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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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accidentally used reverse polarity 6v dc power supply... fried psd 230 cd player?
My SO accidentally used reverse polarity for the 6v dc power supply input
to the SuperScope PSD 230 portable CD player she just got secondhand. She had not tried it before. Now it does not play with the power supply only (tip positive, which I think is correct according to the diagram on the outside of the box). However, it seems to play fine with batteries. Does reversing the polarity of a 6v dc power supply to an electronic device ordinarily fry the innards? Or is there usually some kind of protective circuit that prevents this mistake from having serious consequences? TIA... |
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