7Getting StartedBacklighting/Simulator ModeTo turn on and adjust the backlighting:1. Press POWER and the Light and Contrast window will appear.2. Press POWER again and the user-defined level of backlighting will activate. You may adjust thislevel by pressing UP or DOWN on the ARROW KEYPAD. If you press POWER one more time, thebacklighting will be at the maximum setting.3. Press ENTER/MARK or QUIT when done.The backlight will now cycle through off, the user-defined, and maximum backlight levels byrepeatedly pressing the POWER key.Each page and the Main Menu of the GPS 152’s system may also feature menu options, which giveyou access to other functions and features that relate to the screen you are viewing. To get a feel forhow the option menus work, put the GPS 152 into simulator mode.To place the GPS 152 in simulator mode:1. From any page, press the MENU key twice. The Main Menu will appear, displaying a tab style listof options and functions.2. Use the ARROW KEYPAD to highlight the ‘Sys’ (System) tab, then press RIGHT then DOWN untilthe field below the word ‘System Mode’ is highlighted and press ENTER/MARK.3. Highlight ‘Simulator’ and press ENTER/MARK. Press ENTER/MARK again to confirm the ‘RunningSimulator’ message that appears at the bottom of the display.Once the simulator has been started, the lower left corner will display an ‘S’ in a box on the mainpages to show “Simulating Navigation” status. Now you’re ready to continue the rest of the simulatedtour. Keep in mind that the GPS 152 does not track satellites in simulator mode, and thismode should never be used for actual navigation. All the waypoint and route planning done insimulator mode will still be retained in memory for future use.Press UP or DOWN on the ARROW KEYPADto move the backlighting slider up for brighter ordown for dimmer backlighting.When the unit is in Simulator mode, an ‘S’ willappear in the lower left corner of the main pagesto indicate the unit is simulating navigation.