Hi, i have an Hp pavilion desktop all-in-one (27-xa0014) that shows no display on the main screen. however if i connect an external monitor, it shows windows login screen like normal. The touch screen portion does work. I have taken the entire computer apart and removed the LED backlight strip and tested each individual LED with a multimeter in diode mode and all LED's are good. I figure the next thing to test would be to see if the LED backlight is getting the proper voltage sent to it. Which is where i need assistance. im not sure how much voltage there should be or at which pins of the connector.
Any assistance is greatly appreciated
Any assistance is greatly appreciated
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