Mitsubishi Diamond WD-65831 65" Projection HDTV - Answered Questions & Fixed issues

Hello... About the only thing that can cause this symptom is a bad lamp. Most of the time, you can look at the lamp and tell if it's bad. If it's not shattered, it might have an odd bulge at the base of the reflector, or a gray circle on the clear tube at the bottom. I hope this helps!

Mitsubishi... | Answered on Nov 27, 2017 | 84 views

have you tried a new lamp? part# 915P049020
web site:

I strongly recommend the original part# as many replacements will not work properly in a Mitsubishi.

Mitsubishi... | Answered on May 16, 2015 | 130 views

Hello, all i can say is it may have been a bad lamp, see if they'll warranty it....tks

Mitsubishi... | Answered on Jan 31, 2015 | 59 views

A bulb may be dying on you Like an vapor lamp--this is one of their failure modes.

Mitsubishi... | Answered on May 08, 2014 | 146 views

Take it out and get in there with a vacuum. There are fans that keep it cool and there is a color wheel that might be damaged. All those shards need to be removed

Mitsubishi... | Answered on Jan 22, 2014 | 96 views

check TA connecter loose, No Vcc to IC2K01, ...

Mitsubishi... | Answered on Nov 21, 2013 | 69 views

if their is a good sound but with no picture the lamp get busted .

Mitsubishi... | Answered on Sep 24, 2013 | 29 views

I presume you mean 1080i and if so what is the source for the signal?

Mitsubishi... | Answered on May 27, 2012 | 33 views

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Mitsubishi... | Answered on Feb 20, 2012 | 79 views

Good day!!!

That problem is not fixed by resetting of unit..

That problem is usually cause of faulty light engine..Try to replace it with the part # (part number usually indicated on the engine itself printed in sticker)..

Hope it helps..

Mitsubishi... | Answered on Jan 14, 2012 | 373 views

Check the Lamp Fan, if it stops running when Lamp trys to Light then set will shut off to protect the Lamp.If the Lamp Fan is OK then it will be Ballast that connects to Lamp it is what powers Lamp on.

Mitsubishi... | Answered on Jun 29, 2011 | 132 views

There is little you can do. Your DMD's micro mirrors are stuck. Need to replace DMD.


Mitsubishi... | Answered on Jun 18, 2011 | 66 views

The convergence ICs most likely need to be resoldered very common problem with some models Mitsubishis.I would try resoldering the ICs pins.

Mitsubishi... | Answered on Jun 13, 2011 | 130 views

Have you tried accessing the self diagnosis feature by pressing the menu and device buttons both together and holding for for 5 seconds? If not try that and let me know the error code. It will be a two digit blink sequence which will repeat a few times. Let me know what the blink sequence is.

Mitsubishi... | Answered on Jun 08, 2011 | 93 views

Your first problem has a connection with the bulb, once the bulb is faulty you will be able to turn it on but subsequent shutdown will follow. Now the second problem might be in the power supply section since it would not turn on totally. The trouble now is quite technical and complicated, I've advice you to look a professional to troubleshoot the problem.
Hope it may help you.
Have a nice day!
Thanks for using Fixya.

Mitsubishi... | Answered on Feb 11, 2011 | 53 views

Try lamp, and thermal sensor.

Mitsubishi... | Answered on Jan 18, 2011 | 184 views

If the light continues to flash with no picture and you still get sound, your bulb is out. Though it could be any number of issues. To reset a Mitsubishi, hold the power button down for approx. 10-15 seconds until you hear a faint click.

Mitsubishi... | Answered on Jan 11, 2011 | 1,216 views

12 means no error. The device and menu buttons have to be pushed after unplugging and re-plugging for the error code operational check to work. If you have done that and if its still the same, then please tell me which LED is blinking so that I can help you. I remember your tv has 3 LEDs at the front.

Mitsubishi... | Answered on Jan 08, 2011 | 308 views

Projection TV sets have two very common problems oulined below.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • No Audio/Video - TV Makes Chirping Sound
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

TV set after fluid change


2c07611.pngSolution #2

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from that includes replacement coolant, photos. instructions, etc

Mitsubishi... | Answered on Dec 24, 2010 | 244 views

Try website like to buy an exact remote to the original remote.

Mitsubishi... | Answered on Oct 21, 2010 | 60 views

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