Regarding VIN Signals

Hi all friends
Hope to be fine
I have a question about VIN signals in schematic files
on the schematic two pair signals named VINN and VINP that connect from
AD
to connectors. for J668 and U602 in the schematic VINN_B_B is connected
to
108 of U602 and VINP_A_B is connected to 107, and on J668 connector 50
and
52 are connected to VINN__B_B and VINP_B_B however as I see on the board
50
and 52 of J668 are connected to 107 and 108 of U602.
can somebody clears this up for me?
thanks