Sharp XE-A203 Service Manual - Page 20

Sd Card Circuit

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XE-A203U/XE-A203A CIRCUIT DIAGRAM AND PWB LAYOUT - 18 - 8 7 6 5 4 3 SD CARD CIRCUIT S:1pin VCC3 VCC3 D:2,3,4,5pin 3 5 G:6pin 1 2 4 1 14Pin : VCC3 + C66 1 6 7Pin : GND 100uF/50V + C56 D VCC3 2 Q9 HAT1089C 1uF/50V VCC 2 1 /SD_POW 1 /SD_CS 14 1 IC17A 1 /SD_POW 2 3 7 74LV125 C58 100pF R109 10K R110 51 R104 100K R111 10K R112 10K R113 100K R114 100K R115 100K R116 100K R117 100K C 1 /SD_POW 1 SD_TXD 1 /SD_POW B 1 SD_CLK A VCC3 NOT INSTALL IC17B C59 100pF 1 /SD_CD 1 /SD_WP NOT INSTALL R118 33 R119 33 C64 1000pF C65 1000pF 14 4 7 5 6 7 74LV125 C60 100pF VCC3 NOT INSTALL 13 14 IC17D 12 11 74LV125 7 VCC3 1 SD_RXD VCC3 C61 0.1uF 10 14 IC17C 9 8 74LV125 IC16E 14 14 7Pin : GND VCC 14Pin : VCC IC16F 10 11 12 13 C62 100pF 7 74HCT04 7 74HCT04 NOT INSTALL SD Card Pin Layout #12 WP #11 COMMON #8 #7 #6 #5 #4 #3 #2 #1 #9 #10 CD GND VCC C63 0.1uF #13 8 7 6 5 4 3 2 C57 1uF CN9 1 CS 2 3 4 5 6 7 8 9 10 11 12 13 DI VSS VDD SCLK VSS2 DO RSV RSV CD SW WP GND ALPS SCDA2A0300 2 1 4/4 14 IC16A 1 2 D 74HCT04 14 7 IC16B 3 4 74HCT04 14 7 IC16C 5 6 74HCT04 14 7 IC16D C 9 8 74HCT04 7 B A 1

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XE-A203U/XE-A203A
CIRCUIT DIAGRAM AND PWB LAYOUT
– 18 –
#9
#2
14Pin : VCC
#4
#3
7Pin : GND
G:6pin
#7
14Pin : VCC3
#10
#13
#5
#8
D:2,3,4,5pin
7Pin : GND
S:1pin
#1
#11
#6
SD Card Pin Layout
#12
WP
GND
COMMON
CD
NOT INSTALL
NOT INSTALL
NOT INSTALL
NOT INSTALL
/SD_POW
1
SD_RXD
1
/SD_WP
1
/SD_CS
1
/SD_CD
1
SD_TXD
1
SD_CLK
1
/SD_POW
1
/SD_POW
1
/SD_POW
1
VCC
VCC3
VCC3
VCC3
VCC
VCC3
VCC
VCC3
VCC3
VCC3
IC16C
74HCT04
5
6
14
7
C63
0.1uF
+
C56
1uF/50V
1
2
IC16A
74HCT04
1
2
14
7
Q9
HAT1089C
6
2
1
3
4
5
R111
10K
IC16D
74HCT04
9
8
14
7
R112
10K
C57
1uF
C61
0.1uF
IC17B
74LV125
5
6
14
4
7
R119
33
R104
100K
C60
100pF
R117
100K
C62
100pF
+
C66
100uF/50V
1
2
IC17A
74LV125
2
3
14
1
7
IC16B
74HCT04
3
4
14
7
R109
10K
C64
1000pF
C59
100pF
R113
100K
IC17C
74LV125
9
8
14
10
7
IC16E
74HCT04
11
10
14
7
IC16F
74HCT04
13
12
14
7
R116
100K
C65
1000pF
R110
51
R118
33
C58
100pF
IC17D
74LV125
12
11
14
13
7
R114
100K
CN9
ALPS SCDA2A0300
1
2
3
4
5
6
7
8
9
10
11
12
13
CS
DI
VSS
VDD
SCLK
VSS2
DO
RSV
RSV
CD
SW
WP
GND
R115
100K
A
B
C
D
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
D
C
B
A
4/4
SD CARD CIRCUIT