Why You Shouldn’t Ignore Lines on Your TV Screen

Thin lines across your TV screen might seem like a small issue at first, but they can indicate more serious problems.
Let’s explore what causes screen lines and what Irish users should do about them.

Types of Screen Lines

• Vertical lines: Often signal ribbon cable or screen panel problems

• Horizontal lines: May result from signal issues or T-con board faults

• Coloured or flickering lines: Can indicate overheating or software bugs

Common Causes

• Loose or damaged internal ribbon cables

• Failing T-con (timing control) board

• Graphics processor or main board malfunction

• Software or signal glitches from connected devices

DIY Troubleshooting

1. Check HDMI and AV cables

   • Replace with new or test on another device

2. Restart the TV and perform a factory reset

3. Switch sources or inputs

   • See if the lines appear across all channels/devices

4. Gently tap the frame

   • If the lines flicker or move, it may be a loose connection

When to Call a Professional

• Lines persist on all sources

• Lines have grown worse over time

• Appears after a physical impact or power surge

🔍 Snippet:

Lines on your TV screen? Find out what causes vertical or horizontal lines and when it’s time to get expert help in Ireland.