Sounds like the internal CMOS battery has died. This probably looks like a thick silver disk soldered to one of the internal circuit boards, and when it's working it keeps the internal patches backed up with a minute amount of power to the memory RAM chip. Any decent synth tech should be able to put in a replacement.
Simon
Original Message -----
From: thejunosound
To: CZsynth@yahoogroups.com
Sent: Thursday, May 20, 2004 8:37 AM
Subject: [CZsynth] CZ 5000 saving problems
Hey all,
I'm having a hard time getting my CZ 5000 to retain saved patches. I
can get it to save the patches to internal memory just fine, but when
I try to recall them after the unit has been powered down for over a
minute or so, the patches have seemingly vanished. Any suggestions?
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[Non-text portions of this message have been removed]Message
Re: [CZsynth] CZ 5000 saving problems
2004-05-20 by Simon Beck