Question about Mitsubishi WS-55907 55" Rear Projection Television

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TV will not turn on.

I have a WS-55907 that will not turn on at all. When I plug it into the wall it sounds like it is getting power. Checked the fuse at the power cord and it is good. Any suggestions?

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  • Brandonfire5 May 27, 2008

    Does anyone have a schematic for the WS-55907?



  • kennethstrze Nov 29, 2008

    WHEN I PRESS THE ON BUTTON,TURNS GREEN. IHEAR A CLICK THEN TV SHUTS OFF. CHECKED THE FUSE BY POWER CORD.

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Same problem and Just had repair man out. Said it was the signal board and that with this model it is a very common problem. Mitsubishi no longer makes the parts to fix it. If you want to scout online for one th product number for a signal board is 930b868003

Posted on Dec 16, 2008

  • Billkneale May 02, 2011

    If it is clicking you need to check the power Circuits both switched and un-switched. If I had to guess you have lost you 24pos or negative voltage. both circuits have a diode and a fuse on the board that need to be checked. If the diode is bad you must replace it the the same Ultra High speed type.

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Check power converter/regulator

Posted on May 27, 2008

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