Canon CANOSCAN D1230 series Service Manual page 28

2. CanoScan D2400U
AC Adapter
Scanning Unit
Power
LED
Start
Button
Button PCB
Home Position
Sensor
Drive Motor
©
COPYRIGHT 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MAR. 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Main PCB
J2-1
+12V
-2
GND
JP1-1
LAMP_GND
-2
LAMP_GND
-3
12V_LAMP
-4
12V_LAMP
-5
+18VP
-6
+18VP
-7
C-DGND
-8
PHI1
-9
PHI2
-10
PHI3
-11
+12V_VAROS
-12
ASIC_VAROS
-13
AGND
-14
CCD-SHB
-15
CLB
-16
CCD-SHG
-17
RB
-18
CCD-SHR
-19
VCC
-20
C-DGND
-21
AGND
-22
C-DGND
-23
AGND
-24
CCD_B
-25
AGND
-26
CCD_G
-27
AGND
-28
CCD_R
JP2-1
VCC
-2
LED "H" when power LED is ON
-3
HOTKEY0 "H" when Start button is pressed
"H" when scanning unit is in
home position
JP8-1
OUT1B
-2
OUT1A
Drive motor drive signal
-3
OUT2A
-4
OUT2B
Figure 2-4
CHAPTER 2
XPA J1-1
XPAGND -2
FAU_DET -3
VCC -4
IRLED -5
To FAU
XPAGND -6
XPAGND -7
XPAGND -8
Vbus JP9-1
To Host
D- -2
Computer
D+ -3
GND -4
2 - 5