Furuno FR-2125V - Manual (Page 49)

4-8
4.2 ARP Board ARP-26
The ARP Board ARP-26, which provides ARPA functions, is an optional circuit
board which is accommodated in the display unit. Note that the ARP-26 is not
available with the statute mile-type radar.
Necessary Parts: ARP-26-2E (008-485-500)
e m a N e p y T y t Q . o N e d o C
d r a o B P R A B 2 0 0 9 P 8 1 1 0 5 6 - 3 7 4 - 8 0 0
Installation of the ARP board
1. Turn off the power. Remove the front panel from the display pedestal by unfas-
tening four screws.
2. Set the ARP Board in the center slot of the PCB card case.
Display pedestal
Top: RP Board (Option)
Middle: ARP Board (Option)
Bottom: SPU Board
Figure 4-5 Display pedestal, inside view
3. Adjust the ARP Board referring to the procedure below.
ARP board adjustment
1. Turn the GAIN, A/C SEA and A/C RAIN controls fully counterclockwise (OFF).
Transmit on the 12 nm range.
2. Connect a digital multimeter between TP7(+) and TP6(-) on the ARP Board.