Xerox Phaser 8400 Service Manual page 37

D
r
u
m
H
8
AC Line AC Neutral
Low
Switcher
Service Manual
F3
F2
P
r
e
h
t
H
9
Interface
+3.3 V
H13
H12
H11
H10
H9
uProcessor
H8
+15 V
H4
-15 V
H3
+50 V H2
-50 V
H1
S1
I I I
n n n
k k k
4 3 2
H
1
3
H
1
2
H
1
1
Serial
Control
Vcc
Vss
AC Line
AC Neutral
r r
I
e e
n
js
s s
k
r
2 1
1
H
1
0
H
4
H
3
REG
Line
Gnd Ref
Neutral
js
I
H
2
H
1
s8400-164
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