7. Setting Depth Range;
Factory setting: ON (Automatic)
When you turn the LCR 100 on, it finds the bottom,
sets the ideal Depth Range, and automatically adjusts
the Depth Range (to as much as 480'/150m) as the
depth changes. In this "Auto Depth Range" mode, the
bottom is blacked-in for easy-to-understand readings.
If you prefer, you can turn Auto Depth Range off.
Select RANGE, press ON-OFF, and adjust the Depth
Range with the Up or Down arrow key. You can set
Depth Range up to 600'/185m.
In this "Manual Depth Range" mode, the bottom is not
blacked in. This lets you see a "second return," which
is preferred by some fishermen because the width of
the second echo can indicate bottom hardness.
MAINTENANCE AND TROUBLESHOOTING
Your Humminbird LCR 100 is designed to give you years of trouble-free operation with virtually
no maintenance. Follow the simple procedures below to ensure that your LCR 100 continues to
deliver top performance:
If the unit comes in contact with spray, simply wipe the affected surfaces with a cloth dampened
in fresh water.
When cleaning the LCD screen, use a chamois and non-abrasive cleaner such as Windex ®. Do
not wipe while dirt or grit is on the screen. Be careful to avoid scratching the screen.
The transducer face may become dirty from storage or contact with marina environment oil. Oil
will cause the face to lose the water contact it needs to maintain efficient operation. Simply clean
the face with liquid detergent.
If your boat is out of the water for a long time, it may take a while for the transducer to become
thoroughly "wetted" when returned to the water. Also, the turbulence of re-entry may cause air
bubbles to form on the transducer face. The bubbles will quickly disappear, or can be removed by
rubbing the transducer with the fingers while the transducer is in the water.
Never leave the LCR 100 in a closed car or trunk, especially in extreme temperatures.
Do not attempt to repair the LCR 100 yourself. Repairs should be performed only by authorized
Humminbird technicians.
Many requests for repair received by Humminbird involve units that do not actually need repair. If
you have trouble with your LCR 100, consult the following troubleshooting guide before
contacting Humminbird.
1. Nothing happens when I turn the unit on.
Summary of Contents for LCR 100
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