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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

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.

...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

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

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

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:

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

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

Yes you're correct, I actually meant transistors.So will include all that in my Mouser order, thanks a lot!

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

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

Ah. I re-read your message. What I was talking about was just ruining it without the sense line connected to the power line as some people try to do, that's when you get the circuit driving the

Since you're ordering parts anyway, just get a new Molex plug and some terminals and make up a little dedicated resistor load bank you can just plug in to the power supply. The plug is Molex p/n

Scott, The damaged resistor is on the +15 volt line, but the foot switch issue you mention makes me think of another (ghost) short I had some while ago, which happened only when the Yamaha foot

That makes sense indeed. So I won't take any more risks in the future and will do your way from now on. And since these temporary resistors would tie each +15/+15S and -15/-15S lines together, the

It drives the power transistor output circuit to its voltage limit, somewhere around 27 volts if I recall correctly..I'm not sure exactly what damage it can cause, but it's certainly not something you

"As another?point in the matter, do not power-up?the power supply unless it has a load on it. It needs to have the circuit completed in order to work properly" Waou this info is very useful Scott!

If the damaged ceramic resistor is on the -15 volt side, it's likely someone plugged a footswitch into the Foot Controller port on the back of the synth. Doing so will short the -15 volt side to

*" should I conclude the outputs transistors themselves are 100% kept safe and operating?"* I would expect so, they're pretty bulletproof and can handle a hefty overload for a short period. As