16X9 TV Standard picture viewing problem. (1 Viewer)

[Justin Woodwell]

I have a Mitsubishi widescreen TV. When I am watching anamorphic discs the TV plays them back fine. But lately I have discovered a strange phenomenon when I have the TV set to regular standard mode (non anamorphic/widescreen). At certain times in standard mode one gray bar on one side of the screen will be significantly larger than the other one. Instead of 50/50 in terms of their equality on the sides of the TV picture they can get up to 70/30. When I called my service tech to ask them about the problem they were stumped. I noticed that the change happens slowly. This morning they were pretty equal but now its more along the lines of 70/30. Anyone have any ideas why or how this can happen? Thank you in advance!

 

[David_Giles]

Justin,my sony 16:9 set does this as well,but not to worry,the bars are supposed to move to help prevent burn in.

 

[Steve Schaffer]

I have a Sony and haven't noticed mine doing this but I have never left it in this mode for more than 20 minutes or so. Maybe it takes a lot longer for this to be noticeable. I do know that Mitsubishis are supposed to move the 4/3 picture side to side a bit to equalize burn in.

 

[Justin Woodwell]

What exactly do you mean by "equalizing the burn in"?

 

[Kimmo Jaskari]

If you use a 16:9 set with a 4:3 image in the center for much of its lifetime, eventually you will start seeing that even with a 16:9 picture you will see the "shadow" of the bars on the sides, they will have been burned into the phosphor of the display tube(s).
That's why this is a good thing (assuming the image doesn't distort when it moves, which might indicate a problem with the set, I guess ) that the image moves back and forth on the screen to at least keep those sharply outlined bars from burning in on the sides.
Personally, on my 16:9 direct view TV I only use the 4:3 mode when viewing... well, material that I respect? Ie, if I'm watching some sitcom or something I tend to use the stretch mode to keep the burn in even but if I'm watching a classic movie in 4:3 I watch it OAR and with bars on the side.

 

[Brent Joye]

I heard of some new sets coming out that only scanned the part of the image being displayed, so you'd never have to worry about burn in. Does anyone know about these? I think I heard it was JVC.

 

[Kimmo Jaskari]

Hmm, then you'd have uneven wear of the TV anyway, and eventually the sides would be brighter than the center cause the phosphors would see less use.

Or am I missing something?

 

[Brent Joye]

I see your point theoretically, but in reality I would guess the uneven wear would be much less because it wouldn't be the static image causing the problem like it does now.