COPYRIGHT© 2000 CANON INC.
2000 2000 2000
ColorPASS-Z40e/Z20e REV.0 AUG. 2000
CHAPTER 4 DISASSEMBLY/ASSEMBLY
4-31
5.9 Power Supply
The fan-cooled 155 watt power supply used in the ColorPASS has an automatic input
voltage selection circuit. The input voltages are 100-240VAC.
5.9.1 Checking Voltages
You can check power supply functionality using a multimeter at the following locations:
• Connector that supplies power to the motherboard
• Connector for future options
Test voltages on the cable connectors on the power supply, not on the board or component
connectors. T04-509-01 describes the ColorPASS power connectors.
T04-509-01 ColorPASS 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
1
Yellow
+12V
2
Black
common
3
Black
common
4
Red
+5V
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
HDD
Large 4-pin
(not used)
Large 4-pin
(not used)
Large 4-pin
(not used)
Small 4-pin
(not used)