Question about Audio Players & Recorders
Here's some schematics I found on the net:
Not sure if they will help, but they might give you a clue.
Couldn't find anything else- you might try to contact the manufacturer on their web support site.
Posted on Sep 20, 2010
Cant help with the speaker wires but the hum is mains AC hum which is caused by faulty rectifier in the power supply,known in trade as AC ripple ,so if you can obtain a circuit diagram then check out the diodes in the power supply as one of them is going down
Posted on Sep 14, 2010
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Posted on Jan 02, 2017
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