Troubleshooting
Unit won't turn on:
1.Check the power cable's connection at the unit. Also check the wiring.
2.Make certain the power cable is wired properly. The red wire connects to the positive battery terminal, black to negative or ground.
3.Check the fuse.
4.Measure the battery voltage at the unit's power connector. It should be at least 11 volts. If it isn't, the wiring to the unit is defective, the battery terminals or wiring on the terminals are corroded, or the battery needs charging.
Unit turns on only in simulator mode:
There is a problem with the transducer or the transducer cable. Check the cable for damage.
Unit freezes, locks up, or operates erratically:
1.Electrical noise from the boat's motor, trolling motor, or an accessory may be interfering with the sonar unit. Rerouting the power and transducer cables away from other electrical wiring on the boat may help. Route the sonar unit's power cable directly to the battery instead of through a fuse block or ignition switch
2.Inspect the transducer cable for breaks, cuts, or pinched wires.
3.Check both the transducer and power connectors. Make certain both are securely plugged in to the unit.
Weak bottom echo, digital readings erratic, or no fish signals:
1.Make certain the transducer is pointing straight down. Clean the face of the transducer. Oil, dirt and fuel can cause a film to form on the transducer, reducing its effectiveness. If the transducer is mounted inside the hull, be sure it is shooting through only one layer of fiberglass and that it is securely bonded to the hull.
2.Electrical noise from the boat's motor can cause the sonar to automatically increase noise rejection level. This can cause the unit to eliminate weaker signals (fish) from the display.
3.The water may be deeper than the sonar's ability to find the bottom. If the sonar can't find the bottom signal while it's in the automatic mode, the digital sonar display will flash continuously.
4.Check the battery voltage. If the voltage drops, the unit's transmitter power also drops, reducing its ability to find the bottom or targets.
33