User manual LOWRANCE M56I S-MAP

[. . . ] 988-0152-021 www. lowrance. com M56 S/Map Fish-finding Sonar & Mapping GPS Installation and Operation Instructions Copyright © 2003 Lowrance Electronics, Inc. Lowrance® is a registered trademark of Lowrance Electronics, Inc. Marine-Tex is a trademark of Illinois Tool Works Inc. Lowrance Electronics may find it necessary to change or end our policies, regulations, and special offers at any time. We reserve the right to do so without notice. [. . . ] Press EXIT|EXIT to return to the Sonar Page. Sonar Page & Sonar Chart Display Options The M56 offers four Sonar chart display options. To choose among them, press EXIT to clear any menus, then press PAGES and use the arrow keys to select the desired mode. Full Sonar Chart This is the default mode used when the Sonar is turned on for the first time or when it's reset to the factory defaults. The bottom signal scrolls across the screen from right to left. Depth scales on the right side of the screen aid in determining the depth of targets. The line at the top of the screen represents the surface. The bottom depth and surface temperature (if the unit is equipped with a temperature sensor or a transducer with a temp sensor built in) show at the top left corner of the screen. The FasTrackTM display shows just to the right of the scale. This changes all echoes into short horizontal bars, replicating a flasher sonar. The zoom bar on the far right shows the area that's zoomed when the zoom is in use. (See the Zoom section for more information. ) 62 Full Sonar Chart. The Overlay Data (depth and water temperature) are each set to a different text size. Split Zoom Sonar Chart A split chart shows the underwater world from the surface to the bottom on the right side of the screen. The left side shows an enlarged version of the right side. The zoom range shows at the bottom left corner of the screen. Split Zoom Sonar Chart. Image at left shows the left window zoomed to 2X. The right image shows the left window zoomed to 4X. The depth overlay data is set to the default large text size; the water temperature is set to the medium text size. Digital Data/Chart This mode shows nine digital boxes or windows containing (by default): Water Depth; Water Temp; Speed; Distance to Destination; Bearing; Travel Time; Track; Off Course; and the unit's Voltage. 63 Digital Data/Chart Flasher The Flasher page represents a flasher style sonar. A circular dial shows all returning echoes at a high screen refresh rate. It uses the Grayline feature to show weaker targets as lighter colors. The bottom depth is also shown as a black bar across the outer circle. Surface clutter Fish signal, approximately 13 feet Bottom signal Flasher page. Sonar Simulator This unit has a built-in simulator that lets you run it as if you were on the water. All sonar features and functions are useable. [. . . ] We reserve the right to do so without notice. . . . in Canada: If you're in Canada and you have technical, return or repair questions, please contact the Factory Customer Service Department. Before any product can be returned, you must call customer service to determine if a return is necessary. Many times, customer service can resolve your problem over the phone without sending your product to the factory. To call us, use the following toll-free number: 800-661-3983 905-629-1614 (not toll-free) 8 a. m. [. . . ]