The board was "checked" by other technician and there was overheat on touchbar's touch flex componentes (under metallic protection.) and touchbar wasnt working at all. I bought touchbars and now touchbar gives image but touch is not working. Checked J442 and seems to be ok.
Checked J4402 for an kind of short to ground (with board off) and there is no short. Seems that touch is managed by U3900, is that right? What can i check?
Checked J4402 for an kind of short to ground (with board off) and there is no short. Seems that touch is managed by U3900, is that right? What can i check?