6.5 Troubleshooting
The table below provides simple troubleshooting procedures which you may follow to restore normal operation. If you cannot restore normal operation, contact your dealer.
SYMPTOM | PROBABLE CAUSES | REMEDY |
No picture; no reading | Low power supply | Check the supply voltage. |
measure | Fuse blown | Replace the fuse. |
| ||
| Power cable damaged | Check the cable and repair. |
No echo sounding picture | Transducer cable damaged | Repair the cable. |
| Transducer cable connection | Tighten the connections. |
| loosened |
|
| Transmitter not working | Make sure the maximum output power is |
|
| selected. (See section 3.2 System Menu 1.) |
Irregular display | Low sensitivity | Increase the Gain by turning the GAIN control |
|
| clockwise. |
| Low reflectivity from seabed | Suspect muddy seabed. |
| Marine life on transducer | Remove marine life from the transducer when |
|
| dry docked. |
Loss of seabed display | Out of range | Check the range scale setting. |
| Air bubbles caused by going | This is normal, it is not a sign of equipment |
| astern or running over other | trouble. |
| ship wakes |
|
Heavy noise | Wrong installation place of | Find cause of noise. Relocate the transducer if |
| transducer | noise persists. |
| Other echo sounders nearby | If more than one echo sounder is working on |
|
| the ship, there is no ideal measure to cure the |
|
| problem. |
Surface noise | Aeration in near surface area | Not an equipment problem. |
| Rough weather | Not an equipment problem. |
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