TFT Screen Not Working when Power Turned On
My TFT display screen does not light up when power is turned on. No picture is displayed.
There are 3 probable causes for this problem which can be quickly checked:
- The power supply is faulty, or is disconnected
- There is no video signal to the TFT screen
- The backlight or AD board may be faulty
Here are the possible solutions to be checked for each of the above causes:
Check the power supply to the TFT.
Test another working TFT in the host machine, to determine that a video signal is present.
Replace the backlight or AD board.