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2010 Mitsubishi 3D DLP Owners Thread (638 series) - Page 33

post #961 of 1375
Quote:
Originally Posted by Daye View Post

hey if u have 1 of these tv's where would u connect the logitech 2.1 speakers?



http://www.amazon.com/Digital-Optica...4386812&sr=8-1
post #962 of 1375
Quote:
Originally Posted by TatorTot View Post

So are all of you happy with your purchase ?

Yes. It's a purchase that is shortly going to be hard to make since Mitsubishi is going to stop selling DLP TVs that are smaller than 73"
post #963 of 1375
il just order digital 2.1 speakers cuz that adapters way to expensive


btw i realy was thinkin buyin this tv was a waste of money but now after i been playin xbox on it its fantastik i love it
post #964 of 1375
Can anyone tell me how to check lamp hours on the 638? I know for the 738 you do menu-> 2470 and it's there, but I only see information unrelated to the lamp hours on 638. Thanks!

A 2nd question since no one has answered yet; If I'm going to use my htpc to output checkerboard I do not need the adapter and just need either dlp link glasses or any glasses that are compatible with the mits series??
post #965 of 1375
Quote:
Originally Posted by zpanderson View Post

Can anyone tell me how to check lamp hours on the 638? I know for the 738 you do menu-> 2470 and it's there, but I only see information unrelated to the lamp hours on 638. Thanks!

there is no way to check lamp hours on the 638 series
post #966 of 1375
So we will know when the lamp is dead if the tv doesn't turn on ?
post #967 of 1375
Quote:
Originally Posted by TatorTot View Post

So we will know when the lamp is dead if the tv doesn't turn on ?

not so much dead but you will see a red status light where you usually see a green one. This means lamp failure and its time to replace.
post #968 of 1375
Quote:
Originally Posted by shibez View Post

not so much dead but you will see a red status light where you usually see a green one. This means lamp failure and its time to replace.

That's a real bummer. I wouldn't consider lamp hours to be a premium feature!
post #969 of 1375
Hi folks. Got my 82738 delivered today. There is some geometry issues with it, same as I've seen on just about every dlp I come across though. I did enter the service menu and manually corrected which help some, but it's not perfect. But unfortunately that's the nature of dlp.

My other concern though is that there are a couple of black specs on the inside of the screen. I took a pic of one. It's not terrible and really only visible from my chair when the screen is completely white as in the case of the pic.

I've seen this kind of imperfection before on other sets. Does it just come with the territory or should I have best buy bring me out another one?

Thought? Opinions? Facts?
LL
post #970 of 1375
Quote:
Originally Posted by kjahadi View Post
Hi folks. Got my 82738 delivered today. There is some geometry issues with it, same as I've seen on just about every dlp I come across though. I did enter the service menu and manually corrected which help some, but it's not perfect. But unfortunately that's the nature of dlp.

My other concern though is that there are a couple of black specs on the inside of the screen. I took a pic of one. It's not terrible and really only visible from my chair when the screen is completely white as in the case of the pic.

I've seen this kind of imperfection before on other sets. Does it just come with the territory or should I have best buy bring me out another one?

Thought? Opinions? Facts?
same thing happened with my new 60638..only i had 2 specs. strange thing is they both went away a few months later. i think its dust on the inside and it eventually got blown away.
post #971 of 1375
Shibez are you on the brilliant mode now ?

I think thats the best picture mode, natural looks dull
post #972 of 1375
Quote:
Originally Posted by kjahadi

My other concern though is that there are a couple of black specs on the inside of the screen. I took a pic of one. It's not terrible and really only visible from my chair when the screen is completely white as in the case of the pic.

I've seen this kind of imperfection before on other sets. Does it just come with the territory or should I have best buy bring me out another one?

Thought? Opinions? Facts?
That would annoy the hell out of me


Glad mine doesn't have that
post #973 of 1375
Quote:
Originally Posted by TatorTot View Post

Shibez are you on the brilliant mode now ?

I think thats the best picture mode, natural looks dull

funny you should mention that..Ive been using brilliant for the past 4 months and loved it but Just tonight changed them to Bright..While Brilliant looks amazing one thing always bothered me about it and its the blue..well yellow too but blue the most. Sometimes the blue looks more Purple in certain scenes like in backgrounds. I always did favor a more "natural" picture on my tv's But the natural on here is like you said Dull. Bright has that natural native vibe too but isnt dull.
post #974 of 1375
Quote:
Originally Posted by kjahadi View Post

Hi folks. Got my 82738 delivered today. There is some geometry issues with it, same as I've seen on just about every dlp I come across though. I did enter the service menu and manually corrected which help some, but it's not perfect. But unfortunately that's the nature of dlp.

My other concern though is that there are a couple of black specs on the inside of the screen. I took a pic of one. It's not terrible and really only visible from my chair when the screen is completely white as in the case of the pic.

I've seen this kind of imperfection before on other sets. Does it just come with the territory or should I have best buy bring me out another one?

Thought? Opinions? Facts?

I had a similar issue with mine (looked like a shard of black plastic projected onto the backside of the screen). I had Dell replace it, didn't have an issue with the new one
post #975 of 1375
Quote:
Originally Posted by h2dk View Post


I had a similar issue with mine (looked like a shard of black plastic projected onto the backside of the screen). I had Dell replace it, didn't have an issue with the new one

Going to call best buy tomorrow and ask them to replace it. Figured it won't hurt to ask. If they bring one that's worse I'll just refuse it. Might as well.
post #976 of 1375
Quote:
Originally Posted by kjahadi View Post

My other concern though is that there are a couple of black specs on the inside of the screen. I took a pic of one. It's not terrible and really only visible from my chair when the screen is completely white as in the case of the pic.

I've seen this kind of imperfection before on other sets. Does it just come with the territory or should I have best buy bring me out another one?

Thought? Opinions? Facts?

That's a dust or left over plastic drilling debris. I had the same problem with my HDTV when I got it. You can wait for it to fall on it's own but I took a more direct approach after a week and just tapped the screen a few times where the particle was at and the problem was solved. I did have something show up that wasn't on the screen itself, it was more blurred, so it was probably debris in or around the light engine. Thankfully that went away on it's own.

This is normal stuff for RPTVs. You're dealing with a "open" system of sorts because of the lamp, fan, and airspace in between the light engine and screen so dust and particles are always an issue. Even LCD/Plasma sets have issues with this but it's usually limited to when the HDTV was manufactured. Sadly, if there's dust or debris in LCD/Plasma sets you can't knock it out since it's embedded between the layers.
post #977 of 1375
Quote:
Originally Posted by zpanderson View Post

A 2nd question since no one has answered yet; If I'm going to use my htpc to output checkerboard I do not need the adapter and just need either dlp link glasses or any glasses that are compatible with the mits series??

I think most if not all DLP Link glasses will work on any brand DLP HDTV, so long as the DLP HDTV supports DLP Link. If you go IR glasses you'll need a compatible Mitsubishi emitter and IR glasses.

I don't have 3D glasses yet but have researched it a bit. From the reviews I've read and for the newer sets it's better to go with IR glasses (better sync). Plus the new Ultra-Clear rechargable 3D glasses are IR so it might be better to go that route. Not to mention, if you need to get children sized glasses then IR is the only way to go (haven't seen any children sized DLP Link glasses).

But if you're only going to use them for movies, won't be using them in a open lite room, and don't have children then DLP Link glasses are probably the better choice. More so if cost is a factor (no IR emitter needed).
post #978 of 1375
post #979 of 1375
Hopefully official new line announcement will follow soon in June.
post #980 of 1375
Hello everyone!

I have a Panasonic BDT210 connected directly to the 65638 display via high speed HDMI.

I have been researching the names of the various picture distortions in order to help find a resolution to the problem I have been experiencing.

I believe I may have a banding issues, there is a clear distortion visible on the menu screens of the player. The best way I can describe it is it looks like when my computer monitor is set to 256 color mode instead of 24 bit color mode. The distortion is visible on the transitions of colors from light to dark. There is a complete lack of smoothness on the color gradient, much like a pc monitor that isn't configured with the correct color depth. It looks exactly like this, except it is horizontal instead of vertical:

http://img1.lesnumeriques.com/news/1...ade_altere.gif

I also notice that the picture when playing media content looks a little "grainy", please excuse my ignorance of proper terms.

This would be a good example of the distortion I am referring to when playing video content, be it netflix streaming or a blu-ray disc at 1080p:

http://www.avforums.com/forums/attac...ds-banding.jpg

I am trying to meticulously go through all of my settings to enable various configurations to try and eliminate this problem. One theory I have is that the upconversion is screwing with my picture, but what I can't figure out is why is the upscaling on when playing from a 1080p source such as a blu-ray disc.

I have tried numerous picture settings provided in this thread (bright and natural mode, color, sharpness, tint, brightnes, contrast). While I definitely have noticed over-all color improvements, the problem still persists and is noticable. My friend's budget plasma that tops off at 720p absolutely blows away my picture with his high definiton cable channels (720p).

I suppose my question is, what are the next steps in dialing in a fix to this problem? I am continuing to search the forums and reading all that I an to educate myself on this. Any links to existing articles or forum posts that may guide me in the right direction will be greatly appreciated.

EDIT: The banding is not solely horizontal, it's visible vertically and diagonally as well. I notice it anytime there is a blue or gray gradient visible on screen.
post #981 of 1375
Quote:
Originally Posted by LosifYopsin View Post

Hello everyone!

I have a Panasonic BDT210 connected directly to the 65638 display via high speed HDMI.

I have been researching the names of the various picture distortions in order to help find a resolution to the problem I have been experiencing.

I believe I may have a banding issues, there is a clear distortion visible on the menu screens of the player. The best way I can describe it is it looks like when my computer monitor is set to 256 color mode instead of 24 bit color mode. The distortion is visible on the transitions of colors from light to dark. There is a complete lack of smoothness on the color gradient, much like a pc monitor that isn't configured with the correct color depth. It looks exactly like this, except it is horizontal instead of vertical:

http://img1.lesnumeriques.com/news/1...ade_altere.gif

I also notice that the picture when playing media content looks a little "grainy", please excuse my ignorance of proper terms.

This would be a good example of the distortion I am referring to when playing video content, be it netflix streaming or a blu-ray disc at 1080p:

http://www.avforums.com/forums/attac...ds-banding.jpg

I am trying to meticulously go through all of my settings to enable various configurations to try and eliminate this problem. One theory I have is that the upconversion is screwing with my picture, but what I can't figure out is why is the upscaling on when playing from a 1080p source such as a blu-ray disc.

I have tried numerous picture settings provided in this thread (bright and natural mode, color, sharpness, tint, brightnes, contrast). While I definitely have noticed over-all color improvements, the problem still persists and is noticable. My friend's budget plasma that tops off at 720p absolutely blows away my picture with his high definiton cable channels (720p).

I suppose my question is, what are the next steps in dialing in a fix to this problem? I am continuing to search the forums and reading all that I an to educate myself on this. Any links to existing articles or forum posts that may guide me in the right direction will be greatly appreciated.

EDIT: The banding is not solely horizontal, it's visible vertically and diagonally as well. I notice it anytime there is a blue or gray gradient visible on screen.

It does seem like you are sending SD to it. Do you only see this through the Panasonic BDT210? I so, it must be a setting in the 210. This is all I can find in the 210 manual;

HDMI Resolution
The items supported by the connected devices are
indicated on the screen as *. When any item without *
is selected, the images may be distorted.
≥ If Auto is selected, automatically selects the output
resolution best suited to the connected television.
≥ To enjoy high-definition video up-converted to 1080p,
you need to connect the unit directly to 1080p
compatible HDTV (High Definition Television). If this unit
is connected to an HDTV through other equipment, it
must also be 1080p compatible.

If you see it on other HDMI ports, from other sources (cable, satellite, etc.) then it's probably in the TV settings.
post #982 of 1375
Thank you

I notice the same issues with the gradient on HDMI-2 which has a WD TV Live Plus connected to it. It's real easy to see on the menu screens background, just like with the BDT-210

I am going to contact Mitsubishi about a warranty replacement. I have tried all the settings I have found in every menu on all devices, nothing seems to help improve the picture.
post #983 of 1375
Quote:
Originally Posted by LosifYopsin View Post

I notice the same issues with the gradient on HDMI-2 which has a WD TV Live Plus connected to it. It's real easy to see on the menu screens background, just like with the BDT-210

I am going to contact Mitsubishi about a warranty replacement. I have tried all the settings I have found in every menu on all devices, nothing seems to help improve the picture.

It's important to note that HDTV and blu-ray content uses 8 bit color so you will still see banding issues. But the color banding shouldn't be as bad as you've posted, assuming that's a HD reference chart you used (not a upscaled DVD or PC chart). I would recommend trying the following.
  1. Make sure HDMI input devices are set to 1080p output. Disable 1080/24p, if possible use 1080p/60Hz.
  2. While it shouldn't cause this issue, make sure your HDMI cables are "High Speed".
  3. If they support it, try enabling Deep Color on the HDMI input devices, this requires a "High Speed" HDMI cable. This is sometimes labeled as 36-bit color (aka 12-bit color).
  4. Make sure the HDTV format mode is set to "Standard". Also make sure that the HDMI input devices are not using a zoom picture mode.
  5. Make sure your HDMI input on the HDTV is not using the "PC Input" label.
  6. If possible use a animated blu-ray movie as a reference.
  7. Download AVS HD 709 and test using the patterns in the Misc Patterns/A - Additional directory (1-Grayscale Ramp). You'll see banding or blocking with this chart but no where near the image you posted.
  8. As a comparison, try using the component input (not composite).
  9. Use these setting as a "reference" point.
Brilliant Mode
Brightness: 51
Contrast: 95
Color: 38
Tint: 6
Sharpness: 68
Video Noise: Off
Color Temperature: High Here's a sample image of the difference between 8 bit color and 24 bit.
post #984 of 1375
I have a WD-73638 with deep color support along with a Blu-ray player and AV Receiver with it too but still no deep color content from any source.
Frustrating after all the time that has pasted: lifetime in the tech world.
post #985 of 1375
Quote:
Originally Posted by Wesley Hester View Post

I have a WD-73638 with deep color support along with a Blu-ray player and AV Receiver with it too but still no deep color content from any source.
Frustrating after all the time that has pasted: lifetime in the tech world.

My HTPC upsamples and I would assume that some blu-ray players do the same, I know some HDTVs do (built-in). It's still not true 12-bit color but it helps make 8-bit content look better. But you bring up a good point, if he's outputting from the blu-ray and going to a AV rec. and the the rec. isn't set to deep color then it might down-sample to 8-bit color. That would be up-and-down sampling, which won't look very good. I always go direct from source into the HDTV. Then run a separate digital audio connection to my AV rec. for audio only.
post #986 of 1375
Quote:
Originally Posted by Lucid69 View Post

It's important to note that HDTV and blu-ray content uses 8 bit color so you will still see banding issues. But the color banding shouldn't be as bad as you've posted, assuming that's a HD reference chart you used (not a upscaled DVD or PC chart). I would recommend trying the following.
  1. Make sure HDMI input devices are set to 1080p output. Disable 1080/24p, if possible use 1080p/60Hz.
  2. While it shouldn't cause this issue, make sure your HDMI cables are "High Speed".
  3. If they support it, try enabling Deep Color on the HDMI input devices, this requires a "High Speed" HDMI cable. This is sometimes labeled as 36-bit color (aka 12-bit color).
  4. Make sure the HDTV format mode is set to "Standard". Also make sure that the HDMI input devices are not using a zoom picture mode.
  5. Make sure your HDMI input on the HDTV is not using the "PC Input" label.
  6. If possible use a animated blu-ray movie as a reference.
  7. Download AVS HD 709 and test using the patterns in the Misc Patterns/A - Additional directory (1-Grayscale Ramp). You'll see banding or blocking with this chart but no where near the image you posted.
  8. As a comparison, try using the component input (not composite).
  9. Use these setting as a "reference" point.
Brilliant Mode
Brightness: 51
Contrast: 95
Color: 36
Tint: 6
Sharpness: 68
Video Noise: Off
Color Temperature: High Here's a sample image of the difference between 8 bit color and 24 bit.

Thank you for this, what I am noticing is somewhere between 8-bit gradient dithered and 24 bit gradient.

I am going to try one more time tonight and make sure I have everything that you mentioned accounted for. I am definitely using high speed HDMI cables and everything is on 1080p output, but will double check everything nonetheless

I was playing around with my color, contrast, and brightness settings last night. You can clearly see the banding changing in severity and thickness(?) as I change the values on these settings.

If I can't fix this problem tonight I am going to get a replacement unit. Will report back once I have some sort of conclusion.
post #987 of 1375
Quote:
Originally Posted by LosifYopsin View Post

If I can't fix this problem tonight I am going to get a replacement unit. Will report back once I have some sort of conclusion.

You might want to take a blu-ray disc where you see this problem to a store that has the HDTV on demo. Since there might not be anything wrong with the set at all and replacing it will just waste your time and cause more frustration.

Your friends HDTV might be upscaling 8-bit color to 12-bit color (in the set), which would make the picture better. But Blu-ray players that support deep color should upscale 8-bit color to 12-bit color (if enabled in the Blu-ray player). This helps with that issue and would explain how you described what you're saying as somewhere inbetween 8-bit and 24-bit. But what you're seeing is a content issue, not a flaw with your HDTV. Also, smaller HDTVs will not show the defects of content as bad - larger HDTVs make things more easily visible, more so when you sit close. Also, your friends HDTV is 720p so downscaling 1080p to 720p will make the gradients look better.

Be sure that your cable/sat. box is outputting 1080p or 1080i. It's well known that the 638/C10 don't have a very good upscaler. So if you feed the HDTV video sources that's not 1080i/p it will upscale them - everything is upscaled to 1080p by the HDTV. The upscalers are better in cable/sat/blu-ray players so by making sure they're set to 1080p/i you'll get a better picture. And in the case of cable/sat boxes you'll get faster channel changing since the video format won't change.

Also, be mindful that not all HDTV broadcasts are 1080i. Most channels broadcast at 720p. So quality of those broadcasts won't look as good as a 1080i one (at least most of the time). But if you decide to go with another HDTV then make sure it internally supports high quality 1080p upscaling along with up converting 8-bit to 12-bit color.

I have the 65C10 and use it with a HTPC that outputs all of my video, including Broadcast HDTV. With my setup and the settings I provided above my display quality is on par if not better than even the top end LCD/Plasma HDTVs of the same size.
post #988 of 1375
Hi Lucid,

Once again, thank you for the detailed information. I only have two devices connected, a Panasonic BDT-210 and a WD HD Live plus. The banding is clearly visible on all 1080p content and is most noticeable on the home screens of both devices. I have only been using 1080p content to test, I was concerned I was somehow inadvertently triggering the up-scaling but I no longer believe that is the case. I am eager to get home and try and see if I can address this by ensuring everything is set to 8 bit color.
post #989 of 1375
I have decided it's time to call for a replacement unit. I have tried all the suggestions without any luck. Here is the best picture I could produce for illustrating the problem. The banding isn't strictly horizontal or vertical, it's there anytime a color gradient is present. You can see the banding expand and constrict as you adjust the various picture parameters.

Here is my WD HD Live Plus in netflix mode connected to HDMI-2 via high speed cable. The banding issues are consistent across all of my devices and inputs:



As far as a replacement is concerned, I was considering the 65738. However, since nearly all of my source inputs are 1080p, the 73638 can be obtained for the same price as the 65738. Might be worth it to get the extra screen space instead of the better upscaling and native 3D support.
post #990 of 1375
Quote:
Originally Posted by LosifYopsin View Post

I have decided it's time to call for a replacement unit.

I wouldn't bother with getting a replacement unit. That picture looks all too common of the problems with 8-bit color. It's easily visible on pure solid color gradients. But if you want to confirm, I would recommend taking a blu-ray disc that shows the issue to a store that has a demo unit on display to 100% verify.

Otherwise, I would recommend that you return the unit and look for something else that has a in-HDTV video processor which will do a better job at cleaning up 8-bit color. But expect to pony up some extra coin for that, especially at 65". And no matter how good the video processor is, it can only do so much with 8-bit color. Purest usually wouldn't want such additional processing since it can produce other artifacts. The real cure/fix you seek is 12-bit color content.
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