Samsung ML 1710 - B/W Laser Printer Service Manual page 35

S U M M A RY OF PRO D U C T
4.5.2 SMPS(Switching Mode Power Supply)
It is the power source for the whole system. It is an independent module, so it is possible to use for com-
mon use. It is mounted at the bottom of the set.
It is consisted of the SMPS part, which supplies the DC power for driving the system, and the AC heater
control part, which supplies the power to fuser. SMPS has three outputting channels (3.3V, +5V and +24V).
There are three kinds of power, 120V exclusive (America), 220V exclusive (Europe), and 220V for china
(nations with instable power supply).
1) AC Input
- Inputting rated voltage : AC 220V ~ 240V AC 120V / AC 220V
- Inputting voltage fluctuating range : AC 198V ~ 264V AC 90V ~ 135V / AC 198V ~ 264V
- Rated frequency : 50/60 Hz
- Frequency fluctuating range : 47 ~ 63 Hz
- Inputting voltage : Under 4.0Arms/2.0Arms
(The state when lamp is off or rated voltage is inputted/outputted)
2) Rated Power Output
NO Item
1 Channel name
2 CONNECTOR PIN
3 Rated outputting voltage
4 Maximum outputting voltage
5 Peak loading voltage
6 Ripple noise voltage
7 Maximum output
8 Peak output
9 Uses
3) Consumption Power
NO Item
1 Stand-By
2 PRINTING
3 Sleep-Mode
4) Length of Power Cord :
5) Power Switch :
Use
Training Manual
4-18
CH1
+3.3V
CON 3
3.3V PIN: 3, 4
GND PIN: 5, 6
3.3V ± 5%
(3.2 ~ 3.4V)
1.0 A
1.5 A
100mVp-p
3.3W
4.95W
Logic part
CH1 CH2
(+3.3V) (+5V)
1.0 A 0.07A
1.0 A 0.14A
0.8A 0.01A
1830 ± 50mm
CH2 CH3
+5V +24.0V
CON3 CON 3
5V PIN : 8 24V PIN: 11, 12, 13
GND PIN: 7 GND : 9. 10
+5V ± 5% +24V ± 10%
(4.75 ~ 5.25V) (21.6 ~ 26.4V)
0.14A 2.0 A
0.14A 2.0 A
100mVp-p 500mVp-p
0.35W 48W
0.7W 60W
LSU LD Main Motor
HVPS
Solenoid
Fan
CH3
(+24V)
0.4 A
2.0 A
0.4A
Remark
1ms
1ms
System
AVG : 55 Wh
AVG : 250 Wh
AVG : 10 Wh
Samsung Electronics