Lowrance electronic X100C, X105C DF manual Power/lights on and off, Main Menu

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3.MENU – Press this key to show the menus and submenus, which allow you to select a command or adjust a feature.

4.ARROW KEYS – These keys are used to navigate through the menus, make menu selections, move the chart cursor and enter data.

5.ENT (Enter) – This key allows you to save data, accept values or execute menu commands.

6.EXIT – The Exit key lets you return to the previous screen, clear data or erase a menu.

7.ALARM –The Alarm key is a shortcut to access the various sonar alarms. Press this key once to open the Alarms menu.

8.ZOUT – (Zoom Out) – This key lets you zoom the screen out. This key returns you to a full sonar chart display, showing the entire water column from surface to bottom.

9.ZIN – (Zoom In) – This key lets you zoom the screen in. This key en- larges fish signals and bottom detail.

Power/lights on and off

To turn on the unit, press PWR. As the unit powers up, the Full Sonar Chart is displayed first.

To turn on the backlight, press PWR again. The unit has three backlight levels to select from. Repeatedly pressing PWR will cycle through the backlight settings and turn off the backlight.

Turn off the unit by pressing and holding the PWR key for 3 seconds.

Main Menu

The unit has a Main Menu, which contains some function commands and some setup option commands. The instructions in this section will deal only with sonar functions, the basic commands that make the unit show sonar signals on your screen. This sonar unit will work fine right out of the box with the factory default settings. But, if you want to learn about the various sonar options, see Sec. 4, Sonar Options & Other Features.

You can access the Main Menu from any of the four Page screens by pressing MENUMENU. To clear the menu screen and return to the page display, press EXIT. (Remember, our text style for "MENUMENU" means "press the Menu key twice." See a full explanation of our instruction text formatting on pages 4, "How to use this manual…".

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Contents X100C X105C DF Lowrance Electronics Inc 12000 E. Skelly Dr Tulsa, OK USA Table of Contents Page Read Me First Page How Sonar Works How to use this manual typographical conventions Menu CommandsArrow Keys KeyboardTransducer Installation PreparationsSingle-frequency transom installations Dual-frequency transom installationsSingle-frequency trolling motor installations Shoot-through hull installationsHow low should you go? Deadrise less than Strakes PadGood location Poor location Location Poor angle Shoot-thru-hull vs. Transom Mounting Transom Transducer centerline Hull bottomAssembling the bracket DotAligning the transducer on the transom TransducerTransducer bracket RatchetRatchets Assembling the transducer Drilling mounting holesAttaching transducer to transom TransomBottom Hull Flat-bottom hull Deep-vee hull Trolling Motor Bracket Installation single-frequency only TMB-S bracket Internal tooth washer Bolt Nut Flat washerHulls With Floatation Materials Partial fish archesTransducer aimed Testing Determines Best Location Transducer location High speed Trolling speedTrue bottom Second bottom Manual range setting Shoot-thru-hull Installation Spread epoxy here Sand this surfaceOptional Temperature Sensor Optional Speed Sensor InstallationGood location Transom Bottom of hullPower Connections Powering a Nmea 2000 Buss Nmea 2000 Power cablePowering Your Unit Power Supply cable red and black wires Power connections for the units in this series Connecting to a Nmea 2000 Network Nmea 2000 Cable ConnectionsNmea 0183 Cable Connections To Nmea To sonar Network port Units Network SocketMounting the Unit Bracket, In-Dash or Portable Bracket Installation Front173.9 77.1 27.6 137.9 Millimeter 56.9 Inch Other Accessories In-Dash InstallationPortable Installation Face Cover Basic Sonar Operation KeyboardPower/lights on and off Main MenuMain Menu Pages Page Sonar Page, showing full sonar chart mode Basic Sonar Quick Reference Sonar Operations To adjust sensitivity Fish Symbols vs. Full Sonar Chart To Restore Factory SettingsOther Free Training Aids Page ASP Advanced Signal Processing To change the ASP levelAlarms Depth AlarmsZone Alarm Fish Alarm Chart Speed Calibrate SpeedColorLine Depth Cursor Thin or no ColorLine Wider ColorLineDepth Range Automatic Cursor line Depth boxTo switch to Manual Depth Range Depth Range ManualDepth Range Upper and Lower Limits To turn Auto Depth Range on againTo change the upper and lower limits Fish arches Area zoomedFish I.D. Fish Symbols & Depths FasTrackTo turn off upper and lower limits To turn the Fish I.D. feature on FishTrackTo turn on FishTrack Symbols with FishTrack depths Frequency Change Transducer Frequency X105C DF onlyTo change the frequency setting to 50 kHz To change the frequency setting to 200 kHzHyperScroll Noise RejectionTo turn off displayed data Ping Speed & HyperScroll To change displayed data font sizeTo change Ping Speed Reset Options Reset Water DistanceTo turn off HyperScroll Set Keel Offset Sensitivity & Auto Sensitivity Automatic SensitivityTo adjust sensitivity in auto mode To adjust sensitivity in manual modeTo turn Auto Sensitivity back on Sonar Color Mode Sonar Page & Sonar Chart Display OptionsTo change the chart mode color scheme Full Sonar ChartSplit Zoom Sonar Chart Digital Data/ChartCustomizing the Digital Data/Chart Screen FlashGraf Sonar Simulator FlasherStop Chart To adjust the Surface Clarity levelSurface Clarity Upper and Lower Limits Zoom & Zoom BarZoom Pan Page Unit wont turn on Unit freezes, locks up, or operates erraticallyNo fish arches when the Fish I.D. feature is off NoisePage Page Supplemental Material Index Page Page Page Lowrance Electronics Full ONE-YEAR Warranty How to Obtain Service… Not toll-freeAccessory Ordering Information for all countries Visit our web site