==>>The Official JVC - DILA - Z/Gx86 Owners Thread<<== - Page 3

What other possible use could there be for the VGA in?

I read the manual for the 61 (I am kind of assuming most of the functionality will be the same with the 52 version), and I am kind of concerned that the VGA input only supports 1024x768. Does anyone know if it will do 1280x720? I was kind wanting to use the vga in for my HTPC and that is at the moment setup for 1920x1080i via a vga->component converter. I was hoping that the JVC would eliminate the need for that converter with the VGA input but if it only supports 640x480 and 1024x768 that would really makes the input useless for me .

I havent found any useful specs on the vga input.

Well I just got the unit and opened it up. Picture is a great improvement on the HS20, which I already liked. Terrific color, nice black level. There is a "slight" color convergence issue, but very small and toward the sides.


THe manual does state 640 x 580 or 1024 x 768 for the pc input.

Hopefully a firmware update can allow it to take the native res.

When I get mine, I'll hook up a laptop to the VGA connector and see what kind of picture it produces. Maybe do a little surfing and see what that's like. I expect 1024x768 with the TV set to 4x3 will give good results. I'll report and maybe post a few pics.

I'm pretty interested in this set, although I may wait for the 1080p sets. The two questions which I'm most interested in, because they are current issues, are:

1) Is there chromatic aberration ( no amount of tweaking or filters will eliminate this)

2) Are the colors uniform (same as above and this requires a new light engine)

This may be a dumb squestion but are the models reviewed here the same, or a newer version, of the HD-61Z575 that Costco is selling for $2,899? How does it differ and is it worth the extra price (whatever that is)? How can I find out how much more these are?

Also, are these noticeably better than say a Sony 60xs955 LCD or a Samsung 5674 DLP or is it just like the difference between the LCD and DLP where 50 guys will say the LCD is best and another 50 say the DLP is better.

To tie this into the thread so as not to offend anyone, I'd love to hear reviewer's comments on why it is better or worse than the other 2 technologies. I'm basically down to these three brands but know the least about the JVC.

Thanks
Dane

dhauser -
These are the new 720P Models that have just shipped and waiting feedback reviews but so far we've had very little feedback from those lucky recipients. (The 1080P models ship in late fall) It is rare for Costco to ever have new product they usually sell generation back.

Some of the new models are on the Power Buy Section at the top of the forum

JVC HD61Z786 - 61 720p DILA TV - black frame - tentatively due to ship by End of March / Early April

JVC HD61Z886 - 61 720p DILA TV - silver frame - tentatively due to ship by End of March / Early April

JVC HD70G886 - 70 720p DILA TV - tentatively due to ship by End of March / Early April

As to feedback we've had very little from our fellow members so far - they're either addicted to the new TV's or other problems have occurred. So far this thread has gotten large with about 98% containing no feedback whatsoever and I think we've been abandoned by the new owners with next to no review material, really very disaapointing of rehashing SOSO.

One can hope we can get someone to give a detailed review with a little Q&A?

Perhaps we need to take up a collection to ship a case of beer and pizza's to get full review sessions?

I am not totally sure how to look for these items. I have the original video essentials dvd - is there a pattern on here that will help with the answer?

I do find the colors on the set to be very "correct" looking, as well as naturally saturated when set with VE.

I have it off right now awaiting someone to come over and help move my new stand into place and get the tv on it.

Might be a REAL interesting review after a case of beer....

hifiaudio2:

Try to put an image with white words or white areas on pause. Look at the left and right edges of the letters or white image. If you see a thin line of green on one side and magenta on the other, let us know. Try to count the pixel width of any such colored line. Is it only visible at 2 feet or can you see it at a normal viewing distance?

Also, put a solid color on display, if you can. Does the color maintain the same shade all across the screen? The opening black sky of Star Wars might be something to look at- is the black of space around the words consistent or do some areas look brighter or of a different shade?

And look at images with lots of blue sky- does the blue meld into different shades nicely or does it show visible banding of colors?

Just to clarify a little.

"Look at the left and right edges of the letters or white image. If you see a thin line of green on one side and magenta on the other, let us know. Try to count the pixel width of any such colored line."

This is chromatic aberration. It is caused by poor optics in the light engine and was an issue with the older sets.

"Are the colors uniform?"

Some of the earlier JVC sets had a tendency to show a purplish or green hue in one corner. I'm not sure if this is associated with a technical term.

"does the blue meld into different shades nicely or does it show visible banding of colors?"

This is vertical banding. It is a common problem with LCDs and somewhat with LCOS.

blotching?

I believe I have observed the thin line of red as you near the left side of the screen, I had always considered this a slight misalignment of the panels. It is no more noticeable than it was on the hs20, and doesnt detract while watching movies. I will report back with how close I have to be to seriously notice it.

I will be watching it a lot tonight for the first time and should have a good report for you.


I will say this: nothing is perfect and I know this as well as anyone. I am a perpetual "sit on the fencer" - always waiting for the next big thing and rarely purchasing. I can say that I have no buyer's remorse at all on this set!


I do wish it had a dvi input as well, though - or at least 2 HDMI.

You people and your observations. I went and looked closely at the screen. It was on the discovery HD channel. This effect is pretty noticeable on the left side, with green being 3-4 pixles off, and red being about 3 off. If it is on one set, is it generally on them all, or would exchanging it and getting a new one be beneficial?

hifiaudio2, to evaluate CA I recommend using a crosshatch test pattern, if you have one. I don't have DVE, but Avia has a grid pattern of widely spaced white lines on a black background. CA will show up as magenta or green fringing on the lines. I would expect a misalignment of the 3 devices to show similar fringing across the whole pattern. On the other hand, CA, which is an optical flaw, will get worse as you go farther from the center, and will be symmetric, meaning the green fringe will always be hanging off the side of the line towards the center.

If you're close to the set you can also see the effect on shots with white titles on dark backgrounds.

I'm interested to hear any results, because I had and returned a 52Z575, and the CA was a big reason. In practice, I would very rarely see the color fringing from a viewing distance of 10', but I felt that the focus of the image was bad ourside the center part of the screen, and it stands to reason that the CA was to blame. I saw varying degrees of CA in a least 5 different sets in the stores, so I didn't bother trying a second JVC (ended up with the Sony 55WF655). With the same pattern I could detect no CA on my Sony or a previous Mits DLP.

Note also that on the x75 sets you can adjust the alighment of the panels in whole pixel increments via the service menu. In case you run into this problem, you'd figure similiar adjustments would be available on the new sets.

A slightly unrelated question.

On the stand I have, I have two options for the center channel:

Put it on the second stand shelf, below the tv, where the drivers would be about 17" from the floor.

Or build a shelf atop the tv, where the drivers would be about 67" high. What is the better option?

A third would be to get a lower stand, and put it on top of the tv, but that requires returning what I have.

It is odd how the CA seems so different depending on what I am watching. Many shows done seem to show it at all, and the dvds i have watched dont seem bad, but discovery HD was pretty bad.


Watched Deadwood HD tonight, it sure seems VERY dark - I turned up the brightness a good bit to see any detail at all in dark scenes - this was unnecesarry even on Xmen dvd - other hd channels seem extremely bright when I changed to them.

There are claims that using the center channel above the TV is better and less fatiguing. I'm not sure the reason for this. It does stand to reason in most shots, the actors heads are closer to the top of the screen and that dialog would most naturally come from this area. For a more definitive answer you could post the question in the Audio setup and Theory forum or search as I'm sure the question has been asked.

Vertical banding refers to slight differences in brightness in adjacent columns of pixels, caused by incorrect driving voltages. It has the appearance of a screen mesh where some of the wires are pushed closer to each other than others. It is most visible on fields of uniform light color and is fixed to a position on the screen.

Color banding is different and is usually a scaling or mpeg decoding artifact. I think Navychop may have meant that.

BB

> This is the solution I used.
http://www.avsforum.com/avs-vb/showt...ight=tokerblue

Updated.

Tokerblue... link seems to be broken.

All,

Two things I've noticed in my 5 days with the 61" 786:

1.) The JVC stand is not very useful as it only holds < 7" components. My B&K AVR-307 and HTPC don't fit.

2.) I haven't been able to get anything better than 1024x768 on the VGA input. The display is fixed and will "scroll" the window if you use a higher resolution. I've only tried VGA and S-video. I haven't tried DVI to HDMI nor VGA - to - component-in. I will be trying DVI 2 HDMI in the next few days. I have to figure something out as this is one of my major requirments for a display.

Which stand are you using, the old RK-CILA5S stand, the new (and so far unseen) RK-CILAM6 listed in the product brochure, or the one you can get with the powerbuy (not from JVC)?

If you mount a center channel to where the tweeters are above or below the height of your ears at the listening position, then you should angle the speaker so it can fire directly at your ears. Treble response from your center speaker will fall off if your ear is off-axis, this will be worse on some speakers than others.

RK-CILA5B

Sorry to hear that. Maybe you'll want to check with JVC and see if the new stands they are making for the 786/886's will have more space between the shelves.

Just my luck! I am anxiously awaiting word on this particular tv set and the reviewers are mostly concerned with stands, sound systems, dvd's, connecting computers and game playing.

What ever happened to just watching television on a television set?

I'm just kidding, guys, but I would ask you to show a little mercy for us old fashioned types that just like to watch tv and try to do it with the best picture possible.

Best of luck to all of you that gone with the new JVC. I hope it proves to be a great set.

I am finding that the CA is very dependent on the material being displayed. It seems almost nonexistent on dvds. In fact, this is the best I have ever seen my dvds look, and all on a cheap pioneer progressive scan output through component.

I high quality hdmi player should be even better (hopefully one of the new denons at some point)

Other than absolute black level, dvds look better on this than on my Barco 808 crt. And the brightness is so high that apparent black is good as well.

hifi- can you elaborate on the CA? You mean there is no green/purple pixel inside edges on DVDs but there is on SD? Seems weird to me. I thought if it's there, it would show on every source.