OldSynths

Hi all:

I have a Sequential Circuits Pro-One, with the original box and manual. 
Unfortunately it does not put out any audio.
It triggers the gate and I get some sort of audio bleed (same frequency 
no matter what I do).
Any thoughts on how to go about repair of this unit?

2) I have a Korg Wavestation (original) in nice shape with all the 
manuals etc but there is one problem with it:
It plays fine except the octave directly below middle C doesnt work at 
all. Is this a octave divider problem, or what?
Anyone who knows this unit please advise- I can solder and swap parts 
but dont know what to look for at the moment.

Regards
Rory McDonald
OldSynths Moderator
rorymcd@...