Insignia 105SX manual Unit comes on before I press POWER, and won’t turn off

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MAINTENANCE AND WARRANTY

TROUBLESHOOTING

the transducer is connected to the unit through a switch, temporarily connect it directly to the unit and try again. If none of these items identifies an obvious problem, the transducer itself may be the problem. Be sure to include the transducer if returning the unit for repair.

4.When in very shallow water, I get gaps in the bottom reading and inconsistent digital depth indication.

The 105SX will work reliably in water 3', or deeper. The depth is measured from the transducer, not necessarily from the surface.

5. The unit comes on before I press POWER, and won’t turn off.

Check the transducer cable—if the outer jacket of the cable has been cut and the cable is in contact with bare metal, you need to repair the cut with electrical tape. If there is no problem with the cable, disconnect the transducer from the unit and see if the problem is corrected, to confirm the source of the problem.

6. I get gaps in the reading at high speeds.

Your transducer needs adjusting. If the transducer is transom-mounted, there are two adjustments available to you—height, and running angle. Make small adjustments and run the boat at high speeds to determine the effect. It may take several tries to optimize high speed operation. This can also be a result of air or turbulence in the transducer location caused by rivets, ribs, etc.

7. My unit loses power at high speeds.

Your 105SX has over-voltage protection that turns the unit off when input voltage exceeds 20 VDC. Some outboard motors do not effectively regulate the power output of the engine’s alternator and can produce voltage in excess of 20 volts when running at high RPMs. The 105SX displays input voltage in the Diagnostic screen. Use this readout to determine if the voltage exceeds 20 VDC.

8. The screen begins to fade out. Images are not as sharp as normal.

Check the input voltage using Diagnostic. The 105SX will not operate on input voltages below 10 VDC.

9.The display shows many black dots at high speeds and high sensitivity settings.

You are seeing noise or interference caused by one of several sources. Noise

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Contents Operations Manual Thank YOU Table of Contents Parts Supplied Installation PreparationAccessories Installation OverviewDetermining How to Mount the Transducer Installation OverviewTrolling Motor Mounting Alternate Transducers and Mounting MethodsAlternate Transducers and Mounting Methods Portable MountingBeginning Installation Transducer ExchangeTransducer Exchange Using the 105SX HOW Sonar WorksHOW Sonar Works Feature Memory Simulator OperationSimulator Operation What You See On-Screen What YOU see ON-SCREENWhen in Auto mode, the horizontal What YOU see on Screen Control Functions Control FunctionsUsing the 105SX Range of Adjustment Indicator Menu Functions Menu FunctionsUsing the 105SX Depth Range Upper Zoom Limit On the right side of the display. Zoom can Using the 105SX Bottom Black. There are two Raw Sonar ID+ On Advanced Features Using the Diagnostic FeatureUsing the Diagnostic Feature Maintenance and Warranty MaintenanceMaintenance Troubleshooting TroubleshootingNothing happens when I turn the unit on There is no bottom reading visible on the display There is no transducer detectedUnit comes on before I press POWER, and won’t turn off My unit loses power at high speedsGet gaps in the reading at high speeds Humminbird ONE Year Full Warranty WarrantyService Policy Service PolicyCustomer Resource Center Customer Resource CenterTOP Specifications
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