

Can anyone tell me how this part of a Playstation power supply works?
edit
i have corrected the mistake and now it's all good. Diode Inc.'s GCE marking in SOT-23-5 is a mosfet, Diode Inc's GCE marking in SOT-23-3 is a precision shunt regulator.
in short, the circuit creates a steady voltage and a switchable ground from a 120v-240v AC source to power an optoisolator to inform the power supply controller of whether there's mains voltage or not.
Original: I'm trying to draw up the schematic for the Lite-on versions of the Playstation 5 PSU and for the life of me I don't understand what's going on with this section of the PSU.
At a High level I get what's going on. When the 12v is applied, the AC from the bridge rectifier is turned into DC, knocked down by a series of resistors, then used to power (somehow) the sending side of an optoisolator (the other side of the opto sends a signal to the main PSU microcontroller)
More low-level, I can't make heads or tails of it. I'd also like to try and identify the component marked FC.