Date : Tue, 13 Feb 1990 17:47:52 GMT
From : crash!mwilson@nosc.mil (Marc Wilson)
Subject: Kaypro 4 ('84) Hardware
In article <19697@ea.ecn.purdue.edu> wieland@ea.ecn.purdue.edu.UUCP (Jeffrey
J Wieland) writes:
>In article <1096@mindlink.UUCP> a577@mindlink.UUCP (Curt Sampson) writes:
>>On my Kaypro 4 (1984 vintage) I have a long header (connecter) that is much
>>like the floppy drive header (for a ribbon cable), but right above it. Does
>>anyone have any idea what this is for? Thanks.
>> -CJS
>
>It's for the SASI interface for the Kaypro 10's. The 10's used the same
>motherboard. There should be numerous empty spots on you motherboard
>near the SASI connector -- those are for the logic to implement SASI.
No, no, NO! There has NEVER been a Kaypro that speaks SASI! >
All that conector is is a parallel port ( no, it doesn't go through the
PIO ). Actually, it's more or less just an extension of the Z80.
Kaypro made two motherboards that support the hard drive interface.
These were the 81-180 board ( the Kaypro-10 board ), and the 81-185
board ( the 2/84-4/84-2X-Robie board ). The 81-185 board has several
different part numbers, depending on which machin it was installed in,
whether or not it had the real-time clock installed, the modem installed,
etc. The 81-185 board is also where the dreaded Universal ROM made it's
appearance. Not to worry, the same board can also run the nornal 81-302
ROM.
From part # 1484-F, Kaypro Technical Manual, September 1985:
Model Name CP/M version Mainboard ROM revision
2/84 2.2g 81-294 81-292A
4/84 2.2g 81-184/85 81-292A
4/84+88 2.2g 81-184/85 81-292A
2X 2.2g 81-294 81-292A
2.2h
4X 2.2g 81-297 81-326E
2.2h
Robie 2.2g 81-296 81-478A
2.2h
10 2.2g 81-180 81-302C
2.2h
2X/modem/RTC 2.2u1 81-580 81-478A
10/modem/RTC 2.2u1 81-582 81-478A
New 2 2.2u1 81-294 81-478A
1 2.2u1 81-294 81-478A
The table is actually somewhat inaccurate. The K10 will run ANY
version of Kaypro CP/M ( except for u1 ), as long as you MOVCPM a 60k
system.
The 81-478A ROM is the dreaded Universal ROM.
The 81-184/185/294/295/296/580/582 motherboards are all the SAME
motherboard, and they all support the HD. The best of these to have is
the 81-184/185, because it also includes the RTC and the modem. This
motherboard is also known as the Universal Motherboard.
This is the board that is/was in my K4/84, which is now a K10/84.
No soldering required. Just cables. You also need the 81-302 ROM,
and the host board, and a WD1002-HD0 ( NOT the 1001 ). If you do have
a WD1001, you have to re-assemble the ROM.
Any more questions? With Kaypro just up the coast from me, it's
easy to get SOME questions answered. Unfortunately, they have NO ONE
from the old days left ( that we could find ).
--
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Marc Wilson
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