There arent a lot of pots and sliders on the unit but , after after reading about your symtoms, I would say that there's either a crack in the PC board related to the sound output area in question and/ or a soldered area with "aged" solder that's not making good connections. With the change in on-time I would say most likely the latter. Scott Frye AudioFixation Consumer / Pro Audio Repair Southern VT "Resistance is futile but..... Impedance is much more complex"
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Re: Casio CZ-1 output problem
2008-07-24 by scott frye