I've realise that when I turn all the oscillator waveform sliders completely down, I can still hear the oscillator playing very faintly, with the tone corresponding to whatever key I hit. From research, it's suggested this is a grounding issue? It is minor, but can it be fixed?
What's causing more concern for me though is that EVERY time I hit a key, there seems to be a click or pop sound. When the oscillator is active (sliders up) I believe it is there but hard to notice unless the arp is on with a low release setting. If the oscillator is disengaged (as in, all waveform sliders totally down) I can hear the isolated clicks each time I press key (along with faint oscillator tone mentioned in last paragraph) - and if I have the arp on, naturally, the clicks play in sync repeatedly to the arp.
Is this normal? What can I do to rectify these issues?