[comp.sys.mac.hardware] Mac Plus screen fuzzes out

mmcintos@uvicctr.UVic.CA.UUCP (Mark J. McIntosh) (05/29/90)

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We have a problem which occasionally occurs on our Mac Plus. The Plus
is about a year old, has 2.5 Meg RAM, connected to a LaCie 40 Meg, and
has a recently installed System Saver Mac fan.

Every now and then the Mac "hangs" while in Page Preview in Word
4.00A. During the last occurrence it had been on for about 40 min.
when a Page Preview command caused the problem. Page Preview was set
to two page mode and after the first page was displayed the screen
went fuzzy.  The second page had all its text mushed together and then
the mouse froze.

The fact that the screen shakes and shimmies (its Cosmic Thing) leads
me to suspect a hardware problem. The image is not destroyed like it
would be if the video RAM were being overwritten so I don't think that
is the problem.

Has anyone seen anything like this? Any ideas at all?
_____________________________________________________________________________
Brad Hedstrom, University of Victoria, ECE Dept.
Internet:  hedstrom@sirius.uvic.ca
UUCP:   ...!{uw-beaver,ubc-vision}!uvicctr!sirius!hedstrom