LG L1510S User Guide - Page 11
Troubleshooting, No image appears, Do you see a \ - service manual
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Troubleshooting Check the following before calling for service. No image appears Is the power cord of the display connected? Check and see if the power cord is connected properly to the power outlet. Is the power indicator light on? Press the Power button. Is the power on and the Adjust the brightness and the contrast. power indicator green? Is the power indicator amber? If the display is in power saving mode, try moving the mouse or pressing any key on the keyboard to bring up the screen. Make sure if the power is on. Try to turn on the PC. Do you see an "INPUT SIGNAL OUT OF RANGE" message on the screen? This message appears when the signal from the PC (video card) is out of horizontal or vertical frequency range of the display. See the 'Specifications' section of this manual and configure your display again. Do you see a "NO SIGNAL "message on the screen? This message appears when the signal cable between your PC and your display is not connected. Check the signal cable and try again. Do you see a "CONTROLS LOCKED" message on the screen? Do you see "CONTROLS LOCKED" when you push MENU button? You can secure the current control settings, so that they cannot be inadvertently changed. You can unlock the OSD controls at any time by pushing the MENU button and button for 3 seconds: the message "CONTROLS UNLOCKED" will appear. A11