Casio CZ/ VZ/ FZ - Pro Series

The midi channel set is dysfunctional because the offset of the pitch bender is incorrect.
Looks like someone had a good old mess with the variable resistors. 
The button becomes active as per the manual when the pbend is set to a value mimicking centre.

So it seems all but the midi output problem have been caused by mal-adjusted presets.

Sent from my iPhone

On 15 Apr 2016, at 20:49, "Lee Borrell templarser@... [CZsynth]" <CZsynth@yahoogroups.com> wrote:

> It looks like all the VR controls are not minimizing to zero.
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> From: "Lee Borrell templarser@... [CZsynth]" <CZsynth@yahoogroups.com>
> To: "CZsynth@yahoogroups.com" <CZsynth@yahoogroups.com> 
> Sent: Friday, 15 April 2016, 20:29
> Subject: Re: [CZsynth] Re: AZ1 repair
> 
>  
> Just noticed that the definable slider only runs from 57-99 instead of 0-99 - another slight bug.
> 
> 
> From: "Lee Borrell templarser@... [CZsynth]" <CZsynth@yahoogroups.com>
> To: "CZsynth@yahoogroups.com" <CZsynth@yahoogroups.com> 
> Sent: Friday, 15 April 2016, 20:19
> Subject: Re: [CZsynth] Re: AZ1 repair
> 
>  
> Further update -after changing all the display transistors - I finally tracked the problem to VR1 - which adjusts the voltage to the LED supply circuit - being set too low. Once altered - the display returned.
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> Everything now works,apart from the MIDI channel set button - which is a bit strange,since the button itself seems to be okay,whilst this is a minor fault - it is a tad irritating. No doubt I will track it down in time.
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> I am writing a report on the findings at AZ for reference.
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> AZ
> From my own experience the AZ1 seems to suffer from a couple of possible faults. The one's my own suffered from was no display and no MIDI output. The ...
> View on templarseries.atspac...
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> From: "Lee templarser@... [CZsynth]" <CZsynth@yahoogroups.com>
> To: "CZsynth@yahoogroups.com" <CZsynth@yahoogroups.com> 
> Sent: Tuesday, 27 October 2015, 11:39
> Subject: Re: [CZsynth] Re: AZ1 repair
> 
>  
> Az is rated at 1.3 w. the casio dg I am working on is rated 4.3w and works off the power bank easily. The dg also uses big fat round batteries, whereas the az uses thin penlight batteries.
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> If there was a current problem then the power pack ought to fail the dg10 too, which it doesn't.
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> W=IV
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> I=W/V
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> Current for dg = 477ma
> For az = 144ma
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> If anything the dg needs a better psu. The az should be ok?
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> Sent from my iPhone
> 
> On 27 Oct 2015, at 11:13, "Gordonjcp gordon@... [CZsynth]" <CZsynth@yahoogroups.com> wrote:
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>> On Tue, Oct 27, 2015 at 10:45:18AM +0000, Lee templarser@... [CZsynth] wrote:
>> > I am using a power bank 450ma supply which powers all other casios ok.
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>> That doesn't sound like anywhere near enough current. Try something like a 1A supply.
>> 
>> -- 
>> Gordonjcp MM0YEQ
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