Read Sony MEX-BT3700U / MEX-BT3750U Service Manual online
MEX-BT3700U/BT3750U
MEX-BT3700U/BT3750U
5
5
(3/4)
MAIN
BOARD
1
(4/4)
MAIN
BOARD
2
(2/4)
3
MAIN
BOARD
5
0
6.1
0
2.4
5
3.3
3.3
3.3
3.3
1.7
1.6
0
0.6
0
6.1
0.6
0
0
3.3
14.2
14.2
14.2
7.2
14.2
14.2
3.3
2.6
0.9
5.1
5.1
3.3
3.3
5.1
5.1
5.1
3.3
1.6
0
14.2
14.2
13
0.5
4
1.2
0.7
14.2
5.1
5.1
13
5.1
5.1
0
4.8
0
0
5.1
5.1
0
5.1
5.1
JL022
2SC3052EF-T1-LEF
Q703
JL012
10V
100
C403
MAZ8180GMLS0
D703
15k
R600
JL013
0.01
C408
JL008
1000p
C705
JL023
JL025
100
R403
1k
R602
JL005
0
R409
16V
10
C401
1k
R406
MAZ8180GMLS0
D704
JL014
1k
R613
8P
CNJ600
7
8
4
5
6
1
2
3
10k
R705
10V
100
C407
MAZ8180GMLS0
D612
100
R400
MAZ8062GMLS0
D600
0.01
C400
JL010
TH600
0.01
C402
R610
100
MAZ8180GMLS0
D610
JL019
JL028
R617
330k
10k
R706
0
R612
0
R618
JL027
4.7k
R711
1k
R407
JL024
RT1N141C-TP-1
BATTERY CHECK
Q600
MAZ8180GMLS0
D601
100
R401
MAZ8180GMLS0
D705
JL016
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BA8271F-E2
IC601
BUS_ON
RST
BATT
CLK
VREF
DATA_I/O
GND
DATA_OUT
DATA_IN
BU_CHECK
CLK_IN
BUS_IN
RST
VCC
3300p
C709
JL020
100
R611
0.47
C707
JL007
JL015
MAZ8180GMLS0
D702
0.01
C611
JL017
2SC3052EF-T1-LEF
Q701
0.1
C610
JL001
JL018
100k
R404
JL021
MA2ZD14001S0
D611
1000p
C704
47k
R709
JL004
47k
R710
47k
R704
1k
R614
330k
R616
JL003
0.01
C924
0
R408
25V
470
C600
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
28P
CN350
NCO
NCO
SYS_RST
BU_3.3V
BU_GND
NCO(FLASH_W)
VBUS_ON
Z_MUTE
VBUS_CHECK
D_GND
TXD(MC-BUS)
RXD(MC-BUS)
MECHA_8.5V
USB_GND
DR_6V
DR_GND
CD_ON
CDM_ON
AU_ATT
AU_LCH
AU_GND
AU_RCH
A_GND
A_3.3V
EJECT_OK
OPEN_REQ
BU_CHECK
WAKE_UP
JL011
J701
100
R615
0.47
C708
3300p
C710
0
R414
0
R415
0
R416
0
R413
0
R714
0
R713
0
R712
39k
R861
2SB1690KT146
Q854
0.1
C865
6
5
4
3
2
1
D
D
G
S
D
D
TPC6108(T5RSONYF,M
Q861
8
7
6
5
4
3
2
1
TC7WH123FU(TE12R)
IC853
A
B
CLR
GND
Q
Cx
Rx/Cx
VCC
MAZ8056GMLS0
D853
0.1
C851
4.7k
R867
10k
R873
0.22
C850
MA2J1110GLS0
D854
8
7
6
5
4
3
2
1
TPS40200DRG4
IC851
RC
SS
COMP
FB
GND
DRV
ISNS
VCC
470p
C869
1.5k
R855
470p
C856
RT1N141C-TP-1
Q852
100k
R858
10k
R868
MA24D5000BS0
D852
6
5
4
3
2
1
D
D
G
S
D
D
RSQ035P03TR
Q853
330k
R860
1k
R866
10k
R865
1500p
C858
0.1
C870
0.1
C861
1
C857
1k
R871
6
5
4
3
2
1
D
D
G
S
D
D
TPC6108(T5RSONYF,M
Q851
100k
R864
0
R872
0
R874
0.1
C854
0.1
C871
47uH
L851
36V
2A
FU851
10k
R869
0.1
C864
68k
R856
16V
220
C863
100k
R862
470p
C855
1
C860
15p
C859
68uH
L852
8
7
6
5
4
3
2
1
TPS2051BDRG4
IC852
GND
IN
IN
/EN
/OC
OUT
OUT
OUT
MAZ8120GMLS0
D851
47k
R851
47k
R852
1
C853
25V
470
C852
0
R870
22k
R863
560p
C406
560p
C405
FB418
FB419
FB420
L401
2.2uH
0
L400
17
18
20
22
19
21
23
1
7
6
5
2
4
8
9
10
11
16
14
15
13
28
27
24
25
12
MC_TX
CD_ON
CDM_ON
EJECT_OK
WAKE_UP
ACC_IN
UNISI
UNISO
BU_CHECK
VBUS_ON
UNISCK
Z_MUTE
BUS_ON
MC_RX
USB_ON
USB_OVR
SYN_OUT
DD_ON
RC0
RC1
SYS_RST
TEL_ATT
BU_CHECK
(1/4)
MAIN BOARD
IC853
CONTROL
USB POWER
IC852
IC851
DC/DC CONVERTER
SONY BUS
IC601
LEVEL SHIFT
ACCESSORY
CHECK
ON/OFF SWITCH
DC/DC CONVERTER
DC/DC CONVERTER
Q854, 861
DC/DC CONVERTER
DC/DC CONVERTER
Q851, 852
INTERFACE
(BT3700U)
(BT3750U)
BUS CONTROL
IN
REMOTE
IN
J
4
B
16
6
9
11
D
15
H
L
10
K
3
5
12
C
F
1
E
8
G
14
A
2
13
I
7
Refer to page
28 on original
28 on original
service manual
(1/2)
SERVO
TO
BOARD
2-3. SCHEMATIC DIAGRAM - MAIN Board (1/4) -
(Page 7)
(Page 6)
(Page 8)
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