Insignia 450TX manual Troubleshooting, Nothing happens when I turn the unit on

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MAINTENANCE

TROUBLESHOOTING

Many requests for repair received by Humminbird involve units that do not actually need repair. These units are returned “no problem found.” If you have a problem with your 450TX, use the following troubleshooting guide before sending your unit in for repair. The 450TX contains several tools that can aid in determining if there is a problem and how to isolate and repair the problem in many cases.

1. Nothing happens when I turn the unit on.

Check the power cable connection at both ends. Be sure the cable is connected correctly to a reliable power source—red lead to positive, black lead to negative or ground. Ensure the power available at the mount is between 10 and 20 VDC. If the unit is wired through a fuse panel, ensure the panel is powered. Often accessory fuse panels are controlled by a separate switch or the ignition switch. Also, often a fuse can appear to be good when in fact is not. Check the fuse with a tester or replace it with a fuse known to be good.

Check the power connection to the 450TX. It is possible to force the power cable connector into the cable holder incorrectly. If the connector is reversed, the unit will not work. Examine the contacts on the back of the unit to ensure there is no corrosion. Finally, ensure the unit is firmly seated on the mount. The electrical contacts are not made until the unit is fully seated.

Ensure the metal cable retainer is properly installed in the mount. If not, the power connection may push out when the unit is put on the mount.

2. There is no transducer detected.

The 450TX has the ability to detect and identify that a transducer is connected. First, ensure that an appropriate transducer connector is positioned correctly in the connector holder, and that the unit is fully seated on the mount. The 450TX will work with the standard tri-beam transducer.

Second, inspect the transducer cable from end to end for breaks, kinks, or cuts in the outer casing of the cable. Also ensure the transducer is fully submerged in water. If the transducer is connected to the unit through a switch, temporarily connect it directly to the unit and try again. If none of

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Contents Operations Manual Cal Table of Contents Installation Overview Installation PreparationAccessories Parts SuppliedInstallation Overview Determining How to Mount the TransducerPortable Mounting Alternate Transducers and Mounting MethodsAlternate Transducers and Mounting Methods Trolling Motor MountingTransducer Exchange Beginning InstallationTransducer Exchange HOW Sonar Works Using the 450TXHOW Sonar Works Simulator Operation Simulator OperationWhat YOU see ON-SCREEN Feature MemoryWhat You See On-Screen Installed Shows What YOU see on Screen Control Functions Control Functions 2d View Large Digit View Chart View Arrow Keys. The UP Arrow and Down Arrow make Menu Functions Menu FunctionsLow Sensitivity Using the 450TX Box will move vertically to remain in the general Using the 450TX Using the 450TX Voltages in excess of 20 or less Using the 450TX Bottom Black View ID+ On Raw Sonar Using the 450TX Speed offset is remembered after power is disconnected Using Diagnostic Advanced FeaturesUsing the Diagnostic Feature Advanced Features Advanced Features Using Alternative Transducers Using Alternative TransducersWide side operation Advanced Features Maintenance MaintenanceMaintenance and Troubleshooting TroubleshootingNothing happens when I turn the unit on TroubleshootingThere is no transducer detected Unit comes on before I press POWER, and won’t turn off There is no bottom reading visible on the displayMy unit loses power at high speeds Get gaps in the reading at high speedsSpecifications TOP
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