I’m just done with my PIC Core and SID R3A, and I have a question to you guys. Basically everything went well, Mios works like a charm. I have the sid testtone app uploaded, no problem, I have the signal on the output. The question is that the Sid chip goes hot… After a few secs I hardly could hold my finger on it… In the meantime the sound was fine. It’s a pulled 8580R5 (5187) from my own C64, was working perfectly. Is it normal? Should the Sid be fitted with heatsink? What is the average normal temperature?
The 8580s, when correctly provided with 9V, can live without heatsink (and probably already did so for decades! )
You can fit one, nevertheless (i´ve got a few pictures, if you are interested). With heatsink, mine get warm, not hot, i´d say around 40-50° celsius or so.
Thanks for the answers! Here is the result of the past few hours: I’ve probably fried the sid, I don’t know how. With the connection test I’ve measured only around 1,7-2,2V on the D6-D7 pins of the sid when inserted, 5V when pulled out. Then I checked the resistance between this two pins (out from the socket) and there was about 320 ohms resistance. Strange thing, the testtone was worked… I had another (the last…) 8580, which has the proper voltages of all pins… Now the other one is back in the C64, I’ll test it tomorrow. I have no idea what was wrong…
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