Re: AppleColor RGB Monitor --- Problem

["Charlie" <charlied@NOSPAMbboard.com>]

"Quadrajet1" <quadrajet1@aol.com> wrote in message
20030929172746.00233.00000032@mb-m27.aol.com">news:20030929172746.00233.00000032@mb-m27.aol.com...
> << "Jeff Thomas" <a2forever@usa.net> wrote in message
> 3F668CD9.29C7B121@usa.net">news:3F668CD9.29C7B121@usa.net...
> > I have "AppleColor RGB Monitor", Model no. A2M6014X and manufactured in
> > December 1987, connected to my Apple IIGS. When the monitor is first
> > turned on, it operates properly, and as it heats up, so does the
> > brightness until everything becomes blurry and unreadable. I tried
> > adjusting contrast and brightness dials with no improvement. I heard
> > that this is common problem with this particular monitor. Does anyone
> > know how to fix it and what is wrong?
> >
> > Any help is greatly appreciated as these monitors are hard to find in
> > New Zealand.
>
> I have exactly the same problem with my AppleColor RGB Monitor, Model no.
> A2M6014 (no X) manufactured August 1987.  I too heard that this is a common
> problem but the only thing else that I heard was that it was caused by bad
> (old) capacitors.  Unfortunately, I don't know which ones.  I have inspected
> mine (mainly the electrolytics) and don't see anything physically wrong.
Other
> than replace every one, I don't know what to do.
>
> Charlie  >>
>
>   If you don't mind working inside your monitor while it's on you should be
> able to find the problem fairly simply.  Find a can of "Freeze Spray" at you
> local electronics dealer. I am sure radio Shack has it, but it'll cost you
> more.  When the monitor warms up and starts to brighten up, hit a small shot
of
> spray (with the supplied ube of course) at each capacitor, until the problem
> goes away.  Do the warm up / cool down cycle a few times to be sure you found
> the right part.  You can also speed things up by warming the monitor PCB by
> using a hair dryer on High Heat. You may want to hit some of the other
> components just in case the caps are good.  About the only place you don't
want
> to spray is the neck of the tube where the filament heater is.
>
> Raymond

An excellent suggestion.  I will give it a try.
Thanks,

Charlie