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When i turn on tv it keeps shutting back off - Televison & Video

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  • jane1260 Sep 13, 2008

    tv shuts off as soon as i turn it on

  • jane1260 Sep 13, 2008

    I tried unplugging it for over an hour the tv still shuts right off as soon as i turn it on i don't know what fuses to look for how would i know if they are blown? it's a mitsubishi i'm lost

  • jane1260 Sep 14, 2008

    thanks for the help

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Your TV is going into what is called the "protect mode". There are a variety of reasons it can do this. None of the reasons are anything that can be fixed without having some kind of electronics knowledge and the proper test equipment to figure out just what is causing it. You have mentioned that you do not know how to find or even check the fuses in the TV. This would indicate that you would need to have the TV serviced by a qualified service technician.

Please just follow this link and you can find a service center for your Mitsubishi TV:

http://direct.where2getit.com/cwc/apps/w2gi.php?template=search&client=mitsuservicer#?mid=174138

If you cannot click the link, just copy and paste it into your internet browsers address bar. You will save yourself money by not trying to fix the TV yourself, since you have no experience doing these type of repairs. It is very easy to cause more damage than you have started with if you are not familiar with how to troubleshoot a TV. it is also very dangerous to attempt this since TV's have some very high voltages inside of them. Do yourself a favor, get a qualified service technician to check it our for you. In the long run, you would be much happier, safer, and save yourself money.

Dave

Posted on Sep 13, 2008

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The condition of your TV called power supply overcurrent shutdown. The TV is going into a protection mode to prevent further circuit damage. That's why it will not turn on or not powering up. I would concentrate on the power supply section board. Bad regulation of the incoming voltage could caused this issue although,there is a capacitor across the incoming line and nuetral.Maybe its leak or dry up and cause the problems,change it out with one of identical rating .I would probably also check the flyback circuit and flyback transformer although now you are getting into dangerous area,especially if you have no electronic experience background. It could be also be a loose ,crack or cold solder joint,a blown fuse,fusible links or other component .It could be one of several boards.Unfortunately the level of sophistication on these TV make it virtually impossible to diagnose them further without taking them apart and probing around with a multimeter and other tools.This TV is handy enough to take to a repair shop find a good one.You will probably have to pay $75 to $100....

Hope this may help you..

Regards,
VOTIT

Posted on Sep 13, 2008

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You have a power supply problem you need to have a tech fix it the power supply is bad

Posted on Sep 13, 2008

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Hi Did you check the small fuses and resistors near to the convergence ICs? if they keep blowing there is a powering problem on the convergence board.

Posted on Sep 13, 2008

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That is the internal safety switch, that detects a fault and keeps tv off.

Try first unplugging power cord for one hour.

If it does not work it means that there is an internal fault, probably a faulty component or a board in need of replacement.

If you need to call a technician you can ring the phone number listed on the owner manual.

If there is an error code post here

Posted on Sep 13, 2008

  • Ginko
    Ginko Sep 13, 2008

    The only fuse that is easily accessible is the one in the power supply, and that fuse is ok, when it blows you get no power at all.

    The tv components must be tested thoroughly, for that job you need a technician.

    If you get an error code we can find out what the problem is.

    Let us know TV make and model, and if you get the light flashing any number of times.



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