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Angela LoganSep 23, 2025
How to fix streaks on LG 42LK450 screen?
- NNancy DennisSep 23, 2025
To fix lines or streaks on the images of your LG LCD TV, check the antenna connection or try aiming the antenna in a better direction.
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To fix lines or streaks on the images of your LG LCD TV, check the antenna connection or try aiming the antenna in a better direction.
What to do if my LG 42LK450 LCD TV displays “This file is invalid”?
If your LG LCD TV shows a message saying “This file is invalid” or the audio works but the video doesn't, check if the file plays correctly on a PC to ensure it's not damaged. Also, verify that the resolution, video codec, and frame rate are supported by the TV.
Why does my LG LED TV keep turning off by itself?
If your LG LED TV is turning off suddenly, check the power control settings to ensure the power supply isn't interrupted. Also, verify if the Auto sleep feature is activated in the Time settings. If there is no signal while the TV is on, the TV will turn off automatically after 15 minutes of inactivity.
What to do if LG LCD TV displays “This file is invalid”?
If your LG LCD TV displays the message “This file is invalid” or the audio works but the video doesn't, check the following: * Ensure the file plays correctly on a PC to verify it's not damaged. * Confirm that the resolution is supported. * Check if the video/audio codec is supported. * Verify that the frame rate is supported.
Why doesn't the file appear on the Movie List of my LG 42LK450 LCD TV?
Check whether the extension is supported.
What causes horizontal bars on my LG LED TV screen?
If horizontal or vertical bars appear on your LG LED TV, or if images blur, check for local interferences from electrical appliances or power tools.
Why are there black spots on my LG LED TV screen?
If black spots appear on the screen of your LG LED TV, this can be attributed to the characteristics of the LCD panel, where several pixels in red, green, white, or black may appear. This is normal.
What if the file does not appear on the Movie List of LG LCD TV?
If a file does not appear on the Movie List of your LG LCD TV, check whether the file extension is supported.
Why are there black spots on my LG LCD TV screen?
The black spots that appear on your LG LCD TV screen are due to the characteristics of the panel, and this is normal.
Why is there no sound on my LG LED TV?
If your LG LED TV is displaying images but there is no sound, try the following: First, press the VOL + or - button to adjust the volume. Check if the sound is muted by pressing the MUTE button. Try switching to other channels to rule out a broadcast issue. Finally, ensure that the TV Speaker feature is activated in the menu options.
General| Audio system | Infinite Sound |
|---|---|
| RMS rated power | 20 W |
| Number of speakers | 2 |
| Product color | Black |
| Panel mounting interface | 200 x 100 mm |
| 3D | No |
| Product weight | 29.5 lbs |
| Depth (imperial) | 3 \ |
| Width (imperial) | 40.1 \ |
| Height (imperial) | 24.8 \ |
| Power requirements | AC 100 - 220 V, 50/60 Hz |
| Annual energy consumption | 197 kWh |
| Package weight (imperial) | 41.9 lbs |
| Set depth (with stand) (inch) | 10.4 \ |
| Set width (with stand) (inch) | 48.1 \ |
| Set height (with stand) (inch) | 27.5 \ |
| Weight (with stand) (imperial) | 33.3 lbs |
| HDMI ports quantity | 3 |
| SCART 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. |
| Digital audio optical out | 1 |
| Number of OSD languages | 4 |
| Sustainability certificates | ENERGY STAR |
| Display diagonal | 42 \ |
| Display technology | LCD |
| Native aspect ratio | 16:9 |
| Native refresh rate | 60 Hz |
| Contrast ratio (dynamic) | 100000:1 |
| Display diagonal (metric) | 107 cm |
| Package depth | 160 mm |
| Package width | 1229 mm |
| Package height | 770 mm |
| Smart modes | Cinema, Game |
| Power consumption (standby) | 0.28 W |
| Power consumption (typical) | 135 W |
Weight and Dimensions| Weight (without stand) | 13393 g |
|---|
Covers precautions for water usage, cleaning, ventilation, heat sources, and plug safety.
Details risks of electric shock and fire from power cords, impact, and flammable materials.
Provides guidelines for cord protection, using attachments, servicing, and lightning safety.
Addresses dot defects, generated sound, and precautions for viewing 3D content.
Identifies physical parts and buttons on various TV models.
Covers stand attachment, table/wall mounting, and cable management.
Explains the function of each button on the remote control.
Explains how to watch TV, use the quick menu, and navigate settings.
Details on channel tuning, editing, and picture adjustments.
Covers sound modes, time settings, and parental controls.
