VAX 11/750 question

From: Clint Wolff <vaxman_at_earthlink.net>
Date: Wed Feb 19 08:44:00 2003

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. 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...

Regards,
Clint

On Mon, 17 Feb 2003, John Willis wrote:

> I just received a new board set for my VAX 11/750, which includes
> an L0004 to replace the one I had before, which would send output
> to the console, but wouldn't read input from the console. Now, however,
> when I put in the new L0004, it prints garbage on the console. What's
> more,
> the _old_ L0004 doesn't print anything on the console anymore. Any
> ideas?
>
> TIA,
> John W.
Received on Wed Feb 19 2003 - 08:44:00 GMT