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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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"shake" switch?
Hi,
I've got a programmable remote that has a switch inside that is used to detect motion (i.e., to see when you have picked the remote *up*). It uses this signal to "turn itself on". Note that it is NOT a (typical) mercury switch. I.e., I can leave the remote in *any* orientation and just "tap" it to get it to turn itself on (it then turns off after a short timeout to conserve batteries). I suspect this is just a ball rolling across a set of contacts so that any motion causes a *made* contact to *break* or a *broken* contact to *make*. But, the damn thing seems to stick from time to time. Of course, if it sticks "off" that's no problem -- just wack the thing until it decides that you have "moved it" : But, if it sticks *on* (i.e., if it keeps signalling "motion" to the electronics inside), then the batteries get depleted in short order (less than a day!) The switch itself is encased in a metallic jacket. Two terminals (axially). I'd say it is about 1/8x1/8x1/2" (a rectangular prism). Any ideas how to replace this (i.e., replacement part)? Or, how to *fix* it? Unit appears to be sealed so contact cleaner isn't a solution... : |
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