zybo-z7 board usb power problem

[unit0]

This text was translated by AI.

I am using a Zybo-Z7 board, but the power switch is not functioning properly. Regardless of the power switch’s position, the board’s power is always on (LD16 remains on). Among the three pins of the power switch, the middle pin consistently measures 5V, suggesting that the EN pin of the TPS25940 is always high. JP6 is set to USB. I checked the schematic, but this part is not indicated. I would like to know which IC might need to be replaced.