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5-2
2. Main PCB Bottom Diagram
STH-A225 PCB diagrams
AN301
ANT_STOPPER
AU101
C1
12
C1
19
C1
20
C1
21
C122
C1
23
C124
C1
25
C126
C127
C1
28
C129
C130
C1
31
C132
C133
C1
34
C1
35
C136
C1
37
C141
C142
C1
53
C1
55
C157
C158
C1
59
C160
C1
61
C162
C163
C164
C165
C1
71
C172
C1
73
C1
75
C176
C177
C178
C1
79
C180
C181
C2
01
C2
03
C2
04
C205
C2
06
C207
C208
C2
09
C210
C211
C215
C216
C2
17
C2
18
C219
C2
30
C2
31
C2
40
C2
41
C2
42
C244
C3
02
C3
03
C3
04
C3
05 C306
C3
09
C3
11
C3
12
C313
C3
14
C315
C316
C3
18
C3
20
C3
21
C3
25
C327
C3
33
C335
C337
C3
41
C3
44
C3
45
C349
C350
C3
52
C3
54
C3
58
C360
C364
C365
C3
66
C3
74
C375
C376
C3
77
C381
C4
53
C454
C4
72
C4
82
CN101
CN201
D101
D102
D103
D1
04
D105
D202
D2
03
D2
04
D2
05
F302
F304
F306
L1
03
L1
04
L105
L302
L305
L3
06
L307
L3
08
L311
L3
12
L3
14
L3
16
L3
31
L341
L343
L344
OSC301
Q102
Q103
Q201
Q202
Q203
Q204
Q205
Q301
R1
13
R1
14
R118
R1
19
R120
R121
R122
R123
R124
R125
R1
26
R127
R128
R132
R133
R134
R135
R136
R137
R1
38
R1
39
R140
R141
R144
R145
R201
R202
R206
R2
08
R2
09
R210
R211
R2
12
R213
R2
14
R2
15
R2
16
R2
17
R2
18
R2
19
R2
20
R2
21
R2
22
R2
23
R2
24
R2
25
R2
26
R2
27
R2
28
R229
R230
R231
R2
32
R233
R234
R239
R2
41
R244
R2
45
R2
46
R247
R248
R249
R2
50
R2
51
R252
R2
53
R2
54
R2
56
R2
57
R2
59
R260
R2
61
R2
62
R2
63
R2
64
R265
R266
R267
R268
R269
R270
R271
R275
R276
R2
78
R2
79
R2
80
R2
82
R3
03
R305
R306
R307
R3
08
R3
11
R3
13
R314
R3
15
R3
25
R3
26
R329
R3
30
R3
33
R342
R3
43
R376
R379
R3
83
R390
R391
R402
R4
05
R4
08
U104
U105
U106
U202
U203
U206
U208
U209
U301
U302
U311
U313
ZD101
ZD201
ZD202
ZD203
ZD
20
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