LG 27BK67U-B 27" 16:9 4K UHD FreeSync IPS Monitor - Manual (Page 23)

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TroubLESHooTING
Nothing is displayed on the screen.
Is the monitor's power cord plugged in? • Check if the power cord is correctly plugged into the power outlet.
Is the power LED on? • Check the power cable connection and press the power button.
Is the power on and the power LED displaying white? • Check that the connected input is enabled (settings > Input > Input list).
Is the OUT OF ranGE message being displayed? • This occurs when signals transferred from the PC (graphics card) are out of the horizontal or vertical frequency range of the monitor. Please see the Product
specification section of this manual to set the appropriate frequency.
Is the no signal message being displayed? • This is displayed when the signal cable between the PC and the monitor is missing or disconnected. Check the cable and reconnect it.
The oSD lock message is being displayed.
are some functions not available when you press the
Menu button? • The OsD is locked. Go to settings > General and set OsD Lock to Off.
The screen retains an image.
Does image sticking occur even when the monitor is
turned off? • Displaying a still image for a prolonged time may cause damage to the screen, resulting in the retention of the image.
• To extend the lifetime of the monitor, use a screensaver.
Screen display is unstable and shaky / Images displayed on the monitor leave shadow trails.
Did you select the appropriate resolution? • If the selected resolution is HDMI 1080i 60/50 Hz (interlaced), the screen may be flickering. Change the resolution to 1080P or the recommended resolution.
The display color is abnormal.
Does the display appear discolored (16 colors)? • set the color to 24 bit (true color) or higher. In windows, go to Control Panel > Display > settings > Color Quality.
Does the display color appear unstable or monochrome? • Check if the signal cable is connected properly. reconnect the cable or reinsert the PC's graphics card.
are there spots on the screen? • when using the monitor, pixilated spots (red, green, blue, white, or black) may appear on the screen. This is normal for an LCD screen. It is not an error, nor is it related
to the monitor's performance.