G'day, I have been working on my very neat Roland sh-2000. Overall condition is great, but after a couple years I have run into some issues. I have had to recently run through the tuning process outlined in the service manual, I don't have a oscilloscope so I did so with using a meter for frequency ...

Hi and welcome to the board. Can you please confirm that you are getting +15V and -15V on the power supply ? If the power supply is ok, it would be a good idea to wiggle the filter and VCA boards, and check if it produces any sound. You should clean the connectors both on the cards and the mainboar...