PCW 9512 - adding a second drive (EME-232)

[gw0udm]

Hi 

I have a PCW 9512 and I want to add a 3" drive as Drive B. I have an EME-232 drive, but so far as I can see they are all hard wired as drive A and despite looking at the service manuals etc I can't see how to change the configuration. If I just connect it to the second connector then it doesn't work presumably because it's clashing with the other drive.

The service manual for the 9512 is vague, and does show what appear to be a link or switch which connects to the relevant drive select line but there is no information about changing it.

I know that it was possible to have two drives fitted and I've seen pictures of a 9512 with two drives but I've never actually seen on in real life. It must be possible though.

Any advice?

James