Tritech SeaHub Operator's Manual page 58

SeaHub
6) Use a 10mm spanner to loosen the M6 flanged Earthing
nut holding the PCB onto the earthing stud of the box.
7) The PCB should now be free – slide the circuit board forwards out of the housing, and place the
housing to one side
8) Turn the PCB over to access its underneath side
9) Solder four small links of wire or 0603 size 0Ω links onto the unpopulated component footprints
labelled R75, R76, R77 and R78.
These are located directly beneath the "AIF-ArcNet connector header J23"
10) Reverse the above steps to reassemble the SeaHub unit.
11) Take particular care when inserting the PCB back into the
housing, that it is fully slid back prior to tightening the M6
flanged earthing nut.
The shrouding around the 4mm DC power sockets fit into
their holes in the back of the box. This is shown in the
picture opposite.
When reassembling the unit. it is suggested that the ribbon-cable header to Port-A be
disconnected from the PCB and the unit labelled appropriately if this procedure is
undertaken, to prevent possible damage from occurring if two serial devices are
CAUTION!
simultaneously connected.
Issue 1 TIL – Eng – Spec – 080
Operator Manual
Page 58 of 70