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COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MARCH 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
IV. MAIN PCB CIRCUIT DIAGRAM (CanoScan D2400U)
D5
F1
C80
C76
+
T1
C78
C77
+
J2
C79
+12V
+12VM
PS1
12
PS2
1
2
R76
+12V
MO
T
ORGND
LAMPGND
PWRGND
+12VL
+12V_V
AR
OS
C87
C186
PS4
1
2
C133
U12
VI
GND
VO
EL9
PS3
12
C117
+
U17
VI
GND
VO
C88
C86
+
C132
DGND
A
GND
+12V
A
VCC
VCC
PWRGND
DGND
C81
C83
R52
U13
SW_C
1
SW_E
2
TC
3
GND
4
INV
5
VCC
6
IS
7
D_C
8
R49
L5
R50
C89
D6
R53
C84
+
C85
C82
+
U14A
12
14
7
R51
R74
PWRGND
PWRGND
PWRGND
ASIC_VCC
PWRGND
+12V
PWRGND
VCC3V
R61
R62
C98
C100
+
C101
R63
R64
U14B
3
4
14
7
C102
C97
R60
D8
C103
R59
C96
+
L7
Q11
U14C
5
6
14
7
C99
+
PWRGND
PWRGND
PWRGND
+18VP
DGND
+12V
VCC
PWRGND
VCC
DGND
PWRGND
R6
R7
Q13
PWRGND