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LG 27MP40W - User Manual

LG 27MP40W
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* LG LED Monitor applies LCD screen with LED backlights.
Please read this manual carefully before operating your set and
retain it for future reference.
OWNER’S MANUAL
LED LCD MONITOR
(LED Monitor*)
www.lg.com
Copyright © 2022 LG Electronics Inc. All Rights Reserved.
22MP400
24MP400
27MP400
24MP40B
24MP44B
22MP410
22MP41W
27MP40W
27MP41D
24MP40A
27MP40A
22BP410
22MP410P
22MP400P
24MP400P
27MP400P

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Questions and Answers

  • J
    jeffrey39Aug 14, 2025
    How to fix LG 27MP40W Monitor when no image appears?
    • P
      pamela08Aug 14, 2025
      If no image appears on your LG Monitor, first, ensure the power cord is correctly connected to the power outlet. Also, check the signal cable between your PC and the monitor to make sure it's properly connected. If the signal from the PC is out of the display's frequency range, consult the 'Specifications' section of the manual to reconfigure your display. You can unlock the OSD controls by entering the OSD lock menu and changing items to off. Verify the frequency or resolution settings in Control Panel - Display - Settings and readjust the video card to the recommended resolution, if necessary. Selecting the recommended resolution is crucial; otherwise, the screen may appear blurred, dimmed, truncated, or biased. If problems persist, consult the computer or video card manufacturer.
  • A
    Adriana CareyAug 17, 2025
    What to do if no image appears on my LG 27MP40W?
    • V
      Vanessa BlairAug 18, 2025
      First, ensure the power cord is correctly connected to the power outlet. If the monitor displays 'NO SIGNAL' after being turned on, check the signal cable between your PC and the monitor to make sure it is properly connected. Also, this issue might occur if the signal from the PC is out of the horizontal or vertical frequency range of the display. Refer to the 'Specifications' section to configure your display settings. Finally, you can unlock the OSD controls by accessing the OSD lock menu and setting the items to 'off'.
  • A
    Anita GriffinAug 21, 2025
    How to fix an LG 27MP40W Monitor when no image appears?
    • A
      Albert KellyAug 21, 2025
      First, ensure the power cord is correctly connected to the power outlet. If that's not the issue, check the signal cable between your PC and the monitor to make sure it's properly connected. If the signal from the PC is out of the display's frequency range, consult the 'Specifications' section of the manual and configure your display. Also, you can unlock the OSD controls by going to the OSD lock menu and setting the items to 'off'.
  • M
    Melissa MartinezAug 25, 2025
    Why does my LG 27MP40W show 'No image appears'?
    • M
      Maureen MartinAug 26, 2025
      The 'No image appears' message on your LG Monitor might be due to a few reasons. It could be that the power cord isn't properly connected to the outlet. Another reason might be a missing or disconnected signal cable between the PC and the monitor; in this case, check the cable and reconnect it. The signal from your PC might be out of the horizontal or vertical frequency range of the display. You can unlock the OSD controls at any time by entering the OSD lock menu and changing items to off.
  • C
    Crystal PriceAug 29, 2025
    Why does my LG Monitor display 'No Image'?
    • K
      Katherine MorrisAug 29, 2025
      There are several reasons why your LG Monitor might not be displaying an image: * Ensure the power cord is properly connected to the power outlet. * The signal cable between your PC and the monitor may be missing or disconnected; check the cable and reconnect it. * The signal from the PC (video card) might be out of the horizontal or vertical frequency range of the display. Refer to the 'Specifications' section of this manual and configure your display again. * The OSD controls may be locked. You can unlock them by entering the OSD lock menu and changing items to 'off'.
  • E
    Eduardo HensleySep 1, 2025
    What to do if display image is incorrect on LG 27MP40W?
    • J
      Jonathan CooleySep 2, 2025
      If the display image on your LG Monitor is incorrect, ensure the signal cable is properly connected, tightening it with a screwdriver if needed. Also, make sure the video card is correctly inserted in its slot. Set the color setting higher than 24 bits (true color) via Control Panel - Settings. If the screen is set to interlace mode, change it to the recommended resolution. It's recommended to install the display driver from the LG website. Verify that your video card supports Plug&Play. If the selected resolution is HDMI 1080i 60/50 Hz, change it to the recommended resolution of 1080P.
  • T
    Tamara BakerSep 5, 2025
    Why is the display image incorrect on my LG 27MP40W?
    • U
      ubaileySep 5, 2025
      An incorrect display image on your LG Monitor can stem from several factors. Start by checking the signal cable to ensure it's properly connected, tightening it with a screwdriver if necessary. Also, verify that the video card is correctly inserted in its slot. In your computer's Control Panel settings, ensure the color setting is set higher than 24 bits (true color). Check if the screen is set to interlace mode, and if so, change it to the recommended resolution. Make sure to check if the video card supports Plug&Play function.
  • V
    vdavilaSep 8, 2025
    What to do if the LG 27MP40W display image is incorrect?
    • C
      Corey OwensSep 8, 2025
      If your LG Monitor's display image is incorrect, start by checking the signal cable for a secure connection, tightening it with a screwdriver if needed. Also, ensure your video card is properly inserted in its slot. Then, set the color setting higher than 24 bits (true color) via Control Panel settings. If the screen is in interlace mode, switch to the recommended resolution. Change the resolution to the recommended resolution 1080P.

Summary

ASSEMBLE AND PREPARE MONITOR

Safety and Component Guidelines

Safety precautions for using genuine components and handling the monitor.

Software and Driver Information

Details on downloading and installing the latest drivers and software.

MONITOR DESCRIPTION AND HANDLING

Moving and Lifting Safely

Instructions to prevent damage when moving or lifting the monitor.

Joystick Button Operation

How to control monitor functions using the joystick button.

Screen Handling Precautions

Warning against touching the monitor screen to prevent damage.

INSTALLING MONITOR ON A TABLE

Adjusting Screen Viewing Angle

How to adjust the screen angle for comfortable viewing.

Installation Safety Warnings

Safety precautions regarding power cords and grounding during installation.

SECURITY AND WALL MOUNTING

Kensington Lock Installation

Information on using the Kensington security system.

Wall Mount Plate Setup

Information on wall mount plate specifications and installation.

Wall Mounting Guidelines

WALL MOUNT INSTALLATION DETAILS

Wall Mounting Safety Precautions

Safety warnings for wall mounting, including electric shock and falling hazards.

USING THE MONITOR AND CONNECTIONS

Monitor Screen Usage Precautions

Precautions against screen pressing and image retention.

Connecting to a PC

Information on connecting the monitor to a PC via D-SUB and HDMI.

CONNECTING AV DEVICES

HDMI Connection for AV Devices

Details on digital video and audio connection for AV devices via HDMI.

USER SETTINGS AND MENU NAVIGATION

Activating the Main Menu

Step-by-step guide to activate and navigate the main menu using the joystick.

MAIN MENU FEATURES

MENU SETTINGS EXPLANATION

CUSTOMIZING DISPLAY SETTINGS

Quick Settings Adjustments

Input and Aspect Ratio Settings

PICTURE MODE ADJUSTMENTS

Picture Mode Options

PICTURE ADJUSTMENT OPTIONS

GAME ADJUSTMENT FEATURES

Response Time Settings

FreeSync and Black Stabilizer

Crosshair for Gaming

COLOR AND CONFIGURATION SETTINGS

GENERAL MONITOR SETTINGS

Language and Energy Saving

Automatic Standby and OSD Lock

TROUBLESHOOTING COMMON ISSUES

No Image or Signal Issues

Steps to resolve issues where no image is displayed.

OSD Control and Flickering Problems

How to unlock OSD controls and resolve screen flickering.

Incorrect Display and Recognition Issues

Solutions for incorrect screen colors or unrecognized monitors.

PRODUCT SPECIFICATIONS OVERVIEW

SPECIFICATIONS FOR 22 MP410 SERIES

SPECIFICATIONS FOR 22 BP410 MODEL

SPECIFICATIONS FOR 24 MP400 SERIES

SPECIFICATIONS FOR 27 MP400 SERIES

Power Sources and Consumption

LG 27MP40W Specifications

General IconGeneral
Screen Size27 inches
Resolution1920 x 1080
Panel TypeIPS
Aspect Ratio16:9
Refresh Rate75 Hz
Response Time5 ms (GtG)
Brightness250 cd/m²
Contrast Ratio1000:1
InputsHDMI, D-Sub
Color GamutNTSC 72% (CIE1931)
Viewing Angle178°/178°
Power Consumption22W (Typical)

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