Canon PowerShot S400 Service Manual page 121

2.4 MAIN PCB ASS'Y (3/4)
DATA COMMUNICATION
BATTERY BOX UNIT
RLS FPC
BAT401
Button BATTERY
LED402
LED403
LED401
SW402
SW403
TELE
WIDE
BATTERY BOX
FU401
To
MAIN PCB ASS'Y
01 APRIL, 2003
MAIN PCB ASS'Y (3/4)
OPERATION KEY UNIT
BATTERY
CN1002
Open Detect
SW501 EX27
1
BTOP
SW502 SET Button EX16
10 SET
SW503 MENU Button EX17
9 MENU
SW504 DISP Button EX28
8 DISP
SW505 EXP/WB/ERASE EX29
5 EXP/WB/ERASE
DOWN Button EX19
SW506
6 DOWN
SW507 RIGHT Button EX21
4 RIGHT
SW508 UP Button EX18
2 UP
SW509 LEFT Button EX20
3 LEFT
7 SCAN
(OPR FPC)
CN1003
15 15 VBATTEP
VCC1
3 3 VCC1
YELLOW
4 4 LED_MACRO
ORANGE
5 5 LED_ORANGE
GREEN
6 6 LED_GREEN
YELLOW
7 7 LED_POWER
CFOPEN EX26
14 14 CFOP
Release SW1 EX25
17 17
SW1
Release SW2 EX24
16 16 SW2
EX22
19 TELE
19
EX23
18 18 WIDE
SW404
EX48
MODE0
9 9 MODE0
11 11 SCON
10 10 SCAN
EX49
13 13 DIAL0
EX50
12 12 DIAL1
POWER
8 8
POWER
SW401
VDD3
1 1 VDD3
2 2 LED_BL
LED501
POWER
BACK LIGHT UNIT
L201
VBATT
CN201
1 EFCHG
From
2 VCHGLVL
MAIN PCB ASS'Y
3 VCHGLVL
4 STSP
EXPORT
IC1012
16M SDRAM
K4S283234F-MN1H
A11
BA0
BA1
VBATTMP
AIN6 DQ0
DQ31
4
3
LED_MACRO
2
6
DQM0
5
ı
LED_ORANGE
1
Q1007 DQM3
LED Drive
/WE
XP6213
4
/CAS
3
LED_GREEN
/RAS
2
6 /CS
5
VCC1SO
CLK
LED_POWER
1
Q1020
CKE
VDD1-4
LED Drive
VDDQ1-10
XP6213
4
3
SCON
2
6
5
SCAN
1
POWER
Q1004
ED Drive
XP6213
LED_BL
Q1010
2PC4617
EX30,31
VCC1
VCC1_CF
Q1015
Q1005
CF POWER SW
Level Shift uPA1912TE
4 1,2
XP03311
5,6
3
3
2
Q1017,Q1016
1 4 PDTC144EE
EX51
Q1018
CFPCONT
2PC4617
Q1016-Q1018 : CF POWER CONT
T201
Q202 EF Charge
2SB1197K
2
1
Q201 SW
DTC144EE
3
Q203
OSC
2SC4672
VCHGLVL
STSP
IC1011 (3/3)
Digital Signal Processing IC
T8F80XB-0002
CN1005
CF_A_0-2 A00
PCADR_0
ı
A02
PCADR_2 3
A0
A03
SDADR_0
ı
ı
12
SDADR_11
CF_A_3-10
P1_0
ı
SDBS_O P1_7
8
SDBS_1
2
A10
SDDT_0 D00
ı ı
32
SDDT_31
SDDQM_0
ı
4
SDDQM_3 CF_D_0-15
PCDT_0
K8
ı
SDWE
16
K7 PCDT_15
SDCAS
J9
SDRAS
J8
SDCS_0
J1 INT P 2
SDCLK
J2 D15
SDCKE
NPC RD /IORD
NPC WR /IOWR
PCCE1
/CE1
PCCE2 /CE2
PCRDY /WAIT
PCIRQ
IREQ
PCIOIS /IOIS16
VXIN
X1002 P0-5 /WE
27MHz
P0-1
RESET
VXOUT
P0-0 /REG
P0-4
/OE
EX30
/CD1
EX31
/CD2
VCC1
D203 D204
5
Q204
XE Drive
CY25AAJ-8F
T202
4
ST UNIT
CF UNIT
13 13
3
15 15
29 29
31 31
CN602
33 33
35 35
20
A00
8
37 37 ı
11 14
41 41
43 43 12
ı
45 45
10
49 49
A10
8
11 11
D00 21
9 9
ı
7 7 23
27 27
2
25 25 ı
23 23 6
CF Card
21 21 47
16 ı
19 19
16
49
8 8
27
6 6
ı
4 4
D15
31
26 26
/IORD 34
24 24
/IOWR 35
22 22
20 20 7
/CE1
18 18
/CE2 32
46 46
/WAIT 42
44 44
IREQ 37
17 17
/IOIS16 24
50 50
/WE 36
30 30
15
RESET 41
40 40
/REG 44
5 5
9
/OE
42 42
/CD1 26
32 32
/CD2 25
14 14
13
VCC
47 47
38
28 28
3 3
39 38
38 39
FLASH
C CANON INC., 2003