Vintage Synth Repair

Congratulations! It's very nice instrument.


Try this:


http://elektrotanya.com/yamaha_v50_sm.zip/download.html


I attached another SM but don't know if attachments are allowed in  
this group. If it doesn't come through the pipes, let me know and I  
will send it to your mail address.


Switches can be probably cleaned a little bit with some deoxit liquid,  
but better to change them. Pressing buttons too much can break their  
connection to the frame...
When changing, change all of them as soon some other can start to have  
problem.


I don't know substitution. Just open it, measure the size and find the  
same.


Good luck!


Daniel Forro