CS-80: What's the normal stereo output balance between L-R channels?


Mathias Tjonn
 
Edited

Greetings good people,

Hope this message finds everyone well. I've gotten my CS-80 back from servicing recently, beyond excited. She's never functioned properly as long as I've owned her so I can't be certain, but the stereo L/R output seems unusually imbalanced (there's a 8-12dB difference between the two). My tech is occupied at the moment and not currently available for a follow-up, so I thought I would check with the community here. For those of you who have fully working CS-80s, what's does the proper/normal stereo balance look and sound like?

Best,

Mathias


slammah2006
 

the only stereo is from the chorus (leslie) circuit.... when the chorus circuit is set to on,  the two outputs will be out of phase like a parked leslie ...tremollo on is fast leslie  chorus on is slow... there is a short ramp time... the outputs should be the same level with chorus circuit off
w leslie


---- On Wed, 15 Apr 2020 16:47:23 -0400 Mathias Tjonn <mathiastjoenn@...> wrote ----

[Edited Message Follows]

Greetings good people,

Hope this message finds everyone well. I've gotten my CS-80 back from servicing recently, beyond excited. She's never functioned properly as long as I've owned her so I can't be certain, but the stereo L/R output seems unusually imbalanced (there's a 8-12dB difference between the two). My tech is occupied at the moment and not currently available for a follow-up, so I thought I would check with the community here. For those of you who have fully working CS-80s, what's does the proper/normal stereo balance look and sound like?

Best,

Mathias






Mert Topel
 

Hi Matthias,

The L/R balance on my CS-80 is equal like it should on any stereo keyboard. You can try checking the high/low output selector switch.
It may collect dust or get corrosion which may affect the output balance.

Good luck!

On 15 Apr 2020 Wed at 23:47 Mathias Tjonn <mathiastjoenn@...> wrote:

Greetings good people,

Hope this message finds everyone well. I've gotten my CS-80 back from servicing recently, beyond excited. She's never functioned properly as long as I've owned her so I can't be certain, but the stereo L+R output seems unusually imbalanced (there's a 8-12dB difference between the two). My tech is occupied at the moment and not currently available for a follow-up, so I thought I would check with the community here. For those of you who have fully working CS-80s, what's does the proper/normal stereo balance look and sound like?

Best,

Mathias

--


Mathias Tjonn
 

Hello again,

 

Than you slammah2006 and Mert for your input! The volume discrepancy between L and R channels is the same with or without the chorus engaged, approx 20dB according to my DAW channel meter (attached screen grab below). Tried toggling the high/low output selector switch as well + swapping cables and cleaning the outputs with deoxit. No change as yet.

Further suggestions if anyone has ideas, would be greatly appreciated!

Mathias




Joachim Milson
 

Hi Mathias,

Since the chorus does not have an effect on your issue, chances are that the source of the problem is after the chorus.
If you look at the overall diagram, you'll notice that the audio signal leaving the chorus goes through two circuits, both located on the PRA board, before reaching the output.
The first is dedicated to the EXP effect and the second to the preamplifier. There are 5 variable resistors located there VR11, VR12, VR6, VR7, and VR8. You could check them.
Have a look at page 29 of the adjustment procedure guide.

Joachim


reboot paris
 

Hello

You should wait your tech it's certainly a problem on a board ,the pra maybe .
If you don't know the synth never open it .
Just blend the 2 signals .
As i remember it's a "Fake" stéréo.
Hope it helps .


Envoyé d’Outlook Mobile


From: yamahaCS80fans@groups.io <yamahaCS80fans@groups.io> on behalf of Mathias Tjonn <mathiastjoenn@...>
Sent: Monday, April 20, 2020 4:58:09 PM
To: yamahaCS80fans@groups.io <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?
 

Hello again,

 

Than you slammah2006 and Mert for your input! The volume discrepancy between L and R channels is the same with or without the chorus engaged, approx 20dB according to my DAW channel meter (attached screen grab below). Tried toggling the high/low output selector switch as well + swapping cables and cleaning the outputs with deoxit. No change as yet.

Further suggestions if anyone has ideas, would be greatly appreciated!

Mathias




Mert Topel
 

Did you get my reply?


On 16 Apr 2020 Thu at 14:08 Mathias Tjonn <mathiastjoenn@...> wrote:

[Edited Message Follows]

Greetings good people,

Hope this message finds everyone well. I've gotten my CS-80 back from servicing recently, beyond excited. She's never functioned properly as long as I've owned her so I can't be certain, but the stereo L/R output seems unusually imbalanced (there's a 8-12dB difference between the two). My tech is occupied at the moment and not currently available for a follow-up, so I thought I would check with the community here. For those of you who have fully working CS-80s, what's does the proper/normal stereo balance look and sound like?

Best,

Mathias

--


Mathias Tjonn
 

Hello everyone,

 

Thank you for the input! Joachim Milson, I have a voltmeter and can do basic diagnostics, but as reboot paris points out, I might be better to leave it to a professional. Though my tech lives in England and I'm in Norway (and I'm not dealing with international shipping again for such a small issue), so would likely have to do the work myself with his guidance. Will think about whether or not I'm the right guy for the job and if not, how I can prepare/train to get better.

Mert, thank you for the response. I think I did get your reply, about trying to toggle the high/low output switch on the back? I tried that, no success so far. Would using deoxit perhaps be of help?

 

Thank a lot for the replies so far,

Mathias


Stan Valiulis
 

Hi Everyone,

I appreciate hearing all this information.  My CS-80 needs some work  Mike Borish does it for me.  Both the square and sign wave are on all the time on the top channel.  I also have a voice that is intermittent.  I can still enjoy playing it.

 

I was going to check my MIDI for a member and lost his name.  If you are still in the group I can check it this weekend. 

 

I live in Chicago.  Take Care all.

 

 

 

 

Stanley Valiulis

Co-Founder  Operations

815-608-0884

www.totesbabies.com

 

 

 

 

 

From: <yamahaCS80fans@groups.io> on behalf of Mathias Tjonn <mathiastjoenn@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Wednesday, April 22, 2020 at 6:19 AM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?

 

Hello everyone,

 

Thank you for the input! Joachim Milson, I have a voltmeter and can do basic diagnostics, but as reboot paris points out, I might be better to leave it to a professional. Though my tech lives in England and I'm in Norway (and I'm not dealing with international shipping again for such a small issue), so would likely have to do the work myself with his guidance. Will think about whether or not I'm the right guy for the job and if not, how I can prepare/train to get better.

Mert, thank you for the response. I think I did get your reply, about trying to toggle the high/low output switch on the back? I tried that, no success so far. Would using deoxit perhaps be of help?

 

Thank a lot for the replies so far,

Mathias


Scott Rodriguez
 

If you want to try a couple of diagnostics...

Does the relative offset between channels stay the same when rotating the volume knob?
Does the relative offset between channels stay the same when operating the expression pedal?

These are two separate systems. Check if the volume for both channels moves up and down together with either system. If not, you probably found which system is the problem. 

If they both work as expected and the offset between channels remains constant when moving the volume knob or the pedal, the problem is upstream of the expression pedal circuit.


On Wed, Apr 22, 2020 at 7:19 AM Mathias Tjonn <mathiastjoenn@...> wrote:

Hello everyone,

 

Thank you for the input! Joachim Milson, I have a voltmeter and can do basic diagnostics, but as reboot paris points out, I might be better to leave it to a professional. Though my tech lives in England and I'm in Norway (and I'm not dealing with international shipping again for such a small issue), so would likely have to do the work myself with his guidance. Will think about whether or not I'm the right guy for the job and if not, how I can prepare/train to get better.

Mert, thank you for the response. I think I did get your reply, about trying to toggle the high/low output switch on the back? I tried that, no success so far. Would using deoxit perhaps be of help?

 

Thank a lot for the replies so far,

Mathias


Alexander488
 

Hi Stan, I was the one asking about the midi. Here is my original plea for help:

I recently had a Kenton Midi Kit installed into a CS80. It looks like something was not done correctly during the installation, since the mod and pitch wheels are not working. I have tried 2 different controllers; notes are being triggered, aftertouch and program changes work, but the wheels do not... It does not matter if the toggle switch is up or down.. I have tried to reset the midi mode, which returns everything to the default settings, but no success. Has anyone else had a similar experience?

Also I am not sure if the red button is working properly. I spoke with Harry at Kenton, and when you enter midi program mode (by hitting the button 2 times in succession) there should be no sound being triggered in the CS80 when you play different keys on the controller, to assign different midi settings. But when I am in the midi program mode, the CS is still playing notes from the controller. The transpose mode does seem to be working. Harry was not 100% sure there should be no sound, since he did not have a CS80 in the shop. Can anyone tell me if I should here notes triggered from the CS while its in midi program mode?

Any help would be greatly appreciated!

Best regards,

Alex

On Apr 22, 2020, at 6:28 AM, Stan Valiulis <scvaliulis@...> wrote:

Hi Everyone,
I appreciate hearing all this information.  My CS-80 needs some work  Mike Borish does it for me.  Both the square and sign wave are on all the time on the top channel.  I also have a voice that is intermittent.  I can still enjoy playing it. 
 
I was going to check my MIDI for a member and lost his name.  If you are still in the group I can check it this weekend.  
 
I live in Chicago.  Take Care all. 
 
 
 
 
Stanley Valiulis 
Co-Founder  Operations
815-608-0884
<image001.png>
 
 
 
 
 
From: <yamahaCS80fans@groups.io> on behalf of Mathias Tjonn <mathiastjoenn@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Wednesday, April 22, 2020 at 6:19 AM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?
 
Hello everyone,
 
Thank you for the input! Joachim Milson, I have a voltmeter and can do basic diagnostics, but as reboot paris points out, I might be better to leave it to a professional. Though my tech lives in England and I'm in Norway (and I'm not dealing with international shipping again for such a small issue), so would likely have to do the work myself with his guidance. Will think about whether or not I'm the right guy for the job and if not, how I can prepare/train to get better.

Mert, thank you for the response. I think I did get your reply, about trying to toggle the high/low output switch on the back? I tried that, no success so far. Would using deoxit perhaps be of help?
 
Thank a lot for the replies so far,
Mathias



Stan Valiulis
 

Hi Alex,

 

Maybe I can hook up my CS80 to my Kronos and we can talk through this on the phone this weekend.  What time zone are you in? 

 

Stanley Valiulis

Co-Founder  Operations

815-608-0884

www.totesbabies.com

 

 

 

 

 

From: <yamahaCS80fans@groups.io> on behalf of Alexander488 <alexander488@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Wednesday, April 22, 2020 at 12:58 PM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?

 

Hi Stan, I was the one asking about the midi. Here is my original plea for help:

 

I recently had a Kenton Midi Kit installed into a CS80. It looks like something was not done correctly during the installation, since the mod and pitch wheels are not working. I have tried 2 different controllers; notes are being triggered, aftertouch and program changes work, but the wheels do not... It does not matter if the toggle switch is up or down.. I have tried to reset the midi mode, which returns everything to the default settings, but no success. Has anyone else had a similar experience?

Also I am not sure if the red button is working properly. I spoke with Harry at Kenton, and when you enter midi program mode (by hitting the button 2 times in succession) there should be no sound being triggered in the CS80 when you play different keys on the controller, to assign different midi settings. But when I am in the midi program mode, the CS is still playing notes from the controller. The transpose mode does seem to be working. Harry was not 100% sure there should be no sound, since he did not have a CS80 in the shop. Can anyone tell me if I should here notes triggered from the CS while its in midi program mode?

Any help would be greatly appreciated!

Best regards,

Alex



On Apr 22, 2020, at 6:28 AM, Stan Valiulis <scvaliulis@...> wrote:

 

Hi Everyone,

I appreciate hearing all this information.  My CS-80 needs some work  Mike Borish does it for me.  Both the square and sign wave are on all the time on the top channel.  I also have a voice that is intermittent.  I can still enjoy playing it. 

 

I was going to check my MIDI for a member and lost his name.  If you are still in the group I can check it this weekend.  

 

I live in Chicago.  Take Care all. 

 

 

 

 

Stanley Valiulis 

Co-Founder  Operations

815-608-0884

<image001.png>

 

 

 

 

 

From: <yamahaCS80fans@groups.io> on behalf of Mathias Tjonn <mathiastjoenn@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Wednesday, April 22, 2020 at 6:19 AM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?

 

Hello everyone,

 

Thank you for the input! Joachim Milson, I have a voltmeter and can do basic diagnostics, but as reboot paris points out, I might be better to leave it to a professional. Though my tech lives in England and I'm in Norway (and I'm not dealing with international shipping again for such a small issue), so would likely have to do the work myself with his guidance. Will think about whether or not I'm the right guy for the job and if not, how I can prepare/train to get better.

Mert, thank you for the response. I think I did get your reply, about trying to toggle the high/low output switch on the back? I tried that, no success so far. Would using deoxit perhaps be of help?

 

Thank a lot for the replies so far,

Mathias

 


Mathias Tjonn
 

Hi everyone,

 

Thanks Scott, for the suggestion! I don't have the expression pedal I'm afraid, but when moving the volume know both L+R volumes change similarly and the offset remains the same. Is there any other way of testing whether or not the issue could be with the expression pedal circuit, beyond operating it?

 

Best, Mathias


Scott Rodriguez
 

There really isn't a good way to test that circuit other than an expression pedal, but a standard Yamaha FC7 pedal will work if you have one, that is, it doesn't have to be the original light-activated pedal, 

Don't use a Roland pedal however.

On Thu, Apr 23, 2020 at 4:16 PM Mathias Tjonn <mathiastjoenn@...> wrote:

Hi everyone,

 

Thanks Scott, for the suggestion! I don't have the expression pedal I'm afraid, but when moving the volume know both L+R volumes change similarly and the offset remains the same. Is there any other way of testing whether or not the issue could be with the expression pedal circuit, beyond operating it?

 

Best, Mathias


Mathias Tjonn
 

Thanks Scott, I'll go out and get me an FC7 pedal today and report back! Best, M


reboot paris
 

Hello
Why don't you take a look at the service manual ?

Envoyé d’Outlook Mobile


From: yamahaCS80fans@groups.io <yamahaCS80fans@groups.io> on behalf of Mathias Tjonn <mathiastjoenn@...>
Sent: Friday, April 24, 2020 10:14:24 AM
To: yamahaCS80fans@groups.io <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?
 
Thanks Scott, I'll go out and get me an FC7 pedal today and report back! Best, M


Alexander488
 

Hi Stan, that would be great! I am in Central Time.

Thanks

On Apr 23, 2020, at 6:53 AM, Stan Valiulis <scvaliulis@...> wrote:

Hi Alex,
 
Maybe I can hook up my CS80 to my Kronos and we can talk through this on the phone this weekend.  What time zone are you in?  
 
Stanley Valiulis 
Co-Founder  Operations
815-608-0884
<image001.png>
 
 
 
 
 
From: <yamahaCS80fans@groups.io> on behalf of Alexander488 <alexander488@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Wednesday, April 22, 2020 at 12:58 PM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?
 
Hi Stan, I was the one asking about the midi. Here is my original plea for help:
 
I recently had a Kenton Midi Kit installed into a CS80. It looks like something was not done correctly during the installation, since the mod and pitch wheels are not working. I have tried 2 different controllers; notes are being triggered, aftertouch and program changes work, but the wheels do not... It does not matter if the toggle switch is up or down.. I have tried to reset the midi mode, which returns everything to the default settings, but no success. Has anyone else had a similar experience?

Also I am not sure if the red button is working properly. I spoke with Harry at Kenton, and when you enter midi program mode (by hitting the button 2 times in succession) there should be no sound being triggered in the CS80 when you play different keys on the controller, to assign different midi settings. But when I am in the midi program mode, the CS is still playing notes from the controller. The transpose mode does seem to be working. Harry was not 100% sure there should be no sound, since he did not have a CS80 in the shop. Can anyone tell me if I should here notes triggered from the CS while its in midi program mode?

Any help would be greatly appreciated!

Best regards,

Alex


On Apr 22, 2020, at 6:28 AM, Stan Valiulis <scvaliulis@...> wrote:
 
Hi Everyone,
I appreciate hearing all this information.  My CS-80 needs some work  Mike Borish does it for me.  Both the square and sign wave are on all the time on the top channel.  I also have a voice that is intermittent.  I can still enjoy playing it. 
 
I was going to check my MIDI for a member and lost his name.  If you are still in the group I can check it this weekend.  
 
I live in Chicago.  Take Care all. 
 
 
 
 
Stanley Valiulis 
Co-Founder  Operations
815-608-0884
<image001.png>
 
 
 
 
 
From: <yamahaCS80fans@groups.io> on behalf of Mathias Tjonn <mathiastjoenn@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Wednesday, April 22, 2020 at 6:19 AM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?
 
Hello everyone,
 
Thank you for the input! Joachim Milson, I have a voltmeter and can do basic diagnostics, but as reboot paris points out, I might be better to leave it to a professional. Though my tech lives in England and I'm in Norway (and I'm not dealing with international shipping again for such a small issue), so would likely have to do the work myself with his guidance. Will think about whether or not I'm the right guy for the job and if not, how I can prepare/train to get better.

Mert, thank you for the response. I think I did get your reply, about trying to toggle the high/low output switch on the back? I tried that, no success so far. Would using deoxit perhaps be of help?
 
Thank a lot for the replies so far,
Mathias
 



Stan Valiulis
 

Alex,  How about tomorrow afternoon about 1:00?    What city are you in? 

 

Stanley Valiulis

Co-Founder  Operations

815-608-0884

www.totesbabies.com

 

 

 

 

 

From: <yamahaCS80fans@groups.io> on behalf of Alexander488 <alexander488@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Friday, April 24, 2020 at 9:21 AM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?

 

Hi Stan, that would be great! I am in Central Time.

 

Thanks



On Apr 23, 2020, at 6:53 AM, Stan Valiulis <scvaliulis@...> wrote:

 

Hi Alex,

 

Maybe I can hook up my CS80 to my Kronos and we can talk through this on the phone this weekend.  What time zone are you in?  

 

Stanley Valiulis 

Co-Founder  Operations

815-608-0884

<image001.png>

 

 

 

 

 

From: <yamahaCS80fans@groups.io> on behalf of Alexander488 <alexander488@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Wednesday, April 22, 2020 at 12:58 PM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?

 

Hi Stan, I was the one asking about the midi. Here is my original plea for help:

 

I recently had a Kenton Midi Kit installed into a CS80. It looks like something was not done correctly during the installation, since the mod and pitch wheels are not working. I have tried 2 different controllers; notes are being triggered, aftertouch and program changes work, but the wheels do not... It does not matter if the toggle switch is up or down.. I have tried to reset the midi mode, which returns everything to the default settings, but no success. Has anyone else had a similar experience?

Also I am not sure if the red button is working properly. I spoke with Harry at Kenton, and when you enter midi program mode (by hitting the button 2 times in succession) there should be no sound being triggered in the CS80 when you play different keys on the controller, to assign different midi settings. But when I am in the midi program mode, the CS is still playing notes from the controller. The transpose mode does seem to be working. Harry was not 100% sure there should be no sound, since he did not have a CS80 in the shop. Can anyone tell me if I should here notes triggered from the CS while its in midi program mode?

Any help would be greatly appreciated!

Best regards,

Alex




On Apr 22, 2020, at 6:28 AM, Stan Valiulis <scvaliulis@...> wrote:

 

Hi Everyone,

I appreciate hearing all this information.  My CS-80 needs some work  Mike Borish does it for me.  Both the square and sign wave are on all the time on the top channel.  I also have a voice that is intermittent.  I can still enjoy playing it. 

 

I was going to check my MIDI for a member and lost his name.  If you are still in the group I can check it this weekend.  

 

I live in Chicago.  Take Care all. 

 

 

 

 

Stanley Valiulis 

Co-Founder  Operations

815-608-0884

<image001.png>

 

 

 

 

 

From: <yamahaCS80fans@groups.io> on behalf of Mathias Tjonn <mathiastjoenn@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Wednesday, April 22, 2020 at 6:19 AM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?

 

Hello everyone,

 

Thank you for the input! Joachim Milson, I have a voltmeter and can do basic diagnostics, but as reboot paris points out, I might be better to leave it to a professional. Though my tech lives in England and I'm in Norway (and I'm not dealing with international shipping again for such a small issue), so would likely have to do the work myself with his guidance. Will think about whether or not I'm the right guy for the job and if not, how I can prepare/train to get better.

Mert, thank you for the response. I think I did get your reply, about trying to toggle the high/low output switch on the back? I tried that, no success so far. Would using deoxit perhaps be of help?

 

Thank a lot for the replies so far,

Mathias

 

 


Alexander488
 

That’s perfect, I can call you then. I am in Houston

On Apr 24, 2020, at 9:34 AM, Stan Valiulis <scvaliulis@...> wrote:



Alex,  How about tomorrow afternoon about 1:00?    What city are you in? 

 

Stanley Valiulis

Co-Founder  Operations

815-608-0884

www.totesbabies.com

<image001.png>

 

 

 

 

 

From: <yamahaCS80fans@groups.io> on behalf of Alexander488 <alexander488@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Friday, April 24, 2020 at 9:21 AM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?

 

Hi Stan, that would be great! I am in Central Time.

 

Thanks



On Apr 23, 2020, at 6:53 AM, Stan Valiulis <scvaliulis@...> wrote:

 

Hi Alex,

 

Maybe I can hook up my CS80 to my Kronos and we can talk through this on the phone this weekend.  What time zone are you in?  

 

Stanley Valiulis 

Co-Founder  Operations

815-608-0884

<image001.png>

 

 

 

 

 

From: <yamahaCS80fans@groups.io> on behalf of Alexander488 <alexander488@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Wednesday, April 22, 2020 at 12:58 PM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?

 

Hi Stan, I was the one asking about the midi. Here is my original plea for help:

 

I recently had a Kenton Midi Kit installed into a CS80. It looks like something was not done correctly during the installation, since the mod and pitch wheels are not working. I have tried 2 different controllers; notes are being triggered, aftertouch and program changes work, but the wheels do not... It does not matter if the toggle switch is up or down.. I have tried to reset the midi mode, which returns everything to the default settings, but no success. Has anyone else had a similar experience?

Also I am not sure if the red button is working properly. I spoke with Harry at Kenton, and when you enter midi program mode (by hitting the button 2 times in succession) there should be no sound being triggered in the CS80 when you play different keys on the controller, to assign different midi settings. But when I am in the midi program mode, the CS is still playing notes from the controller. The transpose mode does seem to be working. Harry was not 100% sure there should be no sound, since he did not have a CS80 in the shop. Can anyone tell me if I should here notes triggered from the CS while its in midi program mode?

Any help would be greatly appreciated!

Best regards,

Alex




On Apr 22, 2020, at 6:28 AM, Stan Valiulis <scvaliulis@...> wrote:

 

Hi Everyone,

I appreciate hearing all this information.  My CS-80 needs some work  Mike Borish does it for me.  Both the square and sign wave are on all the time on the top channel.  I also have a voice that is intermittent.  I can still enjoy playing it. 

 

I was going to check my MIDI for a member and lost his name.  If you are still in the group I can check it this weekend.  

 

I live in Chicago.  Take Care all. 

 

 

 

 

Stanley Valiulis 

Co-Founder  Operations

815-608-0884

<image001.png>

 

 

 

 

 

From: <yamahaCS80fans@groups.io> on behalf of Mathias Tjonn <mathiastjoenn@...>
Reply-To: <yamahaCS80fans@groups.io>
Date: Wednesday, April 22, 2020 at 6:19 AM
To: <yamahaCS80fans@groups.io>
Subject: Re: [yamahaCS80fans] CS-80: What's the normal stereo output balance between L-R channels?

 

Hello everyone,

 

Thank you for the input! Joachim Milson, I have a voltmeter and can do basic diagnostics, but as reboot paris points out, I might be better to leave it to a professional. Though my tech lives in England and I'm in Norway (and I'm not dealing with international shipping again for such a small issue), so would likely have to do the work myself with his guidance. Will think about whether or not I'm the right guy for the job and if not, how I can prepare/train to get better.

Mert, thank you for the response. I think I did get your reply, about trying to toggle the high/low output switch on the back? I tried that, no success so far. Would using deoxit perhaps be of help?

 

Thank a lot for the replies so far,

Mathias

 

 


Mathias Tjonn
 

Hi Scott,

 

I bought an FC7 pedal, but it doesn't seem to work with my CS-80 (or there's another issue somewhere), there's no discernible difference when pedaling.

I did try checking if the relative offset is the same when rotating the volume main, and the answer is yes. I guess this means the PRA-board is the issue?

Reboot Paris, I did check the service manual, but didn't find any mention of this issue. But perhaps the next step is to find someone locally to help me check and calibrate the values indicated in the manual. Or learn to do it myself (won't experiment on the CS-80 though, she's too valuable and fragile).

 

Best, Mathias