MEX-BT3700U, MEX-BT3750U - Sony Car Audio Service Manual (repair manual). Page 6

Read Sony MEX-BT3700U / MEX-BT3750U Service Manual online

MEX-BT3700U/BT3750U
MEX-BT3700U/BT3750U
6
6
4
BOARD
MAIN
(4/4)
3
BOARD
MAIN
(1/4)
MAIN
(3/4)
BOARD
5
MAIN
BOARD
(4/4)
7
MAIN
BOARD
(3/4)
8
0
0
0
0
0
3.3
0
4.2
4.2
4.2
4.2
4.2
4.2
8.4
1.2
1.5
0
0.5
1.3
0
3.3
5
0
0
0
0
3.3
3.3
0
4.2
0
4.2
4.2
4.2
4.2
4.2
8.4
4.2
4.2
0
0
0
0
3.3
0
3.3
3.3
4.2
2.3
3.5
0
3.1
0
0.5
0
3.1
0
3.7
3.8
1.3
3.7
6.7
5.7
8
0
8
5.7
8
8
5.4
0.8
3
4.6
3.7
3
100
R815
100
R816
100
R817
100
R818
100
R819
100
R820
100
R821
100
R822
100
R823
100
R824
100k
R809
100k
R810
100k
R811
100k
R812
100k
R813
100
R805
100
R803
100
R806
100
R807
100
R808
LBAT54CLT1G
D802
RT1N141C-TP-1
Q802
LBAT54ALT1G
D801
10k
R801
0.1
C801
0.01
C803
0.01
C805
16V
47
C804
10V
100
C806
0.01
C807
1
2
3
3P
CN811
EXT_MIC_IN
A-GND
MIC_DETECT
4.7k
R825
1000p
C823
1k
R829
C826
4.7
2.2k
R832
0
R830
1000p
C828
2.2k
R831
4.7
C830
4.7k
R833
LRB751V-40T1G
D823
D820
MAZ8068GMLS0
8
7
6
5
4
3
2
1
NJM4580V(TE2)
IC813
8
7
6
5
4
3
2
1
NJM4580V(TE2)
IC814
RT1N141C-TP-1
Q823
0.047
C880
Q826
RT1N141C-TP-1
0
C809
1
2
2P
CN810
MIC_IN
A-GND
RT1P141C-TP-1
Q803
RT1P141C-TP-1
Q820
RT1P141C-TP-1
Q821
1k
R834
C822
1000p
0
R826
100k
R847
0
R849
1
C838
3.9k
R886
3.9k
R887
RT1N141C-TP-1
Q822
1
C840
100k
R884
0.1
C845
1
C847
22k
R880
22k
R881
0
R883
0
R882
RT1N141C-TP-1
Q824
RT1P141C-TP-1
Q825
0
R893
220k
R890
220k
R889
22k
R891
0.01
C882
0.01
C881
0.1
C883
1k
R892
RT1P141C-TP-1
Q827
0
R898
1
2
3
4
5
6
TS5A3159DCKR
IC812
NO
GND
NC
COM
V+
IN
C834
0.1
MAZ8120GMLS0
D821
0
R800
C899
1000p
1000p
C900
BT800
MIC_IN-
MIC_IN+
BT_INT-HF
BT_CVC
BT_PLAY
BT_STATUS0
BT_STATUS1
BT_STATUS2
BT_RESET
GND
VDD_3.3V
VDD_8.5V
A-GND
BT_AUDIO_L
A-GND
BT_AUDIO_R
BT_STATUS3
BT_MUTE
BT_FR
BT_FF
GND
BT_TEST1
BT_TEST2
BT_POW_ON
BT_OPRPOW
BT_MFUNC
C812
4.7
1k
R899
1k
R900
4.7
C829
5
4
3
2
1
TK11133CSCL-G
IC801
CONT
GND
NP
VOUT
VIN
C813
1000p
S
SSM3J05FU
Q862
0
R836
0
R835
0
R838
0
R837
MAZ8068GMLS0
D824
33
29
30
31
32
34
35
24
25
27
28
36
100k
R885
0.01
C22
1
C21
0
R19
VR1
33k
R10
GND_1
0.1
C24
68k
R6
L2
2.2uH
0
R17
0.1
C26
1
C14
VSM
1
C15
TU_RCH
0
R15
4.7k
R11
16V
47
C28
0.01
C20
32
31
30
29
28
27
1
2
3
4
5
6
26
25
24
7
8
9
23
22
21
20
10
11
12
19
18
17
13
14
15
16
TEF6607T/V4/S470,518
IC1
AMRFIN
AMRFDEC
FMIN2
FMIN1
GNDRF
VCC2
AMRFAGC
LOUT
ROUT
GNDAUD
AMIFAGC2
MPXIN
MPXOUT
RSSI
XTAL2
XTAL1
GNDD
SCL
SDA
VREF
VREGSUP
VCC1
GND
VCODEC
PLL
PLLREF
TEST
AMSELIN1
AMSELIN2
AMIFAGC1
AMSELOUT1
AMSELOUT2
0
R18
FB2
0
R5
560uH
L8
1000p
C1
0.47
C16
8.5V
I2C_SCK
0
R4
560uH
L7
0.1
C27
100
R13
470k
R2
2.2
C13
22
R12
0.1
C25
L6
FM MIX
1
2
3
4
6
0.01
C23
1000p
C5
FB4
33p
C8
3.3uH
L1
FB1
4MHz
X1
0
R16
0.01
C19
TU_LCH
0
R3
12p
C18
0.22
C12
I2C_SIO
0.1
C9
470k
R1
C6
15p
C29
330p
C32
10p
FB3
RDS_OUT
100
R14
0.1
C17
BT_FF
BT_FR
BT_MUTE
BT_ST3
BT_ST2
BT_ST1
BT_ST0
BT_PLAY
BT_CVC
BT_INT
BT_TE1
BT_TE2
BT_ON
BT_OP
BT_MF
BT_RST
BT_POW
BT_L
BT_R
MAIN BOARD (2/4)
MIC AMP
IC814
+3.3V REGULATOR
IC801
MIC AMP,
IC813
MIC INPUT SELECT
IC812
CENTER VOLTAGE
REGULATOR
G
V
V
G
MIC AMP
Q826, 827
B+ SWITCH
MUTING
Q802, 803
REGULATOR CONTROL
MIC AMP
INVERTER
Q820-822
B+ SWITCH
BT3750U: EA
BT3700U: US, CND/
BT3700U: US, CND/
BT3750U: EA
(BT3700U: US, CND/BT3750U: E, MX, IND)
PLL
BT3750U: E, MX, IND
BT3750U: EA
IC1
BT3750U: E, MX, IND
(CHASSIS)
(BT3700U: AEP, UK)
BT3700U: AEP, UK/
(ANTENNA IN)
J1
BT3700U: AEP, UK/
BT3700U: AEP, UK/
(CHASSIS)
J801
EXTERNAL
MICROPHONE
MIC801
J
4
B
16
6
9
11
D
15
H
10
17
3
5
12
C
F
18
1
E
8
G
14
A
2
13
I
7
13
12
11
10
9
8
7
6
5
4
3
2
1
14
15
16
17
18
19
20
21
22
23
24
25
26
TO
BT
BOARD
Refer to page
29 on original
service manual
2-4.  SCHEMATIC  DIAGRAM  - MAIN Board (2/4) -
(Page 8)
(Page 7)
(Page 
8)
(Page 7)
(Page 5)
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