Path: utzoo!attcan!uunet!lll-winken!uwm.edu!psuvax1!rutgers!cmcl2!sbcs!sboslab7!ruderman From: ruderman@sboslab7.cs.sunysb.edu (David Ruderman) Newsgroups: comp.sys.zenith.z100 Subject: Re: cleaning the keyboard Message-ID: <1990Jul23.155521.29110@sbcs.sunysb.edu> Date: 23 Jul 90 15:55:21 GMT References: <3540@husc6.harvard.edu> Sender: usenet@sbcs.sunysb.edu (Usenet poster) Organization: State University of New York at Stony Brook Lines: 31 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 :) > It has been my experience (with the H/Z-120 all-in-one) that if the keys do not clean by opening up the machine and blowing out the keys with some high powered contact cleaner, then you can replace the keyboard which just pops out (after you dig down into the machine and find some money) or replace the individual key switch (which can be had from heath/zenith quite cheaply, if they got them. I suggest you get a dozen. You have to take out the keyboard, desolder the switch, then remove it. The new switch just pops in.) I had to resort to replacing the keys, because the spraying just clogged up the key switches more (and other adjacent keys). In fact I have also replaced the keyboard (at the time they were $120 with a trade in.) I havent done this in some time, but my poor friend who now owns the machine has to do this occasionally. -dave -- -------------------------- - David Ruderman ( # ) O ' ' ' ' ' ' ' Racquetball Commissioner Y Racquetball -------------------------- I Uber Alles!