How to Repair a Broken Eagle Transducer

Eagle is a brand of fish finder devices that are mounted on the inside of boats to help fishermen locate schools of fish under the water. The Eagle fish finder uses a transducer, that is mounted at water level on the boat. It sounds out sonar waves that are bounced off of underwater objects and then reported back to the fish finder display. Over time transducers can wear out or, if water gets inside them, can completely fry. Before replacing a nonoperable transducer outright, check first to see if it can be repaired.

Things You'll Need

  • Multimeter
  • Wire strippers
  • Soldering iron
  • Solder
  • Screwdriver
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Instructions

    • 1

      Turn on the multimeter and first check the battery the transducer is connected to. Do this by setting the meter the voltage setting to the range that covers 12 volts. Touch the positive and negative test leads on the meter to the battery terminals. The voltage should at least be 12 volts. If not, the battery may need to be charged or replaced instead of the transducer.

    • 2

      Disconnect the transducer cable end from the fish finder LED screen or monitor. Trace the cable to where it is mounted and remove it from its bracket mount.

    • 3

      Check the cable ends to make sure they are not frayed. If they are, strip them back some with a pair of wire strippers. Heat a soldering iron. Twist the loose ends of the cable together by hand. Melt a small bit of solder onto the connections. Plug the transducer in and test it.

    • 4

      Use a screwdriver to remove the small screw holding the transducer together. Inspect the inside of the casing to see if there are any electronic components that appear visibly damaged. Loosen the old solder mounts with the soldering iron and then pull the old component out with needle-nose pliers. Mount the replacement component and solder it into place. Replace the transducer casing and test the transducer.