Furuno 1751 Operator's Manual page 3

Piease Check Input Voltage
This radar can operate by input voltage of 12VDC or 24/32VDC. If not specified when
ordering, the unit comes ready for 12VDC connection. For 24/32VDC ship's mains, replace
a fuse in the display unit. The amperage of the fuse (F1351) at the rear of the display unit
should be;
Ship's Mains
Fuse F1351
12VDC
lOA
24/32VDC
5A
Note: Spare fuses are
supplied as spare
parts.
Display Unit, Rear View