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From: Thomka.es@XEROX.ARPA
Newsgroups: net.micro.apple
Subject: Re: Apple ][ problems
Message-ID: <12364@sri-arpa.UUCP>
Date: Sun, 19-Aug-84 01:42:00 EDT
Article-I.D.: sri-arpa.12364
Posted: Sun Aug 19 01:42:00 1984
Date-Received: Wed, 15-Aug-84 06:41:34 EDT
Lines: 19

The most likely problem most Apples (II and II+'s) have is that the pins
on the chips get tarnished.  You may notice that some of the TI (Texas
Inst) chips will get nearly black!  It seems that they have a higher
than normal silver content, not the usual nickel alloy most companies
use.  Then the contacts become very susceptable to thermal changes.  The
problem may happen at any time.  I suggest that you clean the pins.
That's quite a job, though, because there are approximately 100 chips,
and about 14 pins on each chip, thus it takes about 2-3 hours in doing
the job.
I had the same problem a while back.  I removed each chip, only one at a
time (so as not to get them accidently in the wrong place), used a
personally favorite cleaning method/cleaner and had my Apple up and
running just fine after about 4 hours.

If you really don't want to go through all that hassel, then just
removing the chips and putting them back in their sockets will "clean"
them for a while anyway.

	Chuck