How to display range rings on Furuno Marine Radar?
If the range rings are not displayed on your Furuno Marine Radar, check that the setting of Range Rings Brill in the Brill/Color sub menu is set to other than Off.
Why are the range rings not showing on my Furuno MARINERADAR FR-8122?
If the range rings are not displayed on your Furuno Marine Radar, adjust their brilliance on the Brill/Color menu. If that's unsuccessful, the associated circuit board may need to be replaced. If problems persist, replace the SPU Board.
How to fix Furuno MARINERADAR FR-8122 Marine Radar if power cannot be turned on?
If your Furuno Marine Radar power won't turn on, the fuse may be blown, so replace it. Check the wiring and input voltage to ensure they are correct. If the problem persists, the power supply board may need replacement.
How to troubleshoot Furuno MARINERADAR FR-8122 if you cannot turn on the power?
If your Furuno Marine Radar doesn't turn on, check the fuse to see if it's blown. Ensure the power connector is firmly fastened and inspect the power cable connector for corrosion. Also, check the power cable for damage and verify the battery's voltage output is within the range of 10.8-31.2 V.
Why is my Furuno MARINERADAR FR-8122 sensitivity poor even when tuned properly?
If your Furuno Marine Radar is properly tuned but sensitivity is poor, turn off the 2nd-trace echo rejector from the Echo menu. Clean any dirt from the radiator face. If the issue persists, with the radar transmitting on 48 nm range, check the magnetron current; if it's below normal, replace the magnetron. Also, check the MIC detecting current; if it's below normal, the MIC may have become detuned.
What to do if Furuno MARINERADAR FR-8122 picture is not updated or freezes?
If your Furuno Marine Radar picture isn't updating or it freezes, check that the signal cables of the bearing signal generator are securely fastened. If the issue continues, the SPU board may need to be replaced. Also, try turning the radar off and on.
Why is the true motion presentation not working properly on my Furuno MARINERADAR FR-8122 Marine Radar?
If the true motion presentation on your Furuno Marine Radar isn't working correctly, try pressing the MODE key a little harder, as there may be poor contact. If the TM display is inaccurate, check if heading and speed are being input and are accurate.
What to do if Furuno MARINERADAR FR-8122 Marine Radar shows marks but no echo?
If your Furuno Marine Radar is on, you've operated the STBY/TX key, marks and legends appear but no echo is present, check that the antenna cable is firmly fastened.
Why does my Furuno MARINERADAR FR-8122 show noise but no echo?
If your Furuno Marine Radar shows marks, indications, and noise, but no echo (and the transmission leak is absent), check the magnetron current. If that's not the issue, the modulator board may need to be replaced. If problems persist, replace the SPU board.
Furuno Marine Radar: marks appear, but no noise or echo. What to check?
If, when adjusting the GAIN with A/C SEA set to minimum on your Furuno Marine Radar, marks and indications appear but there's no noise or echo, check the continuity and isolation of the coaxial cable. If the cable is not the issue, the IF amplifier may need to be replaced. If the problem persists, check the coax line for a secure connection. If the connection is good, replace the SPU board.
General| Brand | Furuno |
|---|---|
| Model | MARINERADAR FR-8122 |
| Category | Marine Radar |
| Language | English |
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