Replace Your TV’s T-Con Board – Step-by-Step Technician Guide

The T-Con (Timing Control) board is the heart of your LED TV’s display. When it fails, you may see flickering, distorted colors, vertical/horizontal lines, or no picture at all. Replacing it is a straightforward process for technicians or experienced DIY users.

Tools You’ll Need

  • Phillips screwdriver

  • Anti-static gloves or wrist strap

  • Soft cloth or mat to protect the screen

  • Replacement T-Con board (matching your TV’s model and part number)

Step 1 – Power Off and Unplug the TV
Always disconnect the TV from power to avoid electric shock.

Step 2 – Remove the Back Cover
Lay the TV face down on a soft surface. Unscrew and remove the back panel carefully.

Step 3 – Locate the T-Con Board
The T-Con board is usually positioned in the center-top area, connected to the main board and display panel via ribbon cables.

Step 4 – Disconnect Cables
Gently release the ribbon cables by flipping up the locking tabs. Also unplug any other connectors attached to the T-Con board.

Step 5 – Remove the Old T-Con Board
Unscrew the board from its mounting points and lift it out carefully.

Step 6 – Install the New T-Con Board
Place the new board in position, screw it in place, and reconnect all cables securely. Ensure ribbon cables are locked properly to avoid display issues.

Step 7 – Test the TV
Before putting the back cover on, power on the TV to check if the picture has been restored.

Step 8 – Reassemble
If the display is working fine, turn the TV off, replace the back cover, and screw it in.

Pro Tips:

  • Always match the part number on your old T-Con board with the new one.

  • Handle ribbon cables with care — damage can cause display issues.

  • If replacing the T-Con board doesn’t fix the problem, the issue could be with the main board or the display panel.