The primary side, which handles the high-voltage AC input, is managed by two key controller ICs.
. Community experts often rely on reverse-engineered diagrams and visual guides, such as those found on or technical walkthroughs on
This article consolidates that information to provide a detailed guide for anyone looking to understand and repair this specific power supply unit (PSU).
: Fuse, voltage varistor (for surge protection), Class X and Y capacitors, and a common mode choke.
: Negative Temperature Coefficient ( NTC ) thermistors limit massive inrush currents when the main bulk capacitor charges up. 2. Bridge Rectification and PFC Stage