no probs mate.
as per usual repairs are always a little more challenging when some one else with a little knowledge (with enough knowledge to be dangerous) has attempted to repair a pin.
And i liked the excuse the fellow who attempted to fix it gave you, "I repaired it but if it doesn't work when you plug it in then the opto's have gone out of alignment , its a common problem with this pin, when you transport it the optos always seem to go out of alignment"
I found that explanation strange because of the lack of optos in that part of the pin.
So in transportation 2 pins on the socket jumped out of their positions and managed to swap them selves around then jump back into the socket. then the socket managed to jump off the first set of headers and jump onto the second set of headers. Then you have the solenoid controlled arms that dont go back far enough for thr balls to land on them. And last there is the problem of one of the gates sticking in the open position.
Yeah right the optos have moved