Question about Mitsubishi VS-50605 50" Rear Projection Television

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TV powers off 1 second after turning on

When I turn my TV on it powers off within one second. I would appreciate any and all advice you could give me. Thanks.

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  • redcardref May 05, 2008

    My Mitsu just started the same problem. Not sure of the model, it's a 42" rear projection.

  • ignatz49 May 13, 2008

    TV shuts off 1-2 seconds after turn on. Was told it was the power supply.


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I agree with the above. One thing to add. There is often a sticker inside the TV indicating where all the fuses are located. I typically find that the fuses are green.

Should also check the error code. Not sure how to do it on your set. You often press two buttons for five seconds (menu and device/reset/video buttons). This may help identify the problem.

I would do the following:

1. Unplug TV.

2. Check for fluid leaks on the CCA's from the CTRs. Clean it if as much as possible (power off).

3. Check fuses.

4. Plug TV back in.

5. Check error code.

6. If fluid was found/cleaned and the fuses are OK and no error codes exist, I would try turning on the TV. Otherwise, post your findings and go from there.

Posted on Aug 14, 2008

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If you know what your doing the first step would be to check the fuses . They are not all glass fuses , some look like resistors but do not have the color bands . Most of the time you'll see them close to the transformer in the power supply in the secondary section . Some are green or yellow . Once you find them you''ll need either the schematic to trace where they go or follow there path when you have found the bad ones to see what section they go to . Sometimes it the convergence section or your picture tubes may be leaking on the signal board (which is on the left side) or possibly a bad flyback transformer . Some power supplys had loose connections by the secondary transformer or possible caps that buldge at the top of them by the flyback transformer . They were 100uf @ 250v caps . All of this could be tested with a volt-ohm meter and set should be unplugged . If your picture tubes are leaking you'll see with a flashlight a pool a coolant on the board . Sometimes it could be as small as 50 cent coin . Look at the metal shield suurounding the tubes then look below on the board . Hopefully this is not your problem . Good luck

Posted on May 30, 2008

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