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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Recurrent Keyboard Failure on GE clock radio
Recurrent Keyboard Failure on GE clock radio
My favorite old GE clock radio has metal membrane keys for the direct-set alarm. Looks like this: http://nm7u.tripod.com/homepage/keys.jpg Every six months or so, they quit working. Starts at the bottom row and works it's way up over a period of months. I take it apart and run a strip of paper soaked in alcohol between the contacts and it's all good for another six months. I'm wearing out the screw holes that mount it together. Is there anything I can put on the contacts to retard oxidation or whatever's happening? I thought it was dirt, but sealing the whole thing in packing tape didn't help a bit. The radio isn't worth nothin' but it sure is easy to set the alarm time...when the keys work. I have two of these and they both have the same problem. Ideas? mike -- Bunch of stuff For Sale and Wanted at the link below. laptops and parts Test Equipment 4in/400Wout ham linear amp. Honda CB-125S 400cc Dirt Bike 2003 miles $550 Police Scanner, Color LCD overhead projector Tek 2465 $800, ham radio, 30pS pulser Tektronix Concept Books, spot welding head... http://www.geocities.com/SiliconValley/Monitor/4710/ |
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