LeCroy WaveSurfer 400 Series Service Manual page 37

MAIN BOARD
Primary
3CN1 PFC BOARD
5CN2 PFC BOARD
Secondary
Reference
Supplied BOARD
CN9 EXT BOARD
5CN1 EXT BOARD
CN2 Main Board
CN3 Main Board
5267-3A 1
2
3
5566-2A 1
2
Connector Pin#
5566-2A 1
2
5267-3A 1
2
3
51067 1,2
3,6
4,5
7,8
51067 1
2,4
3
5
18.5VDC
Primary Return
Triac Bias
385VDC
Primary Return
Voltage /Function
24V
GND
24V
N.C
GND
+5.0V
GND
-5.0V
+2.5V
+12.0V
GND
+9.0V
-12.0V
Comment
Bus Voltage
To printer
Theory of Operation 4-19