The Non-Hunt for Synth Parts
Yeah, I grabbed one of Yamaha’s forgotten vectors a while back for a good price. The SY35 is a pretty sweet-sounding instrument that’s fun to program. I look forward to digging deep into its digital soul.
The unit I got had a couple of dead keys. I also noticed a couple of keys that were hyper-sensitive to velocity, i.e. they would always sound as though you struck them twice as hard as you actually did. So I took the keyboard apart and tried to clean the key contacts under the offending keys, which turned out to be a colossal waste of a lot of time. After a bit of research, I found that this keyboard mechanism is used on a lot of Yamaha keyboards including the DX11, V50, SY55, SY22, CS6X, some PSR (consumer) keyboards, and others. With age, these keyboards will all develop these issues, but there is an easy fix. There is a rubber strip with carbon contacts that runs the length of the keyboard which must be replaced when the carbon starts to deteriorate. The part number has been superseded a few times, but the new part is compatible — Yamaha’s part number is VF83410R. Syntaur carries a rubber contact strip as well. I’m not sure if Syntaur’s offering is a genuine Yamaha part, which may or may not be a bad thing.
The other issue was a dead battery. On the SY35 this is particularly frustrating, because of the way the preset sounds are mapped. The 64 ROM patches are comprised almost entirely of dull acoustic simulations, that really don’t show what the synth can do. The synth ships with the more interesting patches stored in RAM, which is perfect, because you have to overwrite them when you store your own sounds. Seriously Yamaha, I’m sure there’s a statute of limitations on how long you can be called out for this stuff, but I don’t care. The keyboard is 20 years old and the ROM presets are abysmal.
So … here’s the issue with the battery: it’s one of those CR2032 coin cells with PC pins tack welded on, but its pin spacing is unusually short. People all over the internet seem to be asking about this battery, and everyone who has an answer seems to be suggesting buying a coin cell holder and shoehorning it in (actually there is room, but again, the pin spacing is a nuisance). In this case however, the most elegant solution is also the easiest: I asked Yamaha, and guess what? Yamaha part # VE33840R, drop-in replacement battery, in stock. I won’t have to worry about it again for another 10-15 years.
But wait, the good news doesn’t stop there. Let’s talk about prices. I’m fortunate that Yamaha Canada is within easy driving distance for me (in Scarborough, Ontario). But even if it wasn’t so close, they will next-day ship any order for $7.99. The battery cost $4.85 CAD, and the rubber contact strip $34.74. But I’ve been saving the final bit of good news until the end: They gave me a scanned pdf of the SY35 Service Manual! I’ve been unable to find a downloadable copy on the internet. But don’t worry, I won’t hold out on you. I plan to make the full service manual available for download shortly – it’s actually 4 separate files, and I’m trying to figure out the best way to distribute them together.
Details about the battery:
Yamaha VE33840R – “BATTERY SONY/CR2032-HC2H GCX1100″