LG 27BN88U-B User Manual

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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.

27UN880

27BN88U

OWNER’S MANUAL

LED LCD MONITOR

(LED Monitor*)

www.lg.com

Copyright © 2020 LG Electronics Inc. All Rights Reserved.

Questions and Answers:

A
allisontimothyJul 28, 2025
What to do if nothing is displayed on my LG 27BN88U-B Monitor screen?
- R
  Rodney AllenJul 29, 2025
  If nothing is displayed on your LG Monitor, ensure the power cord is correctly plugged into the outlet. Also, check the power cable connection and press the power button. Verify that the connected input is enabled in the monitor's settings under the Input option. If the signal cable between the PC and the monitor is missing or disconnected, check the cable and reconnect it. Finally, if signals from the PC are out of the monitor's frequency range, refer to the Product Specification section of the manual to set the appropriate frequency.
A
Angel GarciaAug 3, 2025
What to do if there is no sound from the headphone port of my LG 27BN88U-B?
- M
  millerrobertAug 3, 2025
  If there's no sound from the headphone port of your LG Monitor, first make sure that the headphone port connections are properly made. Next, try increasing the volume using the joystick. Finally, set the audio output of your PC to the monitor you are using; the settings may differ depending on your operating system.
M
Maria ValenciaAug 7, 2025
Why is my LG 27BN88U-B screen display unstable and shaky?
- L
  Logan JacksonAug 7, 2025
  An unstable or shaky display, or images leaving shadow trails on your LG Monitor can occur if the selected resolution is HDMI 1080i 60/50 Hz (interlaced). Try changing the resolution to 1080p or the recommended resolution. Also, ensure that the graphics card is set to the recommended (optimal) resolution, as not doing so may result in blurred text, a dimmed screen, a truncated display area, or misalignment of the display. For further assistance, contact the manufacturer of your computer or graphics card.
F
fthompsonAug 12, 2025
How to fix the 'Unrecognized monitor, Plug and Play (VESA DDC) monitor found' message on my LG Monitor?
- P
  Paul WilliamsAug 12, 2025
  To resolve the 'Unrecognized monitor, Plug and Play (VESA DDC) monitor found' message on your LG Monitor, install the display driver from the LG website. Also, make sure to check if the graphics card supports the Plug and Play function.
K
Kristopher JohnsonAug 17, 2025
Why does image sticking occur even when my LG Monitor is turned off?
- U
  ujohnstonAug 18, 2025
  Image sticking on your LG Monitor, even when turned off, can occur from displaying a still image for a prolonged time. To extend the monitor's lifespan, use a screensaver.
P
patelangelaAug 22, 2025
How to unlock functions when the Menu button on my LG Monitor is not working?
- B
  Barry SchultzAug 22, 2025
  If some functions are not available when you press the Menu button on your LG Monitor, it may be because the OSD is locked. To unlock these functions, disable OSD Lock in the General settings.

LG 27BN88U-B Specifications

General

Color	black
Screen Type	lcd
Wall Mount	100mm x 100mm
Webcam	no
OS Compatibility	windows
Screen Size	27 inches
Panel Type	not applicable
Aspect Ratio	16:9
Resolution	3840 x 2160
Refresh Rate	75hz
Response Time	5 milliseconds
Brightness	350 candela per square meter
Contrast Ratio	1000:1
Synchronization	not applicable
HDR	yes
Built-In Speakers	yes
HDMI Ports	2
Width with Stand	24.1 inches
Net Weight without Stand	17.2 pounds

Summary

ASSEMBLING AND PREPARING

Moving and Lifting the Monitor

Installing on a Table

Instructions for safely placing the monitor on a flat table surface.

How to fix a clamp

How to install on tables with different thickness levels

Installing on the Wall

Installing the Wall Mount Plate

Steps for attaching a wall mounting bracket to the monitor.

USING THE MONITOR

USER SETTINGS

Activating the Main Menu

Guide on how to access and navigate the monitor's main On-Screen Display menu.

Main Menu Features

Menu Settings

Detailed steps for navigating and adjusting settings within the main menu.

Quick Settings

Input

Picture

Picture Adjust

Sound

General

TROUBLESHOOTING

PRODUCT SPECIFICATION

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