small gap in the zero line allows you to see movement on the display even when the button is not
changing.
TROUBLE SHOOTING:
If nothing happens when the “On” button is pushed, check your electrical connections and fuse. Also
check that the red wire on the power cable is connected to the positive battery terminal and that the
black wire is connected to the negative battery terminal. If these wires are reversed it will not damage
the LCR.
It is normal if when reversing the boat, the bottom return is lost, since air from the prop is being forced
under the transducer. Remember the transducer cannot transmit through air.
TROUBLE SHOOTING:
If the display comes on when the “On” button is pushed but no bottom information is seen, check that
the transducer connector is securely locked to the rear of the LCR. Also insure that the transducer is
completely submerged. A transducer cannot work properly in air or through air bubbles in the water.