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I have an old misubishi 50" TV. It was working good last night. I turned on the sleep timer. Now it won't turn on. It makes a noise like it wants to tun on, but the screen doesn't show picture and there is no volume.

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  • gswenson Oct 29, 2008

    Mitsubishi big screen

  • gswenson Oct 29, 2008

    model no. VS-5005R

    AC120V

    60Hz

    270W

  • gswenson Oct 29, 2008

    Mitsubishi big screen Model No. 5005R
    AC120V
    60 Hz
    270W
    TV will not turn on.

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The noise like " like it wants to turn on" is an internal safety switch that tries to turn the tv back on.

What happens is that the TV main chip detects an internal fault (bad components, wrong voltage , short), and send the TV into a special diagnostic mode, where an internal switch keeps turning the set off to prevent further damage.

When this happen is said that the TV is in protect mode.

The clicking sound that you hear is the protection circuit switch that keeps turning the tv off.

Common causes for TV in protect mode are: horizontal deflection and convergence problems , power supply problems, and more.

From a user level point of you all you can do is unplugging power cord for a couple of hour, so to drain power completely.

If the problem was caused by electrostatic phoenomena, or the protection circuit was stuck because of a false bad feedback from one of the boards, this will reset and restart the tv.

If that does not work, then it means that there is a real problem, and the tV must be taken apart and tested by a qualified technician.

If you want to call a repairman you can use the phone number listed on the owner manual.

Posted on Oct 29, 2008

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>check the vent / exhaust fan
>what lights are ON or FLASHING ?
>re-seat the LAMP

Posted on Oct 29, 2008

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Posted on Jan 02, 2017

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