I don’t understand!!!
My sidbox[8580] doesn’t make any sound but a constant beeeep. 
How can i verified ICs of my synth[sid, pic, opto etc.]?
HELP ME! Please. ???
hi,
verify the sid with a working C64;
verify the other ic’s with the troubleshooting guides given in the forum and on the core pages
with this little information we can’t help you; follow the guides; write down your results!
When you then still don’t understand we can probable help you more
chrs, mrcel