LG 22MP55PJ - User Manual

Questions and Answers

K
kleeAug 11, 2025
What to do if no image appears on my LG 22MP55PJ?
- K
  Kelly CampbellAug 11, 2025
  If your LG monitor isn't displaying an image, start by ensuring the power cord is securely connected to the outlet. Then, press the power button. Adjust the brightness and contrast settings. If it's in power saving mode, try moving the mouse or pressing a key. Also, verify that your PC is turned on. If a message appears indicating a frequency range issue, consult the 'Specifications' section of the manual to reconfigure your display. Lastly, check the signal cable between the PC and monitor to ensure it's properly connected.
B
Barbara WilsonAug 19, 2025
Why is my LG monitor display image incorrect?
- V
  Vincent OwensAug 19, 2025
  If the display image on your LG monitor is incorrect, try pressing the AUTO button to automatically adjust the image to the ideal setting. You can also check the display settings in your computer's Control Panel to adjust the resolution or set the color setting higher than 24 bits (true color).
K
Katelyn JonesAug 26, 2025
What to do if the screen color is mono or abnormal on my LG monitor?
- B
  bryantmichaelAug 27, 2025
  If the screen color on your LG monitor is mono or abnormal, first check the signal cable and tighten it with a screwdriver if necessary. Also, make sure the video card is properly inserted in its slot. Finally, set the color setting higher than 24 bits (true color) in the Control Panel settings.
J
Jay ToddSep 2, 2025
How to unlock OSD on LG 22MP55PJ Monitor?
- S
  Shannon BellSep 2, 2025
  If you see an "OSD LOCKED" message on your LG monitor, you can unlock the OSD controls by pushing the MENU button for several seconds until the message “OSD UNLOCKED” appears.

This document is the owner's manual for an LG IPS LED Monitor, model 22MP55PJ. It provides comprehensive instructions for assembling, setting up, customizing, and troubleshooting the monitor, along with its technical specifications.

Function Description:

The LG 22MP55PJ is an IPS LED monitor designed for general computing and multimedia use. It supports various input signals including D-SUB (analog), DisplayPort (digital), and HDMI (digital video and audio). The monitor features an IPS (In-Plane Switching) panel, which typically offers wider viewing angles and better color accuracy compared to traditional TN panels. The LED backlighting contributes to energy efficiency and a slim design.

Important Technical Specifications:

Display Type: 54.6 cm (21.5 inch) Flat Panel Active matrix-TFT LCD with Anti-Glare coating.
Visible Diagonal Size: 54.6 cm.
Pixel Pitch: 0.08265*RGB(H) mm x 0.24795(V) mm.
Horizontal Frequency: 30 kHz to 83 kHz (Automatic).
Vertical Frequency:
- Analog/DP: 56 Hz to 75 Hz
- HDMI (PC): 56 Hz to 75 Hz
- HDMI (AV): 50 Hz to 61 Hz
Signal Input: 15 pin D-SUB Connector, DisplayPort Connector, HDMI Connector.
Max Resolution: 1920 x 1080 @ 60 Hz.
Recommend Resolution: 1920 x 1080 @ 60 Hz.
Power Consumption:
- On Mode: 20.3 W Typ. (Outgoing condition)
- Sleep Mode: ≤ 0.3 W
- Off Mode: ≤ 0.3 W
Power Input: AC 100-240V ~ 50/60Hz 1.0 A.
Dimensions (Width x Height x Depth):
- With Stand: 508 mm x 356 mm x 224 mm
- Without Stand: 508 mm x 312 mm x 150 mm
Weight:
- With Stand: 4.3 kg
- Without Stand: 3.9 kg
Tilt Range: -5° to 20°.
Environmental Conditions:
- Operating Temperature: 10°C to 35°C
- Operating Humidity: 10% to 80%
- Storage Temperature: -20°C to 60°C
- Storage Humidity: 5% to 90% non-Condensing
VESA Mounting: 100 x 100 mm, M4 screws (4 screws).

Usage Features:

Assembly and Setup: Detailed instructions are provided for attaching and detaching the stand base and body. The monitor can be mounted on a table or a wall (VESA compatible).
Adjustability:
- Angle Adjustment: The screen can be tilted from -5° (forwards) to 20° (backwards) for ergonomic viewing.
- Height Adjustment: The stand allows for height adjustment up to 110 mm.
- Pivot Function: The monitor can be rotated 90 degrees clockwise for portrait orientation, useful for tasks like document editing or web browsing. Users are advised to lift the monitor to its highest height before pivoting to avoid contact with the stand base.
Connectivity:
- PC Connection: Supports D-SUB, DisplayPort, and HDMI connections for various PC setups.
- AV Device Connection: HDMI input allows connection to AV devices for digital video and audio.
- External Devices: Includes headphone ports for connecting peripheral audio devices (sold separately).
On-Screen Display (OSD) Menu: Accessed via buttons on the bottom panel, the OSD allows users to customize various display settings.
- Input Selection: Users can manually select between D-SUB, DP, or HDMI inputs.
- Picture Settings: Adjustments for Brightness, Contrast, Sharpness, Black Level, Overscan, Gamma, and Color (Color Temp, Six Color, Color Reset).
- Display Settings: Horizontal and Vertical position, Clock, and Phase adjustments (primarily for analog input).
- Audio Settings: Volume control for headphone/earphone output.
- Other Settings: Language selection, Power Indicator control (On/Off), and Off Time Setting (automatic standby).
Reader Mode: Offers two presets (Reader 1 for newspaper-like display, Reader 2 for cartoon-like display) to optimize the screen for eye comfort, with adjustable brightness.
SMART ENERGY SAVING (SES): Provides High and Low options to save energy by adjusting monitor luminance, or can be turned Off.
Self Image Setting Function: Automatically optimizes display settings for individual analog input signals upon first connection or when the AUTO button is pressed. This helps resolve issues like blurry screens or tilted images.
Kensington Lock: A security slot is available on the rear for connecting a Kensington lock to secure the monitor.
Plug & Play: The monitor supports Plug & Play, allowing a PC to recognize it without extensive manual configuration.

Maintenance Features:

Troubleshooting Guide: The manual includes a section to help users diagnose and resolve common issues such as no image, "OUT OF RANGE" messages, "NO SIGNAL" messages, "OSD LOCKED" messages, and incorrect display images (mono color, flickering, horizontal noise).
Care Instructions: Users are advised to handle the monitor carefully when moving or lifting, holding the frame and not the panel itself, and to avoid strong shocks or vibrations.
Accessory Use: Emphasizes using only approved accessories and VESA standard screws for wall mounting to ensure safety and product longevity.
Image Retention Prevention: Recommends avoiding displaying fixed images for long periods and using a screensaver to prevent image burn.
Power Management: The monitor is designed to turn off automatically after 4 hours of inactivity (if no adjustment to display) in Europe, a setting that can be disabled via the OSD menu. It also enters Sleep Mode after a couple of minutes of inactivity.