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Joseph MyersJul 31, 2025
How to release the hold feature on Furuno Sonar?
- WWendy FloresJul 31, 2025
If the image on your Furuno Sonar is not updating, click the HELD button on the settings dialog box to release the hold feature.
How to release the hold feature on Furuno Sonar?
If the image on your Furuno Sonar is not updating, click the HELD button on the settings dialog box to release the hold feature.
Why does noise or interference appear on my Furuno Sonar screen?
If you're seeing noise or interference on your Furuno Sonar screen, it could be due to several reasons. First, check if the gain setting is too high. A poor ground connection could also be the cause. Additionally, ensure that cables from other equipment are not too close to the Surface Processor Unit. Finally, a noise problem might be the root cause, so inspect the cable, winch, and slip ring using a test cable.
What to do if the Furuno TS-331A image undulates on a CRT monitor?
If the image on your Furuno Sonar's CRT monitor undulates, a magnetic field-generating device (like a rectifier or transformer) might be too close to the monitor. To identify the culprit, turn off all equipment and then turn them on one by one. Also, try increasing the distance between the interfering equipment and the Surface Processor Unit.
Provides an overview of the TS-331A Wired Trawl Sonar and the manual's purpose.
Highlights the key capabilities and components of the TS-331A system.
Details the main control unit, its components, and connection methods.
Describes the underwater unit, its components, and mounting on the trawl.
Provides step-by-step instructions for powering the system on and off correctly.
Explains the optional catch sensor, its function, and power source.
Illustrates and describes the main display windows and interface elements.
Explains the various indicators and symbols shown on the display screen.
Explains the different display modes: Polar, Sector, and Locked.
Guides users on configuring sonar image parameters via the settings dialog.
Describes using the Locked mode to monitor the trawl's location and prevent damage.
Instructions on how to mark echoes on the sonar display using lines and symbols.
Covers saving real-time sonar data and reviewing recorded files.
How to save and load system settings for specific fishing conditions.
Describes the display of the echo sounder window and its content.
Guides users on configuring echo sounder image parameters.
Explains how the echo sounder display helps in monitoring trawl position.
How to set units for temperature (Fahrenheit/Celsius) and depth (meters/feet/fathoms).
Instructions for setting display limits for depth and temperature readings.
How to correct inaccurate depth or temperature readings using offsets.
Details commands for connecting to the sonar, printing, and exiting the program.
Describes options for managing display windows, full-screen mode, and indicators.
Covers settings for color thresholds, noise filters, roll correction, and display options.
Explains how to configure catch sensors, including enabling, ID, and position.
Describes the window showing catch sensor status and activation time.
Step-by-step guide for replacing batteries and the O-ring in the catch sensor.
Provides monthly checks for maintaining the equipment's performance.
Instructions on how to replace a blown fuse in the system.
Procedure for testing the underwater unit's functionality using a test cable.
Offers solutions for common operational problems and image issues.
Explains how to perform diagnostic tests for equipment checks.
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