Date   : Mon, 12 Jan 2004 01:00:25 GMT
From   : Pete Turnbull <pete@...>
Subject: Re: Host adapter Issue D

On Jan 11, 21:43, Mark Usher wrote:
> Just been looking at my non-reponsive Issue D Acorn Winchester Host
> adapter.
> On the reverse of the board is a single "mod" - ie. Wire link from
one
> point to another and the original track link has been broken.
> The original layout takes IC7 (74LS138N) PIN 5 to IC6 (74LS138N) PIN
15
> - modified to go to IC6 PIN 13.
>
> Does anyone else have this mod on their board? Ie was it a factory
mod.
> Can't see anything about it in the service manual.

That changes the interface addresses from FC40-FC43 to FC48-FC4C.
 Maybe that's why it's not responsive!  Perhaps someone modified this
to work in a multiple-adaptor system.

-- 
Pete                                           Peter Turnbull
                                               Network Manager
                                               University of York