Hello good night I have a problem with the lcd mentioned above the problem is the following turns on the LED as if the TV was on and lasts 2 seconds and returns to the color of stanbye the screen does not turn on at any time. The inverter is also activated (it has an internal LED) I checked the voltages of the source and I have the following error where I have a 5v pin I have 2V and the polarity reversed so I deduce that it is the source but check it and find nothing outside of place more than a 1000uf 16v inchado capacitor to replace it with a new one but still the same. I would appreciate if you could guide me in what may be the mistake, thank you very much.