I found this monitor at the dump right when i was in the need of one.
The monitor is not smashed and works fine.
The lack of "LED" stickers on it tells me that it's got CFL in it.
One thing about it is that it's displaying colors wrong.
It's like there's these very rough transitions between various shades of colors, almost as if there's only about 32 colors.
Also every second vertical line of pixels is darker where the image is also dark.
The only example to describe this i can think of would be maybe a compressed image.
Now that i think of it i also have a TV that also displays colors in the exact same way and that TV also happens to have CFLs in it.
I remember something similar to this happening on my SONY laptop, it had a failing CFL tube in it and would occasionally display the image wrong, i bodged a LED backlight from another screen in it and it's been working fine ever since, could this be related?
One bad thing about this screen is that it's a pain to take apart, the plastic from the back comes off easily but the PCB is behind a sheet metal frame that is attached to the LCD assembly, this prevents me from easily checking the caps.
Another thing is that the aforementioned TV does the same thing but all the caps in that one are good.
My guess is that the CFLs are old and the HV drivers are working overtime and in turn end up causing EMI, which then messes with the image processing.
I can kind of sort of try to take a picture of the screen to show what it looks like.
Any ideas?
The monitor is not smashed and works fine.
The lack of "LED" stickers on it tells me that it's got CFL in it.
One thing about it is that it's displaying colors wrong.
It's like there's these very rough transitions between various shades of colors, almost as if there's only about 32 colors.
Also every second vertical line of pixels is darker where the image is also dark.
The only example to describe this i can think of would be maybe a compressed image.
Now that i think of it i also have a TV that also displays colors in the exact same way and that TV also happens to have CFLs in it.
I remember something similar to this happening on my SONY laptop, it had a failing CFL tube in it and would occasionally display the image wrong, i bodged a LED backlight from another screen in it and it's been working fine ever since, could this be related?
One bad thing about this screen is that it's a pain to take apart, the plastic from the back comes off easily but the PCB is behind a sheet metal frame that is attached to the LCD assembly, this prevents me from easily checking the caps.
Another thing is that the aforementioned TV does the same thing but all the caps in that one are good.
My guess is that the CFLs are old and the HV drivers are working overtime and in turn end up causing EMI, which then messes with the image processing.
I can kind of sort of try to take a picture of the screen to show what it looks like.
Any ideas?
Attached Files
But today, I’m making an exception here. Why? No idea. Perhaps only because the repair details are still “fresh” in my head… which is ironic, given this is a 16 year old monitor that hardly anyone will care about today. It is new to me, though. 
I picked it up last November from someone on my local Craigslist. It wasn’t very close to where I live, but was close to a family friend that I had to go visit anyways. So after watching the posting on Craigslist for a few weeks and seeing it getting...
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