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Do you have anything else you could connect to the receiver to see if it is working correctly, like a servo? Barring that, you will need to check the pins on the receiver for ground, power and signal with a multimeter. I imagine you don't have another crystal pair to try?
The weird thing about the reciever crystal is that on the other side it does say CH88 75.950, but on the side I took the picture of, it says 75CH88 75.495 GWS