To Next PageTo Next PageWhy is there unusual sound from inside my LG 55LN5400?
An unusual sound from inside your LG LED TV might occur due to changes in ambient humidity or temperature when the product is turned on or off. This does not indicate a problem with your TV.
Why does my LG 55LN5400 LED TV turn off suddenly?
If your LG LED TV turns off unexpectedly, examine the power control settings to ensure the power supply isn't being interrupted. Check the Time settings to see if the Auto sleep feature is enabled. Also, note that the TV will automatically turn off after 15 minutes of inactivity if there is no signal.
How to fix LG 55LN5400 LED TV with no sound but image?
If your LG LED TV displays images but produces no sound, first, press the VOL + button to increase the volume. Also, check if the sound is muted by pressing the MUTE button. Try switching to other channels to rule out a broadcast issue. Finally, verify that the TV Speaker feature is enabled in the menu options.
What to do if LG 55LN5400 remote control is not working?
If you're unable to control your LG LED TV with the remote, first, ensure there are no obstructions between the remote and the TV's sensor. Then, check the remote's batteries to confirm they are working and properly installed. Finally, check the remote control sensor on the product and try again.
What to do if there is no output from one of the speakers on my LG LED TV?
If you're experiencing no output from one of the speakers on your LG LED TV, adjust the Balance in the menu option.
Why do thin lines appear in the background of my LG 55LN5400 LED TV screen?
If thin lines appear in the background of your LG LED TV screen, check the video cable connections.
Why do afterimages appear on my LG 55LN5400 LED TV?
Afterimages (ghosts) that appear when your LG LED TV is turned off may be due to pixels damaged from a fixed image displayed for an extended period. To prevent this, use a screen saver.
Why does my LG 55LN5400 make unusual sounds?
A change in ambient humidity or temperature may cause your LG LED TV to produce unusual noises when it turns on or off. This is normal and does not indicate a problem with the TV.
Why is the color quality poor on my LG 55LN5400?
If the image on your LG LED TV is in black and white or the color quality is poor, try adjusting the color settings in the menu. Ensure that the TV is far enough away from other electronic devices that might cause interference. You might also want to try changing channels in case the issue is with the broadcast signal.
What to do if my LG 55LN5400 has no image and sound?
If your LG LED TV shows no image and produces no sound, first, ensure that the TV is turned on. Next, check that the power cord is properly connected to a working wall outlet. To verify the outlet's functionality, try connecting another device to it.
General| Display diagonal | 55 \ |
|---|---|
| Native aspect ratio | 16:9 |
| Native refresh rate | 60 Hz |
| LED backlighting type | Direct-LED |
| Supported video modes | 1080i, 1080p, 720p |
| Screen format adjustments | 4:3, 16:9 |
| Supported graphics resolutions | 1920 x 1080 (HD 1080) |
| Motion interpolation technology | TruMotion 120 Hz |
| 3D | No |
| Analog signal format system | - |
| RMS rated power | 20 W |
| Number of speakers | 2 |
| DVI-D ports quantity | 0 |
| USB 2.0 ports quantity | USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them. |
| Consumer Electronics Control (CEC) | SimpLink |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 1 |
| Audio formats supported | AAC, AC3, MP3, PCM |
| Image formats supported | JPEG XR, JPG, MPO |
| Video formats supported | DIVX, MPEG |
| Product color | Black |
| Panel mounting interface | 400 x 400 mm |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Power consumption (standby) | 0.3 W |
| Power consumption (typical) | 58.9 W |
| Sustainability certificates | ENERGY STAR |
| Package depth | 210 mm |
| Package width | 1549.9 mm |
| Package height | 839.9 mm |
| Package weight | 27124.8 g |
Weight and Dimensions| Depth (with stand) | 296.9 mm |
|---|---|
| Height (with stand) | 790.9 mm |
| Weight (with stand) | 20819 g |
| Depth (without stand) | 78.9 mm |
| Width (without stand) | 1248.9 mm |
| Height (without stand) | 724.9 mm |
| Weight (without stand) | 18688 g |
Ensures earth ground wire connection to prevent electric shock, including antenna grounding.
Instructions for cleaning the TV surface using a soft cloth and mild detergent.
Guidelines for safely moving the TV, emphasizing turning it off and unplugging.
Recommendations for installing the TV in a well-ventilated area to prevent overheating.
Explanation of pixel defects on the screen, stating they do not affect performance.
Description of normal sounds like cracking or humming from the TV's circuits.
Advice on avoiding permanent image distortion from prolonged static displays.
Compliance information regarding digital device limits and interference for USA/Canada.
Guidance for cable installers regarding proper grounding of the building's system.
Covers unpacking, identifying parts, and initial setup procedures for the TV.
Identifies and describes the various buttons on the TV and remote control.
Details on accessing the owner's manual and important notes for its use.
Safety precautions and methods for lifting and transporting the television set.
Instructions for placing the TV on a surface or mounting it.
Step-by-step guide for assembling and attaching the TV stand.
Procedure for placing the TV on a table and ensuring stability.
Information on connecting an optional security cable for theft prevention.
Methods to secure the TV to a table to prevent tilting and ensure safety.
Instructions for organizing and securing cables using the provided cable holder.
Steps for safely mounting the TV to a wall using brackets and ropes.
Details on VESA standards and screw specifications for wall mounting.
Guide for connecting an antenna or cable box to receive TV signals.
Instructions for connecting external video devices like receivers and players.
Details on using HDMI for high-quality digital video and audio transmission.
Guide for connecting mobile phones via MHL for screen mirroring and control.
Instructions for connecting devices using component video and audio cables.
Guide for connecting devices using composite video and audio cables.
Steps for connecting a personal computer to the TV for display and audio.
Using HDMI to connect a PC for optimal image quality and audio.
Instructions for connecting external audio systems for enhanced sound.
Details on connecting audio systems using the digital optical audio output.
Guide for connecting USB storage devices for multimedia playback.
Initial setup process including language selection and basic settings.
Common issues and solutions related to TV control, image, and connectivity.
Troubleshooting steps for problems related to sound output and unusual noises.
Solutions for video quality issues like color problems, bars, and dark screens.
Information on connecting a USB to serial converter for external control.
Details on using RS-232C connections for PC control and service.
Key communication settings like baud rate, data bits, and parity for control.
A list of commands, functions, and notes for controlling the TV via external devices.
Explanation of protocols for sending commands and receiving data.
Format for acknowledging successful command execution and data transfer.
Format for acknowledging errors in command execution or data transfer.
