X-25B X-25B X-25B X-25B X-25B INSTALLATION AND OPERATION INSTRUCTIONS...
UPS RETURN SERVICE - USA ONLY ... 26 MISSING PARTS ... 28 HOW TO OBTAIN SERVICE - INTERNATIONAL ONLY ... 29 Copyright © 1995 Lowrance Electronics, Inc. All features and specifications in this manual are subject to change All screens in this manual are simulated.
All you have to do is press the on key. However, if you wish to fine tune the unit, simply press the menu key. The X-25B has powerful features available through easy-to-use menus.
INSTALLATION - Bracket You can install the X-25B on the top of a dash or from an overhead with the supplied bracket. It can also be installed in the dash with an optional IDA- 3 or IDA-4 mounting kit. If you use the supplied bracket, you may be interested in the optional GBSA-1 swivel bracket kit.
POWER CONNECTIONS The X-25B works from a 12 volt DC system only. For the best results, run the power cable directly to the boat’s battery. Keep the power cable away from other boat wiring, especially the engine’s wires. This will give the best isolation from electrical noise.
This key turns the unit off. MENU The X-25B has many features that are accessed with this key. To see the first menu, press the MENU key. To see the other menus, press the MENU key repeatedly.
0 to 60 feet and the bottom depth is 34.4 feet. NOTE: Turning the X-25B off erases all user settings and it returns to the system defaults. For example, if you turn the lights on, then turn the unit off, the next time you turn the unit on, the lights will be off, since the default setting for the lights is off.
RANGE - Upper and Lower Limits The X-25B lets you change the upper and lower range limits when it's in the manual mode. This lets you "zoom" in on segments of the water as small as 10 feet.
21 FOOT UPPER LIMIT seconds and the menu will scroll off the screen’s left side. Pressing the ON/ CLR key also clears it. To change the lower limit, again make certain the unit is in the manual mode. Press the MENU key until the "LOWER LIMIT" menu appears. Now press the down arrow key to increase the lower limit or the up arrow key to increase it.
5, 10, 20, 30, 50, 100, and 150 meters. Zoom - Manual Operation To operate the zoom feature when the X-25B is in the manual mode, first press the menu key. Then press the down arrow key in the RANGE/ZOOM menu to place the X-25B in the zoom mode.
The X-25B adjusts the sensitivity level to keep a solid bottom signal on the screen. It adds a little extra when it’s in the automatic mode. This gives it the capability to show fish and other detail.
The level chosen by the X-25B when it’s first turned on is usually adequate for most conditions. Experiment with your unit to find the Grayline setting that’s best.
To turn it off, repeat the above steps, but press the down arrow key instead. The Fish ID feature can’t be used when the X-25B is in the manual mode. If you turn the automatic feature off, the Fish ID feature will automatically be turned off, also.
Chart speed is set to maxi- mum when the X-25B is first turned on. To decrease it, press the down arrow key. Press the up arrow key to increase the speed again.
Digital This is the digital only screen. It shows the digital depth display at the top of the screen in very large numbers. The shallow and deep alarm settings are displayed beneath the digital depth. No chart shows on this screen. ALARMS FISH ALARM The Fish Alarm sounds a tone when a fish...
The menu will clear automatically after a few seconds. FEET/METER The X-25B can show the depth in feet or meters When the unit is in the metric mode, all depth readings, ranges, zooms, and alarm settings are in meters. When a unit is in the feet mode, all of the above settings are in feet.
ON/CLEAR key to clear the screen. ASP (Advanced Signal Processing) ASP is a program embedded in the X-25B’s computer that is specifically designed to eliminate noise. It continually monitors the signals from the receiver, determines which echoes are noise and rejects them. This allows true target echoes to display on the screen with a minimum of clutter.
SIMULATOR The X-25B has a simulator built into it that can show a simulated bottom signal with fish. All features of the X-25B work normally when the simulator is in use. You can change the range, zoom, and use the alarms as desired.
For example, if the cone passes over a fish in shallow water, the signal displayed on the X-25B may not arch at all. This is due to the narrow cone diameter and the resolution limitations of the display.
For example, from 45 to 60 feet. The smaller the segment, the better the screen resolution will be. The easiest way to do this on the X-25B is with the Zoom feature. This feature expands the echoes, making it easier to see detail. For the best results, turn the sensitivity up as high as possible without getting too much noise on the screen.
The X-25B can detect this invisible layer in the water, but the sensitivity will probably have to be turned up to see it. TROUBLESHOOTING If your unit is not working, or if you need technical help, please use the following troubleshooting section before contacting the factory customer service department.
1. The transducer may be in turbulent water. It must be mounted in a smooth flow of water in order for the sonar to work at all boat speeds. Air bubbles in the water disrupt the sonar signals, interfering with its ability to find the bottom or other targets.
With the boat at rest in the water, the first thing you should do is turn all electrical equipment on the boat off. Make certain the engine is off, also. Turn your X-25B on, then turn off ASP (Advanced Signal Processing). There should be a steady bottom signal on the display. Now turn on each piece of electrical equipment on the boat and view the effect on the sonar’s display.
Make certain to use the in-line fuse supplied with the unit when wiring the power cable to the battery! When no noise appears on the sonar unit after all of the above tests, then the noise source is probably cavitation. Many novices or persons with limited experience make hasty sonar installations which function perfectly in shallow water, or when the boat is at rest.
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If your unit fails and the failure is not covered by the original warranty, Lowrance has a flat-rate repair policy that covers your unit and accessories packed with the unit at the factory. There is a 180-day warranty on all non-warranty repairs from the factory, which is similar to the original warranty, but is for 180 days rather than one year.