Don't buy equipment that has a Pin 1 problem - If you already own it, you may be able to perform some simple wiring changes to cure it.
Yes, both pin2 and pin3 have a resistor load connected to audio ground. This could be a 10M resistor to bleed off capacitor leakage, or it could be 600r (two 300r) to mimic a 600ohm balanced load for the balanced input, or anywhere in between........When S1 is to left R1 connects to audio ground. This is the same as R2 from pin3 to audio ground. This is the balanced mode.
I don't understand this sentence.that in reale picturethe switch is connect in direction of xlr soket ?