> I believe that this is a result of poor manufacture and that the two
> polarizable sheets which form the screen have minimally separated and
> are actually leaking a small amount of voltage which causes heat which
> causes more separation which causes more leakage, etc. I'm not certain
> about t
Tom and Lisa P wrote:
>
> I hve several Duo 280 screens that go dark in the corners after the
> screens are on for some time. The last theory I heard about this
> problem was that it was the backlight going out over time.
>
> To confirm this, I tried an experiment. I removed the backlight and
>
I wrote:
>>I wonder if resealing the edges would help at all? I'd imagine completely
>>'dehumidifing' it first though would be a good idea, perhaps in a vacuum
>>chamber or something. No, I don't have a vacuum chamber, I'm just
>>thinking here! :-)
then Mad Dog wrote:
>Well, if its water and air,
Mad Dog wrote:
I think the corners are getting "stuck" and not relaxing back into
transparency. I dont recal seeing old images. My next wild guess is
to replace several capacitors on the LCD power board and see if that
works.
I know it ain't the backlight, and I seriously doubt it's the power
boa
Mad Dog wrote:
>I think the corners are getting "stuck" and not relaxing back into
>transparency. I dont recal seeing old images. My next wild guess is
>to replace several capacitors on the LCD power board and see if that
>works.
I know it ain't the backlight, and I seriously doubt it's the p
I have a 270C that has this problem, sometimes. Does your screen
also have problems with the image sticking on
the screen. By this I mean that it seems to burn itself into the
screen and is still visible after the machine
is turned off and also the old image is still there when the machine
is re
I have a 270C that has this problem, sometimes. Does your screen also have problems
with the image sticking on
the screen. By this I mean that it seems to burn itself into the screen and is still
visible after the machine
is turned off and also the old image is still there when the machine is r
