Vintage Synth Repair

--- In vintagesynthrepair@yahoogroups.com, "thainmlh" <mike.hunter@...> wrote:
>
> Hi, new to the list. I have two questions pertaining to an ARP Axxe
> 
> 1) It seems to me that the CV Memory needs alignment or repair. If a
> note is depressed and released, the pitch slowly climbs. If the key is
> depressed and held, the pitch remains constant.
> 
You can try cleaning the circuit board top and bottom around the CV memory circuit, from 
memory it is a very high impedence circuit with a single FET and a dual FET and discharge 
capacitor, so if ther is contamination on the board, particularly in humid weather, there could 
be leakage. As this is a sample and hold circuit it needs to be leak free. 

Otherwise you would be looking at  (depending on which version Axxe you have) C13, Q5 or 
Q6.