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CHAPTER 2
2 - 4
COPYRIGHT 2003 CANON INC. CANOSCAN 9900F REV.0 FEB. 2003 PRINTED IN JAPAN (IMPRIME AU JAPON)
JP6-1
-2
-3
-4
Power
LED
H o m e P o s i t i o n
S e n s o r
"H" when scanning unit is in
home position
Drive motor drive signal
JP2-1
-2
-3
-4
-5
-6
-7
-8
Scanner
button
Button PCB
HOTKEY0
HOTKEY1
HOTKEY2
HOTKEY3
LED
DGND
DGND
PWRSW
+24V
+24V
+24V
NC
GND
"H" when power LED is ON
Vbus
D-
D+
GND
J1-1
-2
-3
-4
-5
-6
-7
-8
XPA
FAU_LED
FAU_DET
NC
LMP_PWR
XPAGND
NC
XPAGND
AC Adapter
JP1-1
-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
LAMP_GND
LAMP_GND
LAMP_PWR
LAMP_PWR
CCD_PWR
CCD_PWR
AGND
CCD_CK1
CCD_CK2
AGND
VAROS_PWR
AGND
ASIC_VAROS
B_TG
CLB
G_TG
RB
R_TG
VCC
AGND
MTATHOME
AGND
AGND
OUT_B
AGND
OUT_G
AGND
OUT_R
OUT1B
OUT1A
OUT2A
OUT2B
JP9-1
-2
-3
-4
To Film Scanning
Unit
To Host
Computer
J2-1
-2
-3
-4
-5
Main PCB
Scanning Unit
Drive motor
COPY
SCAN
FILE
"H" when Scanner button is
pressed
Power Switch
VP
VG
TPBN
TPB
TPAN
TPA
JP9-1
-2
-3
-4
-5
-6
To Host
Computer
C. Main PCB Input and Output
Figure 2-3