4-35
4
Power supply
Power supply
The fan-cooled 155 watt power supply used in the Print Controller X4(AR-PE1) has an
automatic input voltage selection circuit. The input voltages are 100-240VAC.
Checking voltages
You can check power supply functionality using a multimeter at the following locations:
• Connector that supplies power to the motherboard
• Connector that supplies power to the CD-ROM drive
• Connector for future options
Test voltages on the cable connectors on the power supply, not on the board or
component connectors. Table 4-1 describes the Print Controller X4(AR-PE1) power
connectors.
T
ABLE
4-1
Print Controller X4(AR-PE1) power connectors
Connector
Pins
Color
Voltage
1, 2, 11
Green
3.3V
3, 5, 7, 13, 15, 16, 17
Black
common
18
White
-5V (not connected)
4, 6, 19, 20
Red
+5V
10
Yellow
+12V
12
Blue
-12V
14
––
not connected
8
––
Supply Power OK
9
Red
+5VSB
1
Yellow
+12V
2
Black
common
3
Black
common
4
Red
+5V
1
Yellow
+12V
2
Black
common
3
Black
common
4
Red
+5V
20-pin Motherboard
Large 4-pin
CD-ROM drive
Large 4-pin
HDD