[comp.sys.mac.hardware] Flakey mac+

carlton@cs.berkeley.edu (Mike Carlton) (04/30/91)

A friend has a mac+ with a flakey monitor/analog board that I'm trying 
to at least diagnose and maybe fix.  The symptoms are something like this:

The monitor display normally won't appear at all (no pixels lit).  But,
if you lie the machine down with the analog board down, everything
works fine -- the display appears.  As the machine is tilted from the
vertical to the horizontal, the image will often appear when the
machine is at an angle of about 45 degrees.

Secondly, there is a steady, audible clicking coming from the area of
the CRT neck.

It appears to be a bad connection (possible due to a bad solder joint?),
but I don't know where to look.

Any suggestions?  

thanks,
--mike
Mike Carlton	carlton@cs.berkeley.edu