Question about Mitsubishi WS-65907 65" Rear Projection Television

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I have a problem with my WS-65868. Picture &

I have a problem with my WS-65868. Picture & sound not wanting to come on. I hit the reset button and the green lights continious to blink but will not reset? It is 5 years old. I think a power surge may have hit it. Thanks

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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.


SD TECH

Posted on May 06, 2010

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You may want to remove the front speaker grill and inspection plate behind it and look carefully across the front of the three main boards--it will appear as a discoloration of any parts on the boards-it does not take a lot to do fatal damage to the board--if you see any actual liquid on the board--do not touch it--you have to look mostly at the first few inches from the front of the boards--if you do not find any Glycol signs I have only one other suggestion:

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Please rate this solution........................

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