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Picture is Blotchy or kind of a rainbow effect? We have a WD65731 65 DLP Mitsubishi TV.

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5 Suggested Answers

premtech
  • 934 Answers

SOURCE: mitsubishi wd-62825 dlp

The WD62825 has a Digital Module located on the left side of the chassis looking at it from the rear of the set. It's housed in a metal box that can slide out of its holder after removing the trim screws.
The module has its own power supply board and there are a group of 16v/1000uf caps on that board which commonly fail causing the constant flashing standby light. Further back on the module is a small board about the size of a matchbook called the E2P module. Its SMT (Surface Mount Technology) caps also commonly fail which can cause the same symptoms. Techs can tell whether the E2P has failed by simply removing it, hooking the DM back up and trying to power the set. If it powers on the picture won't be much good - but at least you can tell what's keeping it down...
Back to the caps on the pwr board. If they've failed they usually will buldge visibly on top. And ESR is almost not necessary. In any event that's the nuts and bolts on this model.
Is it a job for a layman? Yes and no - you might strongly consider a tech if you don't feel comfortable removing all the connections that the DM has with the signal board. There are about six - multi-pin - wired connections to unplug and then sliding the DM out of the unit and carefully removing the screws and latching to take the DM top cover off...
Hope this helps.
Bill

Posted on Nov 10, 2007

  • 87 Answers

SOURCE: My 2 1/2 yr old Mitsubishi 65 inch DLP will not turn on.E code 12

let it start up you will here things happening, engine will start first then a buzz to start the lamp if you here all of this you have a bad lamp.You should have a error code let the tv try to start leave it alone and see if you have an error. As soon as you reset the tv you loose the error.

Posted on May 01, 2009

tvrepairbiz
  • 63 Answers

SOURCE: vertical black lines on my 50" Samsung DLP TV

You need to replace the digital board

Posted on Sep 03, 2009

  • 125 Answers

SOURCE: Mitsubishi TV DLP 73736. No picture but has sound

Replace Lamp Mats has them for $99.00
1-800-628-1118

Posted on Mar 24, 2010

CaptainHawk1
  • 345 Answers

SOURCE: My mitsubishi 65-inch dlp tv

It's either mirror hinge fatigue or dust on the inside.
Mirror hinge fatigue can be fixed by putting a solid color picture (white or gray works best from what I understand) on the display and letting it sit for 20 minutes.
If it's dust, someone is going to have to go in there and clean it out.
Also could be a defective micromirror device.
Try the first suggestion and if it doesn't work, you're going to need a technician to take a look at it.

Posted on Nov 23, 2010

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Need help fixing the picture on an older Samsung dlp tv


You need to replace your color wheel. Part# BP96-00674A. This has been a common problem with the samsung dlp's. I hope this helps.

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Strange rainbow.reenish type effect


Did you notice any better picture when you play a movie on a DVD player or using a flashdrive on this TV? Is the picture quality better? Or is it the same? Try to check another cable connection or try to play TV channel thru internet. The last option in this case is to show a TV mechanic for he would better understand which part to order.

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Rainbow outline on the picture & the picture has turned black & white.


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Picture getting darker over the years


It could be your Light Engine. However, I would first check a few things:

1. Make sure your Low Power/Lamp settings are adjusted so that they meet your brightness needs.

2. Make sure you used a Mitsubishi original lamp, as generics get chewed through fast and hard.

3. Try another lamp; sometimes you can get a bad one in the bunch.

All those things don't work, consider a Light Engine ($400 + for parts; $300+ for labor)

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Colourful picture


Discoloration of this sort is caused by magnetism. All CRT TVs (like yours) have a de-gaussing coil around the picture tube that de-magnetizes the screen (more specifically the shadow mask) every time you turn it on. It is likely that the circuit that controls this coil is at fault. There is probably a cold solder joint where it connects to the main circuit board.

The other scenario is that someone (small child generally) has run a magnetic object very near to the screen, magnetizing the shadow mask (inside the picture tube) and causing a rainbow effect. This is less likely if the rainbow effect is a nice even circular shape. Generally if it's been magnetized by a magnet as described the discolored areas will appear blotchy.

In short, if you have some electronics skills, get in there with your soldering iron and touch up the connections to the de-gaussing coil. If not, find someone who does.

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2 Answers

Blotchy picture


I get this too with my Samsung. Are you watching HD content or standard (cable, satellite) tv? If it's the latter, that's why. The lack of quality really shows on analog signals. The shows that I Tivo look horrible a lot of times. Another thing is the connection to the television. If you are using standard RCA connectors, try switching to either component or HDMI.

Hope this helps.

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1 Answer

Red blotchy picture


try an AV memory reset in the tv menu. each input has different settings for picture options

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