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Televisions have stood the test of time and have seen significant evolutions since their invention in the 20th century. They now come under various labels such as LEDs, LCDs, plasma, QLED, etc. However, certain parts are omnipresent in all of them. One such part is the T-Con Board. This article will cover everything you need about a T-Con Board in TVs.
What is a T-Con Board for TV?
A Timing Control (T-Con) board plays a pivotal part in all televisions. Its job is to accurately control the signals and channel video and images on the screen. It ensures the screen’s brightness levels, color accuracy, contrast, and other factors required to display media on the TV screen are always kept in check. Without it, you won’t be able to view quality media on your TV.
How does a T-Con Board work?
T-Con boards receive signals from the TV’s mainboard and then process them for the TV screen to interpret. This process has multiple layers, but the T-Con board handles most video processing tasks in a TV, including brightness levels, contrast, sharpness, etc. It applies an apt amount of voltage for each pixel on the screen to do so. Overall, it ensures signals are processed correctly at the right time and in the correct order.
T-Con Board Components
Being a complex TV component, T-Con Boards have various components that work together to display videos and images on TV screens. Let us look at each of them:
1. T-Con chip
The T-Con chip serves as the primary component in a T-Con Board. It receives pixels in a scalar quantity and controls the timing of the pixels displayed on the screen.
2. LVDS Interface
The low-voltage differential signal (LDVS) interface is a T-Con board component directly connected to the TV screen. It controls the voltage exchange in the TV screen to alter the visual settings of the screen.
3. Gamma correction chip
The gamma correction chip ensures color accuracy in the TV. It is crucial in modern televisions with an extensive range of colors.
4. Parallel links
Parallel links are wires that connect the scalar with the T-Con board. Unlike monitors generally using a single link, TVs use multiple similar links to form this connection.
The oscillator helps T-Con boards stay accurate in terms of time by generating a clock signal during its modus operandi.
Capacitors handle the electric charge within the system. T-Con board makes use of them too.
Where is the T-Con Board located?
Depending on the TV brand, t-Con Boards can be located in several areas. They are usually attached to the TV screen using an LVDS interface. With this attachment, it controls the voltage of the screen to alter visual values such as brightness, contrast, sharpness, etc. If you are trying to locate the T-Con board by opening it, be gentle and lose all power supplies before doing so.
The following video will help you locate and understand the functioning of T-Con board in your TV:
T-Con Board Failure Symptoms
A faulty T-Con Board can disrupt your TV viewing experience. Here are all the symptoms that could mean your T-Con Board isn’t running correctly:
1. Image distortion
The T-Con board is likely faulty if your TV screen displays distorted images. These images could be stretched, have unusual colors, show double images, etc.
2. Horizontal or vertical lines
The T-Con board is likely at fault if your display has consistent horizontal or vertical lines, even after changing channels and altering settings.
3. Flickering display
Sometimes the display can flicker when the T-Con board isn’t performing correctly. However, it would be best to consider changing channels or adjusting settings to confirm.
4. Single color display
The T-Con board may be at fault if your TV screen only shows a single color (or a significantly lower amount of colors). Standard colors include white, black, and blue.
5. No display
The clearest sign of damaged T-Con boards is when there is no video output at all. To confirm, try raising the volume when the TV is active. If you hear sound with no display, your TV fails to produce visual content.
How to fix: T-Con Board Failure
Fixing a damaged T-Con board is extremely tough, as it requires you to be adept in the technical side of the TV. The component is connected in a complex manner, and going in without knowledge could lead to you damaging other components. Getting the help of a technician is always advisable. They will help diagnose the problem correctly while also providing you with fixes.
Before contacting a technician, you can self-diagnose without opening the TV. To do so, check what kind of symptoms your TV shows and whether these systems can be fixed by software updates, changing channels, or settings. If the damage is confirmed, the T-Con board will likely be replaced.
If you want to know how to fix a malfunctioning T-Con board, please refer to this video tutorial: