Mitsubishi 2007 (and possibility '06 & '08) lens cleaning procedure. No more halo's. - Page 2

The lamp on my 73-735 has 2 settings. Standard and Bright.

Anyone have before and after pics of your set's picture?

Anyone in the Bay Area know of a good authorized repair center that will do this and that has fixed this issues? I have had "authorized" repair service before on previous hdtv's and have been told what I called for is "normal" (blue tube was out and everything was green). My worry is that they will not recongnize this as a problem or not know who how to fix it. My father in-law does not really see it even though it is REALLY BAD, and I know he will see the difference once it is fixed.

I can take note this weekend and get back with you on Monday.

The difference is barely noticeable to the naked eye and I doubt a camera can show the difference, but I will take "before and after" pictures this weekend and post them on Monday.

Yes, the light output from the back is dimmer when the lamp is set to standard vs bright. I did take some before / after pictures. But like I mention, it is not noticeable via the pictures. It is very noticeable in person. I will post them anyway, and also post a screen shot of the menu where you can make the bulb brightness change.

I assume you mean the difference in "Fast Power On" and "Low Power"? With fast power on, it reacts as stated, the TV powers on relatively quick, but consumes more electricity. With "Low Power", because it is conserving electricity, it takes quite a bit more time to power on, but the draw back is that if you unplug the set, loose power or have the set turned off for longer then 48 hours, all of your settings will be reset to default.

I want to thank everyone responsible for this thread. Not only did you guys save me $600.00 but my Mits WD65831 looks as good as it did the day I bought it and why I bought it. Thank you, Thank you, Thank you.

Awesome tutorial, thank you so much. My (stupid) question- I bought one of these sets used from a wife's co worker, and I LOVE it. I haven't noticed any blurriness or anything of the like. Is this a "preventative" thing, or should I wait until it happens to attempt? thanks!

I would wait and do this only if you were experiencing a lack of clearness in your picture. I did this cleaning (thanks videobruce) on my dad's 57731 and it really helped his picture.

No, your settings don't get reset to default. It takes longer to power on, but your settings don't reset. I waited a week for a new bulb once. My set was unplugged, and my settings didn't reset.

Hey,Bruce!

It's been a long while since I had a Mits(65732) and the blooming.It was replaced by the extended warranty company(after a WAR!).I got a Samsung HL 67A750 in exchange.It's a nicer TV,but has been discontinued and has it's own set of problems(at least no bulbs!).

The EW company let me keep the Mits,which I promptly cleaned,got a superb picture and eventually sold.Kudos on this great tutorial.I had contributed a few pics during the earlier thread,but nothing like this!!!!Great.

A question for 2008/2009 Mits DLP owners.......Have the newer Mits dlps had the "blooming"....aka "halo" problem?

Fred

Bruce, I usually agree with you. However, calling the DLPs power hogs is just plain out there. RP DLPs use waaaay less power than LCD's or plasmas.

Am I correct in reading you prefer the Sammy LED over the mits DLP? My 65831, at least for me is still pretty strong and I would prefer it over the LED Sammy which my friend has. After two halo cleaning jobs, it seems the problem may be gone-knock on wood!

I absolutely prefer the Samsung LED driven DLP over the Mits(I owned a Mits WD-65732 for over 2 years).It is dead quiet(none of that awful fan noise).The white letters on a black background is easily better.It's has better image quality on both SD and especially HD.It's sharper and more vibrant without having "day-glo" colors.I honestly think it's(the LED version only) the best RP DLP ever made......and I have owned Sony,Hitachi,Mits,and now Samsung(still have a a Sony as a 2nd TV).

My wife comments frequently on how much better it is.We are comparing 65" to 67"....so there is little difference in size(should favor the smaller Mits anyway).

Here's the thing.In my mind,until you live with a TV a while,it's hard to judge the differences.I'm convinced of that.This TV looks NOTHING like it did on a brief viewing in the showroom(same when I got the Mits).

Let's put it this way.If I could buy another NEW Samsung like the one I have,I'd get it as a back-up,since this set is discontinued.I like it that much.I realize that people tend to like the brand that they own,but I have had both.However,if my Samsung went bad,I'd go back to a 65" Mits(as that's all there is in an RP DLP) and be OK with that.

I will say that I had major questions about the Sammy LCD DLP before I bought it(actually....before I got it from the EW company).I viewed it and the Mits at HHGregg and couldn't tell much difference.It was an '09 Mits and an original HL 67A750,so that may have been an issue.The Sammy was horribly adjusted and I was able to quickly adjust the Mits(since I owned one).

But when I got the Sammy home....WOW!And I had it side-by-side with my newly cleaned(bloom-free) WD-65732.So I had the unusual ability to see both TVs in my home,one beside the other for a couple of weeks.No contest.....not even close.So I sold the Mits.I just hope the Samsung doesn't need repair,since parts availabilty is a question mark!!

Yes,there is a slightly narrower viewing angle,both vertically and to a lesser degree,horizontally.I quickly adapted to that and never notice it.My wife likes to lie in the floor to watch TV,and she doesn't complain(I'd never even consider that!).I don't even know whether this is more pronounced on the 67"(vs the 61").It's no big deal to me,especially with the better image quality.

aVOLanche....videobruce-very interesting feedback. although I am content with my 65831, I agree with the remark "until you live with a TV a while,it's hard to judge the differences". Thanks for sharing input and opinions.

My bad, you must reset the TV clock if using low power and the TV is left turned off for more then 48 hours.

I stumbled upon this thread while doing a search for WD 65831 halo. Having performed the procedure outlined above, I joined the forum expressly to thank videobruce.

When I got to the 'final' lens as shown in the photos, mine was about 1/3 covered by a nearly opaque gray crud. This stuff actually had a fairly sharp edge to it, as if a thin drop of something like yogurt had spread over the area.

It took about 1/2 hour to clean the lens thoroughly. I also cleaned the window at the end of the tube and the large lens at the top of the engine.

Upon reassembly, I noticed two effects:

1. The halo was gone.

2. I had alway run this set on the "Brilliant" setting and it always appeared a little dim even at that. After the cleaning, I had to reduce the setting to "Normal" and it is still brighter than it ever was before.

Apparently the junk on the lens was scattering so much light out of the intended path that it actually reduced the brightness of the display by a huge amount.

Using the procedure of videobruce has essentially resurrected this unit and has made it really superb display.

Thanks again videobruce!

PS -- I think the 5/8" wrench listed in the required tools should perhaps be an 8mm wrench.

Bruce -- I think 5/16" is the correct 'English' measure. Translates to 7.9mm or thereabouts.

The stuff on my lens surely could have been a lubricant. It was quite 'greasy' and with my mildest lens cleaner the stuff basically smeared around as I wiped with a Q-tip. In fact, most of the stuff was lifted 'physically' by the cotton. When I finally tried some Superior Optical cleaner, it seemed to disolve the material. A final wipe with a microfiber towel got it pristine clean.

PS -- I certainly agree about the mega corporations. Roosevelt fixed the entire banking thing in 1933. There was never a good reason to go back.