Z-89-11 Heath Board.

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norberto.collado koyado.com

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Dec 22, 2025, 7:56:14 PM12/22/25
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Lee,

Do you have the documentation for the Z-89-11 board? On the website, we can only find the schematic, X-RAY and a picture of such board that you provided a long time ago.

Thanks,
Norberto

Lee Hart

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Dec 31, 2025, 4:02:50 PM (14 days ago) 12/31/25
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Hi Norberto,

Yes, I have the complete manual for the Z-89-11 card, Heath #595-2772. In typical Heath fashion, there's a lot of paper. The manual itself is 28 pages, plus a 10-page appendix A on the National 8250, plus an 18-page appendix B on the Signetic 2661, and a 22-page appendix C on the Intel 8255. The appendices are just the data sheets for the respective parts. Then there are two loose sheets; one with the schematic, the other for the parallel printer cable pinouts.

I also have a couple of the cards (if I can find them after my move). I used one to interface to my Okidata u92 parallel printer in CP/M. As I recall, CP/M 2.204 included support for this card.

What do you need?




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norberto.collado koyado.com

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Jan 2, 2026, 10:52:44 PM (11 days ago) Jan 2
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We want to scan in pdf the Manual, the Schematics, and cable pinout. No need to scan the appendix as the information is already online for each IC.

 

Norberto

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