Casio CZ/ VZ/ FZ - Pro Series

Hope that helps.





From: CZsynth@yahoogroups.com [mailto:CZsynth@yahoogroups.com]
Sent: Sunday, February 21, 2016 1:53 AM
To: CZsynth@yahoogroups.com
Subject: [CZsynth] CZ-101 Power Circuit








Hi all,





I just bought a CZ-101 with some sort of power problem. It stays on all the time, and the power switch is ineffective. So far, I've checked that the continuity on the ribbon coming from the switch board changes when the switch is depressed (and threw on some contact cleaner, just in case). I can also hear the relay switch on and off, but strangely this seems to have no effect. Adjusting the resistor for the power detect fail circuit, I can make it turn *off* when the switch is on, and rapidly oscillate on and off when the switch is off. But if it's fully on when the switch is on, then it's always on when it's off, too. I don't have the full service manual (just the schematics that are floating around), so idk exactly how I'm supposed to adjust that VR, or if there's another one (but it doesn't look like it from the schematics). Anyone have any ideas? Also, does anyone have the full service manual? Also, I see a few things missing from the schematics but present on the boards. Do we know if there were several revisions of the 101?


At least it's stuck in "on." Maybe I should just keep playing it?? :-P





Thanks!





Evan










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