X125, X126DF, X135, X136DF
Fish-finding & Depth Sounding Sonars
Operation Instructions
Copyright 2003 Lowrance Electronics, Inc All rights reserved
Sec. 4 Sonar Options & Other Features
Sec. 2 Installation & Accessories
Speed/Temperature Sensors
Sec. 3 Basic Sonar Operation
Sec. 6 Supplemental Material
Sec. 5 Sonar Troubleshooting
How this manual can get you out on the water, fast
Section 1 Read Me First
X136DF and
Capabilities and Specifications X125, X126DF, X135, X136DF General
X126DF and
Back-up memory
How Sonar Works
Menu Commands
How to use this manual typographical conventions
Arrow Keys
Keyboard
Instructions = Menu Sequences
Page
Transducer Installation
Section Installation & Accessories
Preparations
Selecting a Transducer Location
Recommended Tools and supplies
Good and poor transducer locations
How low should you go?
Align transducer centerline with hull bottom
Shoot-thru-hull vs. Transom Mounting
TRANSOM TRANSDUCER ASSEMBLY AND MOUNTING
1. Assembling the bracket
Alignment letters Alignment positions Transducer Transducer bracket
Align plastic ratchets in bracket
Insert and align ratchets
Add ratchets to bracket and transducer
2. Aligning the transducer on the transom
Insert bolt and check transducer position on transom
3. Assembling the transducer
5. Attaching transducer to transom
4. Drilling mounting holes
Transom Transom
Flat-bottom hull
Bottom of hull
Deep-vee hull
Align transducer centerline with hull bottom and attach transducer to
Attach motor mounting bracket to transducer
TROLLING MOTOR BRACKET INSTALLATION single-frequency only
Transducer mounted on trolling motor, side view
SHOOT-THRU-HULL PREPARATION
TRANSDUCER ORIENTATION AND FISH ARCHES
Partial fish arches
Transducer aimed
Flotation material
Fill with polyester resin
Inner hull
Epoxy to hull first
Epoxy transducer to hull
Shoot-thru-hull Installation
Speed/Temperature Sensors
Sonar unit rear view
Sensor Chart
Two-temperature sensor installation MY-4X Cable
Three-temperature sensor installation
Stern view showing good location for mounting sensor on transom
Optional Speed Sensor Installation
Power Connections
Black wire
Optional power off switch for saltwater installations To unit
Red wire with
battery
Sonar unit cable connections
Mounting the Unit Bracket, In-Dash or Portable
Front
Bracket Installation
sonar unit when mounted on gimbal bracket
Front view left and side view right showing dimensions of the
72.9 2.87
173.9
Portable Installation
In-Dash Installation
In-Dash
Template4.46
D cell battery
Face Cover
Page
Keyboard
Section 3 Basic Sonar Operation
Menus
Power/lights on and off
Main Menu
Main Menu
Main Menu Commands
Sonar Menu
Pages
Surface signal
Sonar chart display options from left digital data and FlashGraf
Basic Sonar Quick Reference
Sonar Operations
To adjust sensitivity
Important Tip
Fish Symbols vs. Full Sonar Chart
Free training emulator is available for your unit on our web site
Other Free Training Aids
ASP Advanced Signal Processing
Section 4 Sonar Options & Other Features
To change the ASP level
Depth Alarms
Alarms
To adjust and turn on the deep alarm
Zone Alarm
To adjust and turn on the zone alarm
Brightness
Fish Alarm
Calibrate Speed
Chart Speed
Depth Cursor
Contrast
Depth Range - Automatic
Cursor line
Depth Range - Upper and Lower Limits
Depth Range - Manual
EXITEXITEXIT Fish arches Area zoomed
To change the upper and lower limits
FasTrack
Fish I.D. Fish Symbols & Depths
To turn off upper and lower limits
You may see fish symbols on the screen when actually, there are no fish. The reverse is also true. The illustrations on the next page show how Fish I.D. can actually miss fish that are present
FishTrack
To turn the Fish I.D. feature on
To turn on FishTrack
FishReveal
Fish not visible Visible Fishfish arch Fish arches
To turn FishReveal on
Frequency Change Transducer Frequency X126DF and X136DF only
To change the frequency setting to 50 kHz
To adjust the Grayline level
To change the frequency setting to 200 kHz
Grayline
Fig. 1B
Fig. 1A Fig. 2A Fig. 3A
Hard
Fish near
Noise Rejection
HyperScroll
Overlay Data
To change displayed data font size
To turn off displayed data
To change Ping Speed
Ping Speed & HyperScroll
Pop-up Help
To adjust Sensitivity
To turn off HyperScroll
Reset Water Distance
Reset Options
Screen Contrast and Brightness
Sensitivity & Auto Sensitivity
Automatic Sensitivity
To adjust sensitivity in auto mode
Set Keel Offset
To adjust sensitivity in manual mode
To turn Auto Sensitivity back on
Software Version Information
Set Language
Sonar Chart Display Options
Sonar Chart Mode
To change the chart mode color scheme
Full Sonar Chart
Split Frequency Sonar Chart X126DF and X136DF only
Split Zoom Sonar Chart
To adjust sensitivity in auto mode
Digital Data/Chart
The Split Frequency Sonar Chart page allows you to adjust
Digital Data/Chart
1. From the Sonar Page in Digital Data mode, press MENU↓ to
FlashGraf
Sonar Simulator
To adjust the Surface Clarity level
Stop Chart
Surface Clarity
Transducer Type X126DF and X136DF only
Upper and Lower Limits
Units of Measure
Zoom & Zoom Bar
To set Speed/Distance Unit of Measure Press ↑ or ↓ to change the
At left, Sonar Page, normal view. Center, same view zoomed to
Zoom Pan
Right, same view zoomed to
Page
Weak bottom echo, digital readings erratic, or no fish signals
Section Sonar Troubleshooting
Unit wont turn on
Unit freezes, locks up, or operates erratically
NOISE
No fish arches when the Fish I.D. feature is off
Page
Page
Index
Page
Section 6 Supplemental Material
LOWRANCE ELECTRONICS FULL ONE-YEAR WARRANTY
LOWRANCE ELECTRONICS 12000 E. SKELLY DRIVE, TULSA, OK 800
…in the USA
How to Obtain Service…
…in Canada
…outside Canada and the USA
Shipping Information
Accessory Ordering Information for all countries
Lowrance Pub
Visit our web site
Copyright
All Rights Reserved
