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Official LaserVue Owners thread - Page 86

post #2551 of 2625
Quote:
Originally Posted by EHSTEINERT View Post

Mits donated a laser assembly for my A91 that went dim on me. I still have to pay labor, but the part is worth about $2200.
That's what I like about Mitsubishi. They see the "big picture" when it comes to customer relationships. At least until they run out of parts....
Edited by RU Geekman - 11/22/13 at 11:44am
post #2552 of 2625
I've been a happy user of the L65-A90 model for several years but it's developed an annoying fault recently. It no longer remembers my video settings when I turn the unit off. Each time I power it on, the settings appears to be reset to "factory defaults". (These are the video settings, not everything else in the menus, such as input names, etc.) Is there something I can try to rectify this myself? Does Mitsu still offer service for this model? Thanks in advance for the recommendations!
post #2553 of 2625
Quote:
Originally Posted by Pixiu View Post

Anyone had a pixel go out on their laservue? Looks like I have one pixel out right in the center of the screen. Fixable? Will reseting the TV possibly do it? Guessing this is an "I am screwed scenario" as the TV is 3 years old and the problem is not fixable. While this sucks it kind of sucks worse that I really do not see any great options out there in terms of a 75" set that puts out the colors of this set. I would at least hope the new Samsung 75's and Sharp 80's have as good as picture quality but just have fallen in love with those great colors especially the reds and greens. Any thoughts appreciated.

I bought my Laservue L75-A91 for $5000 on May 31, 2010. It started having problem pixel white/black dots in April 2013. By mid June 2013 it had hundreds of black & white dots after a total of 9896 hours of run time. I pleaded with Mitsubishi for help but to no avail other than their offer to buy it back for $1000.

I fixed it myself for less than $200 and put together a detailed AVS Forum thread with lots of pictures and arrows to help others to do the same. The Mitsubishi Laservue DLP chip replacement repair is not as hard to do as you may think.

Because I've never repaired a TV before, it took me 4 hours to get to the defective DLP chip, and 2 hours to reassemble the TV.

My Laservue is back to its beautiful self again. I may buy a spare DLP chip to have on hand because this Laservue failure mode is well worth fixing.

Here's the AVS Forum repair thread I created:

http://www.avsforum.com/t/1475141/how-to-replace-the-laservue-l75-a91-ti-1910-6143w-chip

If my instructions are inadequate, please leave a message on that thread and I'll update it. If you like my repair thread, please say so in a thread reply & give it a thumbs up too.

Best regards,
Edited by Antiepa - 6/17/13 at 4:41pm
post #2554 of 2625
Quote:
Originally Posted by gunn234 View Post

Has anyone figured out which DLP chip the Laservue uses so that we may find replacements on ebay for us DIYers.

http://www.youtube.com/watch?v=eyAykjZ3zs4

Kinda thinking of modifying the heatsink to liquid cooling so dust blockage and heat transfer are not an issue... (sounds like a lot of trouble but I would like to prolong my investment)

Also, is there an obtainable service manual with the breakdown of all servicable parts and part numbers?


The answers to your questions are in the following AVS Thread I created:

http://www.avsforum.com/t/1475141/how-to-replace-the-laservue-l75-a91-ti-1910-6143w-chip

If my instructions are inadequate, please leave a message on that thread and I'll update it. If you like my repair thread, please say so in a thread reply & give it a thumbs up too.

Best regards
post #2555 of 2625
What is considered acceptable overscan on these sets? I know some people reported as low a 3%. I would think more than 5% is a problem. I just got mine back from a repair and it is at 10% on the top and bottom, 7% on the sides..
post #2556 of 2625
I dunno. I've never seen the top/bottom black borders for 1.85:1 movies. I think when I was adjusting the H-height I recall it being around 7% or less. It still seems pretty excessive.

Actually, what bothers me is in 4x3 mode it artificially crops the 'overscan' area on the L/R more aggressively than the true overscan area in 16x9. I wish I knew a fix for that.
post #2557 of 2625
Forgot this update. The huge laser assembly was installed and the TV now works perfectly. This was not just some little module. It was the lasers mounted on a circuit board, with frame heat exchanger, and the two fans. The whole thing was at least 18" tall.

I installed high-flow filter material on the outside of all air inlet areas of the main cover. My original heat exchanger was completely covered by a white blanket of dust, even though I kept the outside of the TV clean, per owner manual.
post #2558 of 2625
I am having the dimness/color pulsing issue with my l75a91 and have been going through hell with mitsubishi for a month and a half, they refuse to even send anyone out to look at it and they claim that its the light engine and they don't have that in stock so there's nothing they can do about it. I tried explaining to them that its the actual laser light source not the light engine but, they won't even listen and say the only thing they can do is buy it back for 1500, but I just want to get it fixed and was wondering if anyone has any pointers about how to get through to them cause it seems they have been telling people this for months, but if you're persistent enough they magically find the parts somewhere as many people on here seem to have gotten theirs fixed fairly recently. Any help would be greatly appreciated as me and my wife truly love this tv and really don't want to just accept what they are offering then have to pay a $3000 difference to get a new one from Walts tv.
post #2559 of 2625
Quote:
Originally Posted by Chrisl75 View Post

I am having the dimness/color pulsing issue with my l75a91 and have been going through hell with mitsubishi for a month and a half, they refuse to even send anyone out to look at it and they claim that its the light engine and they don't have that in stock so there's nothing they can do about it. I tried explaining to them that its the actual laser light source not the light engine but, they won't even listen and say the only thing they can do is buy it back for 1500, but I just want to get it fixed and was wondering if anyone has any pointers about how to get through to them cause it seems they have been telling people this for months, but if you're persistent enough they magically find the parts somewhere as many people on here seem to have gotten theirs fixed fairly recently. Any help would be greatly appreciated as me and my wife truly love this tv and really don't want to just accept what they are offering then have to pay a $3000 difference to get a new one from Walts tv.
I'm having laser engine troubles too. Mine died awhile ago, and the tv repair guy from Mits told me that the laser light engine is no longer made after he tried to order the replacement. So, I called back Mits customer service, and they told me they will try to find one on their end, but if it's not available other options will be offered. Whatever that suppose to mean. I really don't want to lose this tv, because I have not seen any current LCD, LED LCD, or plasma not including 4k that can surpass the Laservue picture quality plus I spent a lot of my hard earned money on this 135 lbs. paperweight. By law Mits is required to provide parts for their tvs' for 7 years, and I don't know why they are jumping ship now. I hope there is a new class action lawsuit for all the Laservue owners that got burned from Mits.mad.gif
post #2560 of 2625
Not that it makes a difference, but whatever this light engine issue is, it seems to largely be the A91s.
I'm wondering if there is a different engine in each model, the A91's got a flawed design and Mits burned through their replacement parts faster than they expected.
post #2561 of 2625
Quote:
Originally Posted by DoctorM View Post

Not that it makes a difference, but whatever this light engine issue is, it seems to largely be the A91s.
I'm wondering if there is a different engine in each model, the A91's got a flawed design and Mits burned through their replacement parts faster than they expected.
Actually, the A91s' & A94s' laser light engine looks very identical. I don't know about the A96. Before my laser light engine died I upgraded the cooling on my DMD chip in the optical engine. On closer examination of the light engine itself. I noticed it has a very poor cooling system. The copper heat pipes that are used to transfer the heat from the light engine to the aluminum fins are tooooooo small.eek.gif That's terrible especially when it's a class 4 laser being used. It's like having a race car with cheap all seasonal tires.
post #2562 of 2625
Which might mean the 1+ year old A94's don't have replacement parts? Mits is just looking to get sued then.

Maybe the cooling system is what makes the A96 heavier.
post #2563 of 2625
Quote:
Originally Posted by DoctorM View Post

Which might mean the 1+ year old A94's don't have replacement parts? Mits is just looking to get sued then.
Don't they have a choice of making replacement parts available or giving the customer a (pro-rated) refund on the product? In this case, it may be less expensive for them to buy the customers out instead of manufacturing and stocking replacement parts once supplies run out. The big problem with this is that a pro-rated refund won't give the customer enough money to replace the TV with something of similar size, even if we ignore the question of how good the quality of the replacement is.
post #2564 of 2625
Does anyone have an email address for Mitsubishi support in regards to their laservue TV's? I am having troubles out of a L75-A91 and would like to email them but can not find their email address for the life of me..

thanks
post #2565 of 2625
Although you'll get the run around on the telephone, I never felt there was much by way of email support outside of an automated response and then someone later telling you to call their "priority support". (Quotes are meant to convey that priority is a joke.)
post #2566 of 2625
Quote:
Originally Posted by DoctorM View Post

Although you'll get the run around on the telephone, I never felt there was much by way of email support outside of an automated response and then someone later telling you to call their "priority support". (Quotes are meant to convey that priority is a joke.)
I received a larger, newer model replacement DLP TV a full year out of warranty using email. I guess it depends on who you email.
Edited by Augerhandle - 9/12/13 at 3:26am
post #2567 of 2625
Important Info on L75-A91

Bought TV from Pauls TV in Sept 2011
Also bought extended warranty - lucky me.

Sept 2013 TV has the dreaded "deal pixel" or white spot.
Called Extended Warranty and they sent someone over.
Technican inspects TV and determines needs DMD chip - Tech bring a chip with him but after opening TV, he consults Mitsubishi Tech and they advise he needs another CHIP - a different one.
Technican calls 2 days later and advices Mitsu will send a diff DMD chip.
Technican shows up today and has the same CHIP that Mitsu apparently sent- same chip referenced in link http://www.avsforum.com/t/1475141/how-to-replace-the-laservue-l75-a91-ti-1910-6143w-chip
TV is all good now - no more dead pixels.

Interestingly enough I did open a case with MEVSA as well.
They said they have no parts available for the L75-A91 and the best they could do is schedule to pick up the TV and drop of a check for USD 1500!!!!!
This is crazy - What is Mitsubishi thinking?? Paid 5000+ for TV and within 2 years it dies and Mitsu won't even repair the TV or even provide proper replacement parts!


If in SOCAL and need help with LaserVue L75-A91, contact VIDEO TECHNICS, ask for Rommel. 714-974-1771 as they came through and fixed my TV.
post #2568 of 2625
My L75-A94 finally got fixed after 4 months of fighting with Mitsubishi, but now the funny thing is that when I turn the tv on, and go into the menu screen it now displays firmware 013.04 L75-A96. WTF, in a good way!?!? So, to verify this I checked to see if I had the A96 feature which is 3D depth adjustment, and "BOOM" there it is. WTF, in a good way!?!? Now I'm excited that my A94 just got transformed into the A96 so that means the A96 replacement parts are backwards compatible with the A94.
post #2569 of 2625
There is some difference between the two sets, because the A96 definitely weighs more.
That said, I've had both and I couldn't understand why the A96 firmware wasn't provided to A94 users... except perhaps they didn't want to remove a feature (the channel guide) and get angry phone calls.
post #2570 of 2625
My L75-A94 had a minor issue that I made the "mistake" of having repaired earlier this year. My set was returned to me by the warranty servicer, with a grosser issue: 10% overscan. The overscan chops off part of blu-ray menus and cable guides. The servicer finally conceded that it needed to be taken care of. By that time Mitsubishi no longer carried the part that was needed to correct the overscan issue: p/n 870B010002

Mitsubishi has offered to buy back my L75-A94.

In the meantime, I found a great deal on an L75-A94 at a local B&M. This other set is a little dimmer than the original.

So I have a couple of questions:

1. Any ideas how the overscan can be corrected? The manual geometry alignment function won't take care of it.

2. Does anyone know which part needs to be replaced to restore the light output to maximum on a set that seems dimmer than when new?

3. Given the lack of part availability for Laservue, can you recommend a replacement TV? My critieria are as follows:

a. Same size or larger
b. Same PQ or better
c. 3D performance should be as good or better
d. Cost less than 6K

As I am biased towards the Laservue qualities, I would prefer back only from those who have experience living with a LV model.

Thanks in advance for any feedback, and may your LV live a long life!
Jason
post #2571 of 2625
I've only seen LV models in stores, so I haven't lived with one for a period of time to get to truly appreciate how they differ from the other DLP RPTV's (I've owned a WD-65835 and now a WD-82838). However, if they're already out of some parts needed to repair the A94's, and the other one you're looking at appears to have a dimmer picture than the one you currently have, I would let Mitsubishi buy it back and go down 1 of 2 paths:

1) Buy something relatively inexpensive to hold you over until something that better fits your requirements comes along.

or

2) Figure out what is currently available that best meets your requirements and buy that.

But if you either get the overscan fixed on your current one or purchase the other one that apparently already has some problem, just ask yourself if Mitsubishi is going to offer to buy the TV back (I assume for what you paid for it) 6 months or a year from now? This might be your only chance to get that offer.
post #2572 of 2625
Once you are talking 75 or larger there are only a few TVs out there. There's Sharp and then... you said under 6k?.... there's Sharp.
I don't think the PQ is in the same league though.

No Elite this year, so the Sharp LC-80LE857 is next and I don't think there are reviews yet.
Sony's has a 4k over 70 inches but that's a bit more than $6000.

Did I miss anything?

Out of curiosity, what did Mits offer you for the buy back?
I believe they are saying $1000 for tha A91's.

But for them not to have parts this early sounds vaguely illegal. I'm just waiting for the class action lawsuit...
Edited by DoctorM - 10/10/13 at 10:53am
post #2573 of 2625
Quote:
Originally Posted by DoctorM View Post

Once you are talking 75 or larger there are only a few TVs out there. There's Sharp and then... you said under 6k?.... there's Sharp.
I don't think the PQ is in the same league though.

No Elite this year, so the Sharp LC-80LE857 is next and I don't think there are reviews yet.
Sony's has a 4k over 70 inches but that's a bit more than $6000.

Did I miss anything?
My recommendation (or what I would do if I were in the same situation) would probably be to purchase Panasonic's least expensive 65" plasma and live with it until better options in the 75"+ sizes come along.
Quote:
But for them not to have parts this early sounds vaguely illegal. I'm just waiting for the class action lawsuit...
If they buy the product back at full purchase price, I wouldn't see anything illegal there. If they're offering something like $1000 for the buy back then that's another matter.
post #2574 of 2625
At 65" you're probably better off with the Panny VT series. They make better, but I would bet without a meter you'd never see the difference. Going for a lower model you will start sacrificing some stuff.

I just don't know if anyone could go from the LaserVue to the dimness of a plasma.
I'm not a big fan of Cnet (or their fanaticism about plasmas and bezels over a good image), but you should take a look at this list. It isn't too far out of whack.
http://reviews.cnet.com/best-64-inches-and-above-tvs/

Things are kinda bleak right now for large TVs unless you want to go front projections.

Speaking of, what ever became of LG's Hecto? http://reviews.cnet.com/home-theater-projectors/lg-hecto-laser-projector/4505-7858_7-35558335.html
post #2575 of 2625
How have extended warranties been handled (for example, those sold by RUGeekman) since Laservue's that cannot be repaired?
post #2576 of 2625
Quote:
Originally Posted by DoctorM View Post

At 65" you're probably better off with the Panny VT series. They make better, but I would bet without a meter you'd never see the difference. Going for a lower model you will start sacrificing some stuff.

I just don't know if anyone could go from the LaserVue to the dimness of a plasma.
The point of my suggestion would be to go with something that has a relatively decent picture but is "cheap" to keep as much of the buy back money as possible to put towards a future purchase. So I would go with the ST series or even below that just to have something to get by for the interim. If my WD-82838 were to die tomorrow and couldn't be repaired, that's probably what I would do to hold me over for a year or so.
post #2577 of 2625
Quote:
Originally Posted by GCAVS View Post

How have extended warranties been handled (for example, those sold by RUGeekman) since Laservue's that cannot be repaired?

If you are going to purchase an extended warranty, Ru Geekman is the way to go. Ive been dealing with him for a few weeks now and so far his knowledge and eagerness to help has been 2nd to none. He will definitely go to bat for you and doesn't care to make waves to take care of his customers. I just ordered a UN75F7100 from him and waiting for it to arrive but as it stands now ALL my electronic purchases will be through him...
post #2578 of 2625
I have a Mistsubishi L75-A96 laservue that was made in Aug 2012 and the optical engine was just diagnosed as being bad. The thing that has me furious is there are No parts to replace it! Doesn't mitsubishi have to have parts on hand for so many years by law and has anyone else run into this problem or know of a class action law suit against them for this? Sorry if this has already been posted. I'm new to this site.
post #2579 of 2625
Quote:
Originally Posted by twinkletoes2035 View Post

I have a Mistsubishi L75-A96 laservue that was made in Aug 2012 and the optical engine was just diagnosed as being bad. The thing that has me furious is there are No parts to replace it! Doesn't mitsubishi have to have parts on hand for so many years by law and has anyone else run into this problem or know of a class action law suit against them for this? Sorry if this has already been posted. I'm new to this site.
If parts aren't available, they're probably required to buy the TV back, but there are always going to be cases where enough parts aren't available.
post #2580 of 2625
Quote:
Originally Posted by twinkletoes2035 View Post

I have a Mistsubishi L75-A96 laservue that was made in Aug 2012 and the optical engine was just diagnosed as being bad. The thing that has me furious is there are No parts to replace it! Doesn't mitsubishi have to have parts on hand for so many years by law and has anyone else run into this problem or know of a class action law suit against them for this? Sorry if this has already been posted. I'm new to this site.

I am allowing them to buy back my l75-a94. My set had the same part failure diagnosis.

Just curious, what is the symptom on your l75-a96?
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