I recently uploaded a detailed recapping video that focuses on the SONY CR-43 power supply used inside the Apple Hard Disk "SC" (SCSI) series zero-footprint drive enclosure. The recapping procedure covers the 20SC, 40SC, 80SC & 160SC variants because the same SONY PSU is used in all of them.
https://youtu.be/Qof-Wjj_rWI