blue10

good day I have attached the screen manual and the mother board manual and also the top view of the mother board. so far i have been able to notice that I am not getting the 3.3V for backlight enable and if I take a 3V from the power supply the screen backlight comes on. I have also noticed that I am not getting the 3.3V for TFT LCD MODULE (refer to 5.1 of lcd datasheet) and page 4 of the mother board data sheet( lvds header connection from the motherboard to the screen). the 3.3V for the tft lcd comes from JP3 then to the small chip which I cant find on the internet(l2ac). from the jumper the 3.3V is present then to the input of the chip. but there is no outuput from the chip to the 3,3V wire of the header. I have tried bypassing it but nothing comes on just only the backlight and I cant trace the enable pin whwere it get power from. G03-NF9G-F.pdf G150XGE-L04_CHIMEIInnolux.pdf

the chip is on the mother board, I am trying to repair it. it belong to a heat set machine. its came like that and has been operating for 3 years, only now its not working

good day i have NF9G-QM77 mother board connected to the G150XGE screen. I am not getting the 3.3V to enable the screen backlight on the mother board and the TFT LCD MODULE 3.3V, I have trace jumper giving 3.3V and that jumper is connected to a small chip and one of the pins of the chip is connected to the wire that is suppose to be taking 3.3 V to the screen. now I cant trace the chip, the chip number is L2AC. I am not sure if that is the problem so i wanna get the chip data sheet and read more on its, its a five pin chip can anyone help me.