Common t-con board problems for LED TV Repair Review – No Image on screen
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Before you begin your repair, be sure to unplug your TV from any power source and properly ground yourself. We have already removed the back cover of our TV, but you will want to remove all of the screws connecting your back cover to your TV and then simply remove the back cover piece.
We have already removed the cover for our T-Con board right here, but this LED driver also has a cover. Here is what the T-Con board cover looked like originally, before we unscrewed it. So if you are doing any repairs to the backlight inverter/LED driver or the T-Con board, you will need to remove the covers for each of them before you replace the board.
Removing the covers can be simply done by removing the screws that hold them to the panel. The T-Con board actually takes the image and sends it to the panel which makes it show up on your screen. You can see the T-Con board is connected to the LED driver/Backlight inverter here and then connects to the panel via these cables here.
Some common problems with the T-Con board is that if you have no picture on your screen, but your TV does have backlights and sound, that could be the T-Con. It could also be the main board, but the T-Con could also be at fault if the is the symptom. You could also have colored vertical lines on your screen or half of the screen is missing the picture. Those would both be symptoms that could be bad T-Con board.
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