Service manual

A - 4
COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MARCH 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
ASIC
IX1 IOX2 REST NSTROBE SYSBUS7 GND SYSBUS6 SYSBUS5 SYSBUS4 SYSBUS3 SYSBUS2 SYSBUS1 SYSBUS0 NACK BUSY PERROR GND SEL NAUTOFD NFAULT NSELIN PLLTEST MT_HOME OP13 OP12 OP11 OP10 OP9 OP8 OP7 OP6 VCC VAR O S MCLK MRST VSMP SDI SCK GND SEN
CLMP
SDO
R_TG
G_TG
VCC
B_TG
PHI1
PHI2
GND
PHI3
RB
VCC
CLB
PENANG-TAHITI
CANARY
IRLED
MT_STRB
HOTKEY4
HOTKEY3
LED
HOTKEY0
PLLVCCA
GND
PLLCPO
PLLGNDA
PHASE1
PHASE2
VCC
I01
I11
GND
I02
I12
VCC
Y1
Y2
GND
S_DBUS15
S_DBUS14
S_DBUS13
LAMP
HOTKEY1 HOTKEY2
SNRAS
SNWE
CKE VCC
LDQM UDQM
BS1 BS0
S_ABUS0
GND
S_ABUS1 S_ABUS2 S_ABUS3 S_ABUS4 S_ABUS5 S_ABUS6 S_ABUS7 S_ABUS8
VCC
S_ABUS9
S_ABUS10 S_ABUS11
S_DBUS0 S_DBUS1 S_DBUS2
GND
S_DBUS3 S_DBUS4 S_DBUS5 S_DBUS6 S_DBUS7
VCC
S_DBUS8 S_DBUS9
S_DBUS10 S_DBUS11 S_DBUS12
VCC
NUCAS
NLCAS
NRAS
NOE
NWE
D_ABUS0
GND
D_ABUS1
D_ABUS2
D_ABUS3
D_ABUS4
D_ABUS5
D_ABUS6
D_ABUS7
VCC
D_ABUS8
D_DBUS0
D_DBUS1
D_DBUS2
D_DBUS3
D_DBUS4
GND
D_DBUS5
D_DBUS6
D_DBUS7
D_DBUS8
D_DBUS9
D_DBUS10
D_DBUS11
VCC
D_DBUS12
D_DBUS13
D_DBUS14
D_DBUS15
SDRAMC1
SNCS
GND
SNCAS
XPA
S_DBUS8 S_DBUS10 S_DBUS9 S_DBUS7 S_DBUS11 S_DBUS6 S_DBUS5 S_DBUS4 S_DBUS12 S_DBUS3 S_DBUS2 S_DBUS1 S_DBUS0 S_ABUS10 S_ABUS9 S_ABUS11 S_ABUS7 S_ABUS6 S_ABUS3 S_ABUS8 S_ABUS5 S_ABUS4 S_ABUS1 S_ABUS2 S_ABUS0 BA0 BA1 S_nRAS WE CKE LDQM UDQM
120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 099 098 097 096 095 094 093 092 091 090 089 088 087 086 085 084 083 082 081
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
SYSBUS6 SYSBUS5 SYSBUS4 SYSBUS7 SYSBUS0 SYSBUS1 SYSBUS2
BUSY
SYSBUS3
U19
160
159
158
157
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
DGND
nSELIN
OP13 OP12 OP11
OP8
SCK
CLMP
SDO
SDI
SEN
OP6
OP10
OP9 OP7
RP10
1 3 5 7
RP12
1 3 5 7
C161
DGND
LAMP
FAU_DET
R113
EL29 EL30 EL31 EL32
DGND
DGND
Y1
Y2
S_DBUS14
S_DBUS15
S_DBUS13
I12 I01 I11 I02
C172
C171
+
R116
EL14
DGND
DGND
PHASE2
PHASE1
EL15
C176
TP1
1
C175
mt_strb
ASIC_VCC
HOTKEY0
LED
C174
R115
ASIC_VCC
C173
PHI2
CLB
RB
PHI3
2 4 6 8
C165
C166
C164C163
2 4 6 8
ASIC_VCC
DGND
DGND
C151
C162
+
C153
R112
C152
EL33
EL34
EL35
C159
C160
ASIC_VCC
DGND
DGND
ASIC_VCC
ASIC_VCC
DGND
nSTROBE
ASIC_CLK
nACK
nAUTOFD
R120
RP3
1
2
3
4
5
6
7
8
RP1
12
34
56
78
RP2
12
34
56
78
C154
C156
RP6
12
34
56
78
C157
R114
RP5
12
34
56
78
C155
EL37
DGND
ASIC_VCC
DGND
FAU_KEY
T_DBUS4
T_nRAS
T_DBUS11
T_nUCAS
T_DBUS7
T_ABUS8
S_nCAS
T_DBUS14
T_nOE
T_ABUS0
T_DBUS13
T_ABUS3
T_DBUS10
T_ABUS1
T_ABUS5
XPA
T_DBUS2
T_DBUS5
T_DBUS3
T_ABUS4
T_nLCAS
T_ABUS2
T_DBUS9
T_DBUS0
T_DBUS15
T_DBUS6
T_ABUS6
T_ABUS7
CLK
CS
T_DBUS12
T_DBUS1
T_DBUS8
T_nWE
5
DGND
ASIC_VCC
DGND
EL15
EL14
PLLVCC
PLLGND
C184
C183
ASIC_VAROS
MCLK
VSMP
MTATHOME
DGND
DGND
DGND
C188
C187
C178
EL 16
R77
PHI1
CCD_SHG
CCD_SHB
CCD_SHR
C168 C167
C170 C169
DGND
R58
R65
R73
R75
R54 R55 R56 R57