I would like to help but I don't know exactly what this problem is. I don't notice it on my XBR960, nor any of the other sets mentioned above.
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Problem with TV, or setup???
I have been *window shopping* for a replacement TV for my living room because I have been experiecing a problem...well, not so much as a "malfunction", but more of an irritating defect that drives me so crazy, I rarely even watch movies on it anymore because of it.
I guess what I want to know is....is the problem my TV, OR my setup? I just do NOT want to purchase another TV only to find out the problem is something else.
Maybe I should have posted in the "structured wiring section?", I don't know, but here goes if anyone can help me at least "isolate" the problem, it doesn't even matter if it gets fixed.
Bought it '03, my KV-36FS100 sat on my living room floor for almost a month (past the return period). During that time, i had a DVD player hooked up via 3 foot component cables and noticed no ill effects.
Finally gathered 4 people to "hoist" my TV up into its cubby hole above the fireplace.
Since that time I noticed during dark viewing conditions and black scenes, the vertical brightness is not uniform. Now I know CRTs do not have uniform brightness accross the screen (so I have read), but I have never seen this before. The top of my screen is "whitish" and gets progressivly darker the further down the screen until about 1/3-1/2 way down it is finally "true black". Being a Sci-Fi buff, it REALLY sticks out like a sore thumb.
Calibration via DVE actually exaggerated the problem. I eventually went into the service menu and had to back off the sub contrast/sub brightness to where the top of the screen was "crushed" to black. That works okay for nighttime movie watching, but daytime viewing leaves the set "Dim", and playing Xbox on it is difficult because all the shadow details are crushed to black.
I *belive* the problem exists on all inputs, BUT...RF and composite are mimimal, if not, non-existant and its fine. However, S-video and Component the problem is DRAMATIC.
It bugs me that I don't recall seeing it in the first 30 days, but maybe I just didn't have it dark enough in the room to notice? OR...what really concerns me, is its a problem elsewhere and a new TV WON'T fix it, and I will have wasted money!
The current setup has total cable length runs of about 33'. I am using 3' AR cables for "jumpers", and the inwall cable is from bluejeanscable.com . So I don't have HIGH quality cables, but I don't have bottom of the barrel, either.
I have tried different jumpers to no avail. Since my TV is so far away, I was thinking okay maybe its an odd "ground loop problem", so I went so far as to take a source, plug it in to a UPS, and DISCONNECT the UPS from the wall, completely isolating it from the power-that didn't help either.
It doesn't matter what the source device is, its still noticable on S-Video and Component inputs. But what is odd, is if I turn off the source device (still plugged in), OR disconnect the source device, the screen goes to a perfectly uniform black.
So.....is it my TV, or something else?
HELP! i am thinking of buying a new TV, but if it doesn't fix this problem I'll feel like it was wasted $$$.
Thanks to ANYONE who can help!
-Alan
I guess what I want to know is....is the problem my TV, OR my setup? I just do NOT want to purchase another TV only to find out the problem is something else.
Maybe I should have posted in the "structured wiring section?", I don't know, but here goes if anyone can help me at least "isolate" the problem, it doesn't even matter if it gets fixed.
Bought it '03, my KV-36FS100 sat on my living room floor for almost a month (past the return period). During that time, i had a DVD player hooked up via 3 foot component cables and noticed no ill effects.
Finally gathered 4 people to "hoist" my TV up into its cubby hole above the fireplace.
Since that time I noticed during dark viewing conditions and black scenes, the vertical brightness is not uniform. Now I know CRTs do not have uniform brightness accross the screen (so I have read), but I have never seen this before. The top of my screen is "whitish" and gets progressivly darker the further down the screen until about 1/3-1/2 way down it is finally "true black". Being a Sci-Fi buff, it REALLY sticks out like a sore thumb.
Calibration via DVE actually exaggerated the problem. I eventually went into the service menu and had to back off the sub contrast/sub brightness to where the top of the screen was "crushed" to black. That works okay for nighttime movie watching, but daytime viewing leaves the set "Dim", and playing Xbox on it is difficult because all the shadow details are crushed to black.
I *belive* the problem exists on all inputs, BUT...RF and composite are mimimal, if not, non-existant and its fine. However, S-video and Component the problem is DRAMATIC.
It bugs me that I don't recall seeing it in the first 30 days, but maybe I just didn't have it dark enough in the room to notice? OR...what really concerns me, is its a problem elsewhere and a new TV WON'T fix it, and I will have wasted money!
The current setup has total cable length runs of about 33'. I am using 3' AR cables for "jumpers", and the inwall cable is from bluejeanscable.com . So I don't have HIGH quality cables, but I don't have bottom of the barrel, either.
I have tried different jumpers to no avail. Since my TV is so far away, I was thinking okay maybe its an odd "ground loop problem", so I went so far as to take a source, plug it in to a UPS, and DISCONNECT the UPS from the wall, completely isolating it from the power-that didn't help either.
It doesn't matter what the source device is, its still noticable on S-Video and Component inputs. But what is odd, is if I turn off the source device (still plugged in), OR disconnect the source device, the screen goes to a perfectly uniform black.
So.....is it my TV, or something else?
HELP! i am thinking of buying a new TV, but if it doesn't fix this problem I'll feel like it was wasted $$$.
Thanks to ANYONE who can help!
-Alan
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Well sense you say it worked fine before you put it in the cubby above the fireplace i would be concerned that the heat from the fireplace is overheating the tv and may have already caused damage. Ive never looked into problems cause by puting a tv by a fireplace but i would never do it.
Well sense you say it worked fine before you put it in the cubby above the fireplace i would be concerned that the heat from the fireplace is overheating the tv and may have already caused damage. Ive never looked into problems cause by puting a tv by a fireplace but i would never do it. Heat + Electronics = Bad idea
I would also be concerned about the heat.
First, thank you for replying! I'm all ears in trying to figure this out!
Honestly, I never gave the fireplace much thought, and suppose it is a possibility, but the fireplace is ventless, and rarely used. When it is operating, not much heat makes it up there as there is considerable distance between the top of the fireplace and the built-in cubby above the mantle for the TV.
FWIW I also have two 24" ers from the same line (KV24FS100) that do not exhibit this behavior, but I haven't tried connecting one in place of the 36" because the 36" is too big to move unless its on a permanent basis (replaced).
Thanks again, and keep em coming!
Maybe later I'll try to get a screenshot of it-don't know if it will turn out though as the room has to be dark to see the problem, but then boy do you see it...
-Alan
-EDIT- Don't think it will help, but another tidbit of info: If I put the TV in 16:9 "squeeze mode" then the top of the screen is no longer brighter, BUT....the top of the 16:9 window is, and gets progressivly darker the further down the 16:9 window is.
Honestly, I never gave the fireplace much thought, and suppose it is a possibility, but the fireplace is ventless, and rarely used. When it is operating, not much heat makes it up there as there is considerable distance between the top of the fireplace and the built-in cubby above the mantle for the TV.
FWIW I also have two 24" ers from the same line (KV24FS100) that do not exhibit this behavior, but I haven't tried connecting one in place of the 36" because the 36" is too big to move unless its on a permanent basis (replaced).
Thanks again, and keep em coming!
Maybe later I'll try to get a screenshot of it-don't know if it will turn out though as the room has to be dark to see the problem, but then boy do you see it...
-Alan
-EDIT- Don't think it will help, but another tidbit of info: If I put the TV in 16:9 "squeeze mode" then the top of the screen is no longer brighter, BUT....the top of the 16:9 window is, and gets progressivly darker the further down the 16:9 window is.
Quote:
This might be an underscan issue, Im not familiar with this model but i would look into adjusting the controls that deal with overscan and underscan in the service menu. I know with my tv (Sony KV-30HS420) when i set my MID settings incorrectly i get a white glow because its like a layer above the first layer of the picture if that makes any sense.
| Originally Posted by FirebirdTN -EDIT- Don't think it will help, but another tidbit of info: If I put the TV in 16:9 "squeeze mode" then the top of the screen is no longer brighter, BUT....the top of the 16:9 window is, and gets progressivly darker the further down the 16:9 window is. |
Quote:
That makes PERFECT sense, actually, because that is the best way to describe my problem.
I have calibrated the "overscan" with DVE and it really didn't help. But if I purposely reduce the overscan to where the entire image is visible on the screen, then yes there is a bright line at the very top of the picture (that is normally not visible since it is "off screen" because of overscan). Its almost like that area is reflected down the top 1/3rd of the screen.
Maybe I am just being too nitpicky as it is not noticable during daylight, but nighttime movie viewing it is distracting as heck.
-Alan
| Originally Posted by nick2003 This might be an underscan issue, Im not familiar with this model but i would look into adjusting the controls that deal with overscan and underscan in the service menu. I know with my tv (Sony KV-30HS420) when i set my MID settings incorrectly i get a white glow because its like a layer above the first layer of the picture if that makes any sense. |
I have calibrated the "overscan" with DVE and it really didn't help. But if I purposely reduce the overscan to where the entire image is visible on the screen, then yes there is a bright line at the very top of the picture (that is normally not visible since it is "off screen" because of overscan). Its almost like that area is reflected down the top 1/3rd of the screen.
Maybe I am just being too nitpicky as it is not noticable during daylight, but nighttime movie viewing it is distracting as heck.
-Alan
I agree with the others, it might be an overscan issue.
What percentage of overscan do you have? On a CRT i would leave it at 5% on each side to make up for the geometry issues that CRT's have and also because thats what pretty much every programming material is optimized for. Also look up the MID settings for your set and try adjusting till the white is gone. The layer above the main picture (MID) is diffrent then adjusting the main overscan control, If both settings aren't lineing up correctly then you will get the white glow. You may have threw off the MID layer when adjusting the main overscan.
Thank you again nick2003, I do really appreciate the efforts!
I am familiar with the service menu, and have made minor adjustments to correct geometry errors, and the sub contrast/sub brightness mentioned above to try and deal with this problem, but I am unfamiliar with the "MID" settings; what are they/is it?
-Alan
I am familiar with the service menu, and have made minor adjustments to correct geometry errors, and the sub contrast/sub brightness mentioned above to try and deal with this problem, but I am unfamiliar with the "MID" settings; what are they/is it?
-Alan
The MID settings you want are the ones that adjust the layer on top of the main picture, There are MID settings for sharpness type stuff also. Im not familier with your tv so they may not be there or could even be called something diffrent. Do you have a service menu manual or anything for your tv?
Yes, I do have the service manual. I'm an electronics tech by trade, but video is not my forte'.
By the way, this is a plane jane bottom-of-the-line WEGA; not a HD set.
-Alan
By the way, this is a plane jane bottom-of-the-line WEGA; not a HD set.
-Alan
Like Nick said, I would check out the MID settings in the service menu.
There are no mentions of, nor can I find any settings in the SM related to MID.
I just don't know..maybe I am just being too nitpicky as the problem only exhibits itself under these conditions:
Completely DARK room (no ambient light)
Dark scenes
S-Video/Component input
So, maybe Its just me. But the thing is, I have 3 other TVs in the house, 2 of which are Sonys from the same era/line and they do not exhibit this behavior.
I just wish I knew wihtout any shadow of a doubt it was the TV, that way I'd just replace it and be done with it.
-Alan
I just don't know..maybe I am just being too nitpicky as the problem only exhibits itself under these conditions:
Completely DARK room (no ambient light)
Dark scenes
S-Video/Component input
So, maybe Its just me. But the thing is, I have 3 other TVs in the house, 2 of which are Sonys from the same era/line and they do not exhibit this behavior.
I just wish I knew wihtout any shadow of a doubt it was the TV, that way I'd just replace it and be done with it.
-Alan
If it doesn't show up on your other TV's with the same equipment its the tv, Ive never heard of more then one device causing a problem like that and it is highly unlikely. I would suggest buying a new tv locally (so there is no return shipping) and if your unhappy with it just return it sense most stores like best buy have a 30 day return policy.
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