User manual HUMMINBIRD LCR 40-ID

[. . . ] TABLE OF CONTENTS INSTALLATION PREPARATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts Supplied. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Also, in the automatic mode, the unit will black out the display beneath the bottom line. Manual Mode- There are two ways of putting the LCR in the manual mode: (1) depress the Auto "On/Off" button or (2) depress either sensitivity decrease (-) or increase (+) button You will notice that the word Auto in the lower left corner of the display has gone off. The operator can control the amount of sensitivity by depressing the (+) or (-) button. When the (+) or (-) button is pressed once the sensitivity setting will change by one division. If the (+) or (-) button is held down the setting will move up or down as long as the button is held down. When the maximum or minimum setting is achieved, the unit will make a "Chirping" sound indicating a limit has been reached. To once again activate the automatic mode, depress the auto on/off switch. The ID feature is on. USING THE LCR OPERATIONAL INSTRUCTIONS Also, in the manual mode everything below the bottom is no longer blacked out, therefore a second return or double echo can be displayed if desired. Also, the hardness of the bottom can be determined by the thickness of the bottom return. For example, a hard or rock bottom will give a wider bottom return as compared to a soft or muddy bottom. You should also note that it's possible to have the sensitivity set too high such that reflection off of suspended matter or air bubbles will begin to blackout the display. Zoom and Bottom Lock: You will find the Zoom feature of the LCR to be a very valuable tool. Each time one of these buttons is depressed the zoom region will move one division If the button is held down the region will continue to move as long as the button is held down. The zoom region is indicated by the wide group of bars at the right side of the display. On the LCR40-ID the region size may be selected at 15 feet, 30 feet or 60 feet by pressing the Zoom Size button. What Zoom Does The zoom feature on the LCR will allow you to look at underwater readings in very fine detail, and with the LCR's Total Screen Update you have the capability to zoom in on bottom, fish and structure, even after you have gone over the area. How To Use Zoom First position the Zoom Region (See Figure 17) next to the area that you want to expand by pressing the Range up or down button. You will notice that the USING THE LCR OPERATIONAL INSTRUCTIONS word Zoom appears in the lower part of the display, indicating that the Zoom is on. You will also notice that the entire screen has been changed to show an expanded view of the area from the top of the Zoom Range to the bottom of the Zoom Range. The LCR'S Total Screen Update feature allows you to zoom in on an area even after you have passed over it. Figure 17 shows two screens, one with Zoom off and one after turning Zoom on. The zoom may be activated at any time (during normal transmitting and receiving or stop action), but while learning to use the Zoom feature you might find it easiest to first press the Stop/Resume button to freeze the display. Now you can position the Zoom Range, activate the Zoom, and study the display. [. . . ] If engine noise is causing the interference, the problem will intensify at higher RPMs. Increase the engine speed with the boat stationary to isolate this cause. If the transducer is mounted too close to the propeller, the turbulence generated can interfere with the sonar signal. Ensure that the transducer is mounted at least 15" (38cm) from the prop. MAINTENANCE AND WARRANTY WARRANTY HUMMINBIRD ONE YEAR FULL WARRANTY First year repairs (from original date of purchase) on your Humminbird fishfinder are absolutely free. [. . . ]