Mitsubishi 2007 (and possibility '06 & '08) lens cleaning procedure. No more halo's. - Page 12

New bulb, solved all problems. It is like new and can't be happier.

Yes. I do know of the break-in period, but I am still happy that the bulb has lasted longer than 40 hours, lol. I have about 200 hours on this one and just in case I have the old bulb.

anyone have a pic of what the halo affect looks like?

Well, it took a while to build up the guts to do this myself, but I did it. All I can say is WOW!! Took it right back to the way it looked when my wife and I bought it 6 years ago. I too would like to know why Mits won't acknowledge that this is something they're ultimately responsible for as it's just not something that should happen to a set this expensive unless it's a design flaw. Mine was also kinda caked on, and took a bit to remove. I'll post a pic of mine as well. Also, I counted more than 17 screws. 19 I think! Otherwise, excellent job of illustrating what needs to be done. Followed it to the letter. Took about an hour. Thank you, thank you, thank you!!

Is there a way you can tell this from just looking at the iris externally? I have to take the light engine off to replace the dmd chip with a TV that I bought off craigslist and would rather do it while I have it apart instead of tearing it apart again...

Thank you!

1 TV.. Wd65733.. Doing the dmd chip don't know what you are saying "same model".. It's not a replacement engine, I just have to take it out to do the chip and figured I would do the lens cleaning..

Are the mechanical alignment screws the same?

I have the service manual for it, I will check while waiting an answer from you v.b.

Thank you!
Edited by AnthonyB - 8/26/12 at 12:27pm

I'd sure go ahead and clean it! It makes such a huge difference. I cannot imagine that it wouldn't help.

fred

Unfortunately, the screws were glued in and ended up stripping them to try to get them out.. If blooming ever becomes a problem, I will just find a new way to get them out or buy a new le.

I've got a Mitsubishi 65C9. Does anyone have any info on how to take apart a 2009 or newer DLP for a good cleaning? My first lamp has over 5500 hours on it and I've got a new one ready to put in it. Before I put the new one in I thought it would be good to get all the dust I could out of the TV so the new lamp doesn't get dust in it like my older lamp does. What ever that spinny wheel is had dust balls hanging off of it the first time I opened it up. I've cleaned it up some but it's hard to reach and I'm afraid to disassemble it any further since I don't really know what I'm doing.

Thanks, I found the service manual and downloaded it last night. It was really easy to understand and I was able to take everything out of the back of the TV and blow it out and wipe it down. I have had the TV for around 2 years and we have a wood stove so there was quite a bit of dust in it. I was worried about dust getting in something important but it seems like everything is sealed except for the actual lamp.

I moved the mirror on this part. What adjusts it? The small reflecting mirror.


Capture.JPG 85k .JPG file

Sorry for the delay in reply.

I moved it when I cleaned it. The mirror inside that housing, at least mine, was very foggy. When I polished it I found out it rests on a hinge like frame. Hard to describe but it moves like on an arc kind of assembly. When I polished the high side, it moved. Gently pushed it back but it was just a gross guess as to placement.

I can align it with my HVPOS, etc., adjustments but I've had to really move that sucker. Used to live at -1 and picture was perfectly aligned. Now I'm at -32.

Has to be some way to align it, some adjustment.

I'll not be buying another light engine. Any money I spend now is going towards a new flat panel. Time to move on to new technology.

The air flow through these Mits sooner or later brings enough dust and dirt that they have to be cleaned, lamp issues, etc.

Price for very nice 60 inch flat panels very doable these days.
Edited by jsmiddleton4 - 11/30/12 at 8:45pm

I had halos, flicker and incorrect colors. Followed the light engine cleaning procedure found at this site and now the set looks new again.

My light engine did not appear dirty at first glance but everything had a white haze on it including the color wheel and color wheel sensor.

I used plain water, q-tips and an eye glasses polishing cloth.

Thank you very much forum members!!!!

WD-73732 with 12000+ hours (2 lamps so far).

Out of LCD, DLP, and plasma, DLP is the NEWEST technology.

The only thing new about plasma and LCD is the price. They are no longer $10,000 for a 40 inch screen.

LCD was discovered 1888
LCD display invented 1964
Plasma display invented 1964
LED TV (true LED TV)1977
DLP was invented 1987
First DLP TV 2001
Edited by Augerhandle - 4/29/13 at 12:09pm

A MILLION thanks to videobruce for his instructions and photos!

My 2007 57732 had its light engine replaced in 2009 due to the hazing issue, under extended warranty. By now it had gotten very bad again. We looked at a new Plasma from Panasonic, but with them exiting the market, I decided to try and clean the lens. Worst case, we buy a new TV. Best case, well that's what happened.

I used Zeiss lens cleaning cloths and a glass polishing cloth to finish off. Avoiding the iris was not hard. The tube came out super easy. Adjusting the engine to be level took the most time of any one step.

I took photos with my iPhone at every step, and in some places, video. I viewed the instructions on my iPad, propped up against the back of the TV.

Here are stills I took from the video, one of the hazed lens, one cleaned. I also have droplets on my lens, either an oil or condensation. It came off fairly easily so I'm leaning towards condensation.

Hazed lens:


Cleaned lens:

Just as with DLPs, the LCDers have been saying for years that plasma is finished.  Repeat it often enough...

Thanks! I actually pulled them from the iPhone video. I forgot to take photos I was too excited. And yes, send them your bill. The light engine they replaced under warranty was $900.
.
http://www.theverge.com/2013/4/10/4210556/panasonic-ceases-plasma-panel-development-will-continue-to-make-tvs

I should have said ceased R&D, not exiting the market. This might mean that the top end sets will come down in a year or so, so when this DLP gives up the ghost, a nice Plasma may be in order.

Lastly, did you notice in my photos a little rust in the screw hole? I wonder if that was due to the condensation, or the fact that we used a humidifier in the living room several winters ago.
Edited by sriggins - 5/7/13 at 1:05pm

Looks like some of the haze is already returning. I have a halo around the directv logo, or it is meant to be that way, hmm