CHAPTER 2
2 - 3
COPYRIGHT
2000 CANON INC. CANOSCAN N650U/N656U/N1220U REV.0 JUNE 2000 PRINTED IN JAPAN (IMPRIME AU JAPON)
Figure 2-3
J3-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
Contact image sensor
Vbus
D-
D+
GND
J1-1
-2
-3
-4
To host computer
Drive motor drive signal
CS1
HPSEN
GND
M1
Drive motor
Vob
Misc6
GND
Vcis
Vref
TR
PHI1
Vled
BEN
GEN
REN
GND
"L" when start button was pressed
"H" when scanning unit is in home position
Start
button
Home
position
sensor
Q4
S1
Main PCB
J1-1
-2
-3
-4
-5
-6
-7
-8
GND
+5V
GND
D-
D+
GND
+5V
+5V
J2-1
-2
-3
-4
-5
-6
-7
-8
PA+
PB-
PB+
PA-
J2-1
-2
-3
-4
SCANSW
GND
USB connector PCB
C. Main PCB Input and Output