[spivey]

I have a Sony KDSR50XBR (50" Grand Wega) and me and my wife have both noticed image issues lately. I first noticed what appeared to be a ghost in the upper right corner of the guide and the preview window when watching a station, but it wasn't to noticeable. Today, my wife asked my if something was wrong because in that same corner there is a yellow tint. Now when I flip through the inputs (HR20 - HDMI, DVD - Composite, VCR - RCA, Game - RCA) , there is a definate burn in of the guide in that corner. Is anyone else seeing this? It was not very noticeable at first, but now I can certainly tell were it is and I'm more than a little angry; I just bought this TV this past summer, and through all the reviews never heard of anything burning in much less doing so this fast.

 

[Earl Bonovich]

What level do you have your contrast set at? Almost sounds like you have it on "cook" level (very high).

The HR20 is usually on for several hours a day at my house, on the Plasma... no hint of image rentention, let alone burn in.

 

[spivey]

What level do you have your contrast set at? Almost sounds like you have it on "cook" level (very high).

The HR20 is usually on for several hours a day at my house, on the Plasma... no hint of image rentention, let alone burn in.

The preset is set to Vivid, which the manual describes as "enhanced picture contrast and sharpness", but I have the contrast setting itself dialed down to a little over half for the Vivid preset. ( I spent quite sometime with the calibration DVD from CC when I bought this TV, plus I don't like a lot of color bleed through).

 

[tiger2005]

Isn't this a rear-projection SXRD TV? These type of TV's are almost immune from image burn-in. Of the current TV's on the market the Plasma's are FAR more apt to have burn-in problems and that has even been drastically reduced in recent Plasma generations. How long have you had the Guide displayed on the TV for the 'burn-in' to occur?

 

[spamstew]

That is odd... You should not experience any type of burn-in with a projection tv. How old is the TV and how much TV do you watch in a week? You bulb might be failing.

 

[veryoldschool]

I had my Sony RPTV burn-in BUT it had CRTs. I my knowledge LCD TVs don't burn in. CRT & plasma can, but not LCD.

 

[hasan]

I had my Sony RPTV burn-in BUT it had CRTs. I my knowledge LCD TVs don't burn in. CRT & plasma can, but not LCD.

Neither will a DLP. I couldn't tell from the post whether this was a RPTV with guns (which will burn in), or just what he was using.

If he is using a GUN type tv, it is also subject to video distortion due to magnetic fields. The discoloration at the corner he was referencing is a common symptom of magnetic distortion and/or the need to degauss the projector.

Move any speaker or other magnetic device away from the tv.

Turn the TV off and on a few times (it will begin to degauss itself)

This is only for a CRT/Gun based TV

 

[veryoldschool]

Neither will a DLP. I couldn't tell from the post whether this was a RPTV with guns (which will burn in), or just what he was using.

If he is using a GUN type tv, it is also subject to video distortion due to magnetic fields. The discoloration at the corner he was referencing is a common symptom of magnetic distortion and/or the need to degauss the projector.

Move any speaker or other magnetic device away from the tv.

Turn the TV off and on a few times (it will begin to degauss itself)

This is only for a CRT/Gun based TV

I forgot about DLP [sorry]. What happens when the color wheel quits? :lol:
I googled & his is a LCD RP. Could it be dirt?

 

[moorhead99]

HDTVoice.com has several posts regarding Sony rear projection TV's
with a "yellow blob" problem.

 

[hasan]

I forgot about DLP [sorry]. What happens when the color wheel quits? :lol:
I googled & his is a LCD RP. Could it be dirt?

I think that's what my service contract is for :hurah: (color wheel), and I have a spare lamp behind the tv in a box. My lamp has about 3000 hours on it so far. More seriously, one of the considerations I mulled over when I got my Sammy DLP was the life of the bearings in the color wheel motor. Now it's no longer a "consideration", it's a full fledged "experiment"!:sure:

I had the same thought (dust) once you said it was LCD....there certainly shouldn''t be anything resembling burn in. I don't know the "mechanics" of it, but if I had a speaker magnet sitting very close to the projector, I wouldn't be above moving it around a bit...although without the gun, I don't see how it would matter.

 

[tyrap]

HDTVoice.com has several posts regarding Sony rear projection TV's
with a "yellow blob" problem.

Here is a link to a yellow blob problem.http://www.hdtvoice.com/voice/showthread.php?t=29579&goto=nextoldest

 

[bonscott87]

The preset is set to Vivid, which the manual describes as "enhanced picture contrast and sharpness", but I have the contrast setting itself dialed down to a little over half for the Vivid preset. ( I spent quite sometime with the calibration DVD from CC when I bought this TV, plus I don't like a lot of color bleed through).

OUCH, turn "vivid" off right now! Vivid is typically used for display models in stores and is what is called "torch" mode. You will burn in very quickly.
First get that vivid off.
Then both contrast and brightness should be darn near off or waaaaay under 50.
Sharpness also should be at 0 because it doesn't actually sharpen anything, it creates more jaggies and can increase pixelization on SD channels.

This is the biggest cause of burn in, too bright contrast and brightness and/or using the factory preset torch mode. When I first got my HDTV is was the very first thing I did, get rid of torch mode.

And do what the calibration disks have you set. It may seem a bit "dark" or whatnot at first but it's like seeing TV for what it's supposed to look like for the first time after decades of watching it the wrong way. You'll get used to it.

 

[veryoldschool]

if I had a speaker magnet sitting very close to the projector, I wouldn't be above moving it around a bit...although without the gun, I don't see how it would matter.

That would be a very good speaker to have the magnet bend light!

 

[jcurrier31]

It may sound stupid and I don't even think it is possible on your TV but make sure you don't have any unshielded magnets (speakers, ETC) near that part or any part of your TV.

 

[veryoldschool]

OUCH, turn "vivid" off right now! Vivid is typically used for display models in stores and is what is called "torch" mode. You will burn in very quickly.
First get that vivid off.
Then both contrast and brightness should be darn near off or waaaaay under 50.
This is the biggest cause of burn in, too bright contrast and brightness and/or using the factory preset torch mode. When I first got my HDTV is was the very first thing I did, get rid of torch mode.

If this were a CRT, I would agree. With my new Sony Bravia LCD, vivid is a sharper image [in the manual], But being "old school" I always turn down what I can [too many years with CRTs, old dog thing].
LCD "only" burns out the bulb, right?

 

[cohbraz]

I think that's what my service contract is for :hurah: (color wheel), and I have a spare lamp behind the tv in a box. My lamp has about 3000 hours on it so far. More seriously, one of the considerations I mulled over when I got my Sammy DLP was the life of the bearings in the color wheel motor. Now it's no longer a "consideration", it's a full fledged "experiment"!:sure:

I had the same thought (dust) once you said it was LCD....there certainly shouldn''t be anything resembling burn in. I don't know the "mechanics" of it, but if I had a speaker magnet sitting very close to the projector, I wouldn't be above moving it around a bit...although without the gun, I don't see how it would matter.

Color wheels have gotten much, much better over the past few years. Not near as many fail as they did in the first generations. The Samsung sets have a color wheel that is sealed very well, very difficult for dust to enter. Also helps keep dust from sticking to the wheel itself which would result in a poor picture.

 

[veryoldschool]

It may sound stupid and I don't even think it is possible on your TV but make sure you don't have any unshielded magnets (speakers, ETC) near that part or any part of your TV.

While I would say this is good practice, we would be talking about a magnet bending light waves and we're not in a physics lab.

 

[veryoldschool]

I'm just as guilty, but what was this thread's topic? Oh yeah, a LCD RPTV.

 

[marksman]

I have a 65" Hitatchi RPU and burn-in is a real possible problem, especially if you keep the default contrast settings.

 

[spivey]

Thanks for all of the response. No, this is not a CRT, and there are not any speakers around the TV. After looking at the settings some more, the input that had Vivid on was the VCR input, and we hardly ever use that. None the less, I have turned down the factory settings (although not all are under 50/ halfway); so I'm going to go through all the settings again.

I looked at the post at HDTVoice.com and there is a link to the sony site showing that yellow blob, but that's not whats happening here. It looks like something a magnet would do to a CRT, but the yellow is around the edge of the upper right corner. Here are 2 pictures of the test patterns from the CC cd. You can see a vertical line a little in from the right. Is that from the black bars when watching HD 4:3?

Also the guide ghosting went away after I had it on the VCR input for awhile, but came right back when I switched to the HR20. Strange.