Casio CZ/ VZ/ FZ - Pro Series

My first guess would be that you had the capacitance completely bleed off from some component, but I dunno.

A long time ago I had a NeXTstation which exhibited the following property.  If you turned it on, it would run fine for about 15 minutes.  Then it locked up.  And then it wouldn't turn on for about a week and a half.  Then it would run for another 15 minutes.  The problem was that one of the memory cards had a crack in a solder joint which built up capacitance over that 15 minutes, which converted the crack into an insulator and shut off electrical flow.  It would take 1.5 weeks for the capacitance to bleed off. 

This feels like the opposite!  

> On Sep 17, 2018, at 9:24 AM, Les Morey moreylc@... [CZsynth] <CZsynth@yahoogroups.com> wrote:
> 
> 
> No dampness, and it had literally been in the same room for 20 years.  A mystery to me, but I'm not complaining about the outcome!
> 
> From: CZsynth@yahoogroups.com <mailto:CZsynth@yahoogroups.com> <CZsynth@yahoogroups.com <mailto:CZsynth@yahoogroups.com>> on behalf of Lee Borrell templarser@... <mailto:templarser@...> [CZsynth] <CZsynth@yahoogroups.com <mailto:CZsynth@yahoogroups.com>>
> Sent: Saturday, September 15, 2018 9:55 AM
> To: CZsynth@yahoogroups.com <mailto:CZsynth@yahoogroups.com>
> Subject: Re: [CZsynth] Dead CZ-5000
>  
>  
> 
> Could it have been slightly damp,or subject to a change in temperature? It's usually best to leave (unused) electronics to acclimatize to where they are going to be used. Still - a pleasant surprise.  Good one Dan.
> 
> Lee
> 
> 
> From: "Les Morey moreylc@... <mailto:moreylc@...> [CZsynth]" <CZsynth@yahoogroups.com <mailto:CZsynth@yahoogroups.com>>
> To: CZsynth@yahoogroups.com <mailto:CZsynth@yahoogroups.com> 
> Sent: Saturday, 15 September 2018, 14:51
> Subject: Re: [CZsynth] Dead CZ-5000
> 
>  
> Thanks for the suggestions, everyone!  Amazingly (to me), the suggestion below worked--no smoke, just lights and the trusty BRASS ENS patch after leaving it on (apparently dead) for an hour or so.  I suppose there is a better electronics explanation than it was just sulking about its lack of use, but whatever it is, the CZ now powers on instantly upon repeated attempts, even after sitting for a few hours unplugged.  There may be issues lurking in there that will re-emerge, but in the meantime I'll just try to boot it up regularly and play some 80's new wave on it to keep it happy.
> 
> Thanks again, Dan and all!
> 
> From: CZsynth@yahoogroups.com <mailto:CZsynth@yahoogroups.com> <CZsynth@yahoogroups.com <mailto:CZsynth@yahoogroups.com>> on behalf of danforcz danforcz@... <mailto:danforcz@...> [CZsynth] <CZsynth@yahoogroups.com <mailto:CZsynth@yahoogroups.com>>
> Sent: Friday, September 14, 2018 2:17 AM
> To: CZsynth@yahoogroups.com <mailto:CZsynth@...m>
> Subject: Re: [CZsynth] Dead CZ-5000
>  
> 
> - Leave the instrument on for few hours, maybe it needs it if it was not used for long time. But stay near and watch it, if any problem occurs (smoke or so), switch it off.
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