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Path: utzoo!mnetor!seismo!mcnc!ecsvax!ranger
From: ranger@ecsvax.UUCP (Rick N. Fincher)
Newsgroups: comp.sys.apple
Subject: Re: printer board
Message-ID: <3453@ecsvax.UUCP>
Date: Thu, 25-Jun-87 13:06:52 EDT
Article-I.D.: ecsvax.3453
Posted: Thu Jun 25 13:06:52 1987
Date-Received: Sat, 27-Jun-87 02:09:48 EDT
References: <8706221005.aa07417@SMOKE.BRL.ARPA>
Organization: UNC Educational Computing Service
Lines: 14
Summary: Change all the chips...


In reference to repairing a lightning fried parallel printer board.  I had
a similar experience a few years back.  I changed all of the chips on the
board (8 of 'em) for about $5 the ROM was in good shape.  The board is still
running without a hitch.  If the board has socketed chips you can easily
do this.  Just write down the numbers and get them at a local parts house.
If the board has programable chips like PALs and ROMs, you may have to get
them from the manufacturer, if they are bad.  Try changing the regular TTL
stuff first.  If the chips are soldered in, as most are these days, see what
the manufacturer charges for repairs.  Unless you are very good with a solering
iron, you may be better off to trash the board and buy a new one for $50.

Rick Fincher
ranger@ecsvax