Humminbird 128 manual Test the Installation

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INSTALLATION

TEST THE INSTALLATION

TEST THE INSTALLATION

Testing should be performed with the boat in the water, however you can initially confirm basic operation with the boat trailered.

Press POWER once to turn the unit on. There will be an audible chirp when any button is pressed to confirm the button press. If the unit does not power-up, ensure the unit is fully seated on the mount and that power is available.

The first screen provides four options: Start-up, Options, Simulator, and Diagnostic. A message at the bottom of the screen indicates the transducer connection. If no transducer is detected (or one is not connected), the message will indicate this and the unit will go into simulator after the initial screen times out.

Note: the transducer must be submerged in water for reliable transducer detection.

If a transducer is detected, the unit will enter “Start Up” or normal operation unless you choose another option. If you do not press any button before the timer reaches “0”, the normal operation screen is displayed. If the boat is in water, sonar data appears.

If the bottom is visible on screen with a digital depth readout, the unit is working properly. Ensure the boat is in water greater than 2’ but less than the depth capability of the unit and the transducer is fully submerged. Remember the sonar signal cannot pass through air.

If the unit is working properly gradually increase the boat speed to test high-speed performance. If the unit-functions well at low speeds but begins to skip or miss the bottom at higher speeds, the transducer requires adjustment. Refer to the appropriate transducer installation section for more detail.

Note: it is often necessary to make several incremental transducer adjustments before optimum high-speed performance is achieved.

Important: For Transom Mount transducer installations, install the third mounting screw after the final transducer adjustments.

Humminbird 3 Humminbird Lane Eufaula, Alabama 36027

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Contents Page Accessories Installation OverviewParts Supplied Determining How to Mount the Transducer Thru-Hull Mounting Alternate Transducers and Mounting MethodsPortable Mounting Trolling Motor MountingTransducer Exchange Beginning InstallationStep One Determine Where to Mount the Transducer Transom InstallationStep Three Assemble the Transducer Step Two Drill the Mounting HolesStep Four Mount the Transducer to the Transom Step Five Adjust the Running Position of the TransducerStep Six Route the Cable Inside the Hull Installation Step One Determine the Mounting LocationStep Two Test the Mounting Location Step Three Permanently Mount the Transducer Control Head Installation Step One Determine Where to MountStep Two Connect the Power Cable to the Boat Step Four Run the Cables Step Three Drill the Mounting HolesYour Humminbird is now ready for operation Step Five Assembling the Connector HolderTest the Installation Testing the Installation Simulator Operation What YOU see ON-SCREENInterpreting the ON-SCREEN Information Page Control Functions Senstivity Menu FunctionsDepth Range Zoom Fish Alarm Depth AlarmFish ID Using Diagnostic