Power Supply Pcb; Low-Voltage Power Supply Circuit; 1 ] Low-Voltage Power Supply Pcb - Brother IntelliFax-4750 Service Manual

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3.6

Power Supply PCB

[ 1 ] Low-voltage power supply PCB

The low-voltage power supply uses the switching regulation system to generate DC power (+5V
and +24V) from a commercial AC power supply for the driver circuits. The +5V source is fed to
the logic, control panel, sensors, CIS unit, etc. The 24V source is fed to the motors, solenoid, fan,
and high-voltage power supply PCB.
The low-voltage power supply also feeds AC power to the heater of the heat-fixing unit.

Low-voltage Power Supply Circuit

III - 20

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