All About T-CON Board Signals and Voltages (T-CON Repairing)

Soft4led
2 min readMar 23, 2021

Hey, Guys Welcome back to our website Ptechnicians.com I hope you will be fine. So today in this latest post we are going to share the all information about T-CON Signals and Voltages.

And If you want to learn or improve your knowledge of T-CON Board Repairing then this is the best and useful post for you. So please read this post till the end and then say thanks in the comment section. So let’s start.

What is T-CON Board

The Timing Controller ( T-CON) Board is the main circuit that you see in between the TV Motherboard and LCD/LED Display Panel. It transfers the Generated video from the main motherboard to the display panel. The T-CON board also genrates the volatges for the panel to be opretaed.

How to Repair T-CON Boards

First You need to check the 5V or 12V, If you are not getting 5 or 12 Voltages from the Motherboard then check the Panel Power section on your Main Motherboard. If T-con supply is available but 16V and 26V is not available, check the inputs and outputs of the DC to DC converter ICs.

These ICs may be damaged due to our heating. These Converters ICs will not be activated until the “ PANEL_ON or PANEL_CTL “ signal received from the Main Board. Some T-CON does not work if the display panel is not connected with it.

If the voltages are present but there is not picture then check the signals that are transmitted from the motherboard to the chip. Please do this measurement carefully. If the probe mistakenly shorts the circuit then you may lose the T-CON, Panel, or Motherboard.

Now, If you measure the voltages between 1V2 and 1V6 on the data lines, data signals are being sent from the motherboard to the t-con. Now you need to follow the voltages transmitted from the controller to the panel on the panel control card.

If you can notice the fuses on the panel are blown, Heating, corrosion, or oxidation in the SMD parts, the panel is defective. If the PCB is Okay then you can change your T-CON Board, it is faulty.

Originally published at https://www.ptechnicians.com on March 23, 2021.

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Soft4led

Soft4led is a Team providing help regarding to Electronics, LCD/LED TV Repairing and much more