Furuno FR-1510 MARK-3

Questions and Answers

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Robert SmithAug 15, 2025
What to do if Furuno FR-1510 MARK-3 Marine Radar power is on but there is no echo?
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  rkingAug 15, 2025
  If your Furuno Marine Radar shows marks, legends, and noise but no echo, the issue might be with the TX fuse F801 in the transmitter unit. If the fuse is blown, replace it. However, if it blows again, the modulator or associated circuit could be defective. Other potential causes include a faulty magnetron (check magnetron current and replace if necessary), a defective modulator board, or a defective SPU board, which would also need replacement.
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garciajennaAug 18, 2025
How to improve poor sensitivity on Furuno FR-1510 MARK-3?
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  tmatthewsAug 18, 2025
  If adjusting the TUNE control on your Furuno Marine Radar doesn't improve sensitivity, the magnetron may be deteriorated (check magnetron current and replace if necessary). Also, the MIC might be detuned (check MIC detecting current and tune if necessary). Other possible causes include dirt on the radiator face (clean the surface), water ingress to the waveguide or feeder line (remove the water), or the second trace rejection being enabled.
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Gregory WilliamsAug 21, 2025
What to do if Furuno Marine Radar picture is not updating?
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  Jonathan HorneAug 21, 2025
  If your Furuno Marine Radar picture is not updating or freezes, check the connection of signal cables to the bearing signal generator board in the antenna unit. If the issue persists, the SPU board might be defective and require replacement. You can also try turning the radar off and on again to resolve a video freeze-up.
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John PotterAug 25, 2025
What to do if Furuno Marine Radar range changed but picture not changing?
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  Melissa SullivanAug 25, 2025
  If the range is changed on your Furuno Marine Radar, but the picture isn't updating, try pressing the [+] and [-] range keys several times. If this doesn't work, the keypad may need to be replaced. A defective SPU board or mother board could also be the cause and require replacement. Additionally, try turning the radar off and on again to resolve a potential video freeze-up.
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Christopher FergusonAug 27, 2025
Why Furuno FR-1510 MARK-3 Marine Radar power turned on but does not operate at all?
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  Grace MorrisAug 27, 2025
  If your Furuno Marine Radar's power is on but the unit isn't operating and the control panel isn't illuminated, check the following: blown fuses F1 and F2 (replace if necessary), mains voltage/polarity (correct wiring and input voltage), power supply board (replace if necessary), and illumination lamps (replace defective lamps).
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Tara ArellanoAug 30, 2025
Why is true motion presentation not working correctly on Furuno FR-1510 MARK-3?
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  Marcus FryeAug 30, 2025
  If true motion presentation isn't working correctly on your Furuno Marine Radar, try pressing the MODE key a little harder to address poor contact. Ensure the selection is accessed by pressing the MODE key until TM appears. Verify that the speed entry is correct. Also, make sure that the speed and compass inputs are accurate, as inaccurate inputs can affect TM display.
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Laura GriffinSep 2, 2025
How to fix poor discrimination in range on Furuno FR-1510 MARK-3 Marine Radar?
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  Isabel NelsonSep 2, 2025
  If you're experiencing poor discrimination in range on your Furuno Marine Radar, it might be due to the sea clutter control not functioning properly. Check the setting of the A/C SEA control. If A/C SEA is only seen at a very close range, suspect an inaccurate frequency of the reference oscillator.
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leslie32Sep 5, 2025
Why are range rings not displayed on Furuno FR-1510 MARK-3?
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  rogersrobertSep 5, 2025
  If range rings are not displayed on your Furuno Marine Radar, adjust the brilliance of range rings at the BRILL menu to see if intensity is increased. If this is unsuccessful, replace the associated circuit board. Also, the SPU board may be defective and require replacement.
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Jared HoffmanSep 8, 2025
What causes Furuno Marine Radar target not to be tracked correctly?
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  buchananrebeccaSep 8, 2025
  If a target is not tracked correctly on your Furuno Marine Radar, it may be due to poor definition of targets in sea clutter. Adjust the A/C SEA and A/C RAIN controls adequately to improve target definition.
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Brenda HarmonSep 12, 2025
What causes only 2 parallel index lines when 6 lines are wanted on Furuno FR-1510 MARK-3 Marine Radar?
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  Scott KimSep 12, 2025
  If your Furuno Marine Radar is only displaying 2 parallel index lines when you want 6, it's likely due to an incorrect setting of index line intervals. Adjust the index line interval appropriately.