Xerox Phaser 3450 Service Manual page 24

Summary of Product
4.3.2 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 common use. It is
mounted at the bottom of the set.
It consists of the SMPS part, which supplies the DC power for driving the system, and the AC heater control part, which
supplies the power for 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 insta-
ble power supply).
>>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 5.0Arms/2.5Arms
>>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
>>Consumption Power
NO Item
1 Stand-By
2 PRINTING
3 Sleep-Mode
>>Length of Power Cord : 1830 ± 50mm
>>Power Switch : Use
Service Manual
4-12
CH1
+3.3V
CON 3
3.3V PIN : 12, 14
GND PIN : 16, 18
3.3V ± 5%
(3.2 ~ 3.4V)
1.5 A
1.5 A
200mVp-p
5 W
5 W
CH1 CH2
(+3.3V) (+5V)
0.6 A 0.07 A
1.0 A 0.14 A
0.4 A 0.01 A
CH2 CH3
+5V +24.0V
CON 3 CON 3
5V PIN : 8 24V PIN : 2, 4, 6
GND PIN : 7 GND : 7, 8, 10
+5V ± 5% +24V ± 5%, -5%
(4.75 ~ 5.25V) (21.6 ~ 26.4V)
0.5 A 0.5 A
0.5 A 0.5 A
100mVp-p 500mVp-p
2.5 W 84 W
2.5 W 84 W
CH3
(+24V)
0.4 A
2.0 A
0.4 A
Remark
1ms
1ms
System
AVG : 100 Wh
AVG : 350 Wh
AVG : 15 Wh