Garmin Fishfinder 100 Owner's Manual

Also see for Fishfinder 100: Specifications Owner's manual

Garmin Fishfinder 100 Owner's Manual Manual pdf 13 page image

5InstallationInstalling the Wiring HarnessWiring Harness InstallationThe Fishfinder 100 comes with a wiring harness that connects the unitto power and the transducer with one easy-to-remove connection. Makesure the wiring harness will reach the unit before beginning installation.If it is necessary to extend the power/data wires, use a wire of compa-rable size and keep your extension as short as possible.If the transducer lead is too short, DO NOT cut the transducer lead tolengthen the cable. This will void the warranty. Transducer extensioncables are available in 10’ or 20’ lengths from your GARMIN dealer.Wiring to a Fuse BlockIf your boat has an electrical system, it may be possible to wire the unitdirectly to an unused holder on your current fuse block. If you are usingthe boat’s fuse block, remove the in-line fuse holder supplied with the unit.Installing the Wiring Harness:1. Determine the polarity of the fuse holder using a Test Light or Volt Meter.2. Install the Red (+) wire on the Positive Fuse Holder Terminal.3. Install the Black (-) wire on the Negative Fuse Holder Terminal.4. Install a 2 amp fuse in the Fuse Holder.Continued on page 610-18 Volt Boat SupplyDuring a typical installation, only the Red and Black wires are used. TheBlue wire supplies NMEA data, and doesn’t have to be connected fornormal operation of the unit.2A-+Boat Ground Black WireRed WireInstall 2-Amp Fuse