HP V220 User Guide - Page 20
Support and troubleshooting, Solving common problems, Button lockouts
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3 Support and troubleshooting Solving common problems The following table lists possible problems, the possible cause of each problem, and the recommended solutions. Problem Screen is blank or video is flashing. Image appears blurred, indistinct, or too dark. Check Video Cable is displayed on screen. Input Signal Out of Range is displayed on screen. The monitor is off but it did not seem to enter into a lowpower sleep mode. OSD Lockout is displayed. Power Button Lockout is displayed. Possible Cause Power cord is disconnected. Monitor is turned off. Video cable is improperly connected. System is in sleep mode. Video card is incompatible. Brightness setting is too low. Monitor video cable is disconnected. Video resolution and/or refresh rate are set higher than what the monitor supports. The monitor's power saving control is disabled. The monitor's OSD Lockout function is enabled. The monitor's Power Button Lockout function is enabled. Solution Connect the power cord. Press the front panel power button. NOTE: If pressing the power button has no effect, press and hold the power button for 10 seconds to disable the Power Button Lockout feature. Connect the video cable properly. Refer to Connecting the cables on page 7 for more information. Press any key on the keyboard or move the mouse to inactivate the screen blanking utility. Open the OSD menu and select the Input Control menu. Set Auto-Switch Input to Off and manually select the input. Open the OSD menu and select Brightness to adjust the brightness scale as needed. Connect the appropriate video signal cable between the computer and monitor. Be sure that the computer power is off while connecting the video cable. Change the settings to a supported setting. Refer to Preset display resolutions on page 18. Open the OSD menu and select Power Control, select Auto-Sleep Mode, and then set auto-sleep to On. Press and hold the Menu button on the front panel for 10 seconds to disable the OSD Lockout function. Press and hold the power button on the front panel for 10 seconds to unlock the power button function. Button lockouts Holding down the power button or Menu button for 10 seconds will lock out the functionality of that button. You can restore the functionality by holding the button down again for ten seconds. This functionality is only available when the monitor is powered on, displaying an active signal, and the OSD is not active. 14 Chapter 3 Setting up the monitor