Hello,
I have a PX-320 and the internal tone generator is not producing any sound through the left channel. Nothing comes out of the left channel through the headphones, line-out, or the built-in speaker. The right channel is fine. The problem only happens with sounds from the tone generator (playing the keyboard, metronome, demo songs, etc...).
If I plug an external device into the line-in, it comes through the left channel just fine.
I tried a factory reset by holding down the "Function" and "Rhythm" buttons while turning the power on, but that didn't fix anything.
Any suggestions would be appreciated.
thanks,
-sam