Why does my LG 37LK450 have no output from one speaker?
- CChristopher WilliamsAug 30, 2025
If you're not getting sound from one of the speakers on your LG LCD TV, adjust the Balance in the menu option.

Why does my LG 37LK450 have no output from one speaker?
If you're not getting sound from one of the speakers on your LG LCD TV, adjust the Balance in the menu option.
Why does my LG 37LK450 have afterimages?
Afterimages (ghosts) on your LG LCD TV can occur if pixels have been damaged from displaying a fixed image for a long time, also known as image burn. To prevent this, use a screen saver.
What causes unusual sound from inside LG 37LK450 LCD TV?
A change in ambient humidity or temperature may cause unusual noises when your LG LCD TV turns on or off. This is normal and does not indicate a problem with the TV.
Why does my LG LCD TV image appear slowly?
It's normal for the image to be muted briefly when you turn on your LG LCD TV. If the image doesn't appear after a few minutes, try unplugging the TV for 30 seconds and then plugging it back in.
Why is my LG 37LK450 LCD TV image black and white?
If the image on your LG LCD TV is displaying in black and white or the color quality is poor, first adjust the color setting in the menu. Then, make sure there's enough distance between the TV and other electronic devices. Finally, try changing channels as the issue might be with the broadcast itself.
What does it mean if my LG 37LK450 says 'No Signal'?
If your LG LCD TV displays a “No Signal” message, verify that the signal cable is properly connected between the TV and any connected devices. Also, check that you've selected the correct input source by pressing the INPUT button.
How to fix no sound on my LG LCD TV?
If your LG LCD TV is displaying images but has no sound, first try pressing the VOL + or - button. Check if the sound is muted by pressing the MUTE button. Try switching to other channels in case there's a broadcast issue. Finally, ensure the TV Speaker feature is enabled in the menu options.
Why does my LG 37LK450 LCD TV turn off suddenly?
If your LG LCD TV is turning off unexpectedly, examine the power control settings to make sure the power supply isn't being interrupted. Also, check if the Auto sleep feature is enabled in the Time settings. Note that the TV will automatically turn off after 15 minutes of inactivity if there is no signal.
What to do if my LG 37LK450 LCD TV has no image and sound?
If your LG LCD TV shows no image and produces no sound, first check if the TV is turned on. Next, make sure the power cord is securely connected to a working wall outlet. You can test the outlet by plugging in another device to see if it works.
Why do black spots appear on my LG 37LK450 screen?
The appearance of several red, green, white, or black pixels on your LG LCD TV screen is normal and relates to the characteristics of the panel.
| 3D | No |
|---|---|
| Power LED | Yes |
| Annual energy consumption | 158 kWh |
| Display diagonal | 37 \ |
| Display brightness | 400 cd/m² |
| Native aspect ratio | 16:9 |
| Supported video modes | 1080i, 1080p, 720p |
| Contrast ratio (dynamic) | 100000:1 |
| Display diagonal (metric) | 94 cm |
| Screen format adjustments | 4:3, 14:9, 16:9, Zoom |
| Supported graphics resolutions | 1920 x 1080 (HD 1080) |
| Certification | RoHs |
| Audio formats supported | MP3 |
| Image formats supported | JPG |
| Video formats supported | DIVX |
| HDMI ports quantity | 3 |
| 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. |
| S-Video inputs quantity | 0 |
| Digital audio optical out | 1 |
| Product color | Black |
| LED indicators | Y, Stand-by |
| Power consumption (standby) | 0.3 W |
| Power consumption (typical) | 108 W |
| RMS rated power | 20 W |
| Number of speakers | 2 |
| Depth (with stand) | 265 mm |
|---|---|
| Width (with stand) | 913 mm |
| Height (with stand) | 639 mm |
| Weight (with stand) | 12800 g |
| Depth (without stand) | 77.4 mm |
| Height (without stand) | 571 mm |
| Weight (without stand) | 11100 g |
Explains electrical grounding procedures for safety.
Details how to safely disconnect power from the unit.
Provides guidelines and warnings for watching 3D content safely.
Instructions for disposing of products containing mercury.
Compliance information for FCC rules in the USA and Canada.
Lists items included in the product box.
Explains how to attach ferrite cores for noise reduction.
Lists optional accessories available for purchase.
Identifies and describes the TV's buttons and controls.
Provides instructions for safely moving the television.
Guides the user through initial TV setup and stand attachment.
Explains the function of each button on the remote control.
Instructions for connecting TV to antenna or cable sources.
Guides initial power-on and setup for new users.
Basic steps for operating the TV while watching content.
Explains how to access and use frequently accessed TV settings.
Overview of how 3D imaging works on the TV.
Instructions and cautions for using 3D glasses.
Details optimal viewing distance and angle for 3D content.
Overview of the main menu structure and navigation.
Options for managing TV channels, including tuning and editing.
Adjustments for image quality, aspect ratio, and picture modes.
Options for customizing sound quality, modes, and volume.
Settings for clock, on/off timers, and sleep timer.
Features for blocking channels or content based on ratings.
Visual guide to connecting various external devices to the TV.
Details for connecting audio/video sources like receivers and players.
Instructions for connecting a computer to the TV for display.
How to connect a PC using an RGB (VGA) cable.
Guidance on connecting USB devices for multimedia playback.
How to navigate and view files from connected USB storage.
Instructions for playing video files from a USB device.
Information on registering for DivX VOD services.
How to view image files from a USB device.
How to play music files from a USB device.
Common issues and solutions related to TV operation and remote control.
Troubleshooting steps for video display problems like poor quality or lines.
Solutions for issues related to playing movie files from USB.
Technical specifications including dimensions and weight for various models.
List of supported video file types, codecs, and resolutions.
Supported 3D formats and signal types for 3D viewing.
Technical details of remote control signal transmission.
A table of commands for external control devices.
Instructions for connecting and controlling the TV via RS-232C.
Technical specifications for device communication, including baud rate and parity.
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