LG 27UL550-W User Manual

22
ENGLISH
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).
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.
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.
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.
• Not setting the graphics card to the recommended (optimal) resolution may result in blurred text, a dimmed screen, a truncated display area or
misalignment of the display.
• The setting methods may be different depending on the computer or operating system, and some resolutions may not be available depending on the
performance of the graphics card. If this is the case, contact the manufacturer of the computer or graphics card for assistance.
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.
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.
Some features are disabled.
Are some functions not available when you press the Menu button? • The OSD is locked. Disable OSD Lock in General.

LG 27UL550-W Specifications

General

3D	No
Pixel pitch	0.1554 x 0.1554 mm
Screen shape	Flat
Backlight type	W-LED
Display surface	Matt
Display diagonal	27 \
Display technology	LED
Native aspect ratio	16:9
Maximum refresh rate	60 Hz
sRGB coverage (typical)	98 %
Contrast ratio (typical)	1000:1
Display number of colors	1.073 billion colors
Digital vertical frequency	56 - 61 Hz
Digital horizontal frequency	30 - 135 kHz
Display brightness (typical)	300 cd/m²
Supported graphics resolutions	-
High Dynamic Range (HDR) supported	Yes
sRGB coverage (min)	95 %
DisplayPort version	1.4
VGA (D-Sub) ports quantity	0
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Energy efficiency scale	A to G
Power consumption (off)	0.3 W
Power consumption (standby)	0.5 W
Power consumption (PowerSave)	- W
Panel mounting interface	100 x 100 mm
Package depth	192 mm
Package width	704 mm
Package height	518 mm
Package weight	8600 g
Cables included	DisplayPort, HDMI
Product color	Silver
Market positioning	Gaming
Harmonized System (HS) code	85285210

Weight and Dimensions

Depth (with stand)	230 mm
Height (with stand)	572.2 mm
Weight (with stand)	6000 g
Depth (without stand)	45.8 mm
Width (without stand)	622.6 mm
Height (without stand)	371 mm
Weight (without stand)	4400 g