Y
yhernandezSep 12, 2025
Why echoes do not appear on Furuno GPS?
- TtracybrownSep 13, 2025
If marks and characters appear on your Furuno GPS but echoes do not, check that the antenna cable is fastened.

Why echoes do not appear on Furuno GPS?
If marks and characters appear on your Furuno GPS but echoes do not, check that the antenna cable is fastened.
What to do if Furuno GPS position is not fixed?
If your Furuno GPS position is not fixed, check that the antenna connector is fastened and the navigator is correctly connected.
How to fix Furuno Marine Equipment when you can not turn on the power?
If your Furuno Marine Equipment won't power on, try these steps: * Check for a blown fuse.* Ensure the power connector is securely fastened.* Inspect the power cable connector for any signs of corrosion.* Look for any damage to the power cable itself.* Verify that the battery provides the correct voltage output.
How to display range rings on Furuno GPS?
If range rings are not displayed on your Furuno GPS, select [Rings] from the RotoKey menu to activate them.
What to do if nothing appears on Furuno GPS TZTBB screen after pressing the key?
If nothing appears on the screen of your Furuno GPS (TZTBB model) after you press the key, check if the monitor is powered and if the monitor cable is connected.
What to do if Furuno GPS TZTBB picture is not displayed properly?
If the picture on your Furuno GPS (TZTBB) is not displayed properly, try turning the power off and on. If the problem continues, contact your dealer.
What to do if picture appears but zero line does not appear on Furuno Marine Equipment?
If the picture appears but the zero line does not on your Furuno Marine Equipment, the picture may be shifted. Check the shift setting, and also check if the draft is set to zero or higher.
Why the depth indication does not appear on Furuno Marine Equipment?
If the depth indication does not appear on your Furuno Marine Equipment, for manual operation, adjust gain and range to display the bottom echo (in reddish-brown). Also, adjust bottom level HF/LF.
Why zero line does not appear on Furuno GPS picture?
If the picture appears on your Furuno GPS but the zero line does not, the picture may be shifted. Check the shift setting and verify if the draft is set to zero or higher.
What to do if marks and characters appear, but no picture appears on Furuno Marine Equipment?
If marks and characters appear on your Furuno Marine Equipment but no picture is visible, check that the transducer cable is connected.
| Resolution | 1280 x 800 pixels |
|---|---|
| Display Type | LCD |
| Brightness | 1000 cd/m² |
| Touchscreen | Yes |
| Waterproof Rating | IP56 |
| Operating Temperature | -15°C to +55°C |
| Power Supply | 12-24 VDC |
| Weight | 3.5 kg |
| Display Size | 14.1 inches |











