Re: GS Monitor keeps getting brighter

[Silicon Sam <SiliconSam@gmail.com>]

On Aug 12, 12:16 pm, D Finnigan <dog_...@macgui.com> wrote:
> Hi,
>
> My Apple IIgs Apple Color RGB monitor has had a strange problem for over
> a year now: the longer that it is on, the brighter it gets. For the
> first 10-15 minutes, one can compensate by adjusting the brightness and
> contrast, but after about 20 minutes, even having these two set to their
> lowest will not affect the display. The brightness causes all text and
> graphics to become quite blurry. I have already tried opening the case
> and adjusting some of the pots inside, but that only seems to have
> increased the time before the display gets to bright for a bit, and has
> not solve the problem.
>
> Is there anyone familiar with this problem?

  No, but it's simple to diagnose if you are technically inclined.  In
a case like this you need a hair dryer or small heat gun, and a can of
Freeze Spray (with tube).  Between heating with the gun, and chilling
the components, it takes hardly any time to find which component is
faulty.  Could be a cap, transistor or IC component causing it.
Adjustment isn't going to do any good, you need to track down the bad
part.