Lowrance electronic X135, X136DF, X125, X126DF manual Power/lights on and off, Menus, Main Menu

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

5.ENT (Enter) – This key allows you to 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 quick shortcut to the sonar alarms menu. It allows you to choose which alarms to use and when.

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. It enlarges fish signals, bottom detail and other sonar returns.

Power/lights on and off

To turn on the unit, press PWR.

To change the backlight, press PWR again. The X125 and X126DF have two backlight levels to select from. The X135 and X136DF have three backlight levels. Repeatedly pressing PWR will cycle through the back- light settings, turn off the backlight, then turn it back on again.

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

Menus

Your sonar unit will work fine right out of the box with the factory de- fault settings. You only need to learn a few basic functions to enhance your viewing. We'll discuss them briefly here, then talk about them and all the other commands in more detail in the next section, which begins on page 43.

Your unit has three primary menus that control its operation. They are the Main Menu, the Sonar Menu and the Pages Menu.

Main Menu

The Main Menu contains some basic function commands and some setup option commands. You access the Main Menu by pressing MENUMENU. You run a command by using the ↑ or ↓ to highlight the command and then pressing ENT. To clear the Main 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 instruc- tion text formatting on page 5, Instructions = Menu Sequences.)

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Contents X125, X126DF, X135, X136DF Lowrance Electronics Inc 12000 E. Skelly Dr Tulsa, OK USA Table of Contents Sec Sonar Troubleshooting Sec Supplemental Material Read Me First X136DF X126DFBack-up memory SonarHow Sonar Works How to use this manual typographical conventions Menu CommandsArrow Keys KeyboardInstructions = Menu Sequences Page Transducer Installation PreparationsRecommended Tools and supplies Selecting a Transducer LocationHow low should you go? Good location Poor location Location Poor angleTransom Transducer centerline Hull bottom Shoot-thru-hull vs. Transom Mounting Assembling the bracketDot Aligning the transducer on the transom RatchetRatchets Assembling the transducer Bolt Lock washer Nut Flat washerMetal Nut washer Rubber WashersDrilling mounting holes Attaching transducer to transomTransom Bottom Hull Flat-bottom hull Deep-vee hull Trolling Motor Bracket Installation single-frequency only TMB-S bracket Internal tooth washer Bolt Nut Flat washerPartial fish arches Transducer aimedEpoxy the transducer to a solid portion of the hull Shoot-thru-hull Installation Transducer location High speed Trolling speedSpread epoxy here Sand this surface Speed/Temperature Sensors Sensor Chart Sonar unit rear view Two-temperature sensor installationTemperature sensor Temperature sensor SP-X speed sensorOptional Speed Sensor Installation Good locationTransom Bottom of hull Power Connections Power connections for the sonar unit Mounting the Unit Bracket, In-Dash or Portable Bracket Installation Front72.9 173.9 23.4 137.9 157.9 Millimeter 56.9 Inch In-Dash Installation Portable Installation146.5 113.5Cell battery Face CoverPage Basic Sonar Operation KeyboardPower/lights on and off MenusMain Menu Main Menu Commands Sonar Menu Commands Sonar MenuPages Page Page Basic Sonar Quick Reference Sonar Operations To adjust sensitivity Fish Symbols vs. Full Sonar Chart To Restore Factory SettingsOther Free Training Aids ASP Advanced Signal Processing To change the ASP levelAlarms Depth AlarmsTo adjust and turn on the shallow alarm Zone Alarm To adjust and turn on the deep alarmTo adjust and turn on the zone alarm Fish Alarm To turn the fish alarm onBrightness Calibrate SpeedChart Speed Contrast Depth CursorDepth 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 Page To turn the Fish I.D. feature on FishTrackSymbols with FishTrack depths FishRevealTo turn on FishTrack To turn FishReveal on Fish Not Visible Fishfish arch Fish archesTo change the frequency setting to 50 kHz Frequency Change Transducer Frequency X126DF and X136DF onlyTo change the frequency setting to 200 kHz To adjust the Grayline levelGrayline Hard Fish near Grayline Hard Bottom Muddy bottom Muddy bottom bottomHyperScroll Noise RejectionOverlay Data To turn off displayed data To change displayed data font sizePing Speed & HyperScroll To change Ping SpeedPop-up Help To turn off HyperScrollReset Options Reset Water DistanceScreen Contrast and Brightness Sensitivity & Auto Sensitivity To adjust sensitivity in auto mode Automatic SensitivityTo adjust sensitivity in manual mode Set Keel OffsetTo turn Auto Sensitivity back on Set Language Software Version InformationSonar Chart Mode Sonar Chart Display OptionsTo change the chart mode color scheme Press MENUMENU↓ to Software InfoentFull Sonar Chart Split Zoom Sonar Chart Split Frequency Sonar Chart X126DF and X136DF onlyDigital Data/Chart Customizing the Digital Data/Chart Screen Sonar Simulator FlashGrafStop Chart To adjust the Surface Clarity levelSurface Clarity Transducer Type X126DF and X136DF only Units of Measure Upper and Lower LimitsZoom & Zoom Bar Zoom 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 Index Page Supplemental Material How to Obtain Service… Not toll-freeAccessory Ordering Information for all countries Visit our web site

X126DF, X136DF, X135, X125 specifications

Lowrance, a leading name in marine electronics, has made significant strides with its line of fish finders and chartplotters, particularly the X135, X125, X136DF, and X126DF models. These devices are engineered for anglers and boating enthusiasts seeking advanced charting, navigation, and fish tracking technologies.

The Lowrance X135 is equipped with a 7-inch display, delivering a clear view of sonar readings and navigational data. Its advanced sonar technology includes a powerful 4000-watt peak-to-peak output, offering exceptional fish detection capabilities. The X135 also supports Lowrance's exclusive Broadband Sounder technology, providing detailed images of the underwater environment. This feature helps users identify fish, structure, and thermoclines with remarkable precision.

The X125 model, while similar in design, offers a 5-inch display size. The device also features a dual-frequency sonar, allowing users to switch between 50 kHz for deep water and 200 kHz for shallow water, enhancing versatility for varying fishing conditions. Its integrated GPS allows for waypoint marking and route tracking, ensuring you can revisit those promising fishing spots effortlessly.

For those looking for advanced dual-frequency capabilities, the X136DF and X126DF models take things a step further. Both models feature a split-screen view, enabling users to monitor sonar and chartplotting simultaneously. The X136DF includes advanced navigation functionalities with an internal GPS antenna, which simplifies the installation process, while the X126DF may require an external antenna for GPS functionality.

These Lowrance models come equipped with various user-friendly features, such as customizable display settings, allowing users to tailor the information presented to their preferences. Both the X136DF and X126DF support multiple languages, catering to a global audience of boaters and fishermen.

Moreover, Lowrance devices incorporate innovative networking capabilities that allow for the interconnection of multiple devices onboard. With NMEA 2000 support, users can integrate radar, autopilot systems, and other electronics for a cohesive and efficient boating experience.

In conclusion, the Lowrance X135, X125, X136DF, and X126DF offer a fantastic mix of performance, user-friendly features, and advanced technology. Each device is designed to provide valuable insights for anglers and boaters, ensuring a successful day on the water. Whether you're a novice looking to enhance your fishing experience or a seasoned pro in search of the latest technology, these models represent a reliable choice.
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