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©
1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
A–22
Composite Power Supply PCB (2/6)
U2B
L4
-BATT
24V
+
5FBT
+
312
9
14
+
-
C40
8
+
+
+
+
24V
24V
36V
+
5FBT
+
24V
1
2
1
2
4
3
1
2
4
3
3
312
2
+
-
5
312
1
+
-
7
6
4
312
+
-
13
11
10
OVERC
MRES
+24VSEC
+30VSEC
VFEEDBK
-BATT
VREF-UI
OSC-UI
FAN-ON
CP-DATAO
C39
C50
C43
C49
C44
C46C45C48
C47
C42C41
C36
C22
C28
C29
C33
C25
C26
C27
C23
C24
C34
C32
C37
C35
C31
C30
R48
R49
R50
R209
R53
R54
R56
R55
ZD1
ZD2
ZD3
D19
D20
D18
D16
D17
D14
D22
Q10
Q9
Q11
Q8
R208
R44R43
R39R38
R34
R36 R37
R28R27
24V
R26R25
R24
R32R31
R30
R29
R33
R35
R47
R42
R45
R41R40
R52
R51
R58
R61
R60
R57
R210
R211
R59
R63
R62
24V
36V
24V
36V
24V
24V
U6
U20
U5
U2C
U2A
L3
D13
D15
D21
U4
U3
U2D
32
2
1
1
3
4
5
6
2
13
2
13
5
6
11
10
2
3
14
15
7
2
18
8
17
13
1
9
3
4
12
20
10
14
16
15
5
6
11
19
FEED IN
OUT
RES.OUT
N.C.
RES.IN
SYNC
VSTART
VS
N.C.
GND
GND
GND
GND
C.DOOT
COMP
R.DLY
S.S.
COSC
ROSC
VREF
C139