Re: panic at boot on 4/200

On Wed, Jan 14, 2026 at 6:08 PM Jason Thorpe <[email protected]> wrote:
>
>
> > On Jan 14, 2026, at 2:50 PM, foo bar <[email protected]> wrote:
> >
> > On Wed, Jan 14, 2026 at 5:43 PM Dave McGuire <[email protected]> wrote:
> >>
> >> On 1/14/26 17:13, foo bar wrote:
> >>> Ethernet doesn't work on this board so SCSI is the only boot option I
> >>> have for it.
> >>
> >>   Odd.  AUI power fuse perhaps?
> >
> > The AUI port works fine, it's the other end that's broken. The address
> > decoding / chip select logic doesn't work so it's just a blank space
> > in the memory map.
>
> Do schematics exist for this board?  Is the decoding stuff in a PAL or is it discrete 74LS / 74F parts?

There are no schematics that I know of. There are over a hundred of
PAL & TTL chips on the board so probably both.