User manual RAYMARINE DSM250

[. . . ] DSM250 Digital Sounder Module Owner's Handbook Document number: 81211_1 Date: December 2002 DSM250 Digital Sounder Module iii DSM250 Digital Sounder Module Owner's Handbook December 2002 Intended Use Raymarine DSM250 Digital Sounder Modules provide echo sounder data that can be displayed on Raymarine PLUS Radar, Chartplotter, or Fishfinder display units. DSM250 Digital Sounder Modules are intended for recreational depth finding and fishfinding purposes. SAFETY NOTICES This equipment must be installed and operated in accordance with the instructions contained in this manual. Failure to do so can result in personal injury and/or navigational inaccuracies. Adjustments require specialized service procedures and tools only available to qualified service technicians ­ there are no user serviceable parts or adjustments. [. . . ] The LIGHT soft key toggles lighting ON/OFF. Use the trackpad (up or down) to increase or decrease the setting. You can press and hold the trackpad to change the setting more rapidly. The lighting level is adjusted as you change the setting. Adjust the setting in the same way as for the lighting. Press ENTER to return to the default screen, with the new lighting and contrast levels retained, or press CLEAR to discard the changes and return to the default screen. If lights are left ON when you switch off the display, the next time the display is switched on, the lights will be ON, but at the default setting of 42%. The new contrast level is retained until you reset it, unless you set the control very low or very high; in this case, the contrast will be restored as follows: Contrast set < 30%restored to 30% Contrast set > 70%restored to 70% Brightness and Color Settings (Color Displays) The MULTI key on a color LCD unit provides controls to set up the display colors and brightness. You can choose the background color and the color threshold; color threshold lets you determine which echoes are displayed, by selecting the minimum color strength the sounder uses. Chapter 5: Basic Display Controls 5-3 You can also select the color set, for a bold or soft color palette. The brightness of the screen can be adjusted over a wide range, suitable for viewing in daylight (high brightness level) or at night (low brightness level). The key lighting is automatically adjusted as you alter the screen lighting, so that you can always find the keys. If you set the backlight to a high level, the key lighting is dimmed; if you set the backlight to a low level, the key lighting level is increased. Adjusting the Brightness To change the screen brightness: 1. Press the MULTI key to display the soft key controls: 70% POWER AUTO LO HI COLOR SETTINGS WHT LINE OFF ON D4896-2 LIGHT 2. The LIGHT soft key indicates the brightness level, use the trackpad (up or down) to increase or decrease the setting. You can press and hold the trackpad to change the setting more rapidly. The brightness level is adjusted as you change the setting. Press ENTER to return to the default screen, with the new brightness level. MULTI To set the screen brightness to 100%: Press and hold the MULTI key for one second. The brightness level is retained when you switch off the display. Note: During night-time use, the brightness level may be set very low. When subsequently operated during the day it may not be apparent that the display is on. Press MULTI, and then use the trackpad to increase brightness. [. . . ] If the condition persists, please contact Raymarine Customer Service. How to Contact Raymarine On the Internet Visit the Raymarine World Wide Web site for the latest information on Raymarine electronic equipment and systems at: www. raymarine. com Customer Support Navigate to the Customer Support page for links to: · · · · · Finding Factory Service locations and Authorized Dealers near you Registering your Raymarine products Accessing handbooks in Adobe Acrobat format Downloading RayTech software updates Accessing the Raymarine solution database Clicking the Find Answers link routes you to our solution database. Search questions and answers by product, category, keywords, or phrases. If the answer you are seeking is not available, click the Ask Raymarine tab to submit your own question to our technical support staff, who will reply to you by e-mail. In the US Accessories and Parts Many Raymarine accessory items and parts can be obtained directly from your authorized Raymarine dealer. 7-8 DSM250 Digital Sounder Module However, if you are in need of an item not available from the retailer, please contact Raymarine Technical Services at: 800-539-5539 ext. Technical Service is available Monday through Friday 4:00 AM to 6:00 PM Eastern Time. [. . . ]