This is where the mains power (usually 110V or 220V) enters. It contains safety features like a glass fuse and a metal oxide varistor (MOV) for surge protection.
After the filter stage, the AC voltage feeds directly into a high-current . The rectifier converts the AC voltage into a pulsating DC output. This output is smoothed by a massive high-voltage DC filter capacitor (typically 5µF, 400V or 450V) working alongside an induction line filter inductor to create a stable high-voltage DC rail (approx. 300V–310V DC) that powers the primary heating coil. chk-v9.04g circuit diagram
The CHK-V9.04G schematic is structured around five primary interdependent functional blocks. Each block plays a distinct role in converting mains AC voltage into high-frequency electromagnetic energy. This is where the mains power (usually 110V or 220V) enters