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Melissa CarrAug 25, 2025
How to remove thin lines on LG 42LK520 LCD TV screen?
- TTina RivasAug 25, 2025
If thin lines appear in the background of the screen on your LG LCD TV, check the video cable connections.
To Next PageTo Next PageHow to remove thin lines on LG 42LK520 LCD TV screen?
If thin lines appear in the background of the screen on your LG LCD TV, check the video cable connections.
How to fix lines on my LG 42LK520 screen?
If lines or streaks appear on the images of your LG LCD TV, check the antenna and try aiming it in the proper direction.
General| Screen Size | 42 inches |
|---|---|
| Resolution | 1920 x 1080 pixels |
| Display Type | LCD |
| Aspect Ratio | 16:9 |
| Contrast Ratio | 100, 000:1 |
| Response Time | 5 ms |
| HDMI Ports | 3 |
| USB Ports | 1 |
| Weight | 20.5 kg |
| Backlight | LED |
| Built-in Tuner | Yes |
| Sound Output | 20 W |
Instructions for checking the contents of the product box.
Identifies and describes the TV's buttons and connection panels.
Instructions for setting up the TV on a stand or wall.
Steps for placing and securing the TV on a table.
Instructions for securely mounting the TV to a wall.
How to manage and secure TV cables.
Explains the function of each button on the remote control.
How to connect TV to antenna, cable, or cable box.
Initial setup steps and language/region customization.
Guide to setting up and managing TV channels.
How to add, delete, and reorder channels.
Adjusting image size and aspect ratio for optimal viewing.
Selecting and managing input sources connected to the TV.
Guidelines and precautions for viewing 3D content.
How to connect USB devices and access multimedia files.
Navigating and viewing media files (movies, photos, music) from a USB device.
How to play video files from a USB storage device.
Viewing image files from a USB storage device.
Playing audio files from a USB storage device.
Overview of the main menu categories for TV customization.
Options for tuning, editing, and managing TV channels.
Adjusting image quality, brightness, contrast, and color.
Adjusting core image settings like backlight, contrast, and sharpness.
Adjusting sound modes, volume, and speaker output.
Setting up parental controls, channel blocking, and key lock.
Introduction to connecting various external devices to the TV.
Visual guide to connecting different external devices to TV ports.
How to connect audio/video sources like receivers and players.
Connecting analog video and audio using component cables.
Connecting analog video and audio using composite cables.
Connecting the TV to a computer via HDMI or DVI.
Connecting USB storage devices for multimedia access.
Connecting the TV to an external audio system.
Using SIMPLINK for convenient control of connected HDMI-CEC devices.
Instructions for cleaning the TV screen, frame, cabinet, and stand.
Tips to avoid permanent image retention on the screen.
Common issues and solutions for TV operation and connectivity.
Solutions for image quality problems like color issues or lines.
Technical details of the infrared signal codes for remote control.
Connecting and configuring external control devices via RS-232C port.
Pin assignments and wiring for RS-232C connections.
List of RS-232C commands and their hex codes.
Details on data transmission and acknowledgment protocols.
List of open source software components used in the product.
