What to do if my Furuno FE-700 Marine Equipment shows no picture and no reading measure?
If your Furuno Marine Equipment displays no picture and provides no reading measure, the issue might stem from several causes. First, check the supply voltage to ensure it is adequate. A low power supply could be the culprit. Second, inspect the fuse and replace it if it's blown. Lastly, examine the power cable for any damage and repair as necessary.
Why is there no echo sounding picture on my Furuno FE-700?
If you're not getting an echo sounding picture on your Furuno Marine Equipment, consider these potential causes: First, check the transducer cable for any damage and repair it if necessary. Second, ensure that the transducer cable connections are secure and properly tightened. Finally, verify that the transmitter is working by selecting the maximum output power in the System Menu 1 (refer to section 3.2).
What to do if I have loss of seabed display on Furuno FE-700?
If you're experiencing a loss of seabed display on your Furuno Marine Equipment, consider these points: First, ensure that your equipment is not out of range by checking the range scale setting. Also, air bubbles caused by going astern or running over other ship wakes can cause this issue; this is normal and not a sign of equipment trouble.
How to reduce heavy noise on Furuno FE-700?
If you're encountering heavy noise with your Furuno Marine Equipment, consider the following: The transducer's installation location may be causing interference; try to identify the source of the noise and relocate the transducer if the noise persists. If there are other echo sounders nearby, unfortunately, there is no ideal solution to completely eliminate the problem.
Why does my Furuno Marine Equipment have an irregular display?
An irregular display on your Furuno Marine Equipment may be due to several factors. Low sensitivity can cause this; try increasing the Gain by turning the GAIN control clockwise. Also, a muddy seabed can result in low reflectivity. Finally, marine life attached to the transducer can interfere with the display; remove any marine life from the transducer when the vessel is dry docked.
What causes surface noise on Furuno Marine Equipment?
Surface noise on your Furuno Marine Equipment can be attributed to aeration in the near-surface area or rough weather conditions. These are not equipment-related problems.
Overview of the FE-700 system components and their interconnections.
High-level block diagram illustrating the FE-700's main functional units and data flow.
Explanation of the FE-700's power supply system, including AC/DC conversion and voltage regulation.
Description of the circuit responsible for transmitting sonar signals at 50/200 kHz frequencies.
Details of the circuit that amplifies and processes received sonar signals from transducers.
Guide to performing self-tests for ROM, DRAM, SRAM, battery, keys, and display patterns.
Explains common alarm messages like "LOW BATTERY ALARM" and error messages like "EPFS ERROR".
Shows how the FE-700 Display Unit, Distribution Box, and other peripherals are connected.
General| Frequency | 50/200 kHz |
|---|---|
| Power Supply | 12-24 VDC |
| Operating Temperature | -15°C to +55°C |
| Display Type | Color LCD |
| Interface | NMEA 0183 |
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