Yes I have your schematic and I had looked to see if I
could see the wire
but I had failed to spot it. Thanks for pointing it out. My worry was simply
that I had not noted where it connected, but it seems it wasn't connected in
the first place.
To prevent it shorting, stick it onto the pin labelled 'S'. If the pins
aren't labelled, do a contiuity test between the socket end of the wire
and each of the pins, it should be a dead short to one of them and an
open circuit to the other. Stick it on the one it seems to be shorted to.
-tony