Doepfer

I aquired a used A-110 that does not output any signal.  I have traced 
the board with a scope and found a point near the BC559 marking that 
outputs saw wave. I assume this is the output of the saw core. Since I 
am not finding signal anywhere else on the board I swapped out both 
TL064s. I have not swapped out the CA3046  I am curios what othe 
critical components I should look at to narrow down my search.  Any 
particular transistors or Electrolytic caps.  Also, what happened to 
the A-110 sevice manual that used to be on the doepfer site?

Thanks!

Matthew