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Path: utzoo!utcsri!hogg
From: hogg@utcsri.UUCP (John Hogg)
Newsgroups: ont.micro
Subject: Apple II parallel printer card - help!
Message-ID: <2021@utcsri.UUCP>
Date: Thu, 30-Jan-86 10:55:31 EST
Article-I.D.: utcsri.2021
Posted: Thu Jan 30 10:55:31 1986
Date-Received: Thu, 30-Jan-86 11:18:07 EST
Reply-To: hogg@utcsri.UUCP (John Hogg)
Distribution: tor
Organization: CSRI, University of Toronto
Lines: 23

I have (temporary custody of) an Apple II+ connected to a Centronics (779?)
printer.  The two used to talk to each other, but when I try to redirect
output, the machine now hangs.

I suspect the parallel interface card.  Does anybody else have a machine/printer
combination that could use this part?  If so, would you be willing to drop
it into your machine and tell me whether it runs?

Alternatively, I would like suggestions for a diagnosis or fix.  I replaced
four out of five chips on the card (the trivial stuff) but the most likely
culprit would be the PROM, which seems to be difficult to obtain.  The
probable fix will be to replace the card, but I don't want to do this until
I know that's where the problem is.

Please help - my mother wants her computer...
-- 

John Hogg
Computer Systems Research Institute, UofT
...utzoo!utcsri!hogg

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