Hi William, I did use the original kybd to trace out the clock and data, most of the keys work, and I have good scope shots. I am on it again today, because it sure seems like it should work, using a PC keyboard.
I did not take scope shots on the first test, thinking it should just work. Hopefully its just a signal inversion, I cant imagine the protocol is that different. Each keypress looked like a byte of data, 8 cycles on the clock line with corresponding bits on data line. Randy ________________________________ From: cctalk <cctalk-boun...@classiccmp.org> on behalf of william degnan <billdeg...@gmail.com> Sent: Monday, January 23, 2017 5:29 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Attempt at Compaq keybord swap with a PC keyboard (failed) Easier to fix the foam. But a tip to replace the keyboard...use the Compaq keyboard bare by pressing fingers directly on the board, verify that works that way (it should). Record the signals' wire path, match the replacement keyboard wiring. B On Jan 23, 2017 12:45 AM, "Randy Dawson" <rdawso...@hotmail.com> wrote: > > This is the original Compaq I IBM PC clone, 8088 > > > ________________________________ > From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Fred Cisin < ci...@xenosoft.com> > Sent: Sunday, January 22, 2017 9:42 PM > To: General Discussion: On-Topic and Off-Topic Posts > Subject: Re: Attempt at Compaq keybord swap with a PC keyboard (failed) > > On Mon, 23 Jan 2017, Randy Dawson wrote: > > I have luggable with the famous Keytronics foam kepad rot. > > WHAT model Compaq? > > 8088? 80286? >
