Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!zehntel!hplabs!sri-unix!Thomka.es@XEROX.ARPA 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