Furuno 1730 Operator's Manual page 23

Fig.6-5 Optional Antenna Bracket
6-5
Wiring and Final Preparation of Scanner Unit
5. Run the interconneetion cable from the display unit to the scanner unit. A hole of at
least 20mm (3/4") dia. must be drilled through the deck or bulkheacl for cable entry.
After the cable is passed through the hole, a sealing compound should be applied to
this hole for waterproofing.
In order to minimize the chance of picking up electricai interference, avoid where
possible routing the interconnection cable near other onboard electricai eqiiipment.
Also avoid running the cable in parallel with power cables.
6. Remove the cable damping plate by loosening four M4 screws and two gaskets at the
radome base. See Fig.6-6.
7. Pass the cabte through the hole at the bottom of the radome base. Three plugs are
provided on the end of the interconnection cable for connection inside the scanner
unit.
Fig.6-6 Cable Connection and Grounding
8. Secure the cable with the cable damping plate and gaskets. Ground the shield and
vinyl cables by using one of the fixing screws for the cable damping plate and for the
IF amp. chassis. See Fig.6-6.
9. Mate the two plugs (9 and 4 ways) to the MD board. Remove the lid of the IF board
and mate the plug (14 ways), referring to Fig.6-6. Take care not to pinch the wire
when putting the lid back.
10. Put the radome on the radome base assembly, taking note of that the narrower
recessed part should face in the direction of the bow. Fig.6-7.
6-6