A
B
C
D
E
G
2
F
1
3
4
5
6
7
8
9
10
MAIN BOARD CIRCUIT DIAGRAM
(SD CARD CIRCUIT DIAGRAM)
H
GND
GND
GND
GND
GND
GND
SD3V3
GND
GND
AVCC
GND
$$$283
DV33
SD-3V3
JS508
MSD019(3 IN 1)(P7050)
22
21
20
19
18
17
16
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
R603 NC
+
C614
10U/16V
R609 43K
R615 43K
R614 43K
C600
100N
+
C605
10U/16V
R628
43K
R605 43K
R612 1K
R604
1M
R611 43K
R624
43K
C619
10P
R616 33
L601
601H
L602
601H
R617 10
R620 390
R613 43K
R618 33
R619 10
R622
43K
C620
10P
R601
43K
R600 NC
R607 43K
R608 43K
R630
0
C618
100N
R621
43K
N602
USB6220 CHIP
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
29
30
31
32
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
N601
?
5
6
7
8
1
2
3
4
C603
10P
R606 43K
C604
10P
R626
43K
R610 43K
R623
43K
R629
0
R429
10K
R627
43K
R430
10K
G600
24M
R625
43K
C606
10P
C607
100N
C608
100N
C609
100N
C610
100N
C611
100N
C601
100N
R602
43K
C612
100N
USBM
USBP