Yahoo Groups archive

Casio CZ/ VZ/ FZ - Pro Series

Index last updated: 2026-04-28 22:42 UTC

Thread

CZ-101 Power Circuit

CZ-101 Power Circuit

2016-02-21 by Evan Buswell

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

RE: [CZsynth] CZ-101 Power Circuit

2016-02-23 by J M Dixon

Hope that helps.
Show quoted textHide quoted text
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










[Non-text portions of this message have been removed]

Re: [CZsynth] CZ-101 Power Circuit

2016-02-24 by bill bigrig

Wat back, Electronic Musician magazine ran an article about cutting out the APO switch, and rewire to use 2 more cartridge banks. You may have a problem in that part of the unit.
Rig

--------------------------------------------
On Sat, 2/20/16, Evan Buswell ebuswell@... [CZsynth] <CZsynth@yahoogroups.com> wrote:
Show quoted textHide quoted text
 Subject: [CZsynth] CZ-101 Power Circuit
 To: CZsynth@yahoogroups.com
 Date: Saturday, February 20, 2016, 11:53 PM
 
 
  
 
 
 
   
 
 
     
       
       
       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
 
 
 
     
      
 
     
     
 
 
 
 #yiv6417355210 #yiv6417355210 --

Re: [CZsynth] CZ-101 Power Circuit

2016-02-24 by Daniel Forró

EM July 1986 :-)

Daniel Forro


On Feb 24, 2016, at 8:20 PM, bill bigrig billbigrig@...  
[CZsynth] wrote:
Show quoted textHide quoted text
> Wat back, Electronic Musician magazine ran an article about cutting  
> out the APO switch, and rewire to use 2 more cartridge banks. You  
> may have a problem in that part of the unit.
> Rig
>

Re: [CZsynth] CZ-101 Power Circuit

2016-02-24 by Tom Green

I'd like to read that article about the APO switch. Is that available somewhere? The EM website doesn't seem very user friendly...

Tom
Show quoted textHide quoted text
On Wed, Feb 24, 2016 at 7:00 AM, Daniel Forró danforcz@... [CZsynth] <CZsynth@yahoogroups.com> wrote:

EM July 1986 :-)

Daniel Forro

On Feb 24, 2016, at 8:20 PM, bill bigrig billbigrig@...
[CZsynth] wrote:

> Wat back, Electronic Musician magazine ran an article about cutting
> out the APO switch, and rewire to use 2 more cartridge banks. You
> may have a problem in that part of the unit.
> Rig
>


Re: [CZsynth] CZ-101 Power Circuit

2016-02-24 by Tom Green

Ummmm... thanks, but I don't think that tells me anything useful about how to defeat the APO.

I appreciate the effort though! :-)

-Tom
Show quoted textHide quoted text
On Tue, Feb 23, 2016 at 1:29 PM, 'J M Dixon' jm_dixon@... [CZsynth] <CZsynth@yahoogroups.com> wrote:

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

 [Non-text portions of this message have been removed]


Re: [CZsynth] CZ-101 Power Circuit

2016-02-24 by Daniel Forró

Check your mail :-)

Daniel Forro


On Feb 24, 2016, at 10:42 PM, Tom Green xman143@... [CZsynth]  
wrote:
Show quoted textHide quoted text
> I'd like to read that article about the APO switch.  Is that  
> available somewhere?  The EM website doesn't seem very user  
> friendly...
>
> Tom

Re: [CZsynth] CZ-101 Power Circuit

2016-02-24 by John Leimseider

Could you post it so we can all read it? Thanks!


Sent from my iPhone


On Feb 24, 2016, at 4:18 PM, "Daniel Forr? danforcz@...<mailto:danforcz@...> [CZsynth]" <CZsynth@yahoogroups.com<mailto:CZsynth@yahoogroups.com>> wrote:






Check your mail :-)


Daniel Forro




On Feb 24, 2016, at 10:42 PM, Tom Green xman143@...<mailto:xman143@...> [CZsynth] wrote:



I'd like to read that article about the APO switch.  Is that available somewhere?  The EM website doesn't seem very user friendly...


Tom

Re: [CZsynth] CZ-101 Power Circuit

2016-02-25 by Tom Green

Got it. Thank you!

-Tom

On Wed, Feb 24, 2016 at 6:17 PM, Daniel Forró danforcz@... [CZsynth] <CZsynth@yahoogroups.com> wrote:

Check your mail :-)

Daniel Forro


On Feb 24, 2016, at 10:42 PM, Tom Green xman143@... [CZsynth] wrote:

I'd like to read that article about the APO switch. Is that available somewhere? The EM website doesn't seem very user friendly...

Tom


Re: [CZsynth] CZ-101 Power Circuit

2016-02-25 by Lee Borrell

Could I see that Daniel,please?

Are there any copyright issues as I could put it online for reference?

LEE
Show quoted textHide quoted text
      From: "Daniel Forró danforcz@... [CZsynth]" <CZsynth@yahoogroups.com>
 To: CZsynth@...m 
 Sent: Wednesday, 24 February 2016, 23:17
 Subject: Re: [CZsynth] CZ-101 Power Circuit
   
    Check your mail :-)
Daniel Forro 

On Feb 24, 2016, at 10:42 PM, Tom Green xman143@... [CZsynth] wrote:

I'd like to read that article about the APO switch.  Is that available somewhere?  The EM website doesn't seem very user friendly...

Tom

Re: [CZsynth] CZ-101 Power Circuit

2016-02-25 by Daniel Forró

Of course, I have sent it to you. I don't know about the copyright...

Daniel Forro


On Feb 25, 2016, at 9:03 PM, Lee Borrell templarser@... [CZsynth] wrote:



Could I see that Daniel,please?

Are there any copyright issues as I could put it online for reference?

LEE

Re: [CZsynth] CZ-101 Power Circuit

2016-02-25 by John Leimseider

Could you also send it to me? Thank you!


Sent from my iPad


On Feb 25, 2016, at 5:15 AM, Daniel Forr? danforcz@...<mailto:danforcz@...> [CZsynth] <CZsynth@yahoogroups.com<mailto:CZsynth@yahoogroups.com>> wrote:






Of course, I have sent it to you. I don't know about the copyright...


Daniel Forro




On Feb 25, 2016, at 9:03 PM, Lee Borrell templarser@yahoo.co.uk<mailto:templarser@...> [CZsynth] wrote:






Could I see that Daniel,please?


Are there any copyright issues as I could put it online for reference?


LEE

Re: [CZsynth] CZ-101 Power Circuit

2016-02-26 by Lee Borrell

I have put it online at :

http://templarseries.atspace.com/cz.html
Show quoted textHide quoted text
      From: "John Leimseider john.leimseider@... [CZsynth]" <CZsynth@yahoogroups.com>
 To: CZsynth@yahoogroups.com 
Cc: "CZsynth@yahoogroups.com" <CZsynth@yahoogroups.com>
 Sent: Wednesday, 24 February 2016, 23:19
 Subject: Re: [CZsynth] CZ-101 Power Circuit
   
    Could you post it so we can all read it? Thanks!

Sent from my iPhone
On Feb 24, 2016, at 4:18 PM, "Daniel Forró danforcz@... [CZsynth]" <CZsynth@yahoogroups.com> wrote:


 Check your mail :-)
Daniel Forro 

On Feb 24, 2016, at 10:42 PM, Tom Green xman143@... [CZsynth] wrote:

I'd like to read that article about the APO switch.  Is that available somewhere?  The EM website doesn't seem very user friendly...

Tom

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.