Path: utzoo!attcan!uunet!snorkelwacker!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!usc!ucsd!nosc!halibut.nosc.mil!koziarz
From: koziarz@halibut.nosc.mil (Walter A. Koziarz)
Newsgroups: comp.sys.zenith.z100
Subject: Re: cleaning the keyboard
Message-ID: <2521@nosc.NOSC.MIL>
Date: 19 Jul 90 13:31:54 GMT
References: <3540@husc6.harvard.edu>
Sender: nobody@nosc.NOSC.MIL
Reply-To: koziarz@halibut.nosc.mil.UUCP (Walter A. Koziarz)
Organization: Naval Ocean Systems Center, San Diego
Lines: 21

In article <3540@husc6.harvard.edu> ddl@husc6.harvard.edu (Dan Lanciani) writes:
>
>	What's the consensus on cleaning the key contacts?  Too many
>keys are getting too unreliable and popping individual caps looks to
>be potentially destructive...  Maybe dip the whole thing :)
>
>				Dan Lanciani
>				ddl@harvard.*


Here at work I have cleaned several Z100 keyboards in the following manner.

I used a paint-spraygun connected to the building dry nitrogen line (as the
compressed air source) and filled with isopropyl (sp?) alcohol to FLUSH the
entire keyboard assembly clean.  This obviously should be performed in a well
vented area (fume hood!).

Isopropyl alcohol is harmless to the keybaord (and most other microelectronics)
and has in all the cases I've participated in solved the problem.

Walt K.