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Problem with even blacks on my Sony LCOS SXRD

Raggedvic
01-12-2006, 03:22 PM
Hi there,
I just bought a Sony 50" LCOS TV (SXRD KDS-R50XBR1) and I noticed that the lower right hand corner area is a very dark purple when the screen shows black. This is on all my inputs. I don't notice it during bright scences only during dark scenes. It's not all that bad, but you can tell by looking closely that it's a very dark purple when a black scene is shown rather than true black. The other parts of the screen look black. You can also tell when there are black bars on either side of the picture, the left bar is black and the right bar is a very dark purple. Is this something that can be fixed or at least reduced if I get an ISF calibration done on my TV. Can an ISF calibration adjust black levels on just portions of the screen? I don't have any speakers near the TV and I've turned off my Cox HDTV cable box and receiver to see if it clears up the problem, but no luck. Thanks for your help.

Vic

d6500k
01-12-2006, 08:34 PM
Can an ISF calibration adjust black levels on just portions of the screen? Not to my knowledge on your display.

I have not seen this on any sxrd so far, nor have I heard of it with this Sony. That does not mean you are not looking at it right now though...

Try this, reduce the black level to where the lower right also goes to black. Check to see if a test pattern for setting black and white levels is correctly set. It might be that the B/W level adjustment helps with the variance but it will not adjust the "purple hue". That is one of the things that a calibration does fix. Blacks will be black and whites should be white.

Good viewing,

Doug k

Top_Speed
01-13-2006, 10:26 AM
Hi there,
I just bought a Sony 50" LCOS TV (SXRD KDS-R50XBR1) and I noticed that the lower right hand corner area is a very dark purple when the screen shows black. This is on all my inputs. I don't notice it during bright scences only during dark scenes. It's not all that bad, but you can tell by looking closely that it's a very dark purple when a black scene is shown rather than true black. The other parts of the screen look black. You can also tell when there are black bars on either side of the picture, the left bar is black and the right bar is a very dark purple. Is this something that can be fixed or at least reduced if I get an ISF calibration done on my TV. Can an ISF calibration adjust black levels on just portions of the screen? I don't have any speakers near the TV and I've turned off my Cox HDTV cable box and receiver to see if it clears up the problem, but no luck. Thanks for your help.

Vic

You got a great set, I checked out the Sony line big time and was on the fence. One of my negitives was the LCoS did not quite produce great saturated black levels. (nor does my Hitachi 70" LCD that I own, but I turn that set over to my g/f when I watch F-Ball) I noticed that my Hitachi gives a very faint blue-ish (I'll say haze) on the would be black saturated scenes.

When I compared the LCoS models I noticed the same thing. I'm not sure about purple however but it may be how you have your colors and hues adjusted so your saturated blacks are a bit violet (hazed). Bright scenes are OK I'm sure, in fact your set should accel at these scenes!

On my LCD (faint hazing), I try not to let it (the non saturated blacks) get into my head, otherwise it gets amplified and then I surrender the set like I said to my woman.

So keep it out of your head and you'll enjoy that set like there's no tomorrow!

Top_Speed
01-13-2006, 10:36 AM
Oh one more thing,
Magnetic energy (from your speakers) only effects Cathoid Ray Tube sets. It mangles the elctrons flowing to the screen. And if your problem is just a corner? maybe your bulb is not focused on the chips evenly? You may also be getting a "bending" of the light that is reflected (bounced where it should not be by accident and into the projection system

[example] You must have seen some of the hi-end Porche's etc. The headlights look very purple straight on (~12 Kelvin), and from the side they are just white (~4,500 Kelvin). This is done by "bending" the light and refracting it. This may be happening with scattered light in your set.

Just a thought...

BuTal63
01-13-2006, 03:23 PM
Scores of new SXRD owners are reporting the same thing. Many others have "blue hue" problems, green blobs in various screen locations, and other color anomalies.

A few report they can minimize some of the problems with tweaking of the SXRD's many adjustments. Others report that they only see the problems in non-active areas of the screen or when switching to unused inputs and they are willing to put up with it for the otherwise superior SXRD picture.

But there are many who do see color problems in the active screen and find it annoying, especially when viewing in a totally dark room. Several owners have replaced their sets when there is a return privilege, often finding the new set no better or even worse. Sony has replaced a few light engines and also replaced sets, but has thus far not admitted there is anything fundamentally wrong.

There have been several guesses as to what is causing these problems, but nothing has been proven and to the best of my knowledge no repairs have eliminated the problems, including swapping light engines.

Also unknown is what percentage of the total number of SXRD's sold is represented by the many people reporting various problems with their new SXRD's. They have been very popular sets.

Here is a forum with nearly 6,000 posts, mostly by SXRD owners like yourself. Some are extremely happy and others are not happy at all.
http://www./avs-vb/showthread.php?t=584936

Rumor has it there will be a 55" addition to the SXRD line this year and that it may have a new light engine.

MGman
01-13-2006, 05:02 PM
"scores of owners"? Whew, I guess I'm a lucky guy. How many sets sold, what percentage of those sets are innappropiatley set up, and don't forget the AOF, (anal owner factor), which I'm beginning to think is a real issue, and maybe should recieve some clinical testing so they could put a label on it, like ADSXRD disorder. LOL!

Top_Speed
01-16-2006, 09:57 AM
"scores of owners"? Whew, I guess I'm a lucky guy. How many sets sold, what percentage of those sets are innappropiatley set up, and don't forget the AOF, (anal owner factor), which I'm beginning to think is a real issue, and maybe should recieve some clinical testing so they could put a label on it, like ADSXRD disorder. LOL!

:yippee:

-When people pay so much, they expect much in return (justified!).
-Some expect more in return than what is spent however.

I like the AOF reference. (BTW) I read that entire lengthy post, seems like most are happy, some near the end of the post start beatching but not bad considering your AOF theory. I have alway been a Sony fan (and I sell HT products but can't get Sony or Mitsu B/C it's in a protected area here). I have the Tosh's, Pioneer, RCA lineup. I went out and bought a Mitsu for my personal set? (hmmm...) Anyway I would have been happy (& proud) to own a Sony as well.

If Sony has a problem with this dark-color blotching thing, I'm sure they will resolve it and offer a eprom flash or something. They can't (& wouldn't) let this ruin what has so far been a fine reputation.

OK... Sony "bashers" will be ribbing me for siding with them (SONY), but jealousy get's you nowhere! hehe.

BuTal63
01-16-2006, 12:33 PM
Agreed all around, gentlemen. No one is able to get a handle on the percentage of sets having problems. For all we know, it may be a very low percentage, but no stats available either way. Still, there have been so many problem reports and .jpgs posted showing some of the anomalies, that it was enough to put me on the sidelines for now and wait for the next gen SXRD. Perhaps if all the happy buyers were as motivated to post their feelings as the unhappy ones, I would have gone for the first gen.

When you spend this kind of money on a stinking TV, I think you have a right to view one whose degree of perfection is not dependent on luck. Reminds me of the old Trinitron days. I have had two of them. When you bought a box with "Trinitron" or "Trinitron XBR" on it, you KNEW you were getting the best. I'm hoping Sony will tweak things where needed, to insure that will be the case with these expensive new HD toys.

I have seen four SXRD's in the stores. All had the best picture on the floor and none had color problems. However, up close all showed varying amounts of either mis-convergence or chromatic aberration, whichever you choose to call it, characterized by red and green fringing on either side of white lettering in news crawls and similar material. Once I noticed it, I could not "un-notice" it when I moved back to Sony's minimum recommended viewing distances of 6.5 feet for the 50" and 7 feet for the 60." Further back, as hard as I tried (AOF?) I couldn't see it.

BTW, I have always been a Sony fan. In fact, just bought myself a Sony DSC-H1 digital camera for Christmas. It's a beautifully designed, well-crafted, smooth performer that takes great pix and offers excellent value. I'd go on, but wrong forum.

daleb
01-16-2006, 01:15 PM
The Cienza $3500 front projector, and now the $10,000 VPL-VW100 have great reviews. Perfect Vision claims that one rivals the $25,000 Qaulia 004 FP.

jenno2
01-16-2006, 03:19 PM
I know this not exactly on topic, but I really like the Sony SXRD, but the viewing from angles, other than straight on is not great. Any other opinions on this. My second choice would be plasma, probably Pansonic or Pioneer, maybe Fujitsu.

Top_Speed
01-16-2006, 04:20 PM
I know this not exactly on topic, but I really like the Sony SXRD, but the viewing from angles, other than straight on is not great. Any other opinions on this. My second choice would be plasma, probably Pansonic or Pioneer, maybe Fujitsu.

Wait till the LCoS technoligy gets refined more. Remeber LCoS is still considered in it's infancy. I'm sure the (later chip sets) will have improved side vision etc. I remember when CRT RP sets just came out, I think the view angle was like 35 degrees, now some boast 160 to 170 degrees!