Instruction/ maintenance manual of the product LCR120 Humminbird
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INSTALLATION PREPARATION PARTS SUPPLIED PARTS SUPPLIED Before installing your new Humminbird fishsinder, please ensure the following parts are included in the box: • Fishfinder • Transducer with 2.
INSTALLATION PREPARATION INSTALLATION OVERVIEW Determining How to Mount the Transducer Your Humminb ird fishfinder includes a standard transducer. This transducer can be mounted on the transom of the boat or bonded to the inside of a fiberglass hull boat.
INSTALLATION PREPARATION ALTERNATE M OUNTING METHODS ALTERNATE TRANSDUCERS AND MOUNTING METHODS Your Humminbird fishfinder comes with everything necessary for installation and operation on most boats. However, there are several situations which may require a different type of transducer.
INSTALLATION PREPARATION TRANSDUCER EXCHANGE TRANSDUCER EXCHANGE Other transducers are available as replacements for the standard transducer. You may exchange your new and unassembled transducer for another type by returning i t to the address listed in Customer Support.
INSTALLAT ION TRANSOM INSTALLATION Do not begin this transducer installation until you read the Installation Preparation in the Operation Guide. This chapter contains information critical to the correct installation of your transducer. Due to the wide variety of b oat hulls, only general instructions are presented in the installation guide.
INSTALLATION TRANSOM INSTALLATION • If the propeller(s) is (are) forward of the transom, it may be impossible to find an area clear from turbulence, and a different mounting technique or transducer type should be considered. Step Two - Drill the Mounting Holes 1.
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INSTALLATION TRANSOM INSTALLATION Step Four - Mount the Transducer to the Transom 1. Apply silicone sealant to the mounting holes drilled into the transom.
mounting bracket. Drill this hole and install the screw after final testing and adjustments have been completed..
INSTALLATION TRANSOM INSTALLATION Step Six - Route the Cable There are several ways to route the transducer c able to the to the area where the control head will be installed. The most common procedure routes the cable through the transom into the boat.
INSTALLATION INSIDE THE HULL INSTALLATION INSIDE THE HULL INSTALLATION Inside the hull installation requires the mount system and control head be installed and operational. See Installing the Control Head for instruction on installing the unit. Inside the hull mountin g generally produces good results in single thickness fiberglass - hulled boats.
The transducer cannot transmit through air. The water purges any air from between the transducer and the hull and fills any voids in the coarse fiberglass surface.
INSTALLATION INSIDE THE HULL INSTALLATION 3. Power up the Control Head. 4. Run the boat at various speeds and water depths while observing the screen on the Control Head. If the unit functions well at low speeds but b egins to skip or miss the bottom at higher speeds, the transducer needs to be moved.
INSTALLATION CONTROL HEAD INSTALLATION CONTROL HEAD INSTALLATION Step One - Determine Where to Mount Begin the installation by determining where to mount the control head.
fuse in the connection. If you must wire the control head directly to a battery, be sure to install an inline fuse holder.
INSTALLATION CONTROL HEAD INSTALLATION and one amp fuse (not inc luded) for the protection of the unit (Figure 21). Humminbird is not responsible for over voltage or over current failures. In order to minimize the potential for interference with other marine electronics a separate power source (such as a second batter y) may be necessary.
Optional: If the ca bles pass outside the mounting bracket, install the hole cover over the hole and fasten in place using the two #8 x 7/8” (22mm) wood screws (Figure 24).
INSTALLATION CONTROL HEAD INSTALLATION Step Five - Assembling the Connector Holder 1. Insert the cabl e connectors into the connector holder. The cable connectors are labeled, and there are corresponding labels on the connector holder (Figure 26).
INSTALLATION TEST THE INSTALLATION TEST THE INSTALLATION Testing should be performed with the boat in the water, however you can initially confirm basic operation with the boat trailered. Press POWER once to turn the unit on. There will be an audible chirp when any button is pressed to confirm the button press.
Mounting the LCR 120 Before mounting the LCR 120, gather the parts you need: LCR 120, mounting hardware j kit power cable, and sensor cable. If the sensor cable is not long enough for your installation, see “Accessories” earlier in this manual for infor mation on the EC - 6 10’ extension cable Next, consider where to mount the LCR 120.
sensitivity level for conditions. Momentarily, you’ll see the reading start to “March” across the screen from right to left. Increase your boat speed to ensure that you get a continuous bottom reading as the boat moves. Your LCR 120 and its sensor are designed to operate at up to 75 mph, so feel free to test them at very high speeds.
The unit must be turned off before you start the simulator. To activate it, press down and hold the POWER button until a chirping sound beg ins. Release the button, and the built - in simulator begins displaying the typical LCR 120 a typical LCR 120 reading.
NOTE: The last function you select remains “active” - that is, you can adjust it without having to press SELECT again. For example, if the bottom alarm was the last function used, you can readjust the alarm by pressing one of the arrow buttons.
Units 2. Selecting Units; Factory Setting: MPH/SM The LCR 120 has no provision for speed and water temp erature accessories. Because of this, the UNITS menu has no effect on the operation of the unit. Sensitivity 3. Selecting Sensitivity; Factory Setting: +0 The LCR 120 automatically adjusts to the proper amount of sensitivity for conditions (i.
Bottom Alarm 4. Enabling Bottom Alarm; Factory Setting: Off The Bottom Alarm lets you specify the minimum depth you want to maintain. To use it, select BOTTOM ALARM; then press the ON - OFF button to activate the alarm, and the Up or Down arrow button to adjust the depth at which the alarm depth when this function is on.
part of the display. By pressi ng either arrow button, the word “LARGE” appears on the display and the alarm will only sound when a large target is detected. A single fish symbol is shown on the bottom of the display to represent that large fish only is selected.
Bottom Lock 7. Using Bottom Lock Factory Setting: Off Bottom - Lock provides an up - close view like Zoom Range, except that in this case the zoomed view automatically moves up or down to stay on the bottom. To use this feature, select BOTTOM LOCK and press ON - OFF.
Display Speed 8. Setting Display Speed; Fa ctory Setting: One Level Below Maximum The LCR 120 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.
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 DEPTH RANGE, press ON - OFF, and adjust the Depth Range with the Up or Down arrow button.
An important point after buying a device Humminbird LCR120 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Humminbird LCR120 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Humminbird LCR120 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Humminbird LCR120 you will learn all the available features of the product, as well as information on its operation. The information that you get Humminbird LCR120 will certainly help you make a decision on the purchase.
If you already are a holder of Humminbird LCR120, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Humminbird LCR120.
However, one of the most important roles played by the user manual is to help in solving problems with Humminbird LCR120. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Humminbird LCR120 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
