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From: hcj@lzsc.ATT.COM (HC Johnson)
Newsgroups: comp.sys.atari.st
Subject: Re: PC DITTO II
Summary: Solder it in!
Message-ID: <2149@lzsc.ATT.COM>
Date: 5 Sep 90 12:41:29 GMT
References: <1935@ac.dal.ca>
Organization: AT&T BL Middletown/Lincroft NJ USA
Lines: 24

In article <1935@ac.dal.ca>, ssmith@ac.dal.ca writes:
> I have a friend who has installed PC DITTO II in his atari. He said he has 
> been trying to make  it work for a month now. I have no experience with atari
> products but know somthing about ibm stuff. 
> Does anybody know if there are any tricks to making this product work.
> Are there any jumper or switch setting to be concerned about?
> Any hints or basic concerns (ie interrupts, dma, etc) wouldm be appreciated.
> Please post to this list
> 
> Thanks, G. James


The scheme used by PC Ditto to clamp the header on the 68000 chip is awful.

SOLDER it to the 68000.  This is not trivial, but is necessary for consistent
performance.  I used a Weller constant temp iron with a very long tip.

Also, Don't forget the jumper on the Math Chip socket of the PCD II board.
It absolutely necessary.

Howard C. Johnson
ATT Bell Labs
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