APW8 Power Supply Maintenance Guide
9
Physical picture, there will be small differences in product versions, but the principle is
similar.
2.21 AC inputs EMI to PFC circuit schematic, focus on measuring whether F1 insurance, U2
rectifier bridge, Q4, D7, D5, D6 are damaged.
整流桥:Rectifier bridge
AC 输入 EMI:AC input to EMI
开关防浪涌电阻:Switch anti-surge resistor
继电器:Relay
PFC 开关 MOS:PFC switch MOS
PFC 驱动:PFC driver