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Table of Contents
Section 1: Read Me First! ......................................................... 1
Specifications: LMS-522c iGPS and LMS-527cDF iGPS ............. 3
How to use this manual: typographical conventions ................ 10
Section 2: Installation............................................................. 13
Preparations ................................................................................ 13
Transducer Installation .............................................................. 13
Single-frequency transom installations ............................. 14
Dual-frequency transom installations ............................... 14
Single-frequency trolling motor installations ................... 14
Shoot-through hull installations ........................................ 14
Selecting a Transducer Location ............................................ 14
How low should you go? .......................................................... 15
Shoot-thru-hull vs. Transom Mounting ................................. 16
Transom Transducer Assembly And Mounting .................... 17
Trolling Motor Bracket Installation (single-frequency only) 23
Transducer Orientation and Fish Arches.............................. 23
Shoot-Thru-Hull Preparation ................................................. 24
Hulls With Flotation Materials .......................................... 24
Testing Determines Best Location......................................... 25
Shoot-thru-hull Installation ................................................... 27
Speed/Temperature Sensors ................................................. 28
Optional Speed Sensor Installation ....................................... 28
Power Connections ...................................................................... 30
Powering Your Display Unit ...................................................... 31
Power Diagram A ........................................................................ 32
Power Diagram B ........................................................................ 33
Powering a NMEA 2000 Network Bus ...................................... 33
Connecting to a NMEA 2000 Network .................................. 34
NMEA 0183 Wiring (Data cable) ........................................... 34
Mounting the Unit: Bracket or Portable ................................... 35
MMC or SD Card Memory Card Installation............................ 39
Other Accessories ........................................................................ 40
Cleaning Towel ........................................................................ 40
Face Cover ................................................................................... 41
Section 3: Basic Sonar Operation ........................................ 43
Keyboard...................................................................................... 43
Power/lights on and off ............................................................... 44
Main Menu................................................................................... 44
Pages ............................................................................................ 46
Satellite Status Page............................................................... 46
Navigation Page ...................................................................... 47
Map Page ................................................................................. 47