Chosen Solution
I have no idea to do right now..because I already replaced u12 and u15, Still no touch, I check connector it good in shape.. I just restore, Still no touch What more solutions ? Thank..
Have you checked to insure those two IC’s are receiving the proper voltages (PP5V1_GRAPE_VDDH, PP1V8_GRAPE, PP5V7_SAGE_AVDDH, PN5V7_SAGE_AVDDN & PP_SAGE_TO_TOUCH_VCPL)? Most of these are generated by Chestnut (U3).
