Garmin 400C Fish Finder User Manual


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0 Fishnder 400C Owner’s Manual
InstallIng the FIshFInder 400c
Step 4: Install the Wiring Harness
The Fishnder 400C comes with a wiring harness that connects
the shnder 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 11) 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
shnder 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 shnder. You can also wire the shnder directly
to the battery.
CAUTION: The Fishnder 400C maximum input voltage is 35
Volts DC. Do not exceed this voltage, because this can damage
the Fishnder 400C and void the warranty.
NOTE: During a typical installation, use only the Red and Black
wires. The other wires do not have to be connected for normal
operation of the Fishnder 400C unit. For information on connecting
to a NMEA or CANet compatible device, see page 12.
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
shnder.Insertthecableintotheconnector,andturnthe
lockringcounter-clockwiseuntilitstops.
—
+
To 0- Volt boat supply
2A
-
+
Boat ground
-Amp
fuse
To Fishnder 400C
Fuse block
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