Often indicates a shorted MOSFET in the PFC or PWM stage.
, specifically the "CUH-1200" series . While official manufacturer schematics from Delta Electronics or Sony are not publicly released to consumers, the repair community has reverse-engineered much of the board's layout and common failure points. Technical Specifications Adp-200er Schematic
Because professional schematics are scarce, repairers often rely on identifying specific component failures such as open fuses, shorted PFC circuits, or failed bridge rectifiers. Guides for identifying individual components (like MOSFETs and ICs) can be found through repositories like the PS4 Power Supply Component Guide on Scribd . Often indicates a shorted MOSFET in the PFC or PWM stage