Question about Toshiba TN50X81 50" Rear Projection Television

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I have a TN50X81 TV with no picture on any inputs

When I turn on the tv the screen will flash white for a second and I can see what input being used and the channel the tv is on, get full sound but no picture have called for a tech but by the time he comes to the house the picture start to work again. It will work for couple of months but then it will go out again.

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There is some shorttracking which didables some components from working temporarily creating this problem.

Posted on Dec 13, 2008

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Check all the cables and connection, ensure this is not just because of a broken contact in the cable.

Posted on Dec 13, 2008

  • Ginko
    Ginko Dec 13, 2008

    If the TV turns itself off completely, with no power and no led light, same as if the power cord was unplugged, then this is either a defective power cord or power adapter.

    If the TV goes on standby state and does not restart, then tv is on protect mode, and this happens when a fault is detected. This means that there is a defective component that is failing only under determined circumstances.

    If the AC networ is unstable, then that can be the cause for the TV goin off. In this case you restart the tv by leaving power cord unplugged for a while. this can also be tested by a technician.

    Call the technician the same and have the fault fixed, before the problem excalates and you get more damage to the TV set.

    If you are in case A, the technican will test power board, and easily spot and repair the fault, usually this kind of problem can be caused by a defective capacitor on power board.

    If you are in case b, it may be more difficult for the repairman to find the fault. This kind of faults are often caused by a faulty IC( for example defective convergence ICs) or a faulty component on one of the internal boards, and it is usually more difficult to locate the problem.


    If yo


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