22 May
1999
22 May
'99
8:57 a.m.
Finally, it occured to me that I had flipped the
chassis over to put
some new rubber feet on the bottom and wondered if I could have shifted
something, like a loose screw or nut. So I removed the motherboard and
looked underneath. LO and BEHOLD! A previous owner had replaced an
LS series chip and its socket and had not CUT OFF the excess leads on
the bottom of the board!!! When I shifted the machine, it pushed the
leads against the bottom of the chassis effectively grounding them!
Once those were clipped and a piece of anti-static foam inserted beneath
the motherboard, the machine now talks to the terminal FAR more reliably
than before.
Um... I thought that anti-static foam was conductive? Wouldn't that
be bad? Maybe I'm wrong.
Bill Sudbrink