Casio CZ/ VZ/ FZ - Pro Series

From: terry.vanilla <terry.vanilla@...>
Subject: [CZsynth] CZ-1 problem: no power at all anymore (transformer problem?)
To: CZsynth@yahoogroups.com
Date: Monday, 13 May, 2013, 12:32
















 



  


    
      
      
      Hello

I tried to clean my good old CZ-1 yesterday and suddenly, after putting it all together again - it died completely. No LED, no lights on anymore, just nothing. I checked the input voltage at the transformer, it is as expected 230V. There is no voltage level on the secondary part of the transformer (while the board is still attached - ie. I did not yet try the transformer without the attached board). So all the 15V and 5V supply for analog and digital circuits are now unavailable (almost 0 V). The fuses are all OK, so I suppose it is in fact the transformer that died... or does the transformer switch off automatically in case of a short circuit or high temperature? :-(

Did anyone of you guys have similar experience? Do you know if I can replace the transformer easily, will a universal transformer be OK for the CZ-1? Or do I have to buy a special one from CASIO? Probably it is not available anymore anyway....



Thanks for helping out a little.

Cheers

Terry





    
     

    
    






  










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

>
> Sounds indeed like the transformer died,you can indeed check the output with no board attached or test the output coils (whilst not plugged in) with a resistance meter - which should show low resisitance - infinity means it is busted.
> 
> You do not need a casio replacement,but you do need to know the current rating and the value of the output coil(s) voltage(s).
> 
> 
> 
> --- On Mon, 13/5/13, terry.vanilla <terry.vanilla@...> wrote:
> 
> From: terry.vanilla <terry.vanilla@...>
> Subject: [CZsynth] CZ-1 problem: no power at all anymore (transformer problem?)
> To: CZsynth@yahoogroups.com
> Date: Monday, 13 May, 2013, 12:32
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>       Hello
> 
> I tried to clean my good old CZ-1 yesterday and suddenly, after putting it all together again - it died completely. No LED, no lights on anymore, just nothing. I checked the input voltage at the transformer, it is as expected 230V. There is no voltage level on the secondary part of the transformer (while the board is still attached - ie. I did not yet try the transformer without the attached board). So all the 15V and 5V supply for analog and digital circuits are now unavailable (almost 0 V). The fuses are all OK, so I suppose it is in fact the transformer that died... or does the transformer switch off automatically in case of a short circuit or high temperature? :-(
> 
> Did anyone of you guys have similar experience? Do you know if I can replace the transformer easily, will a universal transformer be OK for the CZ-1? Or do I have to buy a special one from CASIO? Probably it is not available anymore anyway....
> 
> 
> 
> Thanks for helping out a little.
> 
> Cheers
> 
> Terry
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From: terry.vanilla <terry.vanilla@...>
Subject: [CZsynth] Re: CZ-1 problem: no power at all anymore (transformer problem?)
To: CZsynth@yahoogroups.com
Date: Friday, 17 May, 2013, 5:45
















 



  


    
      
      
      Oops - checked the resistance but it was ok. Then I noticed that the cables were no longer attached to the power switch... They had gone off... So I think that was the reaoson (Level 1 Problem :-) )



Thanks for your support anyway



Terry



--- In CZsynth@yahoogroups.com, Lee Borrell <templarser@...> wrote:

>

> Sounds indeed like the transformer died,you can indeed check the output with no board attached or test the output coils (whilst not plugged in) with a resistance meter - which should show low resisitance - infinity means it is busted.

> 

> You do not need a casio replacement,but you do need to know the current rating and the value of the output coil(s) voltage(s).

> 

> 

> 

> --- On Mon, 13/5/13, terry.vanilla <terry.vanilla@...> wrote:

> 

> From: terry.vanilla <terry.vanilla@...>

> Subject: [CZsynth] CZ-1 problem: no power at all anymore (transformer problem?)

> To: CZsynth@yahoogroups.com

> Date: Monday, 13 May, 2013, 12:32

> 

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> Â 

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>       Hello

> 

> I tried to clean my good old CZ-1 yesterday and suddenly, after putting it all together again - it died completely. No LED, no lights on anymore, just nothing. I checked the input voltage at the transformer, it is as expected 230V. There is no voltage level on the secondary part of the transformer (while the board is still attached - ie. I did not yet try the transformer without the attached board). So all the 15V and 5V supply for analog and digital circuits are now unavailable (almost 0 V). The fuses are all OK, so I suppose it is in fact the transformer that died... or does the transformer switch off automatically in case of a short circuit or high temperature? :-(

> 

> Did anyone of you guys have similar experience? Do you know if I can replace the transformer easily, will a universal transformer be OK for the CZ-1? Or do I have to buy a special one from CASIO? Probably it is not available anymore anyway....

> 

> 

> 

> Thanks for helping out a little.

> 

> Cheers

> 

> Terry

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

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

>
> 
> 
> hello cz people,
> 
> may i know the polarity of the battery contacts to the board of the CZ RAM 64-voice data cartridges?
> 
> when i got the cart, the entire battery contacts were ripped off the board. so i need to know, which contact on the board is negative?/positive
> 
> i don't even know if this thing works, but i just want to make sure.
> 
> thanks in advance.
> 
> Â 
> 
> 
> 
> Â 
> Jing Garcia
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