"Phil Allison" wrote in message ...

Clearly there is a problem with the replacement jack socket that
seems to provide a short with a mono jack plug inserted in it.

** Yep -- it's a stereo jack with the ring contact wired to the
tip contact via the PCB.

Now, why would any manufacturer in its right mind wire a stereo jack -- input
or output -- in such a way that inserting a mono plug would short out the
signal? Oh, wait -- it's Behringer.