Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!bu.edu!m2c!umvlsi!dime!process.com
From: SNYDERS@process.com (John Snyders)
Newsgroups: comp.sys.atari.st.tech
Subject: GCR / MegaST problem?
Message-ID: <28122@dime.cs.umass.edu>
Date: 19 Mar 91 15:34:07 GMT
Sender: news@dime.cs.umass.edu
Organization: Process Software Corporation
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I just purchased a used spectre GCR. When I started using it in mac mode it
would crash. I looked in the documentation and it says that some Mega2s had
some marginal chips in them and the solution was to replace them.

I checked my machine and sure enough I have the bad chips (SGS 74LS373).

I am thinking of doing the work myself and would like to hear from anyone
who has had this problem and can offer any advice such as.

- Replacement chips used. I would hate to put in new chips that have the same
problem.

- Tips on soldering. My main concern is heat damage to other chips and the new
chips. I have done soldering before but not on a pc board.

- How difficult is the job. Is there any thing else I should know.

Thanks,

John Snyders                                email: snyders@process.com