Question about Mitsubishi WS-55711 55" Rear Projection Television

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What is a DM board for a Mitsubishi WS-55711 55 in. Told it's a repair kit for this television. Where can I buy it? Thank you,

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My grandfather passed away and left me a WS-55711. The picture screen is amazing, but then suddenly the unit died. A service tech came to the house and after diagnosis, told me (like so many other people) I needed a new DM board.

In the past I was a amateur radio enthusiast, so I have worked on Transmitter/ Receivers. However this was a while back. If I can save money for xmas, can anybody tell me where to buy a DM board and offer the instructions how to complete the task. Do I need a service manual to understand the circuitry for this DM board.

Thank you

Posted on Nov 03, 2008

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Lost power early this morning and now the green light is flashing - reset does not help No picture and no sound

Thats a very common problem caused by weak capacitors on the DM board. When they drain they cant recharge when power is restored. The Mitsubishi repair kit called the WS48511 - WS55511 DM repair kit from is the kit that will usually repair the issue. The kit contains the Capacitors and the CD with repair instructions.

Sep 12, 2011 | Mitsubishi WS-55511 55" Rear Projection...


Mitsubishi won't turn on and has flashing power/timer light.

All Mitsubishi WS-XXXXX model projection TVs have defective capacitors on two different boards which will fail after about 5 or 6 years. Getting parts is the difficult problem.

The two boards are the power supply board and the DM board. Mitsubishi is aware of the problem and sometimes can be talked into offering money to help fix or purchase a new unit. I have direct evidence of customers getting $500.00 towards a new unit to settle the issue. Of course this requires an agressive posture. But let's face it, they made the defective units, they sold them, they refused to admit that they made a mistake, so why shouldn't they pay?

This model has a documented problem of electrolytic capacitor failures on the DM board and power supply board. There are no replacement boards available but there is a repair kit for each board available at which has the usual parts that go bad and generally will repair the unit. The cost is $36.00 US per board. It is not an easy repair but tvrepairworld has very good installation instructions as well as videos you can watch on their web site.
TV Repair World has just added a new repair kit which has the parts for both the DM and power boards for $61.00 and shipping. For my money that is the kit to get. The kits come with excellent instructions and pictures as well as online help.

Thanks for using FixYa and for the great rating. Please consider a testimonial. Thank you.


on Nov 30, 2010 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

Blinking green light on my mitsubishi tv....model ws-65869

Replace the Capacitors on the DM board. You can get the WS55859 DM repair kit which covers your model from which has the caps and the CD with repair instructions

Jul 14, 2010 | Mitsubishi WS-65869 65" Rear Projection...

1 Answer

Not work ws-65869

The DM capacitors need to be replaced. Heres a link to the DM kit for your model which contains the replacement capacitors and instructions with pictures that show how to do the repair.

Jun 13, 2009 | Mitsubishi WS-65869 65" Rear Projection...

1 Answer

Blinking green led light after power outage will not reset set is approx. 6 years old model mitsubishi w55511

had same problem with my tv.Technician told me to remoe front cover and unplug the 2 plugins going to the buttons then try the mistubishi remote to turn tv on.Did this and worked fine with remote.

Apr 05, 2009 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

Mitsubishi 65" model # ws-65511

The steady green blinking led is due to the DM not completeing the boot Cycle. You can get the repair kit at the following link which contains the replacement Capacitors and step by step detailed instructions so you can do the repair yourself. Very inexspensive Kit

Mar 02, 2009 | Mitsubishi WS-65511 65" Rear Projection...

1 Answer

Blink green light of death - mits ws55613

you can get the repair kit which contains the replacement capacitors and the CD which includes detailed photos that show and explain how to do the repair, and the cD even contains the full service manual with full schematics manual as a bonus. Heres the link to the proper DM kit for your model.your model is the V23 chassis.

Jan 24, 2009 | Mitsubishi WS-55513 55" Rear Projection...

1 Answer


You can get the V23 DM repair kit at the following link which has the replacement capacitors and the instalation instructions on Cd which has pictures of the repair. Its listed under the repair kit category.

Aug 18, 2008 | Mitsubishi WS-65513 65" Rear Projection...

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