User manual HUMMINBIRD LCR 100

[. . . ] Note that some polarized glasses can affect your view by causing a rainbow or prism to appear; if so, tilt the unit slightly. ) Though it includes sophisticated electronics, the LCR 100 is tough enough to take the pounding punishment of rough seas or a race across the lake. Completely waterproof - even saltwater-proof - your LCR 100 will provide you with many years of thoroughly reliable operation. USING THE BUILT-IN SIMULATOR The LCR 100 includes a built-in simulator that helps you learn to use your new equipment. The simulator displays a typical underwater scene, and lets you practice with the controls. To activate it, press down and hold the POWER button until a chirping sound begins. [. . . ] To use it, select B ALM; then, press the ON-OFF button to activate the alarm, and the Up or Down arrow key to adjust the depth at which the alarm will sound. When Bottom Alarm is on, you'll hear a continuous chirping sound when the bottom is shallower than you defined. This is very handy for alerting you to shallow water or helping you to maintain position over structure. 3. Enabling Fish Alarm; Factory setting: OFF The Fish Alarm alerts you with a chirping sound whenever the LCR 100 detects fish (or another object not attached to the bottom). The fish alarm is especially helpful in identifying targets near the bottom or structure that might not be apparent unless the zoom or bottom lock mode is selected. 4. To activate it, select Zoom and press ON-OFF: The Zoom view initially begins at the surface; pressing the Up or Down arrow adjusts Zoom depth. The Zoom range depends on the current Depth Range: 7 1/2' in the 15' and 30' Depth Ranges, 15' in the 60' and 120' Depth Ranges, and 30' in the 180' to 600' Depth Ranges. (Metric display: 3m in the 6m and 9m ranges, 5m in the 15m and 30m ranges, and l0m in the 45m to 185m ranges. ) Remember: If Zoom is the last function selected, you can use the arrow buttons to adjust the Zoom depth or ON-OFF to switch Zoom on and off without having to press SELECT first. The word zoom will be shown on the display when the zoom function is enabled. 5. Using Bottom-Lock; Factory setting: OFF Bottom-Lock provides an up-close view like Zoom, except that in this case the zoomed view automatically moves up or down to stay on the bottom. The range of the display is shown when Bottom-Lock is on. This is an ideal feature for finding structure or locating fish near the bottom. Remember: If Bottom-Lock is the last function selected, you can use the ON-OFF button to switch Bottom-Lock on and off without having to press SELECT first. 6. Setting Display Speed; Factory setting: One level below maximum The LCR 100 display is "updated" (advances across the screen) as you move through the water. The speed at which the display is updated depends on the Display Speed setting. To adjust it, select SPEED, and press the Up arrow for a faster setting or the Down arrow for a slower setting. In general, higher Display Speed settings provide faster updates, while slower Display Speeds provide more detailed information. 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. Select RANGE, press ON-OFF, and adjust the Depth Range with the Up or Down arrow key. 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. [. . . ] The transducer is mounted too close to the propeller and is being affected by air bubbles from the prop. Ask the dealer who installed the LCR 100 to move the transducer away from the propeller. This is normal, as the transducer comes out of the water in a hard turn, and will correct itself. Check your battery to see that it's fully charged; the LCR 100 will not operate properly on less than I 1 volts. [. . . ]