Re: UN48JU6400 LEDS lightly flicker but won't stay on

Just unplug the connector from PS to main. If the Backlights light up and stay lit then you may have a mainboard issue. Then U have to unplug the T-con from mainboard and troubleshoot down to the panel which means unplugging the 2 ribbon cables going to the driver boards or panel from the bottom of the t-con board to see if the tv BL's stay lit.