Question about Mitsubishi WS-55859 55" Rear Projection Television

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Mitsubishi ws 55807 have the blinking lights problem and not powering on

I appreciate your description on how to fix the DM board but the illustration is totally different to the mitsubishi ws 55807 rear projection. I desperately need your help on how to fix this power on issue.

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  • asolor8067 Sep 25, 2008

    yes i have the same problem the blinking light and is not powering up. thanks

  • Anonymous Mar 29, 2014

    ws 55807



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Yes on some sets are a bit differant depending on the model number there is still a DM board. The disassembly is a bit different and the service manual will describe how to take apart the TV set to get to the DM board. The repair is the same for the DM board. I am sorry but I do not have the the service manual but one can be downloaded here: Good Luck

Posted on Jun 20, 2007


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The Bulb in the unit needs to be replaced. To confirm, look in the manual for the set and it will explain the flashing lights by the numer and duration of flashes. Hope this helps.

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Won't come on

The power board has failed and will need to be repaired or replaced. you can remove this board and, replace individual parts and save a lot of money. You will be inspecting for swollen capacitors and resistors. also, look for discolorations on the board itself.

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Dm board (power supply) for mitsubishi rear projection tv (ws-55807)

Good day,


If the indicator stays on then you may have an DM PCB problem and to correct this do the the folowing:

SYMPTOM: Power LED does not stop blinking after plug in.

CURE: replace C9B01, C9B02,C9B10, and C9B11 (1000 uFD 16V) on the DM PCB. Replace them with part # 181P734030 (680uFd 16V).

The DM Board (PCB) is located on the very left side of the TV looking from back. Caution on removing Board and note what cables you disconnect to access the Metal Shielded Board.
Good Luck, big IRISH.

Jul 22, 2008 | Mitsubishi WS-55807 TV

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I've got the blinking lights also. Model # WS-55613. Does anyone know what the problem is?

Dec 27, 2007 | Mitsubishi WS-55807 TV

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