Acer PD525 PD525 User's Guide - Page 26

User Controls English ... 26 Management (Computer / Video Mode) Source Lock When source lock is turned off, the projector will search for other signals if the current input signal is lost. When source lock is turned on, it will "Lock" the current source channel before you press "Source" button on remote control for next channel. Lamp Hour Elapse Displays the lamp's elapsed operating time (in hours). Lamp Hour Reset Press the button after choosing "Yes "to turn the lamp hour counter to 0 hours. Lamp Reminding Choose this function to show or to hide warning message when the changing lamp message is displayed. The message will show up 30 hours before end of life. OSD Transparency Adjusts the OSD's transparency. Start-up Screen Use this function to slect your desired start-up screen. If you change the setting from one to another, when you exit the OSD menu, the new setting will take effect. 4Acer : The default start-up screen of Acer projector. 4User : The user customized start-up scren, which is down loaded from PC to projector via the USB cable and My Start-up Screen utility (refer to the description of below section).