Synth-DIY Yahoo! Groups Archives

Thread

Having a problem with my CS80

2010-10-15 by cuari7

Hi, Group,

Here's a question for the experts: When I play my '80, sometimes the notes will die off abruptly as if they were bein cancelled due to limited polyphony, even when this shouldn't happen. This happens particularly when playing legato notes.

Any ideas?

Thanks!!

JD

Re: [yamahacs80] Having a problem with my CS80

2010-10-15 by Laurie Curry

what mode is your sustain switch on the lower left panel in?
i or ii
if you are in ii, that is mono/poly mode.... if you are in i, there should be no note stealing unless you have hit 8 voices...
ii mono/poly mode allows you to hold a chord, while playing a monoish meledy.... which cuts releases and utilises monoistic portamento...
-----Original Message-----
From: cuari7 <cuari7@...>
To: yamahacs80@yahoogroups.com
Date: 10/14/2010 19:51
Subject: [yamahacs80] Having a problem with my CS80

Hi, Group,

Here's a question for the experts: When I play my '80, sometimes the notes will die off abruptly as if they were bein cancelled due to limited polyphony, even when this shouldn't happen. This happens particularly when playing legato notes.

Any ideas?

Thanks!!

JD

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

Re: Having a problem with my CS80

2010-10-15 by cuari7

Yeah!!

You were right, my friend.
Shit, I've haad this thing for almost 4 years and never understood the significance of this switch. BTW, I think it was my 3 year-old daughter who was mucking with it.

Thank you so much for the tip!!

jd

Show quoted textHide quoted text

>
> what mode is your sustain switch on the lower left panel in?
> i or ii
> if you are in ii, that is mono/poly mode.... if you are in i, there should be no note stealing unless you have hit 8 voices...
> ii mono/poly mode allows you to hold a chord, while playing a monoish meledy.... which cuts releases and utilises monoistic portamento...

Re: [yamahacs80] Re: Having a problem with my CS80

2010-10-15 by Laurie Curry

when the switch is in I , try experimenting with the pitch bend and long releases.....you will find the pitch after the time of key off release will be unnafected by the ribbon... but everything held down will be affected.... example... repeat a single note while ribboning down with long release times you will notice a cascading type effect...same with portamento....notes will hang in a funny pitch if you release before the portamento reaches the intended destination....
-----Original Message-----
From: "cuari7" <cuari7@...>
To: yamahacs80@yahoogroups.com
Date: 10/15/2010 10:58
Subject: [yamahacs80] Re: Having a problem with my CS80

Yeah!!

You were right, my friend.
Shit, I've haad this thing for almost 4 years and never understood the significance of this switch. BTW, I think it was my 3 year-old daughter who was mucking with it.

Thank you so much for the tip!!

jd

>
> what mode is your sustain switch on the lower left panel in?
> i or ii
> if you are in ii, that is mono/poly mode.... if you are in i, there should be no note stealing unless you have hit 8 voices...
> ii mono/poly mode allows you to hold a chord, while playing a monoish meledy.... which cuts releases and utilises monoistic portamento...

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

Re: [yamahacs80] Re: Having a problem with my CS80

2010-10-15 by Tommy Priakos

Has anyone had a horrendous change in pitch in one of the oscilators while playing chords with the sustain going? The slider/fader can be as little as a quarter of the way up on the sustain and I get these off-key drifts that make you cringe.

Sent from my iPhone

Re: [yamahacs80] Re: Having a problem with my CS80

2010-10-15 by T.M. Bois

This happens occasionally on mine and feels like a weird by-product of double-triggering on a few keys at once, especially when I'm playing a more percussive patch with a fast attack and sustain on. I imagine it's something to do with the Key Assigner... maybe an old CMOS chip in need of replacement. Maybe the multiple double-trigger confuses it? But that's just a guess.
Some notes on my CS80 tend to double-trigger quite a bit, but it's something I can get around by adjusting my playing style. Seems to happen most often if I don't lift my finger off a key cleanly after playing a note. I've only ever noticed the wonky pitch thing happening under those circumstances. It's almost like the CS80 is making fun of my sloppy or tentative playing ;)

Show quoted textHide quoted text

--- On Fri, 10/15/10, Tommy Priakos <tpriakos@...> wrote:

From: Tommy Priakos <tpriakos@...>
Subject: Re: [yamahacs80] Re: Having a problem with my CS80
To: "yamahacs80@yahoogroups.com" <yamahacs80@yahoogroups.com>
Received: Friday, October 15, 2010, 3:27 PM

Has anyone had a horrendous change in pitch in one of the oscilators while playing chords with the sustain going? The slider/fader can be as little as a quarter of the way up on the sustain and I get these off-key drifts that make you cringe.

Sent from my iPhone

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

Re[2]: [yamahacs80] Re: Having a problem with my CS80

2010-10-16 by Laurie Curry

those are most likely key contacts... there are 2 spring contacts at the end of each key... if your key bounces a little, the contact can retrigger especially if the contacts have fatigued and have close contacts...
-----Original Message-----
From: "T.M. Bois" <bucklehorse@...>
To: yamahacs80@yahoogroups.com
Date: 10/15/2010 18:09
Subject: Re: [yamahacs80] Re: Having a problem with my CS80

This happens occasionally on mine and feels like a weird by-product of double-triggering on a few keys at once, especially when I'm playing a more percussive patch with a fast attack and sustain on. I imagine it's something to do with the Key Assigner... maybe an old CMOS chip in need of replacement. Maybe the multiple double-trigger confuses it? But that's just a guess.
Some notes on my CS80 tend to double-trigger quite a bit, but it's something I can get around by adjusting my playing style. Seems to happen most often if I don't lift my finger off a key cleanly after playing a note. I've only ever noticed the wonky pitch thing happening under those circumstances. It's almost like the CS80 is making fun of my sloppy or tentative playing ;)

--- On Fri, 10/15/10, Tommy Priakos < tpriakos@...> wrote:

From: Tommy Priakos < tpriakos@...>
Subject: Re: [yamahacs80] Re: Having a problem with my CS80
To: " yamahacs80@yahoogroups.com" < yamahacs80@yahoogroups.com>
Received: Friday, October 15, 2010, 3:27 PM

Has anyone had a horrendous change in pitch in one of the oscilators while playing chords with the sustain going? The slider/fader can be as little as a quarter of the way up on the sustain and I get these off-key drifts that make you cringe.

Sent from my iPhone

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

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

Re[2]: [yamahacs80] Re: Having a problem with my CS80

2010-10-16 by Laurie Curry

see if you get that result with the portamento 'completely off'... the cs80 will hang notes released free of pitch controll ...secondary bounces of contacts have done that before in sustain type i..any portamento will leave hangers if your key bounces in sust i... if your key bounces before portamento time reaches the destination note... your osc will hang in a pitch somewhere between the origin and destination pitch....
-----Original Message-----
From: Tommy Priakos <tpriakos@...>
To: "yamahacs80@yahoogroups.com" <yamahacs80@yahoogroups.com>
Date: 10/15/2010 17:27
Subject: Re: [yamahacs80] Re: Having a problem with my CS80

Has anyone had a horrendous change in pitch in one of the oscilators while playing chords with the sustain going? The slider/fader can be as little as a quarter of the way up on the sustain and I get these off-key drifts that make you cringe.

Sent from my iPhone

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

Re: [yamahacs80] Re: Having a problem with my CS80

2010-10-16 by Max Fazio

It's part'n'parcel of the lovely 80.... ;-)

M

----- Original Message -----

Show quoted textHide quoted text

From: Tommy Priakos
To: yamahacs80@yahoogroups.com
Sent: Saturday, October 16, 2010 12:27 AM
Subject: Re: [yamahacs80] Re: Having a problem with my CS80

Has anyone had a horrendous change in pitch in one of the oscilators while playing chords with the sustain going? The slider/fader can be as little as a quarter of the way up on the sustain and I get these off-key drifts that make you cringe.

Sent from my iPhone

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

Re: Having a problem with my CS80

2011-04-26 by Mike

I can fix the problem if you live in Chicago or want to ship it to me:) Unfortunately, the engineers made an error when they designed the KAS and SH boards. Fortunately, it can be corrected. My fix removes about half of the double triggering too.

Here's how I illustrate the bug to my customers: Play a C chord on the 8' footing in your right hand with two C's an octave apart in the left hand on C1 & C2. Remove your right hand and take your pinky off C1. The C under your thumb should be waaay off now. Now play a B flat1 with your index finger without removing your thumnb on C2 and listen to C2 jump up! The double triggering issue makes the problem more apparent. Long sustain in sustain I makes it more apparent too.

A lot of folks don't even notice because the bass notes are so distorted in machines that haven't been tuned or serviced with new caps.

In my opinion, this bug is one of the reasons that people think the CS series goes out of tune so much and has a bad reputation!

If anybody cares, I'll post an audio file of a CS-60 that I'm about to fix up and a CS-80 that I just fixed the bug on.

-Mike

Show quoted textHide quoted text

--- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@...> wrote:
>
> It's part'n'parcel of the lovely 80.... ;-)
>
> M
> ----- Original Message -----
> From: Tommy Priakos
> To: yamahacs80@yahoogroups.com
> Sent: Saturday, October 16, 2010 12:27 AM
> Subject: Re: [yamahacs80] Re: Having a problem with my CS80
>
>
>
> Has anyone had a horrendous change in pitch in one of the oscilators while playing chords with the sustain going? The slider/fader can be as little as a quarter of the way up on the sustain and I get these off-key drifts that make you cringe.
>
> Sent from my iPhone
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

Re: [yamahacs80] Re: Having a problem with my CS80

2011-05-27 by Max Fazio

Hi Mike
Can you post those files from the CS60 you talked about and get an insight about the KAS' bug? Myself likes the effect a lot...
M

----- Original Message -----

Show quoted textHide quoted text

From: Mike
To: yamahacs80@yahoogroups.com
Sent: Tuesday, April 26, 2011 3:53 AM
Subject: [yamahacs80] Re: Having a problem with my CS80

I can fix the problem if you live in Chicago or want to ship it to me:) Unfortunately, the engineers made an error when they designed the KAS and SH boards. Fortunately, it can be corrected. My fix removes about half of the double triggering too.

Here's how I illustrate the bug to my customers: Play a C chord on the 8' footing in your right hand with two C's an octave apart in the left hand on C1 & C2. Remove your right hand and take your pinky off C1. The C under your thumb should be waaay off now. Now play a B flat1 with your index finger without removing your thumnb on C2 and listen to C2 jump up! The double triggering issue makes the problem more apparent. Long sustain in sustain I makes it more apparent too.

A lot of folks don't even notice because the bass notes are so distorted in machines that haven't been tuned or serviced with new caps.

In my opinion, this bug is one of the reasons that people think the CS series goes out of tune so much and has a bad reputation!

If anybody cares, I'll post an audio file of a CS-60 that I'm about to fix up and a CS-80 that I just fixed the bug on.

-Mike

--- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@...> wrote:
>
> It's part'n'parcel of the lovely 80.... ;-)
>
> M
> ----- Original Message -----
> From: Tommy Priakos
> To: yamahacs80@yahoogroups.com
> Sent: Saturday, October 16, 2010 12:27 AM
> Subject: Re: [yamahacs80] Re: Having a problem with my CS80
>
>
>
> Has anyone had a horrendous change in pitch in one of the oscilators while playing chords with the sustain going? The slider/fader can be as little as a quarter of the way up on the sustain and I get these off-key drifts that make you cringe.
>
> Sent from my iPhone
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

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

Re: Re: [yamahacs80] Re: Having a problem with my CS80

2011-05-28 by kirkbyte@optusnet.com.au

Hey Mike,

Are you able to describe the fix/modification in general terms?

Andrew K

Show quoted textHide quoted text

> Max Fazio <faxiomas@...> wrote:
>
> Hi Mike
> Can you post those files from the CS60 you talked about and get an
> insight about the KAS' bug? Myself likes the effect a lot...
> M
> ----- Original Message -----
> From: Mike
> To: yamahacs80@yahoogroups.com
> Sent: Tuesday, April 26, 2011 3:53 AM
> Subject: [yamahacs80] Re: Having a problem with my CS80
>
>
>
> I can fix the problem if you live in Chicago or want to ship it to
> me:) Unfortunately, the engineers made an error when they designed the
> KAS and SH boards. Fortunately, it can be corrected. My fix removes
> about half of the double triggering too.
>
> Here's how I illustrate the bug to my customers: Play a C chord on the
> 8' footing in your right hand with two C's an octave apart in the left
> hand on C1 & C2. Remove your right hand and take your pinky off C1. The
> C under your thumb should be waaay off now. Now play a B flat1 with your
> index finger without removing your thumnb on C2 and listen to C2 jump
> up! The double triggering issue makes the problem more apparent. Long
> sustain in sustain I makes it more apparent too.
>
> A lot of folks don't even notice because the bass notes are so
> distorted in machines that haven't been tuned or serviced with new caps.
>
> In my opinion, this bug is one of the reasons that people think the CS
> series goes out of tune so much and has a bad reputation!
>
> If anybody cares, I'll post an audio file of a CS-60 that I'm about to
> fix up and a CS-80 that I just fixed the bug on.
>
> -Mike
>
> --- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@...> wrote:
> >
> > It's part'n'parcel of the lovely 80.... ;-)
> >
> > M
> > ----- Original Message -----
> > From: Tommy Priakos
> > To: yamahacs80@yahoogroups.com
> > Sent: Saturday, October 16, 2010 12:27 AM
> > Subject: Re: [yamahacs80] Re: Having a problem with my CS80
> >
> >
> >
> > Has anyone had a horrendous change in pitch in one of the oscilators
> while playing chords with the sustain going? The slider/fader can be as
> little as a quarter of the way up on the sustain and I get these off-key
> drifts that make you cringe.
> >
> > Sent from my iPhone
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
>
>
>
>
> [Non-text portions of this message have been removed]

[yamahacs80] Re: Having a problem with my CS80

2011-05-30 by Mike

Hey, I almost forgot about this thread. I'm planning on posting some audio files soon. Kent Spong's tracks inspired me to do so. It's really cool to hear his work and how the CS80 responds to the replacement parts he selected!

What sort of problems are you having and what have you replaced in the machine that is having problems? I wouldn't even bother with any mods unless you have replaced all of the CMOS, Op-Amps, and electrolytics.

Show quoted textHide quoted text

--- In yamahacs80@yahoogroups.com, kirkbyte@... wrote:
>
> Hey Mike,
>
> Are you able to describe the fix/modification in general terms?
>
>
> Andrew K
>
>
> > Max Fazio <faxiomas@...> wrote:
> >
> > Hi Mike
> > Can you post those files from the CS60 you talked about and get an
> > insight about the KAS' bug? Myself likes the effect a lot...
> > M
> > ----- Original Message -----
> > From: Mike
> > To: yamahacs80@yahoogroups.com
> > Sent: Tuesday, April 26, 2011 3:53 AM
> > Subject: [yamahacs80] Re: Having a problem with my CS80
> >
> >
> >
> > I can fix the problem if you live in Chicago or want to ship it to
> > me:) Unfortunately, the engineers made an error when they designed the
> > KAS and SH boards. Fortunately, it can be corrected. My fix removes
> > about half of the double triggering too.
> >
> > Here's how I illustrate the bug to my customers: Play a C chord on the
> > 8' footing in your right hand with two C's an octave apart in the left
> > hand on C1 & C2. Remove your right hand and take your pinky off C1. The
> > C under your thumb should be waaay off now. Now play a B flat1 with your
> > index finger without removing your thumnb on C2 and listen to C2 jump
> > up! The double triggering issue makes the problem more apparent. Long
> > sustain in sustain I makes it more apparent too.
> >
> > A lot of folks don't even notice because the bass notes are so
> > distorted in machines that haven't been tuned or serviced with new caps.
> >
> > In my opinion, this bug is one of the reasons that people think the CS
> > series goes out of tune so much and has a bad reputation!
> >
> > If anybody cares, I'll post an audio file of a CS-60 that I'm about to
> > fix up and a CS-80 that I just fixed the bug on.
> >
> > -Mike
> >
> > --- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@> wrote:
> > >
> > > It's part'n'parcel of the lovely 80.... ;-)
> > >
> > > M
> > > ----- Original Message -----
> > > From: Tommy Priakos
> > > To: yamahacs80@yahoogroups.com
> > > Sent: Saturday, October 16, 2010 12:27 AM
> > > Subject: Re: [yamahacs80] Re: Having a problem with my CS80
> > >
> > >
> > >
> > > Has anyone had a horrendous change in pitch in one of the oscilators
> > while playing chords with the sustain going? The slider/fader can be as
> > little as a quarter of the way up on the sustain and I get these off-key
> > drifts that make you cringe.
> > >
> > > Sent from my iPhone
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
>

Re: [yamahacs80] Re: Having a problem with my CS80

2011-05-30 by Max Fazio

Hi Mike
Personally I'd just like to know something about the process in the KAS leading to that drift, anything in the FIFO or else in the encoding-decoding process?
Thx for your insight!
M

----- Original Message -----

Show quoted textHide quoted text

From: Mike
To: yamahacs80@yahoogroups.com
Sent: Monday, May 30, 2011 2:09 AM
Subject: [yamahacs80] Re: Having a problem with my CS80

Hey, I almost forgot about this thread. I'm planning on posting some audio files soon. Kent Spong's tracks inspired me to do so. It's really cool to hear his work and how the CS80 responds to the replacement parts he selected!

What sort of problems are you having and what have you replaced in the machine that is having problems? I wouldn't even bother with any mods unless you have replaced all of the CMOS, Op-Amps, and electrolytics.

--- In yamahacs80@yahoogroups.com, kirkbyte@... wrote:
>
> Hey Mike,
>
> Are you able to describe the fix/modification in general terms?
>
>
> Andrew K
>
>
> > Max Fazio <faxiomas@...> wrote:
> >
> > Hi Mike
> > Can you post those files from the CS60 you talked about and get an
> > insight about the KAS' bug? Myself likes the effect a lot...
> > M
> > ----- Original Message -----
> > From: Mike
> > To: yamahacs80@yahoogroups.com
> > Sent: Tuesday, April 26, 2011 3:53 AM
> > Subject: [yamahacs80] Re: Having a problem with my CS80
> >
> >
> >
> > I can fix the problem if you live in Chicago or want to ship it to
> > me:) Unfortunately, the engineers made an error when they designed the
> > KAS and SH boards. Fortunately, it can be corrected. My fix removes
> > about half of the double triggering too.
> >
> > Here's how I illustrate the bug to my customers: Play a C chord on the
> > 8' footing in your right hand with two C's an octave apart in the left
> > hand on C1 & C2. Remove your right hand and take your pinky off C1. The
> > C under your thumb should be waaay off now. Now play a B flat1 with your
> > index finger without removing your thumnb on C2 and listen to C2 jump
> > up! The double triggering issue makes the problem more apparent. Long
> > sustain in sustain I makes it more apparent too.
> >
> > A lot of folks don't even notice because the bass notes are so
> > distorted in machines that haven't been tuned or serviced with new caps.
> >
> > In my opinion, this bug is one of the reasons that people think the CS
> > series goes out of tune so much and has a bad reputation!
> >
> > If anybody cares, I'll post an audio file of a CS-60 that I'm about to
> > fix up and a CS-80 that I just fixed the bug on.
> >
> > -Mike
> >
> > --- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@> wrote:
> > >
> > > It's part'n'parcel of the lovely 80.... ;-)
> > >
> > > M
> > > ----- Original Message -----
> > > From: Tommy Priakos
> > > To: yamahacs80@yahoogroups.com
> > > Sent: Saturday, October 16, 2010 12:27 AM
> > > Subject: Re: [yamahacs80] Re: Having a problem with my CS80
> > >
> > >
> > >
> > > Has anyone had a horrendous change in pitch in one of the oscilators
> > while playing chords with the sustain going? The slider/fader can be as
> > little as a quarter of the way up on the sustain and I get these off-key
> > drifts that make you cringe.
> > >
> > > Sent from my iPhone
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
>

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