Hello everybody, i’ve got a problem with my OS, while the OSC 2 and 3 are perfectly in tune when centered, the OSC 1 is slightly out of tune (almost an halftone down)
Can anyone give me the instruction to tune up the first OSC? Is it a simple procedure or have to bring the synth to support? Somewhere i’ve raed that is a 10 min procedure, but can’t find instruction in the web…
Thank you…
Emanuele, Italy 
Mine is the same way. I think it will drift over the years; nothing to be concerned about so long as you have the range on the main tune knob to bring it to where you need it (either to perfect tuning or in line with a few difficult guitar players that insist they are the tuning source).
Ultimately, I think you need to open up the back panel and mess with some of the calibration pots inside… but there is 20+ of them and I think you need a scope and plenty of know how to do it correctly. Oberheim provides a basic how-to for the SEM but I’ve never seen anything on Voyager/OS. Lets see what others have to say about it maybe there is something.
If OSC1 is tracking (i.e. 1V/Octave) then the tuning procedure to get OSC1 along with 2 & 3 takes about 30 seconds! 
Send an email (or call) Moog . If you don’t mind cracking open your case it is a relatively painless procedure.
Well, I’ve sent an e-mail…let’s hope…thank you guys…
By the way, it’s very strange that in all web there’s no track of a pdf with clear instruction about tuning a voyager…If anyone can help me, please, let me know…the problem is that in these weeks I can’t send my OS to USA, imminent concerts…
