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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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What is the fifth transistor likely for?
I was junking a moderately priced combo CD, AM/FM/Casette, from 1998,
that I got out of the trash and which wouldn't play CDs anymore, and it had an array of five output trnasisttors, instead of the usual four. All are the same size, on one big heat sink. No schematic of course. The part numbers are obscured but I can see the ends of several. 1 B1370 2 B1020 3 B1415 (or 01415, or D1415, or ?1415 4 B1020 same as 2 5 same as 3 What is the fifth transistor likely for? Don't put a lot of work in to this. The device is junked/trashed already. |
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