nsm Prestige es160 carriage

I recently bought a Prestige ES160, the manual I have unfortunately is
for an es II 160. They seem to be almost identical, but I'm not sure.
The question I have is, in the manual it shows a switch to indicate
when the carriage has reached the far left and right position, this
switch I guess switches the carriage from playing a sides to b sides
at the end of it's travel. My carriage does not have anything that
looks like what is picured in the manual. The manual says that the
switch will reverse the motor to move back to the right. If there is
a missing switch, I don't see anyplace where a switch would be wired
to. Does anyone have this same box that could take some pictured of
their carriage and send to me? I would really appreciate it.

Thanks,
mark