I have a Proview 900W (P/N FV926AFW) 19" WXGA LCD monitor sitting next to me on my desk at the moment. There's a very strage problem with it. When I first bought it home today the screen would come on but after a few seconds the baclight would switch off and I'd be left with no backlight and a very dark display.
I got cheseed off so I took the display apart and disconnected all internal cables leading to the LCD panel and reconnected them, I guess that solved the backlight issue for a while?.
Since the backlight now came on, I could see the panel itself started doing strange things, the display was distorted and starting coming up with random lines.
I reconnected the cables again thinking I may have made something loose, but nothing was loose.... the problem still persisted.
I let it do the distortion thing for a while, in the meantime the LCD was getting warmer (due to the fact it was on) and the problems went away. It's like once the thing is warm it's fine. Now I can't get it to repeat the distorted display and it's been on for a few hours now without an issue.... only thing I've noticed is that the LCD isn't very evenly lit, the top is darker than the bottom of the display, but then I was reattaching the screws etc and noticed the variety of caps in the LCD.
On the video board (i think thats what it's called), the caps are made by YEC.... yuck. None are physically bulging because they dont have vents on them. lol
On the power supply, the caps being used are HEC brand and none seem to be bulging or leaking.... but HEC are a known bad brand so I'm not sure about this.
I don't know what could be wrong, but now the LCD is working like any other normal LCD would (look at the pic with the Windows XP desktop and see what I mean by normal).
What I want to know is why the bottom of the LCD is so bright and the top is darker than the bottom.... how many lights does an LCD have for backlight?
Also could this monitor have bad caps to cause those issues I previously had? Anyway, I have pics enclosed to help show what I'm talking about.
Thanks.
I got cheseed off so I took the display apart and disconnected all internal cables leading to the LCD panel and reconnected them, I guess that solved the backlight issue for a while?.
Since the backlight now came on, I could see the panel itself started doing strange things, the display was distorted and starting coming up with random lines.
I reconnected the cables again thinking I may have made something loose, but nothing was loose.... the problem still persisted.
I let it do the distortion thing for a while, in the meantime the LCD was getting warmer (due to the fact it was on) and the problems went away. It's like once the thing is warm it's fine. Now I can't get it to repeat the distorted display and it's been on for a few hours now without an issue.... only thing I've noticed is that the LCD isn't very evenly lit, the top is darker than the bottom of the display, but then I was reattaching the screws etc and noticed the variety of caps in the LCD.
On the video board (i think thats what it's called), the caps are made by YEC.... yuck. None are physically bulging because they dont have vents on them. lol
On the power supply, the caps being used are HEC brand and none seem to be bulging or leaking.... but HEC are a known bad brand so I'm not sure about this.
I don't know what could be wrong, but now the LCD is working like any other normal LCD would (look at the pic with the Windows XP desktop and see what I mean by normal).
What I want to know is why the bottom of the LCD is so bright and the top is darker than the bottom.... how many lights does an LCD have for backlight?
Also could this monitor have bad caps to cause those issues I previously had? Anyway, I have pics enclosed to help show what I'm talking about.
Thanks.
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