The Defective Mitsubishi DLP TV Owners Thread - Page 9 - AVS Forum
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post #241 of 259 Old 10-13-2014, 06:23 PM
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Hi guys, trying to problem solve an issue I've recently developed on my WD65-733.

I bought this TV in Fall of 2007 and just had to replace the bulb for the first time in September of this year. I replaced with a Phillips that advertised itself as an OEM bulb.

About two weeks ago I had to pull the bulb because I bug got in there and was flying around in front of the light. Ever since reseating the bulb on a screen that should be fully black, I have grey blotching. This does not occur on top of any other color, and is only seen on what should be fully black screens or black backgrounds with text on top of the black like with some movie menus or video games.

Any thoughts on what is causing this?
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post #242 of 259 Old 10-26-2014, 10:20 PM
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post #243 of 259 Old 10-27-2014, 01:40 AM
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Originally Posted by Roofus View Post
Ever since reseating the bulb on a screen that should be fully black, I have grey blotching. This does not occur on top of any other color, and is only seen on what should be fully black screens or black backgrounds with text on top of the black like with some movie menus or video games.

Any thoughts on what is causing this?
Something, dust or whatever, got on the bulb reflector or somewhere in the optical path that is reflecting light where it is not supposed to be and that light ends up on the screen to cause the blotch noticeable during dark scenes.
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post #244 of 259 Old 10-27-2014, 10:51 PM
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Originally Posted by collin View Post
Something, dust or whatever, got on the bulb reflector or somewhere in the optical path that is reflecting light where it is not supposed to be and that light ends up on the screen to cause the blotch noticeable during dark scenes.
Is it fine to clean the bulb with some windex?
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post #245 of 259 Old 11-03-2014, 09:41 AM
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Hey guys,

Can a failing DLP chip cause graininess?


My WD73-737 has developed a few stuck mirrors, got new chip on the way, but I've also noticed that solid black screens have gotten super grainy and less black. Overall the picture doesn't seem quite right these days.

The other day when I turned it on all I saw was this weird green hue on the screen, no picture no menus. I shut it off and came back later to check and it worked fine again.

Is there something else that could be wrong with my tv? I'm still on the original lamp since 2009.



Thanks
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post #246 of 259 Old 11-05-2014, 02:55 PM
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Do you guys think getting a new DLP Chip will fix the white clouding effect i am getting? You can only really see it when you are watching a dark scene. Thanks

Attachment 350690

BASEMENT HOME THEATER - EPSON 5030UB 2D/3D PROJECTOR W/ 100" ELITE SCREEN - RECEIVER - HARMON KARDON 1710 7.2
FRONT SPEAKERS - INFINITY PRIMUS P363 CENTER SPEAKER INFINITY PRIMUS PC351 - SIDES AND REARS POLK AUDIO 30'S + 40'S SUBWOOFERS PREMIER ACOUSTIC PA-120 650 WATT TITANIUM + POLK AUDIO PSW110
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post #247 of 259 Old 11-09-2014, 03:34 PM
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Originally Posted by Lt.Aldo.Raine View Post
Do you guys think getting a new DLP Chip will fix the white clouding effect i am getting? You can only really see it when you are watching a dark scene. Thanks

Attachment 350690
You can confirm that the issue is the same in a completely dark room?
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post #248 of 259 Old 11-09-2014, 05:38 PM
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Originally Posted by Lt.Aldo.Raine View Post
Do you guys think getting a new DLP Chip will fix the white clouding effect i am getting? You can only really see it when you are watching a dark scene. Thanks

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I wouldn't replace the chip unless you're getting the stuck pixels issue. What model TV is it? More than likely, it's caused by dust in the optical path, but some models actually accumulate a haze on one of the inner lenses. Mitsubishi 2007 (and possibility '06 & '08) lens cleaning procedure. No more halo's.

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post #249 of 259 Old 11-10-2014, 06:17 PM
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Ok, I cleaned my bulb. I had also noticed that some residue from air cleaner got onto the little glass screen between the color wheel and the bulb. I pulled that and cleaned it and carefully reinstalled by the edges.

It appears that was not the issue. I have developed about 7 white spots and a hazy gray over the whole screen since my last post. It is like you're looking at the picture through a screen door now.

I've read that there are various white spot issues. I seem to have two. Some are permanent white dots that are always present. 1 or 2 are the "black hole" variety that are white dots until something black appears behind it.

Does this sound like the DLP chip? If so, someone mentioned that Mitsubishi replaced their chip for free? Was the TV under warranty or recall for them to do this? My set is about 7 years old. I will call them, but some insider info would be helpful.
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post #250 of 259 Old 11-11-2014, 09:15 AM
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Originally Posted by Roofus View Post
Ok, I cleaned my bulb. I had also noticed that some residue from air cleaner got onto the little glass screen between the color wheel and the bulb. I pulled that and cleaned it and carefully reinstalled by the edges.

It appears that was not the issue. I have developed about 7 white spots and a hazy gray over the whole screen since my last post. It is like you're looking at the picture through a screen door now.

I've read that there are various white spot issues. I seem to have two. Some are permanent white dots that are always present. 1 or 2 are the "black hole" variety that are white dots until something black appears behind it.

Does this sound like the DLP chip? If so, someone mentioned that Mitsubishi replaced their chip for free? Was the TV under warranty or recall for them to do this? My set is about 7 years old. I will call them, but some insider info would be helpful.
Call them. They replaced my chip for free. TV was 5 years old.

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post #251 of 259 Old 11-12-2014, 09:21 PM
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Call them. They replaced my chip for free. TV was 5 years old.
Were you charged for installation? All my local tv guys charge about $200 for install and Mitsu said they'd send me the chip for free. But I can buy the chip for $200 and install myself, so it seems tit for tat if I can't get the service call charge free as well.
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post #252 of 259 Old 11-12-2014, 11:40 PM
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Were you charged for installation? All my local tv guys charge about $200 for install and Mitsu said they'd send me the chip for free. But I can buy the chip for $200 and install myself, so it seems tit for tat if I can't get the service call charge free as well.


They paid for everything, including installation. They first tried to charge $200 for the install, and I POLITELY insisted that it was a known defect, and that TI was supplying the chip to them for free, so they should replace it for free. The CSR responded with an offer to throw in a free lamp, which I refused, saying I just bought a lamp. After some more POLITE haggling, they agreed to replace it free of charge if I signed a Confidential Settlement and Release....

If they install it, they are responsible for any issues that may or may not arise, so I would definitely recommend letting them install it, no matter what you negotiate.

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post #253 of 259 Old 11-14-2014, 10:00 AM
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Originally Posted by Augerhandle View Post
They paid for everything, including installation. They first tried to charge $200 for the install, and I POLITELY insisted that it was a known defect, and that TI was supplying the chip to them for free, so they should replace it for free. The CSR responded with an offer to throw in a free lamp, which I refused, saying I just bought a lamp. After some more POLITE haggling, they agreed to replace it free of charge if I signed a Confidential Settlement and Release....

If they install it, they are responsible for any issues that may or may not arise, so I would definitely recommend letting them install it, no matter what you negotiate.

I have a Mitsu WD 60737 that I got from Mitsu as replacement to a previous model dlp I had. I've had it for about four years now and it has started with the black spots and now a bright white spot. From what I've read, it's the DMD chip and was wondering how you went about getting Mitsu to replace it free of charge. Did you simply call them and say this is what my tv is doing and they took responsibility and offered up the chip and than the bargaining ensued? Thanks for any advice you can provide.
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post #254 of 259 Old 11-14-2014, 03:30 PM
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I have a Mitsu WD 60737 that I got from Mitsu as replacement to a previous model dlp I had. I've had it for about four years now and it has started with the black spots and now a bright white spot. From what I've read, it's the DMD chip and was wondering how you went about getting Mitsu to replace it free of charge. Did you simply call them and say this is what my tv is doing and they took responsibility and offered up the chip and than the bargaining ensued? Thanks for any advice you can provide.

My TV was also a warranty replacement for a previous model. They are aware of the issue. You have to let them know that you are aware as well, by telling them that it is a known defect, etc. and POLITELY insisting that they come through for you. Expect a long, drawn out negotiation. They offered to fix it for the $200 labor and I insisted that they were responsible, and should cover all of it. They then offered to fix it for the $200 labor and throw in a new lamp, and I told them I didn't need a lamp, just the chip replaced. Some take the lamp offer, which is also a good deal ($200 -144.60 = $55.40 net for the repair).

All in all, I can't say enough about Mitsubishi standing behind their product. Their out-sourced customer service department can be exasperating, though.

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Last edited by Augerhandle; 11-14-2014 at 03:33 PM.
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post #255 of 259 Old 11-14-2014, 04:09 PM
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Originally Posted by Augerhandle View Post
They paid for everything, including installation. They first tried to charge $200 for the install, and I POLITELY insisted that it was a known defect, and that TI was supplying the chip to them for free, so they should replace it for free. The CSR responded with an offer to throw in a free lamp, which I refused, saying I just bought a lamp. After some more POLITE haggling, they agreed to replace it free of charge if I signed a Confidential Settlement and Release....

If they install it, they are responsible for any issues that may or may not arise, so I would definitely recommend letting them install it, no matter what you negotiate.
Did they require you to have a technician come out to your house first in order to "inspect the dots"? This is the push back I'm currently getting. I talked to a tech on Wed who told me it was without a doubt the DLP chip. But customer service is telling me that because I'm telling them I have white, gray, and black dots that they can't verify the problem and I need a technician to come to my house to physically assess the problem prior to them determining if they can provide me assistance (i.e. a free replacement part).
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post #256 of 259 Old 11-14-2014, 06:15 PM
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Originally Posted by Roofus View Post
Did they require you to have a technician come out to your house first in order to "inspect the dots"? This is the push back I'm currently getting. I talked to a tech on Wed who told me it was without a doubt the DLP chip. But customer service is telling me that because I'm telling them I have white, gray, and black dots that they can't verify the problem and I need a technician to come to my house to physically assess the problem prior to them determining if they can provide me assistance (i.e. a free replacement part).
Tell them the dots are just black and white, and pixel sizes diamonds. Barring that, tell them they must agree to pay the tech, assuming that he/she determines that the chip is bad.

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post #257 of 259 Old 11-17-2014, 11:06 AM
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I think a tv should last a little longer than this!
Agreed. I'm giving serious thought to writing off my losses and just buying the Samsung plasma.
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post #258 of 259 Old 11-17-2014, 03:03 PM
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Originally Posted by sujlemariecj View Post
I think a tv should last a little longer than this!
Well, YEAH. That's why they are repairing the problem, even though the TV is out of warranty. The chips are supposed to last way longer, but Texas Instruments had produced a bad run of them. Samsung DLPs are having the exact same issue, but try to get a Samsung fixed for free...

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post #259 of 259 Unread Today, 10:40 AM
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Hello,

I have a WD-60C8 and currently have an issue that I can't find anyone having the same issue. It had the white dots problem and a screen shaking horizontally problem. I got Mitsubishi to send a dlp chip which fixed the white dots problem, but the other problems persist. After the TV is on for a little while it starts shaking horizontally and the picture goes off screen then comes back. Then eventually the tv turns off without any error codes.I don't hear any noise coming out of it like its a color wheel bearing going bad. I have a video that I'm going to upload as soon as I get a chance.
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