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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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dirty DC power input
Hi,
I'm a total electronics newbie, so forgive the ignorance! I have just gotten a device (a drum machine) with an apparently dirty DC input power socket. Using a 9V AC-DC adapter, the unit works, but only when the connector is just in the RIGHT position. Otherwise the thing doesn't turn on. How does on go about cleaning out one of these jacks? The jack is not loose or anything and fits the plug very tightly, but the slightest movement can cut the power. Any suggestions? Also, while I'm here, can any damage be done by using a 300 mA adapter on equipment that requires only 50 mA? Again, total newbie here, but using this adapter on the drum machine hasn't hurt it (yet!). Thanks in advance. |
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