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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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Heuristic learning
No-one ever told me to be wary if test speaker voice-coil continuity with a
DVM. Speaker o/c in the amp cab, but after process of removing showed proper ohmage. Exposed pigtails looked ok and tested ok, so heated up and removed the dome. Made wire-taps to both voice-coil lead outs and tested each pigtail in turn. Both had the same break at about the same point of slowly manually pushing the cone in and out, so assumed I was deflecting the cone slightly. Very unlikely the same paint-covered failure at the joins of pigtails to wires , or anywhere else, so what was I doing wrong? Answers here please |
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