Blair P. Houghton wrote: > > R. Paul McCarty <mccarty@reg16.admin.rochester.edu> wrote: > >hands. :) Only problem is it only worked for 10 minutes and then it > >suddenly stopped working. I unplugged it and tried it again and it worked > >for a couple of minutes and then it stopped. The IC got really hot, and I > >decided it was dead and got a new keyboard and repeated the tests. Same > >problems only this time the computer shutoff, so I suspect a wiring > >problem in the cable is shorting out power to the key-glove. Luckilly it > >didn't short through my hand. :) > > Check to make sure you're grounding yourself at the wrists. That's probably a good idea. Thanks. > ESD messes up a lot of stuff in weird ways. I've had problems > with a logitech mouse that gets lost; the cursor no longer > responds to it and I have to reboot. I'd suspected ESD, but > never associated the problem with a shock, until a week or so > ago when Laura came in and kissed me on the head while I was > moving the mouse. She zapped me and the cursor froze. > Case solved. Yeah, no more kissing in the workplace. ;) > ESD doesn't always involve a noticeable zap. The least > noticeable discharge is several hundred volts. Many electronic > devices can be discombobulated by just a couple of hundred > volts. GaAs transistors can be destroyed but as little as > 100 volts, but I doubt your keyboard controller has any of > those in it. Probably not; its dated 1980 on the ceramic case. -Paul
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