Insignia 250DX manual Troubleshooting, Nothing happens when I turn the unit on

Page 28

MAINTENANCE

TROUBLESHOOTING

mild cleaner. Do not wipe while dirt or grease is on the lens. Be careful to avoid scratching the lens.

•If your boat remains in the water for long periods of time, algae and other marine growth can reduce the effectiveness of the transducer. Periodically clean the face of the transducer with liquid detergent. Pivoting the transducer up in the bracket may allow better access for inspection or cleaning.

•If your boat remains out of the water for a long period of time, it may take some time to wet the transducer when returned to the water. Small air bubbles can cling to the surface of the transducer and interfere with proper operation. These bubbles dissipate with time, or you can wipe the face of the transducer with your fingers after the transducer is in the water.

•Never leave the 250DX in a closed car or trunk—the extremely high temperatures generated in hot weather can damage the electronics.

TROUBLESHOOTING

Do not attempt to repair the 250DX yourself. There are no user serviceable parts inside, and special tools and techniques are required for reassembly to ensure the waterproof integrity of the housing. Repairs should be performed only by authorized Humminbird technicians.

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 250DX, use the following troubleshooting guide before calling Customer Support or sending your unit in for repair. The 250DX 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.

26

Page 27 Page 29
Image 28
Page 27 Page 29
Contents Operations Manual Thank YOU Table of Contents Installation Preparation AccessoriesInstallation Overview Parts SuppliedInstallation Overview Determining How to Mount the TransducerAlternate Transducers and Mounting Methods Alternate Transducers and Mounting MethodsPortable Mounting Trolling Motor MountingTransducer Exchange Beginning InstallationTransducer Exchange HOW Sonar Works Using the 250DXHOW Sonar Works Simulator Operation Feature MemorySimulator Operation What YOU see ON-SCREEN What You See On-ScreenDepth of the water changes, the range What YOU see on Screen Control Functions Control FunctionsUsing the 250DX Using the 250DX Menu Functions Menu FunctionsUsing the 250DX Depth Range Upper Zoom Limit To disable Zoom, press the Menu button until Fish symbols shown on-screen Using the 250DX Using the 250DX Using the 250DX Numeral Size. Two options are available Using the 250DX Using Diagnostic Advanced FeaturesUsing the Diagnostic Feature Maintenance MaintenanceMaintenance Troubleshooting TroubleshootingNothing happens when I turn the unit on There is no transducer detected There is no bottom reading visible on the displayUnit comes on before I press POWER, and won’t turn off Get gaps in the reading at high speedsMy unit loses power at high speeds Screen begins to fade out. Images are not as sharp as normalCustomer Support Customer SupportSpecifications TOP
Top Page Image Contents