Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!olivea!uunet!tut.cis.ohio-state.edu!ucbvax!gnh-starport.cts.com!whitewolf From: whitewolf@gnh-starport.cts.com (Tae Song) Newsgroups: comp.sys.apple2 Subject: Re: Motherboard in Dishwasher? Message-ID: Date: 9 May 91 11:36:17 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 52 X-Unparsable-Date: Wed May 8 91 at 14:32:45 (EDT) |People, PEOPLE, get with the program!!! | |Motherboards & keyboards in WATER? H2O? Di-hydrogen oxide? That clear |fluid? | |Hmm, I don't think so... | |Circuit boards (which includes motherboards and the circuit board in a |keyboard and lots of other boards) are, well, they're not plastic. I'm no |expert on circuit board composition, but older circiut boards behave like |paper, ie they will absorb water, etc. Newer circuit boards are less |suseptible to this, but they can still absorb water. Don't forget that |water also contains clorine and other chemicals that can do nasty things |to circuit boards and edge connectors. Also don't forget that chips are |NOT guaranteed to be waterproof and, well, water could get stuck in a chip. | |OK, ok, I don't want to start an argument and waste lots of bandwidth and |some of the things I've said here may not be 100% accuracte, HOWEVER |bathing circuit boards, keyboards, and other electronic components has never |been an accepted practice. I don't think any technical person would ever |recommend such maintainance! | |We could take this discussion over sci.electronics (which I do read) if anyone |wants to pursue this. | |Chris >SIGH< Look, if the circuit board can absorb water, why not other kind of liquids that you spill on it. Whatever clorine and other "nasty" things in the water may do to the ciruit board, think of what the goop is doing. Water is not a very good conductor, even with the impurities that it does contain, where as the goop which you've spilt on your keyboard will short-ciruit it or cause it to not function correctly. Soda is a much better conductor relative to tap water. Worse comes to worse, you do destroy the keyboard... you get a new, which would've been inevitable. If you've spilled it on a mother board it will most likely not work... this has happen to me once when I was younger... I eventually got a GS, and donated the IIe to a BBS. The sysop was able toget it repaired, by getting the "goop" off and replacing couple ROM chips. I do consider myself a tech person... I'm current finishing up a DC circuit analysis class... I do repairs for friends and relatives... and I'm planning it as a career. I think some people on the net may even vouch for me. I'd gladly take it over to the sci.electronics, but I only have access to the this section... I'm calling from a local BBS with some limited access to the net. INET: whitewolf@gnh-starport.cts.com UUCP: crash!gnh-starport!whitewolf ARPA: crash!gnh-starport!whitewolf@nosc.mil