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8-5
Front Control Board Circuit Diagram:Bluetooth
5
FB9
FB9
500/500mA
500/500mA
R195
R195
0
0
3.3V_STBY
BT_3V3
Q3
Q3
NC/PNP_3CG3906M
NC/PNP_3CG3906M
D
4V
R78
R78
R319
R319
NC/100K
NC/100K
NC/3.3K
NC/3.3K
R12
R12
NC/4.7K
NC/4.7K
VCC_D
Q4
Q4
R686
R686
NC/10K
NC/10K
D
C
B
+12V_D_A
XS2
XS2
4
4
3
MIC_Detect 2
3
2
2
1
MIC 2
1
4PIN/2.0mm
4PIN/2.0mm
A
A
5
4
Bluetooth
BT_3V3
BT_BM160
BT_BM160
R77
R77
100K
100K
BT_RST
BT_RST
1
R83
R83
2
0
0
BT_RESET
3
BT_RESET
2
4
5
PIO9
2
6
C47
C47
R84
R84
7
PIO11
2
0
0
8
2
PIO12
9
2
PIO13
10
11
D
12
BT_3V3
13
14
TP18
TP18
15
C53
C53
C54
C54
16
TM39
TM39
17
TM40
TM40
18
D
D
D
D
R15
R15
100
100
XS1
XS1
C628
C628
1
2.2uF/10V/Y5V
2.2uF/10V/Y5V
1
2
R692
R692
2
3
47K
47K
3
3PIN/2.0mm
3PIN/2.0mm
R6
R6
100
100
C629
C629
A
R693
R693
2.2uF/10V/Y5V
2.2uF/10V/Y5V
47K
47K
ESD3
ESD3
ESD4
ESD4
A
4
3
2
TP32
TP32
R91
R91
0
0
R87
R87
R88
R88
NC/0
NC/0
NC/0
NC/0
BT_ADUIO_EN
BT_ADUIO_EN
2
BT_STATUS
BT_STATUS
2
U10
U10
D
48
AIO1
GND
47
AIO0
MIC_A_N
46
R89
R89
RESET
MIC_A_P
45
0
0
R951
R951
9.1K
9.1K
GND
MIC_B_N
44
PIO9
MIC_B_P
43
PIO1 0
MIC_BIAS
42
PIO11
GND_S
41
PIO12
SPK_R_P
40
PIO13
SPK_R_N
39
PIO14
SPK_L_P
R953
R953
9.1K
9.1K
38
PIO15
SPK_L_N
37
GND
GND
36
VDD
LED0
R954
R954
35
VDD_USB
LED1
2K
2K
34
+1V8
VDD_CHG
33
BT_3V3
GND
GND
32
USB_DP
VDD_BAT
31
USB_DN
VRE_IN
A
C56
C56
0.1uF/25V/Y5V
0.1uF/25V/Y5V
D
BT_3V3
BT_3V3
BT_3V3
GND
GND
GND
MOSI
MOSI
MOSI
BT_CLK
BT_CLK
BT_CLK
MISO
MISO
MISO
CSB
CSB
CSB
+12V_D_A
D
R613
R613
C774
C774
NC/100pF/50V/NP0
NC/100pF/50V/NP0
A
USB_VCC
R21
R21
R20
R20
100K
100K
100K
100K
BT_R
BT_L
USB_VCC
R23
R23
R22
R22
100K
100K
100K
100K
R18
R18
R19
R19
100K
100K
100K
100K
A
MP3_R
R16
R16
100K
100K
MP3_L
R17
R17
100K
100K
3
2
8-5
1
R938
R938
100K
100K
2K
2K
R945
R945
R946
R946
9.1K
9.1K
C775
C775
R937
R937
10K
10K
2
4.7uF/10V/Y5V
4.7uF/10V/Y5V
1
BT_R
3
C779 4.7uF/10V/Y5V
C779 4.7uF/10V/Y5V
R949
R949
9.1K
9.1K
C776
C776
U406A
U406A
R939
R939
10K
10K
R943
R943
AS4558M
AS4558M
4.7uF/10V/Y5V
4.7uF/10V/Y5V
100K
100K
R950
R950
BT_12V
BT_REFM
2K
2K
R952
R952
R944
R944
2K
2K
100K
100K
C780
C780
A
C777
C777
R940
R940
10K
10K
5
+
+
4.7uF/10V/Y5V
4.7uF/10V/Y5V
7
BT_L
C778
C778
R941
R941
10K
10K
6
4.7uF/10V/Y5V
4.7uF/10V/Y5V
-
-
U406B
U406B
A
4.7uF/10V/Y5V
4.7uF/10V/Y5V
AS4558M
AS4558M
A
R942
R942
100K
100K
R647
R647
1K
1K
BT_12V
BT_REFM
4.7K
4.7K
+ CE612
+ CE612
C773
C773
CE613
CE613
0.1uF/16V/Y5V
0.1uF/16V/Y5V
R611
R611
220uF/16V
220uF/16V
22uF/10V/Y5V
22uF/10V/Y5V
4.7K
4.7K
A
A
A
USB_VCC
USB_VCC
R955
R955
NC/10K
NC/10K
FB23
FB23
47
47
1
6
MP3_R
MP3_BT_SW 2
B2
S
2
5
GND
VCC
BT_R
3
4
C97
C97
C785
C785
MP3_BT_R2
B1
A
C624
C624
U21
U21
2.2uF/10V/Y5V
2.2uF/10V/Y5V
74LVC1G3157GV
74LVC1G3157GV
MP3_L
1
6
A
B2
S
2
5
GND
VCC
BT_L
3
4
MP3_BT_L 2
B1
A
C627
C627
U22
U22
2.2uF/10V/Y5V
2.2uF/10V/Y5V
74LVC1G3157GV
74LVC1G3157GV
1
D
C
B
A
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