LG 55UF680T.ATR - User Manual

Questions and Answers

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thompsontylerSep 8, 2025
Why is there no picture or sound on my LG 55UF680T.ATR?
- G
  Gregory FinleySep 8, 2025
  If your LG LED TV has no image and no sound, start by checking if the TV is powered on. Next, confirm that the power cord is securely connected to a working wall outlet. To ensure the outlet is functioning correctly, test it by plugging in another device.
T
Tamara LeeAug 23, 2025
Why is my LG 55UF680T.ATR LED TV remote not working?
- M
  Michael PotterAug 23, 2025
  If you're unable to control your LG LED TV with the remote, first ensure that there are no obstructions between the remote and the TV. Next, verify that the remote control sensor on the TV is unobstructed. Finally, check that the batteries in the remote are working correctly and properly installed.
J
Juan RichardsAug 25, 2025
Why does my LG LED TV keep turning off?
- M
  mcfarlandmatthewAug 25, 2025
  Your LG LED TV might be turning off suddenly due to a few reasons. First, check the power control settings in case the power supply is interrupted. Also, verify that the Automatic Standby, Sleep Timer, or Timer Power Off features are not activated in the Timers settings. Lastly, if the TV doesn't receive a signal for 15 minutes, it will automatically turn off.
T
Teresa AndersonAug 27, 2025
Why does my LG LCD TV turn off suddenly?
- R
  Ryan CarneyAug 27, 2025
  Your LG LCD TV might be turning off suddenly due to a few reasons. The power supply could be interrupted, so check your power control settings. Also, Automatic Standby, Sleep Timer, or Timer Power Off might be activated in the Timers settings. Finally, if the TV doesn't receive a signal for 15 minutes, it will turn off automatically.
K
Kelly ComptonAug 27, 2025
How to fix LG 55UF680T.ATR remote control not working?
- A
  Andrew LopezAug 28, 2025
  If your LG LED TV remote isn't working, first ensure there are no obstructions blocking the path between the remote and the TV's sensor. Then, check the remote's batteries to confirm they are correctly installed and still have power.
C
Christine BradySep 22, 2025
What to do if LG LED TV says no signal when connected to PC?
- E
  Emily TaylorSep 22, 2025
  If your LG LED TV displays ‘No signal’ or ‘Invalid Format’ when connected to a PC via HDMI, try turning the TV off and then on again using the remote. If that doesn't work, try reconnecting the HDMI cable. As a final step, restart your PC while the TV is powered on.
W
William HendersonSep 16, 2025
Why does my LG LCD TV turn off by itself?
- C
  Cody BestSep 16, 2025
  If your LG LCD TV turns off suddenly, it could be due to a few reasons. The power supply might be interrupted, so check the power control settings. Also, verify if the Automatic Standby, Sleep Timer, or Timer Power Off is activated in the Timers settings. If the TV doesn't receive a signal for 15 minutes, it will automatically turn off.
A
Andre HardinSep 18, 2025
How to fix ‘No signal’ or ‘Invalid Format’ on LG LCD TV when connecting to PC (HDMI)?
- P
  Patricia MckeeSep 18, 2025
  If you see a ‘No signal’ or ‘Invalid Format’ message on your LG LCD TV when connecting to a PC via HDMI, try turning the TV off and on using the remote control. If that doesn't work, reconnect the HDMI cable. As another option, restart your PC while the TV is on.
W
wangraymondSep 7, 2025
Why does my LG LED TV turn off by itself?
- D
  Danielle SummersSep 7, 2025
  If your LG LED TV suddenly turns off, examine your power settings to ensure they are correctly configured. Also, verify if the Automatic Standby, Sleep Timer, or Timer Power Off features are enabled within the TV's timer settings. Note that the TV will automatically shut down after 15 minutes of inactivity if no signal is detected.
J
joseph18Sep 4, 2025
What to do if my LG LCD TV remote control is not working?
- Z
  Zachary BatesSep 4, 2025
  If you cannot control your LG LCD TV with the remote control, first check the remote control sensor on the TV and try again. Ensure there are no obstacles between the remote control and the TV. Also, verify that the batteries in the remote are working and properly installed.

This document is a user manual for an LG LED TV, model 43UF640T-TA (product name 43UF640T), with part number MFL68702232. The manual provides detailed information on safety instructions, setup, operation, maintenance, and troubleshooting.

Function Description:

The LG LED TV is a display product designed for home entertainment, offering various functionalities including digital TV reception, external device connectivity (HDMI, USB), and smart features. It supports 3D imaging on compatible models and offers a range of picture and sound settings. The TV can be controlled via a joystick button on the unit itself or through a remote control, including a Magic Remote for enhanced interaction.

Important Technical Specifications:

Model: 43UF640T-TA (Suffix AU)
Part Number: MFL68702232 (Revision 1505-REV00)
Printing Specification:
- Trim Size: 148 mm x 210 mm (A5)
- Printing Colors: 1 Color (Black) for both cover and inside pages.
- Stock (Paper): Uncoated, wood-free paper 60 g/m² for both cover and inside pages.
- Bindery: Saddle stitching.
- Language: ENG (1).
- Number of Pages: 20.
Environmental Conditions:
- Operating Temperature: 0 °C to 40 °C
- Operating Humidity: Less than 80%
- Storage Temperature: -20 °C to 60 °C
- Storage Humidity: Less than 85%
CI Module Size: 100.0 mm x 55.0 mm x 5.0 mm
Television System:
- Digital TV (Depending on Country): DVB-T/T2, DVB-T/T2/C/S/S2. Programme coverage includes VHF, UHF, C-Band, Ku-Band.
- Analogue TV (Depending on Country): PAL B/B, PAL B/G, PAL D/K, PAL-I, SECAM B/G, SECAM D/K, NTSC-M. Programme coverage includes VHF, UHF, CATV.
Maximum Number of Storable Programmes: DVB-T/T2 & Analogue TV: 1,500; DVB-S/S2: 6,000.
External Antenna Impedance: 75 Ω.
USB Connection: Supports USB 2.0. For optimal connection, USB devices should have bezels less than 10 mm thick and 18 mm width. An extension cable supporting USB 2.0 may be needed.
HDMI Connection: Use certified HDMI cables with the HDMI logo attached. Recommended types are High-Speed HDMI/™ Cable (3m or less) and High-Speed HDMI®/™ Cable with Ethernet (3m or less). For ULTRA HD Deep Colour, the TV supports 4K @ 50/60 Hz (4:4:4, 4:2:2, 4:2:0).
Wireless Module (LGSBW41) Specification:
- Wireless LAN Standard: IEEE 802.11a/b/g/n.
- Wireless LAN Frequency Range: 2400 to 2483.5 MHz, 5150 to 5250MHz, 5725 to 5850 MHz (for Non EU).
- Wireless LAN Output Power (Max.): 802.11a: 13 dBm; 802.11b: 15 dBm; 802.11g: 14 dBm; 802.11n-2.4GHz: 16 dBm; 802.11n-5GHz: 16dBm.
- Bluetooth Standard: Bluetooth Version 4.0.
- Bluetooth Frequency Range: 2400 to 2483.5 MHz.
- Bluetooth Output Power (Max.): 10 dBm or Lower.
Eco-hazardous substances: The product contains Eco-hazardous substances (Pb, Cd, Hg, Cr6+, PBB, PBDE, etc.) within LG standard level, adhering to Eco-SCM management standard [LG(56)-A-2524]. Users are advised not to use or contain lead (Pb) and cadmium (Cd) in ink.

Usage Features:

Joystick Button Control: Allows basic TV operations like power on/off, volume adjustment, and programme scrolling by pressing or moving the joystick button. It also provides access to menu items and quick settings.
Remote Control: The manual details the functions of a standard remote control, including power, TV/Radio selection, input source, quick settings, ratio adjustment, subtitle recall, number buttons, programme guide, volume control, favourite list, info display, mute, and programme scrolling.
Magic Remote Control (Depending on model): Offers advanced control with voice recognition, 3D viewing functions, and a pointer for on-screen interaction. Registration and deregistration procedures are provided.
3D Imaging (Only 3D models): Guidelines for 3D viewing, including recommended viewing time (5-15 minute breaks every hour), precautions for individuals with photosensitive seizures or chronic illnesses, and symptoms that require discontinuation of 3D content viewing. Specific cautions for using 3D glasses are also included.
Mounting Options:
- Table Mounting: Instructions for placing the TV on a table, ensuring proper ventilation and stability.
- Securing to a Wall (Not available for all models): Steps for attaching eye-bolts or TV brackets to the TV and wall, connecting them with a rope for stability.
- Wall Mounting: Detailed instructions for attaching an optional wall mount bracket to the TV and a solid wall, emphasizing the use of LG-approved brackets and qualified professional installers. VESA standard screw specifications are provided for various models.
Connections:
- External Devices: Connects various external devices like HD receivers, DVD players, VCRs, audio systems, USB storage devices, PCs, and gaming devices via HDMI and USB ports.
- Antenna Connection: Connects the TV to a wall antenna socket with an RF cable (75 Ω). Recommendations for signal quality improvement are given.
- Satellite Dish Connection (Only satellite models): Connects the TV to a satellite dish with a satellite RF cable.
- CI Module Connection (Depending on model): For viewing encrypted (pay) services in digital TV mode, with instructions on proper insertion and troubleshooting.
Eco-Friendly Features: The TV is designed to meet BEE Star labeling requirements for energy efficiency in 'Home' Mode. Users are advised on settings that can reduce power consumption.
Open Source Software: Information on obtaining source code under GPL, LGPL, MPL, and other open source licenses.

Maintenance Features:

Cleaning:
- General Cleaning: Advises regular cleaning of the TV to maintain performance and extend lifespan. Users should turn off the TV and disconnect power before cleaning.
- Screen, Frame, Cabinet, and Stand: Recommends using a dry, clean, soft cloth for light dirt and a soft cloth dampened with clean water or mild detergent for major dirt. Warnings against touching the screen forcefully, using harsh chemicals, or spraying liquid directly onto the surface are provided.
- Power Cord: Advises regular removal of accumulated dust or dirt from the power cord.
Safety Precautions: Extensive safety instructions cover:
- Placement: Avoid direct sunlight, high humidity, heat sources, areas exposed to steam/oil, rain/wind, or excessive dust.
- Power Connection: Use grounded AC mains sockets, ensure power cable is fully inserted, avoid contact with hot objects, do not place heavy objects on cables, and do not touch with wet hands.
- Product Handling: Do not drop the product, avoid strong impacts, do not insert metallic or inflammable objects, do not spray water or use inflammable substances, prevent children from climbing on the TV.
- Disassembly/Repair: Do not disassemble, repair, or modify the product; contact a service center.
- AC Adapter/Power Cord: Use only authorized LG AC adapters and power cords; do not disassemble them.
- Antenna: Ensure sufficient distance from power lines; bend antenna cable to prevent water ingress.
- Wall Mounting: Install securely on a solid wall; avoid unstable or inclined surfaces.
- Water Contact: Disconnect power and contact service if water enters the TV.
- External Devices: Use long enough cables to prevent the TV from falling.
- Overheating: Maintain at least 10 cm distance from walls, avoid placing in enclosed spaces, and ensure air vents are not blocked.
- Batteries: Use specified battery types, do not mix old and new batteries, keep away from excessive heat, and dispose of used batteries carefully.
- Power Plug/Outlet: Prevent dust accumulation.
- Screen Protection: Avoid pressing strongly on the panel, touching the screen for long periods, or using sharp objects.
- Moving the TV: Turn off and unplug all cables, work in pairs due to weight, and hold the frame firmly.
- Service: Refer all servicing to qualified personnel if the apparatus is damaged.
Troubleshooting: Provides guidance for common issues such as remote control not working, no image/sound, sudden TV shutdown, and 'No signal'/'Invalid Format' when connecting to a PC.
Environmental Information (India region only): Details on disposal of old appliances as per e-waste Management and Handling Rules, 2011, including dos and don'ts, hazards of improper handling, and contact information for collection centers.