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LG 34UB88-P - User Manual

LG 34UB88-P
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OWNER’S MANUAL
IPS LED
MONITOR
(LED Monitor*)
www.lg.com
* LG LED Monitor applies LCD screen with LED backlights.
Please read this manual carefully before operating your set and retain it for future
reference.
34UM88
34UM88C
34UB88

Table of Contents

Questions and Answers

  • A
    Allen DavisJul 28, 2025
    Why is my LG 34UB88-P screen not displaying anything?
    • Z
      Zachary BurnsJul 28, 2025
      If your LG Monitor screen is blank, ensure the power cord is securely plugged into the outlet and that the power cable is properly connected. Also, press the power button. If that doesn't work, make sure the correct input is enabled by going to Menu > Quick Settings > Input. If the monitor is in sleep mode, try moving the mouse or pressing a key on the keyboard. Finally, verify that your computer is turned on. If the issue persists, check the cable and reconnect it.
  • D
    Daniel MoralesAug 2, 2025
    Why is there no sound from the headphone port of my LG 34UB88-P?
    • B
      Brian AndradeAug 2, 2025
      If there's no sound coming from the headphone port on your LG Monitor, first, ensure that the headphone connections are properly made. If that doesn't work, try increasing the volume using the joystick. As a last step, set the audio output of your PC to the monitor you are using. On Microsoft Windows, go to Control Panel > Hardware and Sound > Sound and set the Monitor as the default device.
  • U
    urollinsAug 7, 2025
    How to fix abnormal display colors on LG Monitor?
    • M
      Miranda RoyAug 7, 2025
      If the display color on your LG Monitor looks abnormal, first, set the color to 24 bit (true color) or higher. In Windows, this can be found under Control Panel > Display > Settings > Color Quality. If that doesn't resolve the issue, check the signal cable for a proper connection. Try reconnecting the cable or reinserting the PC's graphics card. Note that it's normal for LCD screens to have some pixilated spots (red, green, blue, white, or black).
  • C
    Cheyenne KellerAug 13, 2025
    Why does my LG Monitor screen retain an image?
    • R
      Richard JacksonAug 13, 2025
      Displaying a still image for a long time can damage your LG Monitor screen, causing image retention. To extend the monitor's life, use a screensaver.
  • N
    normankellyAug 17, 2025
    What to do if I see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on my LG Monitor?
    • S
      smithnicholasAug 17, 2025
      If you see an "Unrecognized monitor, Plug and Play (VESA DDC) monitor found" message on your LG Monitor, install the display driver from the CD or diskette that came with your display. You can also download the driver from the LG website: http://www.lg.com. Ensure your graphics card supports the Plug and Play function.
  • V
    Victoria StrongAug 22, 2025
    How to turn off OSD Lock on LG 34UB88-P?
    • R
      Rebecca RoyAug 23, 2025
      If you're getting the OSD Lock message on your LG Monitor, go to Menu > General and set OSD Lock to Off.

Summary

Product and Button Description

How to Use the Joystick Button

Explains the operation and functions of the joystick button.

Input Connector

Moving and Lifting the Monitor

Installing the Monitor

Assembling the Stand

Step-by-step guide on how to assemble the monitor's stand.

Installing on a Table

Adjusting the Stand Height

Adjusting the Angle

Installing the Wall Mount Plate

Installing on the Wall

USING THE MONITOR

Connecting to a PC

How to connect the monitor to a personal computer.

HDMI Connection

Detailed steps for establishing an HDMI connection.

DisplayPort Connection

Thunderbolt Connection

Connecting Peripherals

USB Cable connection - PC

USER SETTINGS

Activating the Main Menu

User Settings

Menu Settings

Quick Settings

Picture

Menu > Picture

Picture Mode

Color Adjust

Picture Adjust

Game Adjust

Sound

General

Menu > General

Reset

TROUBLESHOOTING

LG 34UB88-P Specifications

General IconGeneral
3DNo
DDC/CIYes
Pixel pitch0.2325 x 0.2325 mm
Screen shapeFlat
Response time14 ms
Display surface-
Display diagonal34 \
Display technologyLED
Vertical scan range56 - 61 Hz
Horizontal scan range30 - 90 kHz
Contrast ratio (typical)1000:1
Display number of colors1.073 billion colors
Display brightness (typical)300 cd/m²
Supported graphics resolutions3440 x 1440
Dynamic contrast ratio marketing nameMega Contrast
USB hub version3.2 Gen 1 (3.1 Gen 1)
Headphone connectivity3.5 mm
Thunderbolt ports quantity2
VGA (D-Sub) ports quantity0
AC input voltage100 - 240 V
Power consumption (off)0.3 W
Power consumption (standby)1.2 W
Power consumption (typical)65 W
Power consumption (PowerSave)56.7 W
Tilt angle range-5 - 20 °
Panel mounting interface100 x 100 mm
Package depth205.74 mm
Package width977.9 mm
Package height523.24 mm
Package weight11300 g
Sustainability certificatesEPEAT Gold, ENERGY STAR
CertificationUL (cUL) TUV-Type FCC-B, CE BSMI (for Taiwan) CCC (for China) Erp
Product colorBlack
RMS rated power14 W
Cables includedAC, DisplayPort, HDMI
Weight and Dimensions IconWeight and Dimensions
Depth (with stand)251.46 mm
Height (with stand)548.64 mm
Weight (with stand)8400 g
Depth (without stand)48.26 mm
Width (without stand)830.58 mm
Height (without stand)381 mm
Weight (without stand)6300 g

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