The reason for the repair was the lack of ADC TLC2543 readings. In the circuit highlighted in red was a positive signal overload of an unidentified source.
I could not find any other connections to this circuit. After raising the pins of the chips on the PCB, the ADC work was normalized, but there was a specified error. I don't know which nodes hardware block 1 belongs to and where else to look for the source of the problem.
If anyone has access to the schematic diagram, please check if the chain is highlighted in red in another connection somewhere else, or is it a defect of the PCB.