Post originale di: Reece ,
@mauma check for a short to ground on pin 1 of C9799 and also check the voltage on pin 1 of this and let me know. Would recommend getting board view and schematic for the 820-3330, so you can use the board view software to find the component. @jbwftw check voltage on pin 2 D9701 to see if U9701 is working properly, and let us know the voltage. U9701 is only for the backlight.