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Re: HIgh Pitched Whine

 

Decoupling caps are never a bad place to start looking though. They must be 40 years old.

Illuminated push buttons? There aren't any illuminated push buttons on a CS50?



On Sunday, 10 January 2016, 'Stephen Parsick' wavecomputer360@... [yamahacs80] <yamahacs80@...> wrote:
?

Don't take my word for it, I can only vaguely remember what was written in the interview. I seem to remember that it had something to do with the illuminated push buttons as well.
?
Maybe some other German-speaking member of this group has the issue at hand?
?
Stephen
?
Gesendet:?Sonntag, 10. Januar 2016 um 07:55 Uhr
Von:?"Bob Stewart bob@... [yamahacs80]" <yamahacs80@...>
An:?"yamahacs80@..." <yamahacs80@...>
Betreff:?Re: [yamahacs80] HIgh Pitched Whine
?

Not had the time to investigatefor a while, but am aiming to get stuck in again next month.

Reckon the fitst thing to do is look at decoupling caps.
Bane of my life this CS ;-)
?
B?

On Saturday, 9 January 2016, 'Stephen Parsick' [yamahacs80] <> wrote:
?

?

A while ago there was a report on a German synth collector/musician in KEYBOARDS magazine in which he described this problem. He had some decoupling capacitors replaced which fixed the problem -- maybe someone could look up more accurate details?
?
Stephen?
?
Gesendet:?Samstag, 09. Januar 2016 um 18:18 Uhr
Von:?"fanwander@... [yamahacs80]" <yamahacs80@...>
An:?yamahacs80@...
Betreff:?Re: [yamahacs80] HIgh Pitched Whine
?

Did you succeed fixing this 5kHz whining?

?

?

?

?


Re: HIgh Pitched Whine

 

Don't take my word for it, I can only vaguely remember what was written in the interview. I seem to remember that it had something to do with the illuminated push buttons as well.
?
Maybe some other German-speaking member of this group has the issue at hand?
?
Stephen
?
Gesendet:?Sonntag, 10. Januar 2016 um 07:55 Uhr
Von:?"Bob Stewart bob@... [yamahacs80]"
An:?"yamahacs80@..."
Betreff:?Re: [yamahacs80] HIgh Pitched Whine
?

Not had the time to investigatefor a while, but am aiming to get stuck in again next month.

Reckon the fitst thing to do is look at decoupling caps.
Bane of my life this CS ;-)
?
B?

On Saturday, 9 January 2016, 'Stephen Parsick' wavecomputer360@... [yamahacs80] <yamahacs80@...> wrote:

?

?

A while ago there was a report on a German synth collector/musician in KEYBOARDS magazine in which he described this problem. He had some decoupling capacitors replaced which fixed the problem -- maybe someone could look up more accurate details?
?
Stephen?
?
Gesendet:?Samstag, 09. Januar 2016 um 18:18 Uhr
Von:?"fanwander@... [yamahacs80]" <yamahacs80@...>
An:?yamahacs80@...
Betreff:?Re: [yamahacs80] HIgh Pitched Whine
?

Did you succeed fixing this 5kHz whining?

?

?

?

?


Re: HIgh Pitched Whine

 

Not had the time to investigatefor a while, but am aiming to get stuck in again next month.
Reckon the fitst thing to do is look at decoupling caps.
Bane of my life this CS ;-)

B?


On Saturday, 9 January 2016, 'Stephen Parsick' wavecomputer360@... [yamahacs80] <yamahacs80@...> wrote:
?

A while ago there was a report on a German synth collector/musician in KEYBOARDS magazine in which he described this problem. He had some decoupling capacitors replaced which fixed the problem -- maybe someone could look up more accurate details?
?
Stephen?
?
Gesendet:?Samstag, 09. Januar 2016 um 18:18 Uhr
Von:?"fanwander@... [yamahacs80]" <yamahacs80@...>
An:?yamahacs80@...
Betreff:?Re: [yamahacs80] HIgh Pitched Whine
?

Did you succeed fixing this 5kHz whining?


Re: HIgh Pitched Whine

 

A while ago there was a report on a German synth collector/musician in KEYBOARDS magazine in which he described this problem. He had some decoupling capacitors replaced which fixed the problem -- maybe someone could look up more accurate details?
?
Stephen?
?
Gesendet:?Samstag, 09. Januar 2016 um 18:18 Uhr
Von:?"fanwander@... [yamahacs80]"
An:?yamahacs80@...
Betreff:?Re: [yamahacs80] HIgh Pitched Whine
?

Did you succeed fixing this 5kHz whining?


Re: HIgh Pitched Whine

 

Did you succeed fixing this 5kHz whining?


Re: OT Xmas music

 

开云体育

Just wanted to say that I too browsed your channel last week and the Pastorale was a highlight for me as well. Nicely played, and some nice tones to go with it from your (is that a) Yamaha (?). Cheers.


On Dec 27, 2015, at 5:42 PM, David Rogoff david@... [yamahacs80] <yamahacs80@...> wrote:

Some great music Daniel. I really liked the Bach Pastorale.

David

> On Dec 23, 2015, at 2:35 PM, Daniel Forró?danforcz@...?[yamahacs80] <yamahacs80@...> wrote:
>?
> Hi everybody,
>?
> enjoy some Christmas music on my new YouTube channel if you?
> celebrate :-)
>?
> Daniel Forró - Forrotronics



Re: OT Xmas music

 

Some great music Daniel. I really liked the Bach Pastorale.

David

On Dec 23, 2015, at 2:35 PM, Daniel Forró danforcz@... [yamahacs80] <yamahacs80@...> wrote:

Hi everybody,

enjoy some Christmas music on my new YouTube channel if you
celebrate :-)

Daniel Forró - Forrotronics


Re: Complete VCF Alignment

 

Hello,
I recently decided to calibrate the filters of the master boards.
Since the values on page 11 of the service manual are wrong, I made a few trials and finally chose the settings visible .?
What values are you using when you do a complete VCF alignment?
Perhaps one of you owns a copy of the service manual where the right values were added by a technician in the past?
Thanks for your answers and merry Christmas to all!


Re: OT Xmas music

Daniel Forró
 

Hi everybody,

enjoy some Christmas music on my new YouTube channel if you celebrate :-)

Daniel Forró - Forrotronics


WTB CS80 legs

 

Hi,

WTB the original stand/legs for my CS80. I'm located in Italy.

Thanks



Re: Yamaha CS80 FOR SALE

 

I'm asking 18k. I would be willing to do a synth/ cash deal. I am also willing to drive halfway across the US to meet. I'm looking for a DSI Prophet 08. So if anyone has one they would like to throw in, I can work with it. I'm open to offers. Check out the Asheville NC craigslist for photos and more details.


Re: Yamaha CS80 FOR SALE

Gugy Huss
 

How much you asking?


On Wednesday, 4 November 2015, charleshowes23@... [yamahacs80] <yamahacs80@...> wrote:
?

Sorry about that. I am in the US. Western North Carolina.


Re: Yamaha CS80 FOR SALE

 

Sorry about that. I am in the US. Western North Carolina.


Re: Yamaha CS80 FOR SALE

 

开云体育

Hello

Am 04.11.2015 um 13:05 schrieb charleshowes23@... [yamahacs80]:
?

?and will drive halfway across the country to meet.

The most interesting part is missing: which country? Micronesian Island or Russia? It might make a different distance... ;-)

Florian


Yamaha CS80 FOR SALE

 

Well, I just got the CS80 and now I have to sell it due to lawyer fees. I figured I would post it here first. I'm having my engineer friend go through it to tune it up and adjust everything. I'm going to have him track down the volume issue and repair it before it leaves. I feel that the volume issue is only a minor problem. If anyone here would like to contact me use my gmail address charleshowes23

I prefer not to ship it, and will drive halfway across the country to meet. We can work out the details. I am also not going to put it on eBay.


Volume issue

 

Hello,
I'm having an issue with my CS80. The harpsichord presets are both very low in volume. On every 8th key press the note is louder. Same with a few other presets. Do I have a bunch of bad VCA chips?


Re: Hi / group activity

 

hello .. i had to delete my previous messages as you can understand .thks


Re: Hi / group activity

 

开云体育

Hi , I am pretty sure that was my next move after my backwards fail.... swapping from 2 to one, and it did not work in mboard 1 but did when returned to 2... I may have taken out some other component because traces look ok...

---- On Sat, 31 Oct 2015 23:21:02 -0500 Tim Conniff tconno@... [yamahacs80] wrote ----

?

that's good... then I 'd first do a swap from another voice of your synth, since you already have confirmation of those that still work.
Then, you'll know if buying another chip will for sure fix it.



On Saturday, October 31, 2015 2:10 PM, "laurie laurie@... [yamahacs80]" <yamahacs80@...> wrote:


?
would your vco chip be the more stable version or the original?? I had to add a diode for the newer IG00153 vco chips when I upgraded? all 16 m boards... can the older be dropped in (I have 2 spare cards) or do I have to remove the extra components?


---- On Fri, 30 Oct 2015 18:19:59 -0500 synthparts@... [yamahacs80] <yamahacs80@...> wrote ----
?
My guess would be you killed the IG00153 VCO chip. Try swapping it to another voice to confirm. I have the chip in stock if you need another one.?

Doug?
synthparts.com







Re: Hi / group activity

 

开云体育

salut j’ai re?u ce mail ;)

Le 2 nov. 2015 à 10:16, Selim Belhassine reboot@... [yamahacs80] <yamahacs80@...> a écrit :



ahaha?

i didn't know you're from Munich ...

each day i take a coffe and see the postman at the bar near my place , he's a kind of friend .

i recently fixed his playstation .

Selim



> To:?yamahacs80@...
> From:?yamahacs80@...
> Date: Mon, 2 Nov 2015 09:52:26 +0100
> Subject: Re: [yamahacs80] Hi / group activity
>?
> > by the way , it's better to declare less than 50usd and usps .
>?
> This might be problematic. I recently picked up a parcel at the customs?
> with IG00151s from Doug. The officer asked me to open the parcel and?
> wanted to see the content. He took a look at the chips, and his only?
> question (with a smile) was: "For a monophonic or a polyphonic CS?" He?
> knew the real prices without having a look at the bill....
>?
> Ok, that is custom Munich, not 20. Arrondissement. ;-)
>?
> Florian
>?
>?
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Re: Hi / group activity

 

by the way , it's better to declare less than 50usd and usps .
This might be problematic. I recently picked up a parcel at the customs with IG00151s from Doug. The officer asked me to open the parcel and wanted to see the content. He took a look at the chips, and his only question (with a smile) was: "For a monophonic or a polyphonic CS?" He knew the real prices without having a look at the bill....

Ok, that is custom Munich, not 20. Arrondissement. ;-)

Florian