VAX 11/750 question

From: pavl <pzachary_at_sasquatch.com>
Date: Sat Feb 22 09:36:01 2003

I had a 11/750 that printed garbage to the console, well actually it
just wouldn't do anything but 38,400, I tried replacing the L0004, but
the problem persisted so I just lived with it. You might check
speed/parity other than what it's set for...

Pavl_

"Clint Wolff (VAX collector)" 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. 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 Sat Feb 22 2003 - 09:36:01 GMT