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©
1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
E. COMPOSITE POWER SUPPLY CIRCUIT DIAGRAM
Composite Power Supply PCB (1/6)
1/6
C2
++ +
+
+
+
+
+
COMP
3
2
4
1
7
6
5
8
1
5
4
2
8
9
15
9
8
7
6
11
18
17
2
3
1
4
1
2
3
4
5
1
2
2
1
12
3
2
1
4
5
1
3
2
HEAT-PROT
-BATT
-BATT
VCC-PRIN
COLD-LINE
HOT-LINE
VREF-U1
OSC-U1
+24VSEC
+30VSEC
VFEEBBK
-BATT
VCC-PRIN
+BATT
C7
C8 C9
C3
C4 C5 C6
C1
C11
C12
C13
C135
C14
C141
C20
C19
C140
C136
C15
C16
C17
C18
D8
D6
C10
R207
R19
R10
R9
R8
R7
R11 R12
R14
R15
R17 R224
R220
R223
R46
Q53
R222
R221
R21 R20
R22
R23
R5
R3
R4
R2
R1
T2
U1
T1
HOT
Q51
Q52
Q54
Q6
D89
D87
D86
D10
D88
ZD11
D11
D77
D9
D90
Q5
9
D85
D7
D1
D84
D3D2
D5D4
RV1
L1
F1
F2
F3
J1
2
3
K1
Q7
D12
24V
1
W2
W3
W15
W4
W1
W5
W6
Q1
Q2
VAUX
L2
VFS
IS
OSC
VREF
VI
OUT
GNS
VAUX
-BATT
HOT
WHITE
BLACK
OVERC