Recycler? Stop: this section does not apply (the board is not removable on Recyclers).
The interface (I/F) board slides into a connector at the back of the assembly. It’s possible for the connector to work loose during environmental temperature or humidity changes, not to mention routine use & handling, and vibrations while shipping. Many times a bad connection can be tracked down here.
The acceptor interface (I/F) board slides into an edge connector:
The edge connector is hardwired to the EBDS connector (described in Section B).
The acceptor head slides onto the I/F board contacts: