APPENDIX
A - 2
COPYRIGHT
2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
II. GENERAL CIRCUIT DIAGRAM (CanoScan N1220U)
VO
B
MISC6
GND
VCIS
VREF
TR
PHI1
VLED
BEN
GEN
REN
GND
J3
CS1
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
GND
+5V
GND
D-
D+
GND
+5V
+5V
VB
US
D-
D+
GND
J2
J1
J1
Home
P
osition
Sensor
Star
t
Button
M1
432
1
J2
PA-
PB+
PB-
PA+
S1
Q4
Main
PCB
Contact
Image
Sensor
USB
Connector
PCB
Dr
iv
e
Motor