Skip to Contents
Close

Help Library

Find help information for your LG product

Learn about product installation, maintenance, and troubleshooting using our search options.

Horizontal or Vertical Lines

  • Troubleshooting - Video
  • Others
  • Troubleshooting
  • Commercial TV, TV Accessories, TVs
TV- Horizontal/Vertical Lines

HORIZONTAL OR VERTICAL LINES

Often times, poor picture quality is the result of misrouted or loose cables.

Is this issue happening on all inputs and channels?

Check multiple inputs like a BluRay player, Cable Box, or Game System.

If the color is poor on all inputs, attempt to manually adjust the Picture Mode settings to a pre-defined setting like Sport, Game, Standard, Vivid, etc

If adjusting the Picture Mode settings didn’t resolve the issue, the device may require service.

If the color only appears on one input, further troubleshooting is necessary.

Determine the connection type being used

Component Cables

The component cables must be inserted securely into each device.

The colors are often mismatched, causing the image to become displayed in black & white or with a colored tint.

The colors MUST match the connections on the back of each device.

Connect the component cables to another component input on the back of the TV.

Use a different set of component cables.

Test the external device on another television.

Access Menu -> Picture ->Picture Mode to manually adjust color, tint, sharpness, etc. if the color was not corrected by the previous steps.

HDMI Cables

The HDMI cable must be inserted securely into each device.

Ensure that the length of the HDMI cable is not too long. (Recommendation is less than 10ft).

Ensure that the HDMI cable is not kinked or bent.

Check another HDMI cable.

If there is another device in the home with HDMI output, try the HDMI cable with that device.

Access Menu -> Picture ->Picture Mode to manually adjust color, tint, sharpness, etc. if the color was not corrected by the previous steps.

Composite (AV) Cables

Ensure that the Yellow cable is connected into the Yellow Video input instead of the component input labeled ‘Y’.

Try a different set of Red/White/Yellow cables.

Try a different AV input.

Test this device on a different TV in the home or connect another device into the same input on the TV.

Access Menu -> Picture ->Picture Mode to manually adjust color, tint, sharpness, etc. if the color was not corrected by the previous steps.

Note: An AV cable is NOT a high definition cable and will not produce a sharp, clear image.

Coaxial (Antenna) Cable

Ensure that the cable is connected securely to the input/output.

Access Menu-> Picture -> Picture Mode to manually adjust the color, tint, sharpness, etc.

Test another Coaxial cable if possible.

Note: A coaxial cable is NOT a high definition cable and will not produce a sharp, clear image.

Article Feedback

Q1. Overall, how satisfied were you with the usefulness of this information?
Q1-1. Why were you dissatisfied withthe usefulness of this information?

Characters left : 500 / 500