How do I get rid of vertical lines on my LCD TV?
How do I get rid of vertical lines on my LCD TV? If you experience a TV showing colored vertical lines, try gently tapping in different areas on the back of the TV, you may see the vertical colored lines go away completely or they might decrease in intensity. If so, you may simply have a loose wiring cable. What causes vertical lines on TV screen? A bad cable, or a cable that is not securely fastened to the input/output ports, can disrupt the signal and cause horizontal or vertical lines. Verify that the cable in use is secured correctly...