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SynthOffenders - Tim Coniff - BUYER BEWARE

 

Unfortunate to do this here but I feel the need to put out a public warning against this guy.

He charged me around $300 for one of his unison boards and has come up with nothing but a bunch of excuses.? Synthoffenders is the name he's now operating under and thumbing his nose and the trail of honest buyers that have fallen for his scams.

Understand that his is not some seller whom forgot to send an item but a guy whom shared a load of BS about hard times, proceeded to send me a pic of a shipping box with my details on it, and then not send the package!
Re: Photo resistor P588 G50 201B signed PH1 and PH2, where to find orig part/replacement?

 

Does anyone know if the photo resistors that are in the E-30, E-50, or E-70 etc. might work in a CS-series synth?

Any other parts from those that fit the CS? The switch bank on the E-70 looks similar to what is on the CS-80 for example.

best - DT
Re: Photo resistor P588 G50 201B signed PH1 and PH2, where to find orig part/replacement?

 

Hi Scott,

Many thanks for the reply. Hmmm, sounds like I have yet another endless quest on my hand here, these CS-80s are certainly no walk in the park to fix and maintain. Will check with Kent Spong if he knows anything about the missing part, scour this forum for info and keep an eye on PRAs on eBay.

Thanks again!

Mathias
Re: Photo resistor P588 G50 201B signed PH1 and PH2, where to find orig part/replacement?

 

I spoke with a very helpful representative of the company that originally manufactured them. They had the part in their?database but could not help with the specifications as the product was just too old.

I recently had a CS-80 here in the shop with bad components in both L&R in the expression pedal position. In?the end, I purchased old CS-60 PRA cards and robbed the parts off those. :(

Scott


On Sat, Jun 12, 2021 at 10:44 AM Mathias Tjonn <mathiastjoenn@...> wrote:

Greetings,


Hope all is well with everyone. Regarding a previous post on different volume outputs on the L+R of my CS-80, a competent tech locally helped me diagnose a faulty photo resistor on the PRA as the likely culprit (we swapped two and the problem moved from one channel to the other).

It's the photo resistor P588 G50 201B marked as PH1, PH2 in the schematic, does anyone know where I can find an original part or a modern replacement?


best,

Mathias
Photo resistor P588 G50 201B signed PH1 and PH2, where to find orig part/replacement?

 

Greetings,


Hope all is well with everyone. Regarding a previous post on different volume outputs on the L+R of my CS-80, a competent tech locally helped me diagnose a faulty photo resistor on the PRA as the likely culprit (we swapped two and the problem moved from one channel to the other).

It's the photo resistor P588 G50 201B marked as PH1, PH2 in the schematic, does anyone know where I can find an original part or a modern replacement?


best,

Mathias
Re: Yamaha YC-45D organ expression pedal usable with a CS-80?

 

Greetings guys,

?

Thanks for the info on the FC7 and the heads up on the FC4. I'm considering buying one of Syntaur's CVP-100 pedal, as they at least list it as functioning with a CS-80. Will shoot them an email to double check.


Best,

Mathias
Re: Yamaha YC-45D organ expression pedal usable with a CS-80?

 

Thanks for the info Scott. Could you possibly share that mod?

DId the original pedals have specific model numbers?

best,

DT
Re: Yamaha YC-45D organ expression pedal usable with a CS-80?

 

Yes, the FC7 works ok. The bad part is there's a lot of change from full-off pedal to half-pedal, and then not much change from half-pedal to full pedal.It's? not the nice, even throw you get with?a light-powered pedal and shutter assembly designed for it.??It's not so bad that you can't get used to it, but it's not an optimal?choice.

And I might mention, never plug an FC4 into the expression pedal jack, as it shorts the -15 VDC power rail directly to ground. There's a couple of different actions you can take with a mod on the PRA board to keep things safe if it's in a situation where someone might do that (i.e., roadie, studio guy, etc.).


On Fri, Apr 30, 2021 at 9:49 AM scituate_mass <sneakyflute@...> wrote:
Hi,

Doesn’t the FC7 / CB 83742 volume pedal work with the Yamaha CS-50/60/80? Please correct me if I am wrong (now I’m curious). I think those are not so difficult to obtain.

And FC4 for sustain?

best,

DT
Re: Yamaha YC-45D organ expression pedal usable with a CS-80?

 

Hi,

Doesn’t the FC7 / CB 83742 volume pedal work with the Yamaha CS-50/60/80? Please correct me if I am wrong (now I’m curious). I think those are not so difficult to obtain.

And FC4 for sustain?

best,

DT
Re: Yamaha YC-45D organ expression pedal usable with a CS-80?

 

Now I'm relieved, at least?a little bit.
?
You might want to try and have a go at the pedal of the SY-1 -- it works as a swell pedal with the CS50 so it should work with a CS80 as well.
?
Stephen
?
?
Gesendet:?Donnerstag, 29. April 2021 um 18:08 Uhr
Von:?"Mathias Tjonn" <mathiastjoenn@...>
An:[email protected]
Betreff:?Re: [yamahaCS80fans] Yamaha YC-45D organ expression pedal usable with a CS-80?
...and thanks Stephen, I promise no YC organ will loose it's pedal! It's not mine to mess with in any case, just thought if it worked with a CS-80, I could have a tech reverse engineer it of sorts and make a replica for my synth. Sounds like it does indeed work with the 80, so with Florian's schematics and whatever else I can find here in the forum, I'll proceed with looking into having one built.

Thanks again! Mathias

Re: Yamaha YC-45D organ expression pedal usable with a CS-80?

 

...and thanks Stephen, I promise no YC organ will loose it's pedal! It's not mine to mess with in any case, just thought if it worked with a CS-80, I could have a tech reverse engineer it of sorts and make a replica for my synth. Sounds like it does indeed work with the 80, so with Florian's schematics and whatever else I can find here in the forum, I'll proceed with looking into having one built.

Thanks again! Mathias
Re: Yamaha YC-45D organ expression pedal usable with a CS-80?

 

Thanks Florian, I'll see if I can have a tech build or mod a pedal for me.

?

Best, Mathias
Re: Yamaha YC-45D organ expression pedal usable with a CS-80?

 

Since the YC's swell pedal is hardwired to the unit, it can only be used with a CS synth when ripping it from an organ first. Which would be a bloody shame.
?
A while ago, I posted a similar question here in the forum as to whether the SY-1's swell pedal could be used with a CS50 (to which no one felt inclined to respond). I found it out the hard way -- yes, it can be used. The 50 puts out something around 15 volts at the Control Pedal jack.
?
Stephen
?
?
Gesendet:?Montag, 26. April 2021 um 22:12 Uhr
Von:?"Florian Anwander" <fanwander@...>
An:[email protected]
Betreff:?Re: [yamahaCS80fans] Yamaha YC-45D organ expression pedal usable with a CS-80?
Hi

This is the Circuit-diagram from the YC45 (I hope the embedded image is accepted by groups.io)



Florian

Am 26.04.21 um 20:25 schrieb Mathias Tjonn:

Greetings,


I hope this message finds everyone in the forum well. A friend of mine has the YC-45D organ, and I noticed that the expression pedal is very similar to the one that originally came with the CS-80. I've taken a look at the YC-45D manual, but there is very little information about the pedal itself. Does anyone here have any experience with this organ+pedal, and know if it works for the CS-80?

Sincerely yours,

Mathias
?

Re: Yamaha YC-45D organ expression pedal usable with a CS-80?

 

开云体育

Hi

This is the Circuit-diagram from the YC45 (I hope the embedded image is accepted by groups.io)



Florian

Am 26.04.21 um 20:25 schrieb Mathias Tjonn:

Greetings,


I hope this message finds everyone in the forum well. A friend of mine has the YC-45D organ, and I noticed that the expression pedal is very similar to the one that originally came with the CS-80. I've taken a look at the YC-45D manual, but there is very little information about the pedal itself. Does anyone here have any experience with this organ+pedal, and know if it works for the CS-80?

Sincerely yours,

Mathias

Re: Yamaha YC-45D organ expression pedal usable with a CS-80?

 

开云体育

Hi

This is the Circuit-diagram from the YC45 (I hope the embedded image is accepted by groups.io)



Florian

Am 26.04.21 um 20:25 schrieb Mathias Tjonn:

Greetings,


I hope this message finds everyone in the forum well. A friend of mine has the YC-45D organ, and I noticed that the expression pedal is very similar to the one that originally came with the CS-80. I've taken a look at the YC-45D manual, but there is very little information about the pedal itself. Does anyone here have any experience with this organ+pedal, and know if it works for the CS-80?

Sincerely yours,

Mathias

Yamaha YC-45D organ expression pedal usable with a CS-80?

 

Greetings,


I hope this message finds everyone in the forum well. A friend of mine has the YC-45D organ, and I noticed that the expression pedal is very similar to the one that originally came with the CS-80. I've taken a look at the YC-45D manual, but there is very little information about the pedal itself. Does anyone here have any experience with this organ+pedal, and know if it works for the CS-80?

Sincerely yours,

Mathias
Re: Identifying correct resistor value for CS80 power transistor

 

Oh...In my turn I missed this message from you.So yes indeed, using alligator to tie the lead and sense lines together is a quick way to go, but your option of getting a load resistor bank is surely a safest route as alligator clips may always slip out.
Just to clarify, this is the exact method I always used (described at 4:15 in this video):?https://youtu.be/Up-KQHc4LNQ
So I would conclude both ways will prevent the transistors from driving out, one way being the easy and quick way (alligator clips), while the other being the most secure method for longest tests (load bank).
Re: Identifying correct resistor value for CS80 power transistor

 

Yes you're correct, I actually meant transistors.So will include all that in my Mouser order, thanks a lot!
Re: Identifying correct resistor value for CS80 power transistor

 

I usually get the cut strips, but any will do.

I believe?you mean the transistors, not the resistors in your last sentence? If so, for power transistors in the CS-80 I use:

2SD556 2N3716
2SA746 2N3792
2SD234 TIP41AG
2SA490 TIP42AG



On Sat, Mar 13, 2021 at 2:57 PM <nightmusic01@...> wrote:

Great idea! So right, with your p/n references i found the molex plug on Mouser, but the socket terminals gives 3 different results (regular, ‘cut strip’, and also ‘mouser reel’).I dont really get the differences between them all but i presume i should get the regular one, right?
Also, considering extreme case when the output circle resistors would have failed in the end, is there any substitute for it i could order at same time?

thanks
Re: Identifying correct resistor value for CS80 power transistor

 

Great idea! So right, with your p/n references i found the molex plug on Mouser, but the socket terminals gives 3 different results (regular, ‘cut strip’, and also ‘mouser reel’).I dont really get the differences between them all but i presume i should get the regular one, right?
Also, considering extreme case when the output circle resistors would have failed in the end, is there any substitute for it i could order at same time?

thanks
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