How to remove lines or streaks on my LG LCD TV screen?
- EElizabeth McfarlandSep 12, 2025
If you see lines or streaks on the images displayed on your LG LCD TV, check the antenna or aim the antenna in the proper direction.

How to remove lines or streaks on my LG LCD TV screen?
If you see lines or streaks on the images displayed on your LG LCD TV, check the antenna or aim the antenna in the proper direction.
How to restore sound on LG LCD TV?
If you're not getting any sound from your LG LCD TV while images are displaying, try pressing the VOL + or - button. Ensure the sound isn't muted by pressing MUTE. Try switching to different channels as the problem might be with the broadcast. Finally, check if the TV Speaker feature is activated in the menu options.
How to brighten the screen on my LG 42LS3450?
If the image on your LG LCD TV appears extremely dark, adjust the brightness and contrast settings in the menu.
How to fix an LG 42LS3450 remote that is not working?
If you're unable to control your LG LCD TV with the remote, start by checking the remote control sensor on the TV and try again. Make sure there are no obstructions between the remote and the TV. Also, ensure the batteries in the remote are working and correctly installed.
Why does my LG 42LS3450 LCD TV keep turning off by itself?
If your LG LCD TV suddenly turns off, check the power control settings to ensure the power supply isn't interrupted. Also, verify 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 42LS3450 LCD TV says 'No Signal'?
If your LG LCD TV displays 'No Signal', verify that the signal cable is properly connected between the TV and other devices. Also, check the selected input source by pressing the INPUT button.
Why does my LG LCD TV turn off by itself?
If your LG LCD TV is turning off unexpectedly, you should first check the power control settings to ensure the power supply isn't being interrupted. Also, verify that the Auto sleep feature is not enabled within the Time settings. Lastly, be aware that if the TV doesn't receive a signal for 15 minutes while it's on, it will automatically shut off.
Why do afterimages appear on my LG 42LS3450 when it turns off?
If you notice afterimages (ghosts) when your LG LCD TV turns off, it may be due to pixels damaged from a fixed image displayed for a long time (image burn). To prevent this, use a screen saver.
How to fix no sound from one speaker on my LG 42LS3450?
If you are experiencing no output from one of the speakers on your LG LCD TV, adjust the Balance in the menu option.
Why does the image appear slowly on my LG LCD TV when I turn it on?
If the image appears slowly when you turn on your LG LCD TV, note that the image is muted during the startup process which is normal. If the image doesn't appear after a few minutes, unplug the TV for 30 seconds and try again.
| 3D | No |
|---|---|
| Operating relative humidity (H-H) | 20 - 80 % |
| Display diagonal | 42 \ |
| Native aspect ratio | 16:9 |
| LED backlighting type | Edge-LED |
| Supported video modes | 1080p |
| Supported graphics resolutions | 1920 x 1080 (HD 1080) |
| Tuner type | Analog & digital |
| Analog signal format system | NTSC |
| Digital signal format system | ATSC |
| RMS rated power | 10 W |
| Number of speakers | 2 |
| PC in (D-Sub) | - |
| USB 2.0 ports quantity | 1 |
| Ethernet LAN (RJ-45) ports | 0 |
| Number of OSD languages | 32 |
| Product color | Black |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Power consumption (standby) | 0.3 W |
| Cables included | AC |
| Operating temperature (T-T) | 5 - 40 °C |
| Depth (with stand) | 212 mm |
|---|---|
| Height (with stand) | 635 mm |
| Weight (with stand) | 11800 g |
| Depth (without stand) | 86 mm |
| Width (without stand) | 972 mm |
| Height (without stand) | 571 mm |
| Weight (without stand) | 10700 g |
Covers unpacking, lifting, setting up, mounting, and tidying cables.
Guidelines for safely lifting and transporting the television set.
Instructions for placing the TV on a stand or wall.
Steps for setting up the TV on a table and securing it.
Guidance on attaching the TV to a wall using a mount.
Methods for organizing and managing TV cables for a neat setup.
Covers channel setup, tuning, and management.
Displays information about the currently watched program.
Adjusts aspect ratio, AV modes, and uses the quick menu.
Connects the TV to the power source for operation.
Guides through the initial setup process after powering on.
Provides quick access to frequently used menus and settings.
Connects USB devices for multimedia features like browsing files.
Accesses photo or music lists and browses files from a USB device.
Allows viewing of image files saved on a USB storage device.
Enables playing music files from a USB storage device.
Overview of the main menu categories for TV settings.
Covers setup and editing of TV channels.
Adjusts image size, quality, and picture effects.
Adjusts sound quality, effects, and volume levels.
Sets time, date, and daylight-saving time features.
Customizes general settings like language and captioning.
Locks or unlocks channels and programs based on ratings.
Guides connecting an antenna or cable box to watch TV.
Illustrates connecting various external devices to the TV.
Guides connecting A/V sources like HD receivers, DVD, or VCRs.
Connects a PC to the TV using HDMI for best image quality.
Connects external audio devices using optical audio cable.
Connects USB storage devices for multimedia playback.
Controls AV devices connected via HDMI-CEC for simplified operation.
Provides instructions for cleaning the TV screen, frame, and cabinet.
Advises on avoiding permanent image disfigurement on the screen.
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