Furuno FS-5070 Installation Manual page 54

2. Remove the waterproofing material from the grommet on the antenna coupler.
3. Pass the coaxial cable through the grommet and connect it to TB1 on the Antenna BK
Relay board.
4. Connect the other end of the cable to the R. ANT on the transceiver unit, referring to the
figure on page 2-1.
5. Disconnect the connector from J1 on the COUPLER board, and connect it to J2 on the
Antenna BK Relay board.
6. Connect the harnesses (2P and 3P, supplied) between Antenna BK Relay board and the
COUPLER board.
COUPLER Board
J2
Add connection
cables here.
J1
Note: Be sure to pass the wire from J2 of the Antenna BK Relay Board through a cable
fastener on the COUPLER board.
Cable fastener
4-2
Harness
(PH, 3P)
J3
Harness
(VH, 2P)
J1
Disconnect wiring connected to J1 of the COUPLER Board,
then connect it to J2 of the Antenna BK Relay Board.
Antenna coupler, inner view
TB1
ANTENNA BK
RELAY Board
J2
J2
TB1
Antenna BK Relay board
Coaxial cable
(to Transceiver unit)
Change wiring.
ANT port