Brand:
LG
Category: Desktop Computer
Document Type: Manual
Language: EN
Manual for 19EN33S
Uploaded: Nov. 21, 2025, 7:07 p.m.
Warranty Information
LG Electronics Inc. is the responsible party for the USA FCC Regulatory information.
The manual covers assembling and preparing the monitor, including unpacking, attaching the stand, and mounting on a table or wall. It also details how to use the monitor set, connect it to a PC via D-SUB, and customize settings such as picture, color, display, and others. Functions like MY KEY Setting, FUNC. Setting, SUPER ENERGY SAVING, DUAL DISPLAY, and DUAL WEB are explained. Troubleshooting common issues and specifications for different models (19EN33S, 20EN33S, 22EN33S, 23EN33S) are also provided. Finally, it includes information on proper posture for using the monitor and a declaration of conformity.
Troubleshooting and error codes
| Troubleshooting Topic | Problem Description | Solution |
|---|---|---|
| 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 power indicator Red? | Adjust the brightness and the contrast. | |
| Is the power indicator flickering? | If the display is in power saving mode, try moving the mouse or pressing any key on the keyboard to bring up the screen. Try to turn on the PC. | |
| Do you see an "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? | When the monitor is on "No-Signal" in 5 minutes, the monitor goes to DPM mode. | |
| Do you see an "OSD LOCKED" message on the screen? | Do you see "OSD 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 for several seconds: the message "OSD UNLOCKED" will appear. |
| Display image is incorrect | Display Position is incorrect. | Press the AUTO button to automatically adjust your display image to the ideal setting. |
| On the screen background, vertical bars or stripes are visible. | Press the AUTO button to automatically adjust your display image to the ideal setting. | |
| Any horizontal noise appearing in any image or characters are not clearly portrayed. | Press the AUTO button to automatically adjust your display image to the ideal setting. Check Control Panel Display Settings and adjust the display to the recommended resolution or adjust the display image to the ideal setting. Set the color setting higher than 24 bits (true color). | |
| The screen color is mono or abnormal. | Check if the signal cable is properly connected and use a screwdriver to fasten if necessary. Make sure the video card is properly inserted in the slot. Set the color setting higher than 24 bits (true color) at Control Panel Settings. | |
| The screen blinks. | Check if the screen is set to interlace mode and if yes, change it to the recommend resolution. | |
| Do you see an "Unrecognized monitor, Plug&Play (VESA DDC) monitor found" message? | Have you installed the display driver? | Be sure to install the display driver from the display driver CD (or diskette) that comes with your display. Or, you can also download the driver from our web site: http://www.lg.com. Make sure to check if the video card supports Plug&Play function. |