Andy,
So far I have sold a few sliders, two voice cards, the PRA board and a few other odds and ends. If you are still interested in some items, let me know soon. Also, I am pretty sure that if you are just interested in slider caps the cost of shipping wouldnt be worth the caps. But we can talk.
Steve
-----Original message-----
From:
kirkbyte@...To:
yamahacs80@yahoogroups.comSent: Sun, May 15, 2011 01:01:29 GMT+00:00
Subject: Re: [yamahacs80] Yamaha Voice Card for Sale
Hi Steve,
I'm keen, i might also need some fader caps and other bits if you have them?
Andrew
> steve kodnel <dzlvs8@...> wrote:
>
> If anyone wants a voice card from a Yamaha CS-50, I have one for sale.
> ����It works perfect. ����I'm ����not sure how much to ask for one but I am
> going to say $300 obo right now. ����
> Also, if you need any other parts, please let me know, I may still have
> them available.Thanks,
> Steve
>
>
> --- On Sat, 5/14/11, jkjelec@... <jkjelec@...> wrote:
>
> From: jkjelec@... <jkjelec@...>
> Subject: Re: [yamahacs80] Pitch Drop When Using Sustain 1
> To: yamahacs80@yahoogroups.com
> Date: Saturday, May 14, 2011, 4:13 PM
>
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> ����
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> OK, this is what I found:
>
>
>
> I was thinking that it had to be this, that I cut and saved from AH (I
> think) a few years ago:
>
>
>
> "Seems the SH card collects debris over the years from being near the
> front ����
>
> of the machine, underneath the keyboard, and this reduces its
> effectiveness ����
>
> as an insulator. The impedance of the input to the SH amps (CA3140T) is
> in ����
>
> the order of 1.5 T Ohms (1500 Meg Ohms!) and the SH caps are quite small
> for ����
>
> this application (0.22uF) so it doesn't take much to cause that voltage
> to ����
>
> leak away. Some good old household dust plus several gigs in smokey ����
>
> theatres (this was the eighties, don't forget) would probably be enough.
>
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>
> I found if I lifted the end of the caps which feed to the CA3140T's from
> the ����
>
> PCB, Pin 3 of the CA3140T's and also the 4066 Gate outputs and
> wire-linked ����
>
> them together away from the surface of the PCB, the problem goes away.
> There ����
>
> is still a very small voltage drop but even with full Sustain
> (Yamaha-speak ����
>
> for Release) the change in pitch isn't noticeable.
>
>
>
> I'm guessing this must be a common fault, as the CS-60 card I have
> exhibits ����
>
> the same problem.
>
>
>
> Lucid."
>
>
>
> jkjelec
>
>
>
> ----- Original Message -----
>
> From: "lucidsound" <lucidsound@...>
>
> To: yamahacs80@yahoogroups.com
>
> Sent: Thursday, May 12, 2011 2:33:54 PM
>
> Subject: [yamahacs80] Pitch Drop When Using Sustain 1
>
>
>
> Has anyone else come across the quirk whereby if using long release
> times in Sustain Mode 1, the oscillator pitch drops slowly when the
> notes are released? ����Switching to Sustain II brings the notes back to
> the correct pitch.
>
>
>
> I figure this is something to do with the Keyboard SH card, and voltages
> leaking away from the capacitors.
>
>
>
> Any suggestions or previous experiences of this problem welcome!
>
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>
> Thanks,
>
>
>
> Lucid.
>
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