I have a problem with my LCD display
When I turn it on, the blue power led turns on for a second and then turns off.
I opened the display and found that the problem is on the power supply board , the 5V. When nothing is connected to power supply, the voltages are fine. when I connect the controller board, it is still fine. when I connect the panel controller, it stop sending the 5V. I replace all the electrolitic capacitors, still the same problem.
When I turn it on, the blue power led turns on for a second and then turns off.
I opened the display and found that the problem is on the power supply board , the 5V. When nothing is connected to power supply, the voltages are fine. when I connect the controller board, it is still fine. when I connect the panel controller, it stop sending the 5V. I replace all the electrolitic capacitors, still the same problem.
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