Grimbert

Yeah, it helps a bit on my 6581 too :) But it isn't noticeable when mixed together with other sounds, so it doesn't matter.

Do you mean shorting J4 (Audio in) ?

The low sound isn't much hearable when recording it luckily. Gonna be a long night fiddling with my new toy :) Thank you very much for the help!

Yes! it works, i had the short red cable at bottom connected to the wrong pin. It works great, i only hear the tone going really silent when i let go off a key.

c64 psu, but i get 12v on pin 28 and 14 with or without the SID inserted, so the psu most work? ???

i get 0.01V on my 6581

I tested my SID in the c64 i cannibalized it from using poke commands, and it works in the c64.

All give correct voltages (5.04V). So that means they work, right?

Is there any way to test them? or do i have to buy a new pair?

i tried it, i heard a low buzzy tone. then i disconnected the pins and tried again and then i didn't hear the tone anymore. Also, the hum is gone with the SID out of the socket.

I have a problem that i don't get any sound out of my sid, i only get a slight hum (ground?) As i am a complete electronics noob i have no idea where to look for the problem. All the voltages have been checked and they are correct, i have used a c64 psu. MIOS and the testtone have been uploaded succesfully. here is a picture of the pcb (large pic) http://www.elexorien.com/bla/pcb.jpg