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From: mwilson@crash.cts.com (Marc Wilson)
Newsgroups: comp.os.cpm
Subject: Re: Kaypro II needs help!
Message-ID: <4188@crash.cts.com>
Date: 30 Aug 90 09:44:13 GMT
References: <9008281713.AA29044@lll-lcc.llnl.gov>
Organization: San Diego Mesa College, San Diego, CA.
Lines: 30

In article <9008281713.AA29044@lll-lcc.llnl.gov> rzh@LLL-LCC.LLNL.GOV (Roger Hanscom) writes:
>
>Hello All --
>Any Kaypro II users out there??  I've got one that acts like someone's
>leaning on the three key.  When I power it on, the "A>" prompt comes up,
>but then a line and a half of threes follows.

Sounds like a similar problem I had with another SBC...

>Does the keyboard (serial) go in via a PIO, SIO, or a TTL 8-bit serial shift
>register (74LS164 ??) ?  Any comments would be appreciated.

The keyboard is served by one of the two SIO chips you see on the motherboard
of the machine.  For the II-83, it's the chip at U70.  For the 2/84, it's the
chip at U11.  Replace it, and see if your problem goes away.  Mine did.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Marc Wilson
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Marc Wilson
     ARPA: ...!crash!mwilson@nosc.mil
           ...!crash!pnet01!pro-sol!mwilson@nosc.mil
     UUCP: [ cbosgd | hp-sdd!hplabs | sdcsvax | nosc ]!crash!mwilson
     INET: mwilson@crash.CTS.COM
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