SmarTrunk Systems ST-9116C, Service Manual, Page: 37 / 67

7. ST-9116C MAIN BOARD SCHEMATIC
R242 47
R113 10K
Title
Size Document Number Rev
Date: Sheet of
DM-1120-12 C
ST-9116 R2.0 REF LAY OUT 2.0C
D
1 1 Monday , July 28, 2014
D4
RECEIV ER
C
SM
R
X
C
393
47pF
RS
4pF
C
SF
M
3VD
2
D
ET
C283
100nF
C384 47pF
RXC2
68nH
U27 BAS70
V
2
G
1
C
3
R209
39
P13
1
1
3VD2
R131
10K
3
1
2
C
106
1nF
DA1
TP10
1
3VRX
TP12
1
TP11
1
ED
IO8
MCCK
P17
1
1
R195
47K
R253 47
AUDIO
C
389
47pF
C
SV1
RW
+ C358
1000uF
C174
10nF
C
397
1nF
10pF
EM
OD
1
3VRX
U31
BAS70
V
2
G
1
C
3
R101
2K2
R156
10K
R190 680K
+
C131
10uF
12nH
RMOSI
C260 1uF
C130
100nF
R249 47
C259
10nF
+
C
113
10uF
R
232
1K
R154
4K7
RECEIV ER CLO CK
+
C122
47uF
Y 2
12.8Mhz
1 2
3 4
ED
IO3
C95
1nF
EAI1
IR
QE
C366
100nF
CSMT X
R245 47
R
231
47
3VRX
SW
12V
C98
100pF
C196 1nF
R80
100
R53
100
C214 1nF
EAI2
VBUS
C200 1nF
C3
1nF
C
SV2
RXCLK
C
381
100nF
+
C99
10uF
C276
1uF
D7
C275
100nF
R57
22K
C
BL
C282
1nF
C221
10uF
RX FILTER PO WER SU PPLY
C265 1uF
U15
NC
V
2
G
1
C
3
+8V
5VRX
R165 33K
C351
10nF
C27
1uF
R229 47
R153
33K
+
C352
10uF
R203
22
C354
1nF
IR
QM
R
X
C327
0.5pF
C355
10nF
MIC
U50
RT9167/50
Vin
1
GN
D
2
Sht
3
Vout
5
BP
4
C258
NC
RX M O D EM
R72 1K
C
247
10nF
C379
100nF
U23
AT23DF321
CS
1
SO
2
WP
3
GND
4
SI
5
SCK
6
HOLD
7
VCC
8
EM
OD
2
3V PRO CESSO R PO WER SU PPLY
3VP
3VP
LT
X
R82 1K
L18
100nH
SCK
R
108
NC
M EM O RIES
3VP
PBA
R
97
NC
3VP
MISO
U35
CMX-7141
SMOSI
1
SSCK
2
SMISO
3
SCS
4
BOOTEN1
5
BOOTEN2
6
DVSS
7
IRQN
8
VDEC
9
GPIOA
10
GPIOB
11
SYSC
LK1
13
D
VSS
14
T
XEN
A
15
D
ISC
16
D
ISC
F
B
17
ALT
18
ALT
F
B
19
MICFB
20
MIC
21
AVSS
22
M
OD
1
23
M
OD
2
24
VBIAS
25
AUDIO
26
ADC1
27
ADC2
28
ADC3
29
ADC4
30
AVDD
31
DAC1
32
DAC2
33
AVSS
34
DAC3
35
DAC4
36 D
VSS
37
VD
EC
38
XT
AL/
C
LK
39
XT
ALN
40
D
VD
D
41
M
OSI
42
M
ISO
43
SSOU
T
44
D
VSS
45
SC
K
46
SYSC
LK2
47
C
SN
48
AGND
49
MOSI
SCK
R
109
NC
3VA
MOSI
C
211
1nF
C347
0.5pF
3VP
3VP
C
210
10uF
R
98
NC
R163
47
MISO
RW
R65 1K
R
110
NC
U30
23K640
CS
1
SO
2
WP
3
GND
4
SI
5
SCK
6
HOLD
7
VCC
8
R
94
NC
C371
1uF
C222
1nF
MISO
RXD
C
372
10nF
CSFM
SCK
MOSI
R213
2K7
R86 1K
CSRM
R126
10K
AM
ISO
ASC
K
EMOD1
AM
OSI
R95
10K
R
237
1K
EDIO3
C209
102
R107
2K7
C206
10uF
C162
1uF
C237 1nF
+ C110
10uF
R125
10
6.8pF
VOL
C204
150pF
TX CO N TRO L
TX8V
C72
100nF
U
D
PF
Y 7
12M
1 2
3 4
C87
1nF
DCIN
U40
RJ-45
TX+
1
TX-
2
RX+
3
L1
4
L2
5
RX-
6
L4
8
R-
9
R+
10
L-
11
L+
12
L3
7
13
13
14
14
15
15
16
16
Q3
LML2244
1
3 2
TEMP
R39
100K
C
SM
R
X
C
250
1nF
R45
10K
P23
1
1
Q4
KRC102S
3
2
1
+8V
C
251
1nF
D
ET
U8
RDA1846
AVDD1
1
SCK
2
MOSI
3
AVDD2
4
XTAL1
5
XTAL2
6
MODE
7
CSR
8
AF
O
9
NC1
10
MIC
11
CC
12
AVD
D
3
13
NC2
14
RFIN
15
AVD
D
4
16
NC3
17
RFOUT
18
NC4
19
NC5
20
AVDD5
21
PABIAS
22
AVDD6
23
PDN
24
IO7
25
IO6
26
IO5
27
IO4
28
M
ISO
29
INT
30
SU
BD
31
SU
B
32
GND
33
D12
1SV323
C338
8pF
C263 100nF
L16
100nH
AF
SI
N
DISC
ER
ASE
TP31
1
TP33
1
TP32
1
10pF
DET
TP34
1
C239 47pF
D1
TP35
1
R170
47K
TP36
1
R210
47K
R181
10K
RXADJ
R129 100K
C
119
100nF
UDMF
AUDIO
3VD2
C
112
1nF
3V D IG ITA L PO WER SU PPLY
R
176
75
C256
1nF
+
C294
10uF
+8V
3VD1
3VRX
C314
1nF
C255
10uF
C230 47pF
R30 1K
C
118
1nF
C299
10nF
IR
QM
T
X
+
C295
10uF
+
C301
10uF
U45
HT7233
Vin
1
GN
D
2
Sht
3
Vout
5
BP
4
C
117
100nF
C313
1nF
UPRV
C369
1uF
R184 10
EMI1
C312
10nF
3VRX
D
ISC
SCK
TP49
1
TP50
1
TP54
1
U38
H1102
TD+
1
TDREF
2
TD-
3
NC1
4
NC2
5
RD+
6
RDREF
7
RD-
8
RX-
9
RXREF
10
RX+
11
NC3
12
NC4
13
TX-
14
TXREF
15
TX+
16
TP53
1
TP52
1
PSK
L20
1uH
C76
100nF
100pF
C115
22pF
C350
100nF
D5
C390 47pF
BT2
BATTERY
C
364
10nF
C
328
47pF
C223
1nF
C387 47pF
C
395
47pF
C385
47pF
TX RA D IO PO WER SU PPLY
+8V 3VTX
C
78
10nF
+
C79
10uF
U28 BAS70
V
2
G
1
C
3
R38
22
SW12V
+
C80
10uF
1pF
DAO2
U7
HT7233
Vin
1
GN
D
2
Sht
3
Vout
5
BP
4
D
A2
DAO1
C241
47pF
PBB
3VP
C399
47pF
C83
1nF
U33
SDCARD
CD/DAT3
1
CMD
2
VSS1
3
VDD
4
CLK
5
VSS2
6
DAT0
7
DAT1
8
DAT2
9
WP
10
CD
11
GN2
12
GN3
13
GN4
14
GN5
15
C82
10nF
R204
3K9
R
117
NC
3VP 3VP
TX232
P14
1
1
R
135
NC
J2
ANTENNA
1
2 3
R
136
NC
R
137
NC
TP1
1
TP3
1
R
138
NC
TP2
1
TP9
1
R
139
NC
TP7
1
TP5
1
C219 1nF
TP8
1
R
140
NC
TP4
1
Q7
LML2244
1
3
2
TP6
1
3VP 3VP
UDPF
MCCDA
3VP
C
BL
C203 1nF
P18
1
1
R
118
NC
3VP
C
228
1nF
Q11
2SK1829 1
3
2
R200
1K8
R201 220K
VBUS
R
119
NC
D14
MA2S11
1
2
R202
470K
1.
8V
R
ESD
MCDA1
R
120
NC
RMOSI
XC
2
MCCK
MCDA3
RX232
MCDA0
R
121
NC
FC
ED
IO7
MCDA2
R
122
NC
PBB
FAN
R90 1K
C4
1nF
150
U16
NC
V
2
G
1
C
3
ED
IO2
DISC
+
-
U9B
BA10358
5
6
7
+
-
U9A
BA10358
3
2
1
8
4
PO WER CO N TRO L
R79 1K
L14
100nH
R52 120K
C
248
1nF
C89
470pF
C367
100nF
C96 470pF
D5
1SS400GT2R
3VA
+8V
C242 1nF
EAI2
R64 1K
R43
47K
R40 47K PWCTRL
R42 150K
R
179
75
12nH
3VP
C84
10nF
R
XC
1
R48
220K
T
X8V
D6
BAR63
C81
1nF
C
D
SD
C
179
1nF
-
+
U4B
LM2904
5
6
7
8
4
R44
100K
C325 1nF
+8V
C90
1nF
C
91
4.
7nF
R182
2K2
R240 47
R41 220K
AFO
RVPW
TX8V
CSRX
C97 47nF
R50
220
C348 33pF
Q5
2SC3875
2
3
1
ED
IO4
C383 47pF
Y 3
12M
1 2
3 4
Q6
2SC3875
2
3
1
C73
1nF
R193
10
C69
1nF
ED
IO3
PWSET
R250 47
R55
47
+8V
EAO1
C70
1nF
R49
10K
C128
100nF
ED
IO2
D0
F
W
PW
ED
IO1
D2
C94
100nF
C68
1nF
C102
1nF
H
OOK
C71
1nF
EDIO2
R51
100K
3VD1
R
206
39
P24
1
1
M O D EM CLO CK
U
XT
AL
R246 47
P9
1
1
C373
470pF
R
230
47
EDIO7
R14
1K
4pF
R114
10K
L13
1uH
C183
1uF
C197 1nF
R116
10K
3VD2
C134
1nF
R103 1K
R106 1K
C176
NC
6.8pF
IR
QM
R
X
C177
NC
R2
470
C332
1nF
22K
VS1
IR
QM
T
X
EMI2
3VP
C
SV2
C378
100nF
R211
47K
R141 15K
BT1
BATTERY
C
396
1nF
M ICRO PH O N E
PWCTRL
R60
10K
Q8
KRC102S
2
3
1
MISO
C123
22pF
3VP
C323
1nF
C133
1nF
+
C309
10uF
+
C310
10uF
U29 BAS70
V
2
G
1
C
3
C322
1nF
13nH
10pF
+
C132
22uF
C212
100nF
R71
100
U1
ROE
1
1
2
2
3
3
4
4
5
5
6
6
C
329
1nF
3VA
P8
1
1
3VRX
C
336
0.
5pF
R5
47
FWPW
C207 1nF
C60
100nF
C55
1nF
UDM
R6
47
C
SR
M
C16
1nF
t
RT1
33tk
1
2
R
180
75
C6
100nF
C56
10nF
P15
1
1
ER
ES
C8
150pF
C
394
47pF
C391 47pF
12nH
C9
150pF
R
233
47
ER
ASE
C40 1uF
AFSIN
ASCK
ECS
R22
22K P19
1
1
HOOK
C41
NC
C178
6pF
C184
6pF
RX232
IRQE
ED
IO7
EM
OD
1
R20
100K
R177 1K
PBA
C382
47pF
C252 47pF
MOD1
C5
1nF
C380
100nF
3VP
EAI2
TP19
1
TP20
1
R77 1K
ERASE
DA1
TP21
1
R208
39
R
150
NC
BA CK LIG H T
C
180
1nF
ED
IO1
C62
100nF
R63 1K
3VP
Y 6
32768
C63
1nF
R
25
47K
U
PR
V
ED
IO6
VBL
C42
100nF
C43
1nF
PTT
AMISO
C44
NC
C14
150pF
EMOD2
RSCK
CSTX
Q10
BF1211
3
4
1
2
5.1pF
C12
NCatc
D3
R214 10K
UDP
VBUS
R
XD
UVSS
UID
UDM
TRA N SM ITTER
P27
1
1
C100 100pF
10pF
C45
NC
15nH
MCCDA
J8
USB
1
2
3
4
5
6
7
R13
22K
Q1
2SC5226
3
2
1
5VRX
3VA
10pF
TEMP
C13
10nF
U37
ATSAM3U
VDDANA
1
ADVREF
2
GNDANA
3
ADREF
4
PA22
5
PA30
6
PB3
7
PB4
8
VDDCORE
9
PA13
10
PA14
11
PA15
12
PA16
13
PA17
14
PB16
15
PB15
16
PA18
17
PA19
18
PA20
19
PA21
20
PA23
21
VDDIO1
22
PA24
23
PA25
24
PA26
25
PA0
26
PA1
27
PA2
28
PA3
29
PA4
30
PA5
31
PA6
32
PA7
33
VD
D
C
OR
E2
34
GN
D
1
35
VD
D
IO2
36
PA8
37
PA9
38
PA10
39
PA11
40
PA12
41
FWUP
42
ER
ASE
43
T
ST
44
VD
D
BU
45
GN
D
BU
46
N
R
ST
B
47
J
T
AGSEL
48
XOU
T
32
49
XI
N
32
50
TDI
51
VDDOUT
52
VDDIN
53
TDO
54
TMS
55
TCK
56
NRST
57
PB24
58
VDDCORE3
59
VDDIO3
60
GND2
61
PB23
62
PB22
63
PB21
64
PB20
65
PB19
66
PB18
67
PB17
68
PB14
69
PB10
70
PB9
71
GNDPLL
72
VDDPLL
73
XOUT
74
XIN
75
D
H
SD
P
76
D
H
SD
M
77
VBG
78
VD
D
U
T
M
I
79
D
F
SD
M
80
D
F
SD
P
81
GN
D
U
T
M
I
82
VD
D
C
OR
E4
83
PA28
84
PA29
85
PA31
86
VD
D
C
OR
E5
87
VD
D
IO4
88
GN
D
3
89
PB0
90
PB1
91
PB2
92
PB11
93
PB12
94
PB13
95
PA27
96
PB5
97
PB6
98
PB7
99
PB8
100
L6
47nH
D10
BAR63
R10
NC
C
388
47pF
U34
MAX3226E
RDY
1
C1+
2
V+
3
C1-
4
C2+
5
C2-
6
V-
7
RIN
8
ROUT
9
INVALID
10
TIN
11
F_ON
12
TOUT
13
GND
14
VCC
15
F_OFF
16
R3
47
C363
100nF
3VP
J5
CONN SOCKET 22
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
C386
47pF
SW12V
TX8V
IR
QVOC
2
C35
33pF
C205
100nF
+
C361
1uF
C37
NC
C
362
1nF
D1
R16
3K3
C238
100nF
RMOSI
RES
XC
2
C201
100nF
C225
100nF
R216
100K
DAO1
-
+
U6A
LM2904
3
2
1
8
4
+
8V
C330
1nF
C23
100nF
C349
33pF
3VTX
J3
FAN
1
2
12nH
Q2
2SC3357
3
2
1
MOSI
P10
1
1
R4
2 .2
P25
1
1
L7
27nH
TP55
1
R87
4K7
C376
1uF
R9
1K
R219 10K
3VP
R105
4K7
C400 47pF
C
24
10nF
VOL
IR
QVOC
1
C25
150pF
C
SV1
C190
100nF
3VTX
3VP
RMOSI
EDIO1
R96
10K
C105
8pF
R12
1K
PWM1
C333
1uF
C111
1nF
+
C61
10uF
UDP
C36
NC
CDSD
M
C
D
A0
U21
CMX-618
AVDD
1
AVSS
2
BIAS
3
VSSREF
4
INPP
5
INPN
6
AVDD
7
AVSS
8
VSSPA
9
OUTP
10
OUTN
11
VDDPA
12
VD
D
13
IOVD
D
14
EC
D
I
15
EC
D
O
16
EC
C
LK
17
EC
C
S
18
EEC
19
R
ESC
20
NC
21
VSS
22
C
SEL
23
IOVD
D
24
SY NC
25
VSS
26
XTALIN
27
XTALOUT
28
IOVDD
29
RESETC
30
XTALSEL1
31
XTALSEL2
32
XTALSEL3
33
ENABXTAL
34
IOVDD
35
NC
36
NC
37
NC
38
NC
39
NC
40
VSS
41
SC
LK
42
SM
OSI
43
SM
ISO
44
C
SC
45
IR
QC
46
IOVD
D
47
VD
D
48
AGND
49
+
C64
47uF
R
142
NC
R191
47K
1.8V
DA2
VS1
C
66
10nF
+8V
C34
27pF
C306
10nF
CO D EC1
D6
+
C307
10uF
C
244
100nF
3VD2
+
C308
10uF
C
245
1nF
C188
100nF
C189
1nF
U46
RT9167/18PB
Vin
1
GN
D
2
Sht
3
Vout
5
BP
4
C321
1nF
C229 1nF
R187
22
R
236
1K
C320
10nF
R111 1K
C142
1nF
C343
8pF
D13
1SV323
EDIO6
U24 BAS70
V
2
G
1
C
3
L17
100nH
C141
100nF
C29
100pF
1.8V
R18
220
R15 5.6
C140
1nF
AFO
ER
ES
C
160
1nF
R19
68
C135
100nF
3V A N A LO G PO WER SU PPLY 3V D IG ITA L PO WER SU PPLY
FC
C266
1uF
1.8V CO D EC PO WER SU PPLY
C30
100pF
C215 1nF
3VA
+
C216
1uF
PW
M
1
+
C296
10uF
L5
27nH
C165
100nF
Y 4
12Mhz
1 2
3 4
C339
1nF
R
198
100K
C170
100nF
R85
47
U3
RA60H1317M
RFIN
1
PW
_C
T
R
L
2
V+
3
R
F
OU
T
4
3VD2
+8V
IR
QVOC
2
SW3
SW SPST/SM
C164
100nF
R89
4K7
C261
10nF
R
207
39
C317
1nF
IR
QVOC
2
C47
150pF
C300
10nF
DA2
C
SV2
C101
0.5pF
+ C46
10uF
C157
100nF
+
C302
10uF
ASCK
+
C297
10uF
C166
100nF
VS2
R26
2K2
R8
2M2
U48
HT7233
Vin
1
GN
D
2
Sht
3
Vout
5
BP
4
TP63
1
1.8V
VS2
C185
100nF
TP64
1
C316
1nF
R234 1K
R251 47
R185 10
DCIN
C7
470pF
C187
100nF
C315
10nF
C11
NC
U22
CMX-618
AVDD
1
AVSS
2
BIAS
3
VSSREF
4
INPP
5
INPN
6
AVDD
7
AVSS
8
VSSPA
9
OUTP
10
OUTN
11
VDDPA
12
VD
D
13
IOVD
D
14
EC
D
I
15
EC
D
O
16
EC
C
LK
17
EC
C
S
18
EEC
19
R
ESC
20
NC
21
VSS
22
C
SEL
23
IOVD
D
24
SY NC
25
VSS
26
XTALIN
27
XTALOUT
28
IOVDD
29
RESETC
30
XTALSEL1
31
XTALSEL2
32
XTALSEL3
33
ENABXTAL
34
IOVDD
35
NC
36
NC
37
NC
38
NC
39
NC
40
VSS
41
SC
LK
42
SM
OSI
43
SM
ISO
44
C
SC
45
IR
QC
46
IOVD
D
47
VD
D
48
AGND
49
3VD2
C21
22pF
CO D EC2
3VA
L4
39nH
C186
100nF
3VD1
C22
15pF
8pF
+8V
C52
1uF
C153 1uF
J1
ANTENNA
1 2 3
C303
10nF
C161
100nF
DA2
C158
1nF
+
C304
10uF
R247 47
+
C305
10uF
C319
1nF
R186
22
ASC
K
AM
OSI
AM
ISO
C318
10nF
C146
1nF
PSK
R223 47
C145
100nF
C26
NC
U49
HT7233
Vin
1
GN
D
2
Sht
3
Vout
5
BP
4
1.8V
C163
1uF
C144
1nF
C143
100nF
L3
39nH
C19
39pF
R164 47K
C234 1nF
C10
5pF
+12V
3VA
C172
100nF
C168
100nF
AMOSI
4pF
C167
100nF
L2
39nH
RD
R160
10K
R169
47K
AF
O
A U D IO O U T BU FFER
R
151
NC
R157
47
C169
100nF
C264 1uF
C
125
150pF
R146
39
P20
1
1
15nH
FC
R
32
100K
C368
10nF
C129
15pF
3VA
1.8V
MUTE
C191
100nF
Smartrunk Systems, INC
3VA
CSD
C273 NC
R76 1K
33nH
R173 100K
U2
RDA1846
AVDD1
1
SCK
2
MOSI
3
AVDD2
4
XTAL1
5
XTAL2
6
MODE
7
CSR
8
AF
O
9
NC1
10
MIC
11
CC
12
AVD
D
3
13
NC2
14
RFIN
15
AVD
D
4
16
NC3
17
RFOUT
18
NC4
19
NC5
20
AVDD5
21
PABIAS
22
AVDD6
23
PDN
24
IO7
25
IO6
26
IO5
27
IO4
28
M
ISO
29
INT
30
SU
BD
31
SU
B
32
GND
33
C193
100nF
R
238
1K
15pF
R168 47K
R112 1K
3VD1
L9
18581
1 2
R155 10K
U41
MCP6241U
Vin+
1
VSS
2
Vin-
3
Vout
4
VDD
5
L11
100nH
D9
1SV323
C48
100nF
C192
100nF
P5
1
1
C270
1uF
C151 1uF
C268
1uF
C49
100pF
ED
IO6
+ C50
10uF
ALOOP
TXCLK
3VA
AM
OSI
AM
ISO
C51
10nF
ASC
K
+12V
R62 1K
CSMRX
UXTAL
C392 47pF
C58
100nF
L10
1uH
C59
1nF
C171
1uF
C198 1nF
C32
100pF
FC
D4
TX8V
C57
1nF
C54
100nF
R130
47
EAI1
C175 10nF
C28
470pF
C370 NC
C374
470pF
C285
1nF
TP57
1
MIC
SCK
TP58
1
R21
100
C15
100nF
R228 47
MOSI
R218
47
C33
100pF
M
C
D
A1
L8
0
ED
IO5
R56
100
TP37
1
TP38
1
3VP
TP39
1
TP40
1
FA N CO N TRO L
RS
CSD
TP42
1
TP41
1
MIC
RW
D0
RD
R132 1K
-
+
U6B
LM2904
5
6
7
8
4
SYN
C
3VT
X
CSD
DAO2
C53
100nF
D7
RESD
XC
1
R145
39
SQ
D3
D4
D5
D6
D1
D2
3VP
D2
C
194
100nF
+
C
195
10uF
F1
200mA
TP13
1
TP14
1
TP15
1
LACT
R162
2K7
R
143
NC
D ISPLA Y
PBB
PBA
FMIC
C232 1nF
RSCK
UXTALO
R
29
100K
C
31
10nF
DA2
C331
47p
PW
M
2
L19
100nH
C254 1nF
C124
8pF
C284
1nF
2pF
L12
100nH
D11
1SV323
LTX
R205
3K9
C346 33pF
R167 470
C375
10nF
EM
OD
2
C220 1nF
MISO
R7
100K
D7
VS2
R147
22K
J9
CON2
1
2
U25 BAS70
V
2
G
1
C
3
R70
10
ALOOP
R75 27K
DA1
L15
BLM41
R81
22K
C286
100nF
EAO1
VBL
D7
V12P10
R224 47
R99
100
RSCK
+ C287
1000uF
U19
MIMD
E2N
1
B2N
2
C1P
3
E1P
4
B1P
5
C2N
6
R217
100K
R183
47K
PTT
R188
10K
5.1pF
+8V
C
148
10uF
Q9
LML2244
1
3 2
12nH
C289
100nF
TX M O D EM
+ C292
10uF
C
156
10nF
BATT SW12V
R1
470
ECS
D4
RB886
U44
7808
IN
1
OUT
3
GN
D
2
C39
150pF
+
C293
10uF
C38
150pF
C290
100nF
C1
1nF
3VP
EDIO5
+8V
R24
10K
SW2
1 2 3 4
R23
10K
U20
CMX-7141
SMOSI
1
SSCK
2
SMISO
3
SCS
4
BOOTEN1
5
BOOTEN2
6
DVSS
7
IRQN
8
VDEC
9
GPIOA
10
GPIOB
11
SYSC
LK1
13
D
VSS
14
T
XEN
A
15
D
ISC
16
D
ISC
F
B
17
ALT
18
ALT
F
B
19
MICFB
20
MIC
21
AVSS
22
M
OD
1
23
M
OD
2
24
VBIAS
25
AUDIO
26
ADC1
27
ADC2
28
ADC3
29
ADC4
30
AVDD
31
DAC1
32
DAC2
33
AVSS
34
DAC3
35
DAC4
36 D
VSS
37
VD
EC
38
XT
AL/
C
LK
39
XT
ALN
40
D
VD
D
41
M
OSI
42
M
ISO
43
SSOU
T
44
D
VSS
45
SC
K
46
SYSC
LK2
47
C
SN
48
AGND
49
P26
HEADER 1
1
1
C288
150pF
3VA
R28
1K
C139
1nF
R27
330
AMISO
C138
10uF
C291
150pF
R215
2K2
C
149
1nF
M A IN PO WER
R196
47K
D3
RB886
10pF
XC
1
D8
CDS3C15GTA
SQ
D2
RB886
D1
RB886
ASC
K
R
152
NC
AM
ISO
D0
AM
OSI
C377 1uF
R102 1K
C340
18pF
C137
1nF
C
341
18pF
C342
18pF
U12
BAS70
V
2
G
1
C
3
C
136
10uF
C
152
100nF
R78
10
R241 1K
C
SM
T
X
C
335
100nF
C337
15pF
R
225
47
U18
BAS70
V
2
G
1
C
3
FMIC
R58
47K
3VA
C
279
10nF
R74 1K
C218
1nF
C
280
10nF
C243
47pF
C235
47pF
EMI1
+
C231
1uF
M
C
D
A2
TXADJ
R84 100K
R36
1K
C353
1nF
D5
R67 1K
GAIN
P21
1
1
3VD1
C208 10pF
C155
1nF
C154
10uF
R61 1K
R17
10K
P6
1
1
CSRX
VBU
R222 47
C277
100nF
LLINK
R192
10
ED
IO5
LACT
AU
D
IO
U47
LM1117
IN
1
OUT
3
GN
D
2
U52 BAS70
V
2
G
1
C
3
R221 47
PW
M
2
R252 47
15nH
IRQVOC1
C324
1nF
R248 47
FMIC
33nH
3VD
1
C107
22pF
R11
4K7
VS1
EMI2
R91 100K
R92 100K UPFW
C281 47pF
R
93
100K
C326 1nF
C233 1nF
R212
10K
R
100
100K
T
XD
R244 47
U
XT
ALO
SW1
1 2 3 4
D3
VBU
+
C359
1uF
R
VPW
C
360
1nF
C65
100nF
12nH
RESD
R
144
NC
C
D
SD
MISO
TX232
UDM
C226 1nF
+ C86
1uF
C85
NC
R47 22K
LRX
R34
100K
C88 NC
C173 1uF
TRA N SM ITTER CLO CK
R174
10K
TXADJ
Y 1
12.8Mhz
1 2
3 4
C
181
1nF
C67
1nF
P12
1
1
P4
1
1
CT X8V
RX RA D IO PO WER SU PPLY
P1
CONNECTOR DB25
13
25
12
24
11
23
10
22
9
21
8
20
7
19
6
18
5
17
4
16
3
15
2
14
1
J6
8 HEADER
1
2
3
4
5
6
7
8
Y 5
25Mhz
+8V
IR
QM
R
X
R
194
470K
R127 6K8
3VRX
3VTX
3VR
X
C
108
10nF
C74
100pF
C
159
1nF
+
C116
10uF
R37
100
P16
1
1
3VP
MOD1
TXCLK
U26 BAS70
V
2
G
1
C
3
R54
22
TP59
1
+
C75
10uF
+
C109
10uF
R46
100K
TP61
1
U11
HT7233
Vin
1
GN
D
2
Sht
3
Vout
5
BP
4
R68
100
ALOOP
C
398
47pF
C
ST
X
C104
15pF
C365
100nF
R
235
1K
C
127
1nF
RD
R69 1M
C
T
X8V
ALOOP
C126
10nF
ED
IO4
PINK VALUES CORRESPOND TO ST-9116C & ST-9116D
H
OOK
R189
22K
BLUE VALUES CORRESPOND TO ST-9116V
MODELS, THEN Y OU WILL FIND THREE VALUES UNDER THE COMPONENT.
IF COMPONENT IS DIFERENT BETWEEN THE DIFERENT
REFERENCES
C
246
1nF
SYN
C
EAI1
RS
TP25
1
TP26
1
R88 1K
TP27
1
TP16
1
TP29
1
TP28
1
TP18
1
TP30
1
TP17
1
LLINK
RSCK
M
C
D
A3
U51
MCP6241U
Vin+
1
VSS
2
Vin-
3
Vout
4
VD
D
5
C147
150pF
C2
1nF
R
ES
RES
C
278
1nF
2pF
R172 4K7
15pF
MUTE
C272 1nF
3VP
C
249
1nF
TP43
1
TP44
1
R171
2K2
TP45
1
A U D IO PA
TP47
1
TP46
1
C
SV1
TP48
1
U14
BAS70
V
2
G
1
C
3
FMIC
C253
NC
3VA
GAIN
R
XC
1
C202 150pF
R149 22K
U43
MCP6241U
Vin+
1
VSS
2
Vin-
3
Vout
4
VDD
5
C269
1uF
R134
2/2W
EDIO4
R158
10K
C199 1nF
3VA
R
197
47K
R128
10K
LR
X
PW
SET
R166
10K
C257
0
D6
C213 1nF
M IC PRE A M PLIFIER
R159
47
R73 1K
U36
LM4950TS
-VINa
1
SD
2
OUTa
3
GN
D
4
GN
D
2
5
VD
D
+
6
OUTb
7
BY P
8
-VINb
9
GN
D
3
10
C262
1uF
DA1
R148 22K
C182
1uF
+ C217
470uF
C
120
100nF
+
C240
220nF
R83 1K
C
121
1nF
R104
10K
MOSI
M
OD
1
R
XAD
J
R124 220K
12nH
R243 47
BATT
MOD2
C
224
1nF
C77
1nF
VBU
S
R
178
75
3VA
TP23
1
TP22
1
R66 1K
TP24
1
LS1
SPEAKER
R35
10K
MOD2
R115
10K
R
226
47
R239 47
AMOSI
R
XC
2
U
PF
W
C
271
10nF
P22
1
1
1pF
R133 1K
R33
3K3
RXCLK
P7
1
1
15pF
100pF
ALOOP
FC
C
344
150pF
R199
100K
SCK
R161 470
-
+
U4A
LM2904
3
2
1
8
4
FAN
+
C298
10uF
C236 1nF
CSRX
UDP
R227 47
AUDIO
TXD
U39
KSZ8851
LED
0
1
PM
E
2
INTRN
3
D
GN
D
4
VD
D
_C
O18
5
ED
D
-I
O
6
EESK
7
AGN
D
8
VDD_A18
9
EECS
10
RX+
11
RX-
12
AGND2
13
TX+
14
TX-
15
VDD_A33
16
ISET
17
AGN
D
3
18
R
ST
N
19
X1
20
X2
21
D
GN
D
2
22
VD
D
_D
18
23
D
GN
D
3
24
VDD_IO
25
CSN
26
MISO
27
SCK
28
DGND4
29
VDD_OI2
30
MOSI
31
LED1
32
R31 4K7
U42
MCP6241U
Vin+
1
VSS
2
Vin-
3
Vout
4
VDD
5
3VRX
C267
1uF
C
3
3
4
100pF
C311
100nF
4pF
PT
T
C150
1nF
C
114
100nF
C
103
1nF
R175 470
+
C356
1uF
CST X
C357
1nF
C92
100nF
C274 47pF
C93
1nF
IRQVOC1
C227 1nF
3VD2
D
A1
UDMF
R123
10K
3
1
2
R
220
47
C345 15pF
SY NC
U32
BAS70
V
2
G
1
C
3
R
59
47