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Official LaserVue Owners thread - Page 81

post #2401 of 2625
Mitsu told me they do not make the light engine for my L65-A90, there is a guy on Ebay who will rebuild it for you, but you have to have the skills to remove the light engine, ship it to him, and then replace the rebuilt engine yourself. The research I did when mine was broken indicated that a new light engine was around $1200, but they aren't being made anymore. That's all for the L65-A90, not sure about the other models. If you are having the white dot problem call Mitsu's support line, they replaced my L65-A90 with an L75-A94 for $500. It's arriving this Tuesday.
post #2402 of 2625
I read back over the thread and saw some comments about a stutter/judder issue (studder?). Anyway, can someone describe what they are seeing with this? Curious if I'm getting it too.

Also, I wanted to ask is anyone wants to try to see another artifact they can't unsee.

I've reproduced it on an A94 and an A96 built 9 months apart. I can see it using different sources, inputs, settings, tweaks, etc. It appears as a shimmering line at the very top edge of the screen when there is an apparent camera pan up or down. (I just saw it yesterday watching the falling spaceship scene in Prometheus).

It's not there at all times, isn't strongly pronounced and doesn't always turn up unless the conditions are just right. A letterboxed source helps improve visibility of it.

I've been going back and forth with Mitsubishi over it and they claim it's overscan.
I wondered if anyone wanted to see if they can reproduce it. If it's more prevalent than just the 2 TVs I've had, maybe Mits can try to fix it in software if more people report it. It strikes me as some sort of image processing since nothing in the projection system should shift or move with a camera pan on screen. (Yes, I've tested with dejudder and deblur features on and off.)

A still of the artifact:


A video showing the artifact on my A96:
http://www.mediafire.com/?6cyecbn3f4dh09b 995kb

A 1 minute DVD of a cycling clip that can generate the artifact on my TV:
http://www.mediafire.com/?30n13fti1qiheys 43mb
post #2403 of 2625
Hey, my Laservue has began acting a little odd. I'm yet unsure if it's the TV, so I wanted to see if anyone else has noticed something similar before pulling running a few HDMI cables direct to the TV to take the receiver out of the picture. Anyway, what it appears to be doing is shifting the colors/brightness every now and then. For example, my BD player has a grey and black weave background when I'm listening to music, and I can sit there and watch the background go a little bit more green and then a little light and then back to normal. It happens randomly.... Hard to describe, but that's the best I can do.... Anyone else seen this?
post #2404 of 2625
Quote:
Originally Posted by DoctorM View Post

I read back over the thread and saw some comments about a stutter/judder issue (studder?). Anyway, can someone describe what they are seeing with this? Curious if I'm getting it too.
Also, I wanted to ask is anyone wants to try to see another artifact they can't unsee.
I've reproduced it on an A94 and an A96 built 9 months apart. I can see it using different sources, inputs, settings, tweaks, etc. It appears as a shimmering line at the very top edge of the screen when there is an apparent camera pan up or down. (I just saw it yesterday watching the falling spaceship scene in Prometheus).
It's not there at all times, isn't strongly pronounced and doesn't always turn up unless the conditions are just right. A letterboxed source helps improve visibility of it.
I've been going back and forth with Mitsubishi over it and they claim it's overscan.
I wondered if anyone wanted to see if they can reproduce it. If it's more prevalent than just the 2 TVs I've had, maybe Mits can try to fix it in software if more people report it. It strikes me as some sort of image processing since nothing in the projection system should shift or move with a camera pan on screen. (Yes, I've tested with dejudder and deblur features on and off.)
A still of the artifact:

A video showing the artifact on my A96:
http://www.mediafire.com/?6cyecbn3f4dh09b 995kb
A 1 minute DVD of a cycling clip that can generate the artifact on my TV:
http://www.mediafire.com/?30n13fti1qiheys 43mb



Yes, I got the same thing on both of my Laservues.
post #2405 of 2625
I need a little help from a calibrator or anybody knowledgeable in the area.

I paid for an ISF calibration from Best Buy a year and a half ago, right when I bought my L75-A91. He came out and couldn't figure out how to do any adjustments other than what's on the basic menu (color, brightness, etc). He said he'd look into it and call me back. Apparently Mitsubishi won't tell him anything at all. I googled and found the menu-2457 options; I gave this information to the calibrator and he said something like "those are the right codes but there's another code we need to actually do the calibration." Unfortunately I'm a sophomore when it comes to calibrations - I know just enough to get myself in trouble so I can't really argue any further with him. Could someone please tell me what the calibrator will need to know (codes or anything else relevant) in order to finally get this calibration done? It drives me crazy that I've had this thing for so long uncalibrated. It's been bad enough that I've had to go through a huge set of hoops and ladders to get basically every part of my TV replaced in the last year.

Thanks!
post #2406 of 2625
Quote:
Originally Posted by nczj View Post

I need a little help from a calibrator or anybody knowledgeable in the area.
I paid for an ISF calibration from Best Buy a year and a half ago, right when I bought my L75-A91. He came out and couldn't figure out how to do any adjustments other than what's on the basic menu (color, brightness, etc). He said he'd look into it and call me back. Apparently Mitsubishi won't tell him anything at all. I googled and found the menu-2457 options;

Does the LaserVue have the ADV1/ADV2 picture modes like the other DLPs do?

If it does, he can make adjustments to the primary and secondary colors as well as the gain and cut values of the colors too...

I think the menu-2457 option will also give you a red only or green only mode, which will also help to adjust those values in the ADV1/ADV2 picture modes. That should be all you need to do to get a decent calibration out of the TV...

If you want to take it further, you'll probably need an external unit like a Lumagen with 125 point... but those are expensive!!
post #2407 of 2625
Quote:
Originally Posted by sodaboy581 View Post

Does the LaserVue have the ADV1/ADV2 picture modes like the other DLPs do?
If it does, he can make adjustments to the primary and secondary colors as well as the gain and cut values of the colors too...
I think the menu-2457 option will also give you a red only or green only mode, which will also help to adjust those values in the ADV1/ADV2 picture modes. That should be all you need to do to get a decent calibration out of the TV...
If you want to take it further, you'll probably need an external unit like a Lumagen with 125 point... but those are expensive!!

It has ADV1/ADV2. menu-2457 gives you access to the following, however I'll admit I don't really know what they are. If anybody could clue me in I'd appreciate it:
Hvpos
Tsp
Grwh
Grwl
Ggwh
Ggwl
Gbwh
Gbwl
Bcmh
post #2408 of 2625
You do not need to use those settings in the MENU 2457 section and without proper understanding you could set the lasers to an incorrect level. The ADV1 and ADV2 should be all you need for a very good calibration - that is why there are there. As said before an external processor is also an option.
post #2409 of 2625
Alright I'll have him calibrate it using the ADV1/ADV2 menu. Would you mind giving me a quick rundown of what each option does (or is there a link somewhere that already has this info)? I'm sure he isn't very familiar with Mitsubishi as Best Buy doesn't sell many of them and I don't want to get a mediocre calibration because of his lack of knowledge, I'd like to give him some backup if I can. He does have an external unit so there is that saving grace.
post #2410 of 2625
Quote:
Originally Posted by nczj View Post

Alright I'll have him calibrate it using the ADV1/ADV2 menu. Would you mind giving me a quick rundown of what each option does (or is there a link somewhere that already has this info)? I'm sure he isn't very familiar with Mitsubishi as Best Buy doesn't sell many of them and I don't want to get a mediocre calibration because of his lack of knowledge, I'd like to give him some backup if I can. He does have an external unit so there is that saving grace.
Not to be harsh, but if you need to hand hold the calibrator to this degree it would probably be wise to get someone else to do it who's actually qualified. Any calibrator who has a clue ought to be able to figure out how to use the ADV1 / ADV2 settings properly.
post #2411 of 2625
Quote:
Originally Posted by gsr View Post

Not to be harsh, but if you need to hand hold the calibrator to this degree it would probably be wise to get someone else to do it who's actually qualified. Any calibrator who has a clue ought to be able to figure out how to use the ADV1 / ADV2 settings properly.

I don't disagree. Is there a good resource to find calibrators? Unfortunately Best Buy kind of has a monopoly on the TV world here in Charleston, SC.
post #2412 of 2625
Quote:
Originally Posted by nczj View Post

Alright I'll have him calibrate it using the ADV1/ADV2 menu. Would you mind giving me a quick rundown of what each option does (or is there a link somewhere that already has this info)?

I think most of the options explain themselves with the exception of the Red Low, Red High, Green Low, Green High, Blue Low, Blue High.

The "Low" options adjust the low end of the gray scale and the "High" options adjust the bright end.

Everything else like gamma and the saturation values, etc. he should know what to do with...

You can find a basic guide to calibrating with a CMS at http://www.avsforum.com/t/852536/basic-guide-to-color-calibration-using-a-cms-updated-and-enhanced

It should help him out.
post #2413 of 2625
Quote:
Originally Posted by nczj View Post

I don't disagree. Is there a good resource to find calibrators? Unfortunately Best Buy kind of has a monopoly on the TV world here in Charleston, SC.

The biggest problem with BB calibrations is that the company puts a time restriction on the job, 90 minutes in to out seems to be the norm. Equipment setup and takedown time leaves an inadequate time to do a full scale calibration so the customer usually only gets the two point grayscale accomplished and the very important Color Management System is left untouched. Full calibrations take a good deal longer than 90 minutes.

You might find a calibrator near you here: http://www.thxvideotech.com/forum/showthread.php?542-THX-Certified-Video-Calibrator
post #2414 of 2625
Quote:
Originally Posted by SJCoruja View Post

Yes, I got the same thing on both of my Laservues.

That both makes me feel better and quite sad. If you have the time to put into this, I'd appreciate if you called the LaserVue support and let them know this exists: 1-877-675-2224. If you can manage to talk to "Andy" that would be even better since he is already dealing with 'my' issue (which it would seem is more wide spread then they think).
post #2415 of 2625
If you ask the wrong question, you often get the wrong answer.

It seems Mitsubishi was asked about the service menu options and if there were calibration features there. The answer is "no" as far as the service menu is concerned. Now you assume that the CR rep knows that the BB Geek Squad guys already know about the ADV 1/2 and are trying to go around that.

Frankly, it is very unlikely the Mitsubishi CR reps know anything about the training of the BB Geek Squad so the Mits people do not know that the Geek Squad needs to be told about ADV 1/2. BB is in charge of the Geek Squad, not Mitsubishi.
post #2416 of 2625
well my light engine came from Mitt. The repair man came from north Florida. When he open the back the condenser were the fans are was very dirty, he clean that. The TV is very solid build, the engine is all metal with one small fan in the bottom of the engine, I had a nitrogen tank and we clean the unit in the back. He told me that the reason the white dots were there was because the engine over heat. Well the TV is brighter than before and the colors are so nice.
Mitt. Customer Service was great and they call me all the time about the situation. I am very Happy, Thank you Mitt.


L75-A91
post #2417 of 2625
@nescosmo - Was the engine over heating from the dust in the fans? Sounds like these things should have cleanable screens.
post #2418 of 2625
Quote:
Originally Posted by nescosmo View Post

well my light engine came from Mitt. The repair man came from north Florida. When he open the back the condenser were the fans are was very dirty, he clean that. The TV is very solid build, the engine is all metal with one small fan in the bottom of the engine, I had a nitrogen tank and we clean the unit in the back. He told me that the reason the white dots were there was because the engine over heat. Well the TV is brighter than before and the colors are so nice.
Mitt. Customer Service was great and they call me all the time about the situation. I am very Happy, Thank you Mitt.
L75-A91

I too have the L75-A91 and last month it started powering off randomly in the middle of watching TV. I called up Mitsubishi and they sent a technician out to my house to check it. The tech said that the TV needs a new "light engine" which he would have to order and that it takes a couple of weeks for the part to come in. He also said that this problem usually happens due to dust accumulation causing the light engine to overheat and the TV to shut down. Within hours after he left my house our LaserVue shut down for good and doesn't turn on at all now. This sucks because we now have to go without a TV for 2 weeks!

I hope that they will eventually fix it but even then I am now concerned that this problem will happen again. This TV should have been built with removable/disposable air filters which should be replaced after so many hours of operation. I wish somebody made high-flow disposable filters that I can purchase and place in-front of the air vents to prevent dust from entering the console so that this doesn't happen again.

This is a great thread, I will come back to post here how my TV repair with Mitsubishi goes.
post #2419 of 2625
It's not a bad idea to get some sort of air filter and tape it to the fan intake.
Anyone do this or have suggestions? Sounds like it will prevent a lot of worries down the road.
post #2420 of 2625
Quote:
Originally Posted by DoctorM View Post

@nescosmo - Was the engine over heating from the dust in the fans? Sounds like these things should have cleanable screens.




Yes the Condenser that is behind the two fans get so dirty that it took us to clean it with a dental brush (because the space is so close to the fan ) and then blow it with air.
I am an A/C man and the first thing that I did after he finished was to take blue tape and tape filter material on all the intakes of the TV. The fans blow the hot air real good and most of the time the air is warm not hot at all.
After the replacement, the TV looks extremely sharp.
What I learn was if you take the cover off and do not touch any parts and clean the condenser and every thing else with air and put the cover back , it will give the TV a new life I saw how he install the engine but do not recommend you to do that, and will not do it myself ether.
All of you clean your TV and put filter material and that will save a lot of money to you and Mitt.
post #2421 of 2625
Quote:
Originally Posted by nescosmo View Post

All of you clean your TV and put filter material and that will save a lot of money to you and Mitt.

Did you tape the filter material to the outside of all the vents? Also, can you please post a link to the filter material you chose to use? I am assuming it has to be low density high air-flow material and I would appreciate a recommendation.

Having experienced this problem myself I must say that I was surprised to see what a dust magnet this TV is. There was literally a blanket of dust covering the rear vent space of my LaserVue. eek.gif
post #2422 of 2625
Quote:
Originally Posted by DoctorM View Post

It's not a bad idea to get some sort of air filter and tape it to the fan intake.
Anyone do this or have suggestions? Sounds like it will prevent a lot of worries down the road.

I don't own a Laservue, but I've done this to several 3-LCD, SXRD, DiLA, or DLPs. Stores like Lowes or Walmart have a pretty good vacuum cleaner bag department, and they sell the flat final filters for HEPA vacs. They look like heavy felt or some kind of fiber material, about 1/8" to 3/16" thick, in pieces up to about 4" x 8". Some are generic, just a chunk that you cut to whatever size you want.

Figuring out how to attach it so it doesn't look too hellish is another problem.
post #2423 of 2625
Heh heh. Had a talk with Mits' so called customer service today. They wanted to send a service person around.
We asked what the technical department found with the test DVD I made (that causes the artifact).
Their answer? Their tech department has no Laservues to test on.

What? Seriously? There has to be a REAL tech department somewhere or they wouldn't know how to make firmware updates.

I can't say I'd recommend buying a TV from Mitsubishi to anyone on the fence.
post #2424 of 2625
Quote:
Originally Posted by ChuckF. View Post

I don't own a Laservue, but I've done this to several 3-LCD, SXRD, DiLA, or DLPs. Stores like Lowes or Walmart have a pretty good vacuum cleaner bag department, and they sell the flat final filters for HEPA vacs. They look like heavy felt or some kind of fiber material, about 1/8" to 3/16" thick, in pieces up to about 4" x 8". Some are generic, just a chunk that you cut to whatever size you want.
Figuring out how to attach it so it doesn't look too hellish is another problem.

Need a big filter because the rear vent of this TV is quite big. I am trying to figure out how to attach this one which I found at Lowes:

http://www.lowes.com/ProductDisplay?partNumber=31081-87308-SM100S&langId=-1&storeId=10151&productId=3032401&catalogId=10051&cmRelshp=req&rel=nofollow&cId=PDIO1

It's washable reusable fiberglass filter of size 20"x30"x1" and you can cut it to the size of the TV's vent. For under $6 a sheet I would probably just throw it away after 1 use.
post #2425 of 2625
What bugs me is the fans look like a standard size PC fan or something that they make washable filters for... except you can't access them easily. Taping to the outside seems the answer.

Btw, a new Mits rep tells me the tech department DOES exist and have LaserVues, but no ability to burn a DVD... or perhaps even play one of those mysterious shiny round objects. What a bunch of chimps. mad.gif

After yelling (oops, didn't mean to get that mad) I was given a address to which I can MAIL a test DVD they they might be able to figure out how to play on a LaserVue. Sigh, so these things are flawed. Living with it seems the best answer. Seriously, these are too expensive to be so mediocre.
post #2426 of 2625
Quote:
Originally Posted by Upgrader View Post

Need a big filter because the rear vent of this TV is quite big. I am trying to figure out how to attach this one which I found at Lowes:
http://www.lowes.com/ProductDisplay?partNumber=31081-87308-SM100S&langId=-1&storeId=10151&productId=3032401&catalogId=10051&cmRelshp=req&rel=nofollow&cId=PDIO1
It's washable reusable fiberglass filter of size 20"x30"x1" and you can cut it to the size of the TV's vent. For under $6 a sheet I would probably just throw it away after 1 use.



Make shure that is not hug hair filter.hug hair is too dense for the TV. I use 1/4 or 3/4 filter material 3/4 is best last longer it yellow or white yes fiber glass, do not use the cheep blue filter material , those filters the fiber galss is too hairry and it will cause essues I wish that I could take a picture of the material I use but I do not know how. I 'm going to see if I can do it tonight so you all can see.
S If you have a factory that make filters you can get filter material on their trash can and use it; Some times they have long pieces that can last you a long time.
post #2427 of 2625
Hi nescosmo,

Can you post a link or picture (or name) for the filter you are using?

Thx
post #2428 of 2625
Quote:
Originally Posted by JKilgore View Post

For those of you having the studder issue watching TV: I contacted Mits about this issue and was told by their rep that they knew about the issue and I would be receiving an update. I asked whether this would be in the form of firmware upgrade or if they would send someone out. The rep told me he was not sure, but I would be receiving a call soon.

Any update on this? I'm starting to think that the issue I'm having is a result of judder/stutter/whattuter occurring when the camera pans up or down and pushing the image too high into the overscan region. As a result the shimmering line appears.

I was considering retweaking the geometry myself, but if Mits is considering a firmware fix of the judder, I might want to see if that works first.
What model/firmware do you have? My A96 is 13.04 (iirc).

@nescosmo - Can you provide further filter info for us like Upgrader asked?
post #2429 of 2625
Quick update on my saga:

Repairman came by the house and replaced the light engine. However, the TV would not start and he ordered a new "main board". When that arrives and gets installed I will update the thread. He did say that taping filter material on the left side of the TV and opposite the fans should help with the dust and ventilation problem but I would have to keep an eye on it and clean it on a regular basis. (BTW, when he opened the back of the TV and showed me the TV's internal filter it was totally jammed with dust.)

What sucks about this whole thing is that our L75-A91 has been down for nearly 3 weeks now and still waiting on parts. It would be nice if Mitsu gave us a replacement (even a smaller size replacement TV) to get by during the holidays while the repair and parts work is in process. On the other hand this wouldn't have happened if they had installed a removable dust filter on the outside of the unit with instructions to monitor and clean monthly. rolleyes.gifrolleyes.gifrolleyes.gif

Other than that it is a great TV to watch movies.
post #2430 of 2625
@Upgrader: Are you saying to add filters on both sides or just the fan intake side? The other side wouldn't sound like it would make much difference.
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