Garmin Fishfinder 100 BLUE Owner's Manual

Also see for Fishfinder 100 Blue: Specifications

5InstallationInstalling the Wiring HarnessWiring Harness InstallationThe Fishfinder 100 Blue comes with a wiring harness that connectsthe unit to power and the transducer with one easy-to-remove connection.Make sure the wiring harness will reach the unit before beginninginstallation.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 transducerlead is too short, DO NOT cut the transducer lead to lengthen the cable.This will void the warranty. Transducer extension cables 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 using theboat’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 62A-+During a typical installation, only the Red and Black wires are used. TheBlue wire supplies NMEA data, and doesn’t have to be connected for normaloperation of the unit. The Yellow wire is not used.Boat GroundBlack WireRed WireInstall 2-Amp FuseFishfinder 100 Blue10-18 Volt Boat Supply