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LG 75UR640S3ZD User Manual

LG 75UR640S3ZD
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OWNER’S MANUAL
Safety and Reference
LED TV*
www.lg.com
Copyright © 2021 LG Electronics Inc. All Rights Reserved.
* LG LED TV applies LCD screen with LED backlights.
Please read this manual carefully before operating your set and retain it
for future reference.
*MFL71697932*
(2211-REV02)

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LG 75UR640S3ZD Specifications

General IconGeneral
Screen Size75 inches
Display TypeLED
Resolution3840 x 2160 (4K UHD)
Smart TVYes
Operating SystemwebOS
Refresh Rate60Hz
HDMI Ports3
USB Ports2
Wi-FiYes
BluetoothYes
EthernetYes
Audio Output20W
HDRYes

Summary

Connecting External Devices

Other Connection Options

HDMI Connectivity

Connect external devices via HDMI for best picture/audio. Supports various audio formats and Deep Colour.

Network Setup

Using the Remote Control

Troubleshooting Common Issues

TV Settings and Adjustments

Supported Video and Audio Modes

Infrared (IR) Codes

External Control Device Setup

RS-232C Serial Port Setup

Connect RS-232C serial port to external device for control. Cables are not supplied.

D-Sub 9-Pin Connector Details

Details of the D-Sub 9-Pin Male connector and pin assignments for RS-232C communication.

RS-232C Communication Configuration

Communication Parameters

Baud rate, data length, parity, stop bit, and communication code for RS-232C.

Setting the Device ID (Set ID)

Explanation of Set ID for controlling specific monitors via RS-232C, range 1-99 or 1000.

Command Reference List for TV Control

Power Control (k a)

Controls the TV's power on/off state. Uses command 'k a'.

Aspect Ratio Adjustment (k c)

Adjusts the screen aspect ratio. Uses command 'k c'.

Screen Mute Control (k d)

Controls screen mute on/off. Uses command 'k d'.

Volume Mute Control (k e)

Manages volume mute on/off. Uses command 'k e'.

Volume Level Adjustment (k f)

Adjusts the TV volume level. Uses command 'k f'.

Contrast Adjustment (k g)

Adjusts screen contrast. Uses command 'k g'.

Brightness Adjustment (k h)

Adjusts screen brightness. Uses command 'k h'.

Colour Adjustment (k i)

Adjusts screen colour settings. Uses command 'k i'.

Tint Adjustment (k j)

Adjusts screen tint. Uses command 'k j'.

Sharpness Adjustment (k k)

Adjusts screen sharpness. Uses command 'k k'.

Transmission and Receiving Protocol

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