About Rev. C

[geloalex]

Hello, first thanks to share the circuit.
I have built the circuit (rev. C) I send you two screenshots so you can see a detail .Please say me if the pcb is OK or has an issue
https://i.postimg.cc/sfPT3c30/capture1.jpg
https://i.postimg.cc/C50JjZsN/capture2.jpg
Once assembled with two 6581 I have not installed R3 and I have put a cable in R2.
I want to use it in normal mode with only one SID and activate the other one for dualsid files. How do I turn SID 2 on and off?
You talk about EXT_IN SEL1 and EXT_IN SEL2 but this rev ony have EXT_IN SEL1.
In 3 pins i have selected 2-3 Dual SID.
Thanks