Service manual

A - 2
COPYRIGHT © 2001 CANON INC. CANOSCAN D1230U/D2400U REV.0 MARCH 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
II. GENERAL CIRCUIT DIAGRAM (CanoScan D2400U)
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1234
Vbus
D-
D+
GND
LAMP_GND
LAMP_GND
12V_LAMP
12V_LAMP
+18VP
+18VP
C-DGND
PHI1
PHI2
PHI3
+12V_VAROS
ASIC_VAROS
AGND
CCD-SHB
CLB
CCD-SHG
RB
CCD-SHR
VCC
C-DGND
AGND
C-DGND
AGND
CCD_B
AGND
CCD_G
AGND
CCD_R
22
XPA XPAGND FAU_DET VCC IRLED XPAGND XPAGND XPAGND
123
VCC
LED
HOTKEY0
1234
OUT1B
OUT1A
OUT2A
OUT2B
JP9
J1
JP1
Main PCB
Button PCB
JP2
Drive
Motor
JP8
12
+12V
GND
J2
8765 4 3 2 1
8765 4 3 2 1
FAU-S13
Scanning unit