User manual BENQ FP557

[. . . ] If you are not sure of the type of power available, consult your dealer or local power company. Never push objects of any kind, or spill liquid of any kind into this product. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltages or other risks. If any above mentioned misuse or other accident (dropping, mis-operations) occurs, contact qualified service personnel for servicing. [. . . ] Connect the power cord at the back of the monitor to an AC power socket. Please make sure that the socket is not blocked or covered, so you can disconnect the unit from AC supply if you need to. Your monitor is equipped with an automatic power supply for a voltage range from 100 to 240 Volt at a frequency of 50 to 60 Hz. Be sure that your local power is within the supported range. If you are unsure, ask your electricity supplier. Signal Power cord English 6 Benq LCD Color Monitor User's Guide Adjusting the Monitor A Look at the Control Panel ikey Exit < > Enter There are 6 keys for user's control including "iKey", "Exit", "Enter", "<" and ">" key and a power swith. The following descriptions are the introduction of these keys & switch. "Power": Turn the power on or off. "iKey" : Adjust vertical position, phase, horizontal position and pixel clock automatically. "Exit" key: Back to main menus, save menu or exist OSD menu without saving. "Enter" key: Enter sub-menus, select items or save items. Left key is the hot key for Contrast adjustment. Right key is the hot key for Brightness adjustment. Hot Key Mode Contrast hot-key 1. Press "<" key to enter the Contrast hot- key mode. Press "<" or ">" key to make adjust ment. The scale can be adjusted from maximum (100) to minimum (0). Press the "Exit" to leave OSD operation. Press ">" key to enter the Brightness hot-key mode. Press "<" or ">" key to make adjustment. The scale can be adjusted from maximum (100) to minimum (0). Press the "Exit" to leave OSD operation. The adjustment can be auto-saved. English 33 Benq LCD Color Monitor User's Guide Main Menu Mode Control Functions Available in Main Menu 1. Luminance Press "<"or ">" key to select this item and press "Enter" to enter sub-menu. There are two items for luminance adjustments. Brightness: adjust the brightness of the display. Contrast: adjust the difference between the light and dark areas. English 34 Benq LCD Color Monitor User's Guide 2. Geometry Press "<"or ">" key to select this item and press "Enter" to enter sub-menu. [. . . ] No image can be seen:  Is the prompt on the display illuminated in green?If the LED is illuminated in green, then press the "Exit" button on the monitor to access the On Screen Display. If the message "Not supported Mode" appears there, read the chapter Installation/Adjustment.  Is the prompt on the display illuminated in orange? [. . . ]