Samsung ML-1645

Service Manual
Product spec and feature
2-20
Samsung Electronics
2.2.2.5 SMPS board (Switching Module Power Supply)
The SMPS supplies DC Power to the System.
It takes 110V/220V and outputs the +5V, +24V to supply the power to the main board and other board. It is
consisted of the AMPS part, which supplies the DC power for driving the system, and the AC heater control part,
which supplies the power to fuser. SMPS has two output channels. Which are 5V and +24V
Pin No Pin Name
1 +24VS2
2 +24V
3 +24VS1
4 +24VS1
5 +5V
6 DGND
7 DGND
8 P_REGI
9 FUSER ON
<CON2>
Pin Signal
CON1(Inlet)
Micro Switch
CON2
(Output)
Exit Sensor
F1(Fuse/250V, 5A)
Power Switch