820-3330 Booting but no video output


I have an 820-3330 board that was not spilled on. Everything seems to be booting, voltages are testing normal, chimes, but no video output to screen or external display. It has 3.3V on pin 4 of the lcd connector. I have two known good screens and another functional board that I'm comparing it to. Any ideas about this?


New member
did you guys figure out the problem? having an exact same board here and would appreciate any advice. having no clues at this moments.,

thank you