Don't know if it's true in your case, but in my experience, PLCC32 sockets often don't work if the chip is pressed to the bottom of the socket. Try inserting the chip until it is securing held by the pins, but not all the way at the bottom of the socket. IIRC, get the top of the chip flush with the top of the socket, but not pressed down to the bottom of the socket.
I have this issue with my PLCC32 - DIP adapters.
I have this issue with my PLCC32 - DIP adapters.
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