Build Your Own Arcade Controls Forum
Main => Monitor/Video Forum => Topic started by: DaveJ-UK on May 01, 2005, 02:44:27 pm
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I just picked up a JVC GD-V425PZW 42" plasma monitor which has significant burn in.
I'm hoping (but doubtful) that I can remove or reduce the amount of burn in, or visibility of burn in?
I know you can recover "stuck" pixels on an LCD by displaying pure white, then black, then white, etc. over and over, but can the same thing -or anything else- be done for a plasma?
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i belive that a service and a re-gassing can solve the problem to a fair degree. although reports have been that not all the screen burn is removed.
maybe someone else can confirm or .....erm unconfirm.
personally if i knew they was some screenburn...... i would still "see" it after it was removed. but im just pernickity.
gb
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Thanks for the reply.
Being a bit of a tight wad, and having that Do It(Everything) Yourself spirit, I'm not too keen to pay someone else to work on it.
What do you mean by re-gausing? I didn't think plasma's were effected by magnetic fields...
Any good resources out there specific to plasma's? I haven't had much luck Googling.
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He said Regassing. Not re-gausing. Its removing the gases that are contained within the plasma cell, which make it do its magic...... then replacing with new. ;)
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I heard you could just display a black image for a while on the screen and it goes away. I think I read that on a board somewhere.
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the only remedy to plasma burn is to replace the gas.
Displaying black will do nothing. Sorta like sending a black image to the arcade game that is burned.. it stays burned.
The only "user" fix is to display an image negative to the burn to burn the OTHER pixels (and colors) to the same level.
Eg. Assume your screen is like this
oooo
oooo
oooB
Where the bottom right has a burned in image that has reduce the blue component. (e.g. showing a full white screen shows you a YELLOW tint to the pixel)
Your only solution is to produce an image like the following:
wwww
wwww
wwwY
This way it will not only "burn off" some of the red and green gasses in the burned in pixel to compensate for the decreased amount of blue gas (thus making the pixel white-balanced again when RGB is applied to it) but also to burn-in ALL of the other pixels on the screen to reduce their brightness equally to the now burned in bottom right pixel.
Obviously the side effect to this is you end up reducing the overall brightness of the set, but it's the only thing you can do to compensate. Of course burn in, other than black bars from running different modes typically is not a single "pixel" you can compensate for with some fancy graphic overlay.. it's various tint levels caused by a Headline news crawl, or a transparent station logo or something that isn't easy to adjust.
This is the problem with Plasma. Newer sets are supposed to be less succeptable to burin but still do.
Old CRTs do this all the time, but was not really noticed (except in arcade machines) because computer graphics wern't prevelant, nor were station logo "bugs" back in the 80's But I can pick up any used home TV set and look at the pixel stripes and easily determine how long the set was used by looking for an overall screen burn.
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That's great, thanks for that.
I'd rather live with the burn in myself (it's not TOO bad), but I'd definitely re-GAS (lol@me) if I knew where to get it done.
Can I just walk into any Dixons type electrical store and ask about this, or do I need to talk to the manufacturer (JVC), or something else?
Any idea what kind of cost I'm looking at?