Date   : Wed, 11 Jun 2003 05:01:05 +0100
From   : Mike Tomlinson <mike@...>
Subject: Re: Sideways RAM designs

In article <20030605222607.I3540@...>, James
Fidell <james@...> writes

>I have here on my desk an ATPL "Sidewise" sideways ROM/RAM board

The creme de la creme of sideways ROM boards...

>carrying two 6264 chips

... with a RAM upgrade.  Does it have the battery backup upgrade too?

> and 12 ROM sockets.  Without opening a Beeb up,
>it looks like it mounts into one ROM socket (IC51?) and into the socket
>for IC73 (whatever that is).

Unplug the ADC chip and the OS ROM, insert the Sidewise board into the
vacated sockets, then plug the OS and ADC chips back into the same
positions on the Sidewise.

>  We're about to move house and all my
>manuals are boxed up at the moment.

Manual at:
http://bbc.nvg.org/doc/ATPLSidewise.zip

If this doesn't help you identify where to reconnect the broken red wire
on the Sidewise, I can unpack my Beeb and have a look for you.

Mike