Question about Mitsubishi WS-65869 65" Rear Projection Television

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Tv timer blinks and won't turn on - Mitsubishi WS-65869 65" Rear Projection Television

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  • Mitsubishi Master
  • 14,553 Answers

ONLY 1 of 2 things can cause this problem----

First thing to do is remove front speaker grill--it should pull out and is secured with plastic pegs--behind it you will find an inspection plate---

Notice the one or two pairs of wires coming from the front keyboard of the set---remove the inspection plate and follow the wires to the right--you can unplug both plugs(most have two and they are marked with letters and different sizes so you cannot get them wrong)

The idea here is to remove the front keyboard with its reset button etc from the circuit---You will still be able to try to turn the set on with the remote---

These sets have a Receiver that is called a DM board--(large metal box to the left as you look from the back) and if the power goes out the green light will blink for about 70 seconds and then go out---it is the Receiver booting up. It is called the DM board.

If disconnecting the keyboard allows the set to turn on--you have a bad reset switch and two choices---either operate the set only with the remote or to remove the front screen and get at the reset switch (it is tiny) and remove and/or replace it.

If disconnecting the keyboard does not restore the set to operation---the receiver is bad---there are 4 or more caps and some pico fuses that can fail in that unit---Mitsubishi no longer sells or repairs these--if it is bad and not the caps there is a company you can send the unit to and have it repaired--if you need to know their name let me know---

You can call them and get a quote for repairing the receiver.


Let me know what more information you need--I am here to help.

If this told you something you did not know rate this solution as very helpful as I do this here for free.


SD TECH

Posted on Oct 07, 2010

  • timothy170 Apr 04, 2011

    I followed your instructions, which by the way was helpful. I know now that the D M board is Bad. Because with the keyboard connector disconnected, no flashing lite, and no power by ways of remote control. To think all I did was to remove power for just of couple hours. Then that **#*#* flashing green lite. It's time to update to a Flat screen. Thanks again.
    Timothy170@cox.net

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Slinteriors
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SOURCE: Timer light continous blinking,tv won't

Thats a common problem thats almost always caused by failed capacitors on the DM powerr board. You can get the WS55859 DM repair kit from www.tvrepairworld.com the kit contains the upgraded capacitors and the CD with repair instructions.

Posted on May 30, 2011

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