Yamaha CS80

Thx Andrew
I understand that, as Sensitronics is one of the few manifacturers who 
builds them I could be forced to get a stock of them! just for the record : 
are the aftertouch sensors printed on the board? I think yes...any chance to 
get the stand-off resistance value for the specific aftertouch resistor in 
the CS80? By looking at David's experiment on the aftertouch I can see that 
the value can go from 0.00oz---> -0.2V to  90oz-->6.95V, but I think it 
doesn't help me findin that value...
M
----- Original Message ----- 
From: "Andrew Kirkby" <kirkbyte@...>
To: <yamahacs80@yahoogroups.com>
Sent: Friday, May 20, 2011 2:18 AM
Subject: Re: [yamahacs80] CS-80 keybed aftertouch resistors


> Max,
>
> Unless they are not functioning properly i wouldn't try and replace
> them. In any case, i have not come across a suitable part in two years
> of casual searching. Sensitronics in the USA might be able to make
> them - but they would be expensive and a substantial custom order
> would be required.
>
>
> Andrew
>
>
> On 20/05/2011, at 10:03 AM, Max Fazio wrote:
>
>> Hi Andy
>> Yes, the FSR , I was referring to the aftertouch sensors
>> anyway...just I
>> find it odd that yamaha is reporting three resistor symbols for each
>> key on
>> the diagram, where the aftertouch contacts are drawn...what could
>> that mean?
>> M
>> ----- Original Message -----
>> From: "Andrew Kirkby" <kirkbyte@...>
>> To: <yamahacs80@yahoogroups.com>
>> Sent: Friday, May 20, 2011 1:45 AM
>> Subject: Re: [yamahacs80] CS-80 keybed aftertouch resistors
>>
>> > Hi Max,
>> >
>> > Are you talking about the FSR (force sensing resistor)?
>> >
>> > Those are the key and aftertouch sensor...
>> >
>> > Andrew
>> > On 20/05/2011, at 8:40 AM, Max Fazio wrote:
>> >
>> >> Hi all
>> >> With your kind help , I need to know something about the variable
>> >> resistors put in the keybed and bound to the aftertouch: according
>> >> to the big diagram there are 3 of them for each key: in case I'm
>> >> happening to service an 80 what should be the replacement for them?
>> >> Ohmic value/tolerance?
>> >> Thanks for your help!
>> >> M
>> >>
>> >> [Non-text portions of this message have been removed]
>> >>
>> >>
>> >>
>> >
>> > Andrew Kirkby
>> > (e) kirkbyte@...
>> > (m) 0416 000 070
>> >
>> >
>> >
>> >
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > Yahoo! Groups Links
>> >
>> >
>> >
>>
>>
>>
>
> Andrew Kirkby
> (e) kirkbyte@...
> (m) 0416 000 070
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>