Casio CZ/ VZ/ FZ - Pro Series

Hi Chris,

  Without looking at the beast I'm thinking something is overheating 
and shutting down the unit. Have you had the cover off and looked for 
hot components? Be careful there are lethal voltages inside. 

  If nothing is getting too hot then possibly the power supply has 
too much ripple and the cpu finally stops midstream. This can be 
checked with a voltmeter.

  I can help further if you want to check it out. I haven't seen the 
Service Manual around for the VZ8M. Has anyone else?

Fran 

--- In CZsynth@yahoogroups.com, "chrispoacher" <chrispoacher@...> 
wrote:
>
> Hi everyone I'm a newbie to this group and have just purchased a 
VZ8M 
> synth rack.
> 
> I'm a previous VZ-1 owner so I love the sounds it makes but had to 
> sell it due to lack of space and felt at the time it was not 
required 
> with the amount of Roland gear and softsynths around now.
> 
> However, I listened to one of my old albums recently that I used 
the 
> VZ-1 on, and the memory's came flooding back. I still have a dump 
via 
> sysex of all the sounds I programmed and was chuffed when I picked 
up 
> a cheap VZ8M from ebay recently.
> 
> Only problem is i've been sold a dud, When I power the machine on 
it 
> works but only for around 1 minute or so until it hangs completely. 
> All midi notes are stopped (sometimes hanging) and I can't get any 
of 
> the buttons to work at all on the front. Sometimes the screen is 
> garbled, but everytime I have to switch the unit off, leave if for 
> about 10 seconds then power back on.
> Then the whole sequence of events starts again.
> 
> I'm gutted as It's got some lovely clarity from this thing but it's 
> unusable in it's present state.
> 
> Just wondering if anyone else had had a similar problem with a 
casio 
> unit and would have an idea of what it might be to fix it.
> 
> Any help greatly appreciated...
> 
> Thanks
> 
> Chris Poacher
> chrispoacher@...
> 
> www.myspace.com/emula2or
> www.adsr-music.net
> www.myspace.com/digitalmotionuk
>