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LG 55UF6450 - User Manual

LG 55UF6450
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OWNER’S MANUAL
Safety and Reference
LED TV*
* LG LED TVs are LCD TVs with LED backlighting.
P/No : MFL68741506 (1507-REV01)
www.lg.com
*MFL68741506*
Please read this manual carefully before operating your TV and retain
it for future reference.
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Questions and Answers

  • R
    Richard JamesJul 27, 2025
    Why does my LG TV turn off suddenly?
    • H
      hfreemanJul 27, 2025
      Your LG TV might be turning off suddenly because of a few reasons. The power supply could be interrupted, so check the power control settings. Also, the Sleep Timer or Timer Power Off feature might be activated in the TIMERS settings. If the TV is on but there's no signal, it will turn off automatically after 15 minutes of inactivity.
  • V
    villavictoriaAug 1, 2025
    What to do if the LG 55UF6450 LED TV remote control is not working?
    • H
      Holly BurnettAug 1, 2025
      If you cannot control your LG LED TV with the remote, try the following: * Ensure nothing is covering the remote receiver on the TV. * Make sure there are no obstacles blocking the path between the remote and the TV. * Replace the remote batteries with new ones.
  • G
    glennlindaAug 5, 2025
    How to fix an LG TV remote control that is not working?
    • C
      Cheryl WilsonAug 5, 2025
      If you cannot control your LG TV with the remote, check if anything, like tape, is covering the receiver. Make sure there are no obstacles between the remote and the TV. If those aren't the issue, try replacing the batteries in the remote with new ones.
  • D
    daleriosAug 9, 2025
    How to fix LG LCD TV remote control not working?
    • A
      Andrea BeanAug 10, 2025
      Check the following: * Make sure nothing is covering the remote receiver on the LG LCD TV, such as tape. * Ensure there are no obstructions between the remote control and the TV. * Try replacing the remote batteries with new ones.
  • J
    Jeffrey MitchellAug 13, 2025
    What to do if my LG 55UF6450 has no picture and sound?
    • V
      Victor HughesAug 14, 2025
      If your LG LED TV shows no image and produces no sound, please check the following: 1. Verify that the TV is powered on. 2. Confirm that the power cord is securely connected to a working wall outlet. 3. Test the wall outlet by plugging in another device to see if it functions correctly.
  • L
    Lori JeffersonAug 18, 2025
    Why does my LG 55UF6450 LED TV turn off by itself?
    • J
      Jessica HendrixAug 18, 2025
      Your LG LED TV might be turning off suddenly due to a possible interruption in the power supply. Please check the power control settings. Also, verify if the Sleep Timer or Timer Power Off feature is activated within the Timers settings.
  • G
    goodwindanielAug 22, 2025
    Why does my LG LCD TV turn off by itself?
    • L
      Lori WilkinsAug 22, 2025
      It may be that the power supply is interrupted, so check the power control settings. Also, the Sleep Timer or Timer Power Off feature might be enabled in the Timers settings. Finally, if the TV doesn't receive a signal for 15 minutes, it will automatically turn off.

Summary

Safety and Reference

Important Safety Instructions

Essential precautions to prevent hazards and ensure safe operation of the product.

Grounding and Electrical Safety

Guidelines for proper grounding and safe electrical connections to prevent hazards.

Product Care and Handling

Instructions for cleaning, moving, and installing the TV safely and maintaining its performance.

Regulatory Compliance

Information on FCC and IC regulations, including RF exposure and interference.

Troubleshooting

Solutions for common problems like remote control issues, no image, or sudden power off.

Specifications

Detailed technical data including dimensions, weight, power requirements, and wireless specs.

Child Safety Recommendations

Crucial advice on safe TV placement and securing to prevent tip-over incidents and child injury.

External Control Device Setup

Key Codes for Remote Control

A reference list of hexadecimal codes for various remote control buttons and functions.

Connection Interfaces

Details on USB to Serial converters, RS-232C cables, and phone jack connections for external control.

Communication Protocols

Information on communication parameters, command syntax, and data mapping for external control.

LG 55UF6450 Specifications

General IconGeneral
Screen Typeled
Wall Mount300mm x 300mm
Featurestru-4k engine
Tunerdigital
Screen Size54.6 inches, 55 inches
Screen Technologynanocell led
Resolution4k (2160p)
Refresh Rate120hz
HDRno
Surround Sounddts
Speakers Output20 watts
Number Of Speakers2
HDMI Ports3
HDMI 2.1 Ports0
USB Ports1
RF Antennayes
Digital Optical Audio Outputs1
Component Video Inputs1
Composite Video Inputs1
DVI0
SmartTVwebos
Streaming Servicesnetflix, youtube
Voice Assistantother
3Dno
Power Consumption154 kilowatt hours
Depth with Stand9.3 inches
Height with Stand30.4 inches
Width with Stand48.8 inches
Net Weight with Stand39.9 pounds
Depth without Stand2.2 inches
Height without Stand28.4 inches
Net Weight without Stand39.2 pounds

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