Installing The Wiring Harness - Garmin FishFinder 340C Owner's Manual

Installing the Wiring Harness

The Fishfinder comes with a wiring harness that connects the
Fishfinder to power and the transducer with one easy-to-remove
connection and provides interface capabilities for connecting
external devices. The color code in the diagram (see page 18)
indicates the appropriate harness connections. The replacement
fuse is a AGC/3AG - 3 Amp fuse. If it is necessary to extend the
power wires, use 22 AWG wire. DO NOT cut the transducer cable,
because this voids your warranty. If your boat has an electrical
system, you might be able to wire the Fishfinder directly to an
unused holder on your current fuse block. If you are using the
boat's fuse block, remove the in-line fuse holder supplied with the
Fishfinder. You can also wire the Fishfinder directly to the battery.
CAUTION: The Fishfinder input voltage is 33 volts DC. Do
not exceed this voltage, because this can damage the Fishfinder
and void the warranty.
Fishfinder 340C Owner's Manual
I F 340C >
NSTALLING THE ISHFINDER
To install the wiring harness:
1. Use a test light or voltmeter to determine the polarity of the
voltage source.
2. Connect the Red (+ or positive) wire to the positive voltage
terminal. (If you use the boat's fuse block, route the positive
connection through the fuse, as shown on the diagram.)
3. Connect the Black (- or ground) wire to the negative voltage
terminal.
4. Install or check the 3-Amp fuse (on the boat's fuse block or
in the in-line holder).
5. Align the notches on the cable plug and on the back of the
Fishfinder. Insert the cable into the connector, and turn the
lock ring counter-clockwise until it stops.
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NSTALLING THE IRING ARNESS
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