Re: CBM900 keyboard

From: Bo Zimmerman <>
Date: Thu, 03 Jul 2014 22:34:07 -0500
Message-ID: <>
Since I've never gotten a video signal out of my own C900, I can confirm 
NOTHING.  However, Claus Schoenleber, from whom the C900s came, assured 
me, when I asked explicitly, that a PC keyboard works fine with the machine.

Again, I've never investigated due to the other concerns, but I would 
imagine cataloging the chipset should answer the question; at least I 
can't imagine them going for PC keyboard compatibility without also 
using the off-the-shelf chips to do so.

This is all speculation and second-hand knowledge, but for what it's 
worth, there you go.

- Bo

On 7/3/2014 8:01 AM, wrote:
> Hello!
> Is there any information available on the CBM900 keyboard protocol? Is 
> it by any chance similar to the one used by Amiga 2000? I can't seem 
> to find any information on that topic. I have also looked at the 
> schematic, and maybe I am blind but I cannot even find the keyboard 
> port there :-(
> I am considering buying a machine that is missing the keyboard so I 
> need to know if I can interface some keyboard to it, otherwise it 
> would be quite pointless (unless some good soul lends me a keyboard of 
> course ;-))
> Regards,
> Michau.
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Received on 2014-07-04 05:00:03

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