Question about Music
Plugged it in with wrong power cord and there was a loud humming and then I pulled the plug, put in the batteries and the small light goes on but no sound.
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Posted on Jan 02, 2017
Not a fuse. First thing, to check your speaker (amp unplugged, of course), touch the + and - speaker connections to a 9V battery. If you don't hear a pop sound then your speaker is blown. Thus, no output sound. If speaker is OK, then the output IC is your problem.
Posted on Jul 25, 2009
SOURCE: I have casio CTK 496.
The jack for the power supply is soldered to the circuit board. It is likely you have bad solder joints. Keep careful track of which screws go where and you should be able to take it apart enough to get to the solder joints. The screw holes are on the bottom.
Posted on Dec 19, 2010
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