17Device SettingsDevce settngs are the HT580’s basc settngs as shown n menu below.BacklightThe HT580’s backlght can be turned on automatcally after a key s pressed, and t wllautomatically turn off after predefined period time if no keys are pressed. The time-outperod wll be reset f any keys are pressed. In the HT580, the tme-out perod can be set to10, 20, 30 or 60 seconds. The backlight can also be set to always off, or always on.Use the MENU button to adjust settng. Below are the optons you may choose.ITEM DESCRIPTIONON 10 SECS The backlght turns on after pressng a key, and turns offautomatcally after 10 secondsON 20 SECS The backlght turns on after pressng a key, and turns offautomatcally after 20 secondsON 30 SECS The backlght turns on after pressng a key, and turns offautomatcally after 30 secondsON 60 SECS The backlght turns on after pressng a key, and turns offautomatically after 60 secondsAlways Backlght always stays onOff Backlght always stays off1. BACKLIGHT2. SCANNER3. AUTORUN 4. MEM5. BUZZER 6. KEYChapter 2 Using the Hardware