On Sat, 17 Jan 1998, @-- ReeD ->- wrote:

> On Sat, 17 Jan 1998, Xiamin Raahauge wrote:
> 
> > I'm using an Apple Multiscan 15 on my NetBSD box (Q650) in black and white
> > mode. As far as I can remember back the monitor has always been a little
> > fritzy, sometimes it looks as if it's switching gamma modes randomly, but
> > usually a good smack to the side clears it up. Lately it's started to
> > switch to a blue shade of things, while black is still black as far as I
> > can see, the "white" is a light greenish blue. Up until today it would
> > only stay there for a few seconds before it switched back. Now it doesn't
> > seem to want to change. Does anyone out there have any ideas as to what
> > could be the trouble? Or does anyone have an idea as to how to fix it?
> 
> Heh, well I got an 8-year-old AppleColor High Resolution RGB 14" monitor 
> on my IIsi and the same on my IIfx and the one on the IIsi went pink and 
> the one on the IIfx went yellow.. the IIsi one finally died completely 
> after a year of pink, and the IIfx one still works.. I find lightly 
> tapping the monitor in the back to have worked :) It would go back normal 
> sometimes for less than a minute, sometimes for days, and then it'd jump 
> back to bening yellowish. :) Now those monitors are old (we FINALLY 
> bought a G3 with a 17" AppleVision so now I have a modern-day computer! 
> Although those old Mac IIs were rough&tough machines, very well built, 
> beautioful feel, plus NetBSD works on the IIsi, not on the G3 :))

I ran into problems w/ my 14" monitor. It turned out to be a solder
problem. On the PCB which connects to the tube, the solder joints for the
connector had eroded. A little touch-up w/ a soldering iron, and it worked
great. If a slap on the side works, sounds like it's a connection problem.
So you might look for weak solder links (*).

(*) remember that video monitors generate HIGH voltages, and often involve
capacitors which can store these voltages for a while. Be sure to either
work with the thing unplugged, or be VERY careful. You're at your own
risk.

Take care,

Bill