Hi, hope you guys are doing great.
I have an 820-01521 that had corossion in the USB C connector area, around Q7680 and on pins 37, 39 and 41 of J6700.
After cleaning and replacing several caps and resistors the machine now turns on to the connect a bluetooth mouse and keyboard screen. Every voltage on J6700 is present except for SPI_TPAD_3V3_CLK (0v) and PPBUS_G3H_TPAD_FLT is 12.56 instead of the 13.1 on the schematic.
I dont have a keyboard flex cable at hand to test it out.
I have an 820-01521 that had corossion in the USB C connector area, around Q7680 and on pins 37, 39 and 41 of J6700.
After cleaning and replacing several caps and resistors the machine now turns on to the connect a bluetooth mouse and keyboard screen. Every voltage on J6700 is present except for SPI_TPAD_3V3_CLK (0v) and PPBUS_G3H_TPAD_FLT is 12.56 instead of the 13.1 on the schematic.
I dont have a keyboard flex cable at hand to test it out.