Question about Mitsubishi WS-55859 55" Rear Projection Television

1 Answer

TV will not come on

I have a Mitsubishi WS-A55 rear projection TV manufactured in March of 2003. When I try to turn on the TV, nothing happens. I unplug it, let it sit for a few minutes, and then plug in. The timer light next to the power button flashes a few times and then goes out. The TV still does not turn on. What is my next step? Thanks!

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  • burnsdarin Oct 02, 2009

    The light comes on, flashes twice, and then shuts off.


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The flashing LED may be telling you the source of the problem; note the relative spacing of the flashes and the number of times it flashes before staying off. The set is trying to tell you where it is sick but I suspect it is related to the power supply; the most common failure point of most modern sets. If you post back here as a 'comment' you won't have to repeat your symptoms.

Posted on Oct 01, 2009

  • Steve Allison
    Steve Allison Oct 02, 2009

    I'm pasting my normal suggestions below which may help you:

    If it just fails to turn on, the main power supply is probably at
    fault and without some technical background and a couple of test instruments,
    you will not be able to do the repair yourself.

    you can do though is; unplug the set, let it stand overnight or at least
    several hours, remove the back panel and look for a separate board with mostly
    larger components on it; it will have a ferrite core transformer on it and
    several larger capacitors which are cylindrical and mounted vertically to the

    Before touching anything inside, especially on that board,
    allow several hours to be safe since the larger capacitors can hold a painful
    voltage charge for some hours.

    If you see signs of overheating such as discoloration of
    the board material, it may not be repairable but if you can find a part number
    on the board, you might be able to buy the power supply from the manufacturer and install it

    If there are no signs of heat damage to the board, there
    may be companies offering to repair it as a subassembly instead of repairing
    the whole set which could be much more expensive.

    you choose to replace or have it done, the power supply
    still may not be at fault since most
    are capable of switching on and off if a downstream problem is causing an

    Good luck-


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SOURCE: My Mitsubishi projection tv WS-A55 video isssue

Colored ghosts (red,green,blue) is convergence bad. If can't adjust from menu, then bad circuits. Call someone for approximate estimate.

Posted on May 03, 2010

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