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SET TURNS OFF IMMEDIATELY AFTER BEING TURNED ON

I have a 50" MITVS50703 purchased in 1998. It was working perfectly up until 2 weeks ago. Either from the remote or by pushing the POWER button on the set---the light goes green and then in 2 seconds goes out again and the set nenver turns on--no video, no sound.

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This sounds like the convergence circuit going bad. it is very common on your model. it is some bad parts overheating. in time the tv will stop comming on. a cost of repair will range around 400.00. it is a good tv and worth a repair. or the main power supply board gone faulty and needs replacement.

Posted on Jan 26, 2009

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Most likely this is overload protection. This tv will definitely require repair and I would recommend professional service. If you need further assistance let me know. http://direct.where2getit.com/cwc/apps/w2gi.php?template=search_new&client=mitsuservicer#?mid=174138
follow this link to locate the nearest service rep. and you can inquire with them about an estimate. also please take a moment to accept and rate my solution accordingly.
Thank you,
Lee

Posted on Jan 26, 2009

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I would start by unplugging the tv and waiting about 5 minutes for any capacitors to discharge. Then remove the back panel of the tv, and inspect the main circuit board. The first thing to be checked is the fuses. There will be atleast 1 or more fuses on the circuit boards, and hopefully 1 is blown. Is it DLP or rear projection?

Posted on Jan 26, 2009

  • Peter Castaldo
    Peter Castaldo Jan 26, 2009

    If there is a bad circuit board, it will look different. It will have a brown color in spots. Anything worse than the obvious burnt board, bad bulb, or blown fuse is really meant for a professional repair person, they have equipment to help diagnose the electronic parts. I have has tv's fixed before, and it usually costs about $250 for something relatively simple. If I can be of any more assistance, please let me know. Please remember to rate your Experts, thanks.



    Pete

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Its the problem of main board as the components getting over heated and the tv shutts off.it has to be checked with a meter to replace the faulty component.

Posted on Jan 26, 2009

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Try unplugging it for a bit. This happened to mine and that worked. It may also be the lamps

Posted on Jan 26, 2009

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