on this one.

Thanks
good luck



Posted on Aug 07, 2008

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  • Master
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In the back of the t.v. there is a mother board. on the mother board ( im not sure what it is called so i will describe it)
it looks like a black tune. it has a red wire comeing out of he top going to the front of the t.v. connecting to the picture tubes. now see what happens is that tube will heat up and sometimes loose connection. what i found to be helpful is to stick a peice of cardnpard under it so it gets a good connection again. but do becarful because it is high voltage....... so if you decide to try to work on the t.v. please unplug it first.

Posted on Aug 07, 2008

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Posted on Jan 02, 2017

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