User manual HUMMINBIRD LCR 2000

[. . . ] Before attempting to install or operate your Humminbird LCR, it is recommended that you read the operations manual thoroughly. The LCR is totally new concept in sonar and has a number of special features not found on any other recorder. To completely understand all the features of the LCR, we suggest you follow the instructions set forth in this manual. If, after reading the instructions, there is something you do not completely understand about the operations of your unit, we recommend you contact our Customer Service Department- CALL 334-687-0503. [. . . ] If a fuse panel is available, we recommend wiring the power cable into the fuse panel. Position the connector so the letter P or T can be read and the 90 degree bend is pointed downward. Turn the positive locking ring as far as it will go clockwise until you feel it lock. Note: For easy access to the connectors, simply loosen the mounting knobs and tilt your LCR forward. The connectors are now in full view and easy to plug or unplug. OPERATIONAL INSTRUCTIONS FOR LCR 1000 AUTOMATIC MICROPROCESSOR CONTROL Thanks to the use of microcomputers, your LCR 1000 is fully automatic It is the simplest depth sounder ever created, making it easy to learn and interpret readings. When activated the LCR 1000 will find the bottom, adjust for the proper amount of sensitivity and advance to the proper depth range automatically to display bottom, fish and structure. It is suggested that you familiarize yourself with the four control buttons before attempting to operate your LCR 1000. Since the operation is automatic, the unit will find the bottom by varying the sensitivity and selecting the proper depth range for a satisfactory return. Also, the display below the bottom is blackened out to make the display easier automatically eliminated by the Sensitivity Time Control (STC). Electrical interference is screened out to an automatic digital noise reject feature. The uppermost readout of the display is the sensitivity bar. (See Figure 11) You will notice this bar increasing or decreasing based upon the amount of sensitivity being used. A harder bottom will require less sensitivity thus a narrower series of sensitivity bars displayed. A softer bottom displays an increased number of bars due to the increased sensitivity needed to give an adequate return. To turn the unit off, simply depress the Power "Off" button. Light: Depress the light "On/Off" switch to activate the display light for night or low light conditions. The light is turned off by again depressing the "On/Off" switch. Depth: Since the LCR 1000 is fully automatic, the proper depth range is found as soon as the unit is turned on. As you move into deeper water and the bottom goes off screen, the next deeper depth range will automatically be activated. In order to return to a shallower depth range, you must manually depress the depth "set" button. Each time this button is depressed, the range is decreased by one setting. Thus, this control will work in the opposite direction from the automatic depth advance. Note: Should you attempt to change to a depth scale which is less than the actual bottom depth, the computer will automatically change the depth scale back to the proper position. [. . . ] 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. 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. 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. [. . . ]