UltraLite whine

Sat, 22 Jul 1995 20:11:40 -0500 (CDT)


Just got my first UltraLite (17-01) and am very pleased with it.

The first day it was completely silent, but the second day it suddenly
developed a high-pitched whine (I estimate about 3000 Hz), seemingly in the
power supply area, somewhere around the screen contrast control. The noise
seems very sensitive to pressure on the case--gentle pressure in just the right
way can sometimes make it stop. Conversely, it seems worse with the machine on
my lap. It is worse at high screen brightness, and twitches slightly, then gets
better as, at boot time, the screen goes from bright to dim (I have it set up
that way to save battery life). Today it is quiet again.

Has anyone else experienced this?

Mark Shields