Peavey XR 1600D mixer
 

I trying to do some repairs on a Peavey mixer however I cant get to the parts I need to because the female XLR plugs hold on the cover. I have taken all the screws out, and it looks like the XLR plugs attached directly to a circuit board. I tried twisting the XLR plugs top thinking it might unscrew like the 1/4 phono plugs do. But that did not work, and I did not want to twist to much as I might damage the circuit board below.

Let me know if you have any ideas. Thanks