D
Daniel ValdezAug 16, 2025
What to do if Furuno Marine Radar power is on but there is no echo?
- DDonald PriceAug 16, 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.