How to fix noise in the Furuno FSV-84 picture?
If your Furuno Sonar picture contains noise, check the equipment ground. Also, relocate the power cable if it is too close to the signal cable. If there is debris on the sea surface, use the interference rejector on the H-SCAN SETTING or V-SCAN SETTING menu.
What to do if the Furuno FSV-84 Sonar echo is weak?
If you are experiencing a weak echo on your Furuno Sonar, ensure that the output power is not set to minimum; set it to maximum on the H-SCAN SETTING menu. Also, readjust TVG on the H-SCAN SETTING or V-SCAN SETTING menu. Note that readjustment of TVG is necessary when gain is adjusted.
How to troubleshoot if Furuno Sonar cannot turn on?
If your Furuno Sonar cannot turn on, check the cables between the transceiver unit, processor unit, and monitor unit. Verify the ship’s mains. Have a qualified technician check the fuse in the transceiver unit.
Why is the Furuno FSV-84 Sonar bottom echo irregular?
An irregular bottom echo on your Furuno Sonar can be due to rough seas, where the distance to the bottom changes due to rolling and pitching. It can also occur when a long range is selected, as the transmission period is longer, making the sonar more susceptible to the ship’s pitching and rolling affecting echo detection.
What to do if Furuno FSV-84 displays a strange color?
If your Furuno Sonar displays a strange color, the brilliance setting may be too low. Increase the brightness using the [BRILLIANCE] control.
What to do if Furuno Sonar shows 'TRANSDUCER NOT RETRACTED!!'?
CUT OFF POWER LINE TO MONITOR UNIT AND HULL UNIT. PRESS [R/B] KEY TO TURN OFF ALARM.
What to do if Furuno FSV-84 shows 'NO RESPONSE FROM TRANSCEIVER UNIT'?
TURN OFF AND ON POWER AGAIN, OR CHECK POWER LINE TO TRANSCEIVER UNIT. PRESS [R/B] KEY TO TURN OFF ALARM.
Explains the function of each control on the FSV-84 unit.
Details the procedure for powering the unit on and off.
Describes how to operate the transducer for deployment and retrieval.
Explains how to adjust the screen brightness for optimal viewing.
Guides on adjusting the dimmer for the control panel illumination.
Covers the selection and configuration of different display modes.
Explains how to adjust receiver gain for clear echo detection.
Provides an introduction to the system's menu structure and navigation.
Outlines the fundamental steps for operating the horizontal mode.
Describes the various symbols and data displayed in the horizontal mode.
Explains how to select and adjust the detection range.
Describes how to set the direction of the emitted sound wave.
Details how to measure distance and bearing to a detected target.
Explains the use of TVG function to compensate for sound propagation loss.
Covers methods to reduce unwanted echoes from the bottom.
Covers techniques to filter out unwanted noise and interference.
Explains how to adjust horizontal beamwidth for better resolution.
Covers the target lock function for automatically tracking fish schools.
Explains using the audio function to monitor fish schools.
Describes the four available presentation modes for the display.
Explains how to set up an aural alarm for fish echoes.
Covers saving and recalling pictures from the unit's memory.
Presents an overview of the options available in the OTHERS menu.
Provides information for interpreting elements on the horizontal display.
Outlines the fundamental steps for operating the vertical mode.
Explains the concept of the vertical mode and its comparison to horizontal mode.
Details the various indications and marks shown in the vertical display.
Covers selecting and adjusting the detection range for the vertical display.
Details how to measure range using the trackball on the vertical display.
Explains using TVG to compensate for sound propagation loss in vertical mode.
Covers methods to suppress unwanted bottom echoes in vertical mode.
Covers techniques to filter out noise and interference in vertical mode.
Explains how to adjust vertical beamwidth for reduced surface reflections.
Describes how to enlarge a selected vertical display.
Presents an overview of the OTHERS menu for vertical mode.
Discusses how the vertical mode is useful for bonito and tuna fishing.
Outlines the fundamental steps for operating the slant mode.
Details the indications and marks displayed in slant mode.
Covers selecting and adjusting the detection range for the slant display.
Describes how to set the direction of the emitted sound wave in slant mode.
Explains automatic training of Tx/Rx beams for wide area search.
Details measuring distance and bearing to a target in slant mode.
Explains using TVG to compensate for sound propagation loss in slant mode.
Covers methods to suppress unwanted bottom echoes in slant mode.
Covers techniques to filter out noise and interference in slant mode.
Explains how to adjust horizontal beamwidth for better resolution.
Covers the target lock function for automatically tracking fish schools.
Explains using the audio function to monitor fish schools.
Explains the offcenter feature for relocating fish schools.
Explains how to set up an aural alarm for fish echoes above preset strength.
Explains how to estimate fish school volume using estimate keys.
Covers methods to estimate fish school direction and speed.
Describes how to mark specific locations or own ship's position.
Explains how to inscribe a net course mark to guide net shooting timing.
Describes how to observe net behavior using net sonde connection.
Presents an overview of the OTHERS menu for slant mode.
Provides information for interpreting elements on the slant display.
Outlines the fundamental steps for operating the echo sounder mode.
Describes the common display types for echo sounders.
Guides on selecting echo sounder modes using the MODE key.
Covers selecting and adjusting the display range for echo sounders.
Explains how to adjust the display level of the echo sounder picture.
Describes how picture advance speed affects the display of fish schools.
Details measuring depth and distance using the trackball on the echo sounder.
Explains estimating fish school volume using estimate keys in echo sounder modes.
Provides an overview of the ES1 SETTING menu for echo sounder configuration.
Provides an overview of the ES2 SETTING menu for echo sounder configuration.
Outlines the fundamental steps for operating the history mode.
Shows sample history display data and explains the history marker.
Guides on interpreting and setting up the history display.
Details how to locate and set the history marker on the display.
Covers setting the picture advance mode for the history display.
Describes the comprehensive numeric/graphic data display.
Explains the abbreviated format of numeric/graphic data.
Details the description, range, and format of various data items.
Explains how to program user-defined menu items for quick access.
Describes the functions and default settings of the programmable function keys.
Explains the USER PROG control for instant equipment setup.
Lets you delete selected marks and tracks from the display.
Sets various display parameters for the sonar.
Sets fish alarm and audio bearing mark sector parameters.
Presets functions and provides memory card operations.
Provides submenus for mark configuration and size settings.
Explains how to store images and configurations to a memory card.
Covers procedures for loading and deleting files from memory cards.
Details the process of preparing memory cards for system use.
Provides monthly checks for keeping the equipment in good working order.
Details maintenance procedures for the hull unit.
Explains how to replace fuses in the processor, transceiver, and hull units.
Offers common symptoms and remedies for equipment troubles.
Lists and explains warning messages that may appear on the display.
Describes how error codes are displayed and what to do if they appear.
Explains status messages that alert the operator during operation.
Provides a diagnostic facility for testing the equipment.
Guides on how to open and use the TEST menu.
Details how to perform a board test for circuit diagnostics.
Explains how to test keys, controls, and trackball of the control unit.
Describes how to check color and brilliance display using test patterns.
Details the Rx test procedure for service technicians.
Explains the noise test procedure for service technicians.
Provides methods to raise the transducer if it cannot be done via switches.
Details the procedure for automatically raising the transducer from the hull unit.
Explains the manual procedure for raising the transducer.
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