LG 20~29" General Monitor 27MD5KL-BA.CN Product Specification English
Summary
This comprehensive owner's guide provides new users of the high-resolution LG display with everything needed for safe setup and optimal operation. It carefully covers essential installation requirements, detailed connectivity instructions (including Thunderbolt 3 and USB-C), advanced troubleshooting tips, and crucial safety precautions to ensure longevity and performance. Ideal for owners setting up or using this monitor in a professional or home environment, especially those syncing with Apple Mac devices.
Page 1 Text Content
OWNER’S MANUAL
(For Mac)
Please read this manual carefully before operating your set and retain it for future reference.
27MD5KL
www.lg.com
Copyright © 2019 LG Electronics Inc. All Rights Reserved.
Page Summary Contents For LG 20~29" General Monitor 27MD5KL-BA.CN Product Specification English
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OWNER’S MANUAL (For Mac) Please read this manual carefully before operating your set and retain it for future reference. 27MD5KL www.lg.com Copyright © 2019 LG Electronics Inc. All Rights Reserved.
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CONTENTS LICENSE Each model has different licenses. Visit www.lg.com for more information on the license. LICENSE ------------------------------------------------ IMPORTANT PRECAUTIONS ---------------...
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EN LISH To Avoid Personal Injury : IMPORTANT PRECAUTIONS Do not place the display on a sloping shelf unless properly secured. This unit has been engineered and manufactured to ensure your personal saf...
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Make sure the panel faces forward and hold it with both hands to move. If you drop the product, the damaged On Installation product can cause electric shock or fire. Contact an authorized the service ...
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EN LISH Be sure to use power cords and AC adapters provided or approved by LG Electronics, Inc. The use of non-approved products may cause a fire or electric shock. When unplugging the power cord, alw...
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OPEN SOURCE SOFTWARE NOTICE Without prior notice, all product information and specifications contained in this manual are subject to INFORMATION change to improve the performance of the product. To pu...
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EN LISH Product Description Camera Microphone and Ambient light Camera indicator light sensor
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Power connector Kensington lock hole Stand detach button NOTE The ambient light sensor is for auto brightness control of display and can be controlled by Mac OS. EN LISH
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EN LISH Input Connector USB expansion port Thunderbolt TM 3( ) / USB-C Host (Mac) connection port
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ID Label / Sub ID Label You can view the monitor's ID Label and Sub ID Label. Sub ID Label EN LISH
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EN LISH Stand * Refer Detaching the Stand ID Label NOTE ID Label: the monitor's standard ID label that states model name, production date, country of production, specifications, etc. Sub ID Label: a s...
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Moving and Lifting the Monitor CAUTION Avoid touching the monitor screen as much as possible. When moving or lifting the monitor, follow these instructions to prevent the monitor from being scratched ...
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EN LISH 2 Connect the power cord to the monitor and then plug the power cord into the wall outlet. Installing on a Table 1 Lift the monitor and place it on the table in an upright position. Place the ...
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Cautions When Connecting Power Cord Adjusting the Stand Height 1 Place the monitor mounted on the stand base in an upright position. 2 Handle the monitor with both hands for safety. Make sure to use t...
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EN LISH WARNING The left or right side of the monitor head can be slightly rotated up or down. Adjust the horizontal level of the monitor head. When adjusting the screen height, do not place your hand...
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Adjusting the Angle Using the Kensington Lock The connector for the Kensington security system is located at the back of the monitor. 1 Place the monitor in an upright position, mounted on the stand b...
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EN LISH NOTE The Kensington security system is optional. You can obtain optional accessories from most electronics stores.
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Detaching the Stand 3 Lift up the stand, slightly rotating it. 1 Place the monitor’s screen face down. To protect the screen from scratches, cover the surface with a soft cloth. 4 Pull the stand away ...
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EN LISH 5 Check whether the hooks on the stand are separated from the slots of the main unit. 6 Remove the stand once the hooks on the stand have been released from the slots of the main unit. Stand h...
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Attaching the VESA design cover 3 Push the VESA design cover in the slanted position until it touches the other side. 1 Place the monitor’s screen face down. To protect the screen from scratches, cove...
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EN LISH Installing the Wall Mount Bracket 1 Place the monitor’s screen face down. To protect the screen from scratches, cover the surface with a soft cloth. 2 Use four screws to attach the wall mount ...
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NOTE NOTE Install the monitor at least 100 mm away from the wall on each side of the monitor to ensure sufficient Vertical orientation is not recommended. ventilation. The wall mount bracket and the w...
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EN LISH MAKING CONNECTIONS CAUTION If you use generic cables not certified by LG, the screen may not display or there may be image noises. Do not press the screen for a prolonged time. This may cause ...
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USB-C connection Please connect a USB-C host with USB-C cable. NOTE PD (Power Delivery) is supported via Thunderbolt TM 3( ) / USB-C Host (Mac) port. Features may not work properly depending on the co...
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EN LISH Connecting to USB Device Power Delivery 5 V/1.5 A is supported via the USB expansion port. NOTE Peripheral devices are sold separately.
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TROUBLESHOOTING Nothing is displayed on the screen. Is your monitor connected to your Mac? • Connect your monitor to your Mac. The monitor will turn on automatically if the PC is operating normally. I...
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EN LISH The display color is abnormal. Does the display color appear unstable or Check if the signal cable is connected properly. Reconnect the cable or reinsert the PC's graphics card. monochrome? Ar...
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PRODUCT SPECIFICATION The product specifications below may be changed without prior notice due to upgrade of product functions. LCD Screen Type TFT (Thin Film Transistor) LCD (Liquid Crystal Display) ...
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EN LISH Environmental Conditions Operating Conditions Temperature 0 °C to 40 °C Humidity Less than 80 % Storing Conditions Temperature -20 °C to 60 °C Humidity Less than 85 % Speaker Stereo Speakers C...
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Signal Timing Resolution Horizontal Frequency (k Hz) Vertical Frequency (Hz) Polarity (H/V) Remarks 5120 x 2880 177.71 Main Recommended Timing EN LISH
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The model and serial number of the product are located on the back and on one side of the product. Record them below in case you ever need service. Model Serial No.
Manual Details
| Brand | LG |
|---|---|
| Pages | 31 |
| File Size | 6.64 MB |
| Published | May 25, 2026 |
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Frequently Asked Questions
What is the recommended operation temperature range?
Operating conditions require a temperature between 0°C and 40°C.
Can I use the display near water sources?
No, do not use this display near water such as bathrooms or laundry tubs to prevent damage and hazards.
What are the maximum supported resolutions?
It supports a recommended resolution of 3840x2160 @ 60 Hz via USB-C and up to 5120x2880 @ 60 Hz via Thunderbolt 3.
Where can I find my product's model and serial number?
The model and serial numbers are located on the back of the product and also on one side.