Casio CZ/ VZ/ FZ - Pro Series

>I recently bought a Casio VZ1 with rom card and flight case for \ufffd48
>and I think there is a problem when switching on the synth.
>
>When I switch on the synth I have to wait 4 seconds before I hear a
>slight click before I can hear sounds when I play a note. Is this
>normal or is there something wrong with my VZ1?
>
>Please advise.

It's fine.  When some audio devices are switched on or off, there can be a 
loud thump or other sound as everything is powered on.  This can potentially 
damage amplifiers or speakers (or at least be annoying), so it's good 
practice to install relays in the audio path that switch on after a certain 
amount of time has passed- this allows all of the circuitry to stabilize 
before outputting anything.

So it's actually good engineering practice, though the delay does seem to be 
a bit excessive.  It makes me wonder what kind of horrible noises are 
actually being produced during that time that they had to put the relays in.