19 Feb
2003
19 Feb
'03
1:20 a.m.
--- "Clint Wolff (VAX collector)" <vaxman(a)earthlink.net> wrote:
Hi John,
Can't help you with your current problem, but I recall reading the
L0004 had a problem with the RS232 receiver chip. If the VAX was
powered down while the console was still powered up, it would kill
the chip.
Hmm... I won't say that _can't_ happen, but I ran a couple of
11/750s from 1984-1993 and it never _did_ happen to us. We
typically used a CiTOH 101 sitting right on top of the CPU with
a 2m cable, if that makes any difference.
IIRC it is a 1488 or 1489 chip on the board. I think
there
is only one of each, but maybe there are two (one for console, one
for TU58). Replacing the dead one will restore your console...
Don't forget to use a socket!
-ethan