The ULTIMATE GUIDE to Fixing TV's NO PICTURE
When repairing an LED TV with no pictures, the first step is to check if the TV has power and if the backlight is working. If the backlight is working but there's still no picture, the problem may be related to the TV's T-Con board or the main board. If the backlight is not working, then it's likely a power supply issue.
To check the T-Con board, you will need to use a multimeter to test the voltage outputs and confirm if they are within the normal range. If the T-Con board is faulty, it will need to be replaced.
If the T-Con board is not the issue, the next step is to check the main board. Again, you will need to use a multimeter to test the voltage outputs and confirm if they are within the normal range. If the main board is faulty, it will also need to be replaced
In some cases, the problem may also be related to a loose or damaged cable. So, it's important to check all the connections between the various components of the TV and ensure that they are properly connected.
Overall, repairing an LED TV with no pictures can be a bit complex, and it's best to have a professional technician diagnose and repair the issue.