Question about Sony Audio Players & Recorders
The jack for the a/c adapter coud be slightly sprung, and so when the plug is removed, it doesn't quite make contact for the battery feed. Or, there could be some oxidation on the termina legs of the adapter. You can first try to spray some electrical contact cleaner in it, then work the jack in and out, and see if that gets it working. Otherwise, you will have to disassemble the unit and try to see if you have a broken power wire or solder trace going to the jack. Sometimes they're wired in, but they usually have legs soldered to a printed circuit board. Check the solder joints carefully to make sure they're not cracked or cold-soldered (usually a slightly cloudy look, instead of shiny).
Resolder it, if needed.
Chances are it's a bad jack or solder connection.
Good luck, and hope this helps.
Posted on Jan 03, 2011
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Posted on Jan 02, 2017
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