LEARNING TO USE YOUR LCR:
Step 1
After making sure that you are in water deeper than four feet, turn your LCR on by pushing the “On”
button. The LCR’s computer will automatically adjust the sensitivity and depth scale so that in about
one second you will see images appear on the right side of the display and moving to the left. The
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.
TROUBLE SHOOTING:
In very shallow water, the bottom reading might have gaps or the scale might change to the 0-120 foot
scale. This is normal in about three feet or less. The automatic mode cannot “lock” onto the bottom in
very shallow water.
Step 2
Still moving at a slow speed, begin going toward deeper water. You will see that the LCR will display
changes as small as 6 inches on the 0-15 foot scale. Continue to move into deeper water until the
bottom return goes off the display. The LCR will automatically change to the next deeper depth scale
(indicated at bottom of the display).
Step 3
Press the depth set button once to change to the next lowest scale. If the bottom is deeper than this
scale, the computer will automatically change back to the proper scale. By pressing the depth set
button three or four times you will see that the depth scale will change down to the 0 to 15 foot scale
and then to the 0 to 120 foot scale.
Step 4
Steps 1, 2, and 3 have verified that your LCR is working properly. You are now ready to increase boat
speed to test the transducer installation. As you increase the boat speed the LCR should give a
continuous bottom return. With a proper transducer installation your LCR will perform well at speeds
over 75 mph.
TROUBLE SHOOTING:
