Jymc220bi Schematic 2021 (TOP – 2027)

The SCRs and power diodes dissipate massive amounts of heat to the aluminum backplate. When replacing them, always clean off the old thermal compound and apply a fresh, even layer of silicone thermal paste.

Caps the absolute upper voltage ceiling (adjusted to ensure output does not exceed 180VDC at full dial articulation). jymc220bi schematic 2021