Sony MEX-BT2700 / MEX-BT2707E / MEX-BT2750 Service Manual ▷ View online
MEX-BT2700/BT2707E/BT2750
MEX-BT2700/BT2707E/BT2750
25
25
4-2. SCHEMATIC DIAGRAM - MAIN Section (1/3) -
• See page 30 for waveforms. • See page 33 for IC Pin Function Description.
S502
R51
0
D510
D512
R561
R679
JC302
JC301
R531
R534
R563
R663
R756
R523
CNP301
R565
R530
CN351
R517
C302
C301
C343
C312
R528
FB309
R578
C305
R301
C309
C310
C308
JW117
JW116
C504
R550
JW67
C523
C522
R662
C513
R673
R505
C514
C512
C501
R502
R504
R503
R671
R661
JW44
JW143
JW119
R547
R511
R514
R53
2
R513
R51
2
R57
0
C508 C507
X502
R53
3
R50
8
R50
1
R50
9
C51
0
R54
3
R67
7
R52
9
JW58
C509
R567
JC521
R522 R521
C521 C520
R51
6
JW87
R674
R672
R676
R675
R636
R500
R539
FB311
FB312
FB308
IC800
R506
R520
JW83
FB304
R573
R538
R549
R574
R566
R691
R507
R537
R551
R575
R546
JC513
R52
6
JW6
9
C502
C804
Q808
Q807
R811
R810
Q806
JC800
R83
3
R832
R83
4
R835
D801
FB800
C800
C827
R802
R801
C828
R800
JC803
C801
JC802
CN804
R836
R837
R838
R839
R840
R841
R842
R843
R844
R845
R846
R847
R553
X501
R84
8
R849
R558
R559
R850
R851
R852
R853
R564
JC501
D50
2
R302
CN805
JC801
IC501
R519
R542
D800
C306
C802
R664
1k
LBAT54A
LBAT54C
100k
1k
0
0
100k
10k
100k
1k
47k
100k
28P
100k
100k
8P
0
100
10V
22
25V
0.01
0.01
100k
0
1k
100
10V
1k
560p
560p
0.01
0.01
100k
0.01
0.01
10k
0.01
10k
10k
0.001
0.001
0.01
1k
10k
1k
100
1k
1k
1k
100k
100k
100k
1k
470
22p 18p
32.678KH
z
100k
220k
10M
0
0.01
1k
0
100k
0.0022
100k
0
2.2k
2.2k
47p 47p
0
100k
100
1k
1k
100k
10k
100k
XC6218P322
100k
100k
100k
100k
100k
100k
100k
100k
100k
100k
100k
100k
100k
0
100k
0.001
0.01
RT1N441C
RT1N441C
1k
470
2SB1690K
0
100
0
100
100
BAT54A
0
0.01
0.01
1k
1k
47
16V
0
0
100
10V
0
13P
100
100
100
100
100
100
100
100
100
100
100
100
100k
11.06MHz
100k
100k
1k
100k
100k
100k
100k
100k
100k
0
LRB
751V
1k
13P
0
R5F3640DDA01FA
100k
1k
RB705D
0.01
0.1
10k
A1
A2
A3
A4
A5
A6
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
I2C-SCL
I2C-SDA
L-C
E
L-D
A
NOS
E-SW
BEEP
UNIS
I
UNISCK
SYSRST
BUSON
CDM_ON
CD_ON
SIR
Z-MUTE
RESET
BUSON
BUIN
KEY0
KEY1
RDS_ON
RE-0
RE-1
SADATA
SAIN
RESET
ACC
ATT
DIAG
STB
CD_ON
TEL
Z-MUTE
TXD
RXD
CNVSS
TXD
RXD
BT_FR
BT_MUTE
BT_ST3
BT_ST2
BT_ST1
BT_ST0
BT_PL
BT_IRQ
BT_INT
BT_TE2
BT_TE1
BT_
RST
BT_
ON
BT_
OP
BT_
MF
BT_FF
BT_
MIC
_POW
BT_PWRCTRL
BT_FF
BT_FR
BT_MUTE
BT_PWRCTRL
CDM_
ON
CNVSS
BT_RST
BT_ON
BT_MF
BT_OP
BT_MIC_POW
BT_ST3
BT_ST2
BT_ST1
BT_INT
BT_IRQ
BT_TE2
BT_TE1
SYSRST
SACLK
RCIN0
RCIN1
UNISO
UNISI
UNISCK
CNVSS
VSM
DAV
N
BT_PL
BT_ST0
CLK
BUSY
BUSY
CLK
RESET
RCIN0
RCIN1
L-CLK
BUI
N
LINK_OFF
9K
10K
GND
FLASH_W
BU3.3V
RXD
TXD
BUSY
CLK
RESET
KEYIN1
KEYIN0
UNIS
O
UNIS
I
RES
ET
BEEP
OSCIN
OSCOUT
XIN
XOU
T
BUIN
TESTIN
TELATT
ATT
SYSRST
BUSON
DIAG
NCO
NCO
DAV
N
I2C_SIO
SIR
CS
AREASEL
0
AREASEL1
NCO
NCO
NCO
VSS
AREASEL2
VSS
UNIS
CK
NOS
E_SW
LCD_CKO
AVRH
RC_IN0
RC_IN1
ACC_IN
RDS_ON
LCD_CE
LCD_SO
RE-IN1
RE-IN0
RE-IN0
NCO
CYRIL_SEL
CDM_
ON
CD_ON
Z-MUTE
AMPSTB
AREASEL
3
VCC1
KEYACK1
KEYACK0
AVSS
AVDD
VCC2
CNVSS
BYTE
NMI
I2C
_SCK
DEM
O SEL
ILLUMI
SEL
DIM SEL
B-OUT SEL
NCO
BT_STATUS0
NCO
NCO
NCO
RESET
STAPWR
TU-ATT
EPM
CE
VSM
FW_RXD
FW_
TXD
BT_TEST1
BT_TEST2
BT_INT-HF
BT_
CVC
BT_PLAY
NCO
FW_CLK
BT_STATUS1
BT_STATUS2
BT_STATUS3
BT_MUTE
BT_FF
BT_FR
FW_BUSY
BT_MICPWR
BT_PWRCTRL
BT_OPRPWR
BT_
BT_
NCO
NCO
SAIN
SADATD
SACLK
NCO
BT_
AUDIO_
SEL
BT_
MFUNC
MFUNC
(1/3)
CD MECHANISM DECK
SENSOR
BOARD
SERVO BOARD
MG-101L-188//Q
REGULATOR
+3.3V
(BT2707E)
(BT2700/BT2750)
(BT2750)
(BT2700/BT2707E)
(BT2707E)
(BT2700:US,CND/BT2707E)
(BT2700:AEP,IT,UK/BT2707E)
(BT2700:US,CND/BT2750)
(BT2700:AEP,IT,UK/BT2750)
FREQUENCY
SELECT
(BT2750:E,MX,IND)
(BT2750:E,MX,IND)
SYSTEM CONTROLLER
B+ SWITCH
Q806-808
(PATTERN ANTENNA)
CN1
BOARD
BT
MIC201
(NC)
BT2700:US,
CND/BT2750
(BT27
00:AE
P,I
T,UK
/BT27
07E)
(BT2700/BT2750:EA)
(BT2750:E,MX,IND)
(Page 26)
(Page 26)
(Page 26)
(Page
27)
Note: When the BT board is replaced, it is necessary to confi rm operation. Refer to “BLUETOOTH FUNCTION
CHECKING METHOD USING A CELLULAR PHONE” of the servicing note (See page 6).
MEX-BT2700/BT2707E/BT2750
MEX-BT2700/BT2707E/BT2750
26
26
• See page 30 for IC Block Diagrams.
4-3. SCHEMATIC DIAGRAM - MAIN Section (2/3) -
C623
IC602
C757
C683
IC681
C761
D760
C602
D601
C617
D617
C618
R635
R631
S702
C519
R601
C503
C682
FB604
C681
C622
D75
9
D76
1
D762
D511
Q478
C479
D479
C770
C769
C750
C752
C763
C765
C776
C771
C751
C435
C445
C442
C432
C764
C774
JC502
D754
D753
D755
D756
Q479
Q511
JC511
D475
R479
C758
C753
JC755
JC754
R65
2
R65
1
D651
R653
FU601
IC750
D602
JC303
C775
CN601
L601
250
μH
C601
1000
10V
XC61CN2802NR
2.2
10
50V
XC6218P332
220
10V
10EDB40
0.1
1N5404
0.001
MAZ8180GM
0.001
10k
10k
0.1
100k
100
10V
0.1
0
0.1
1000
10V
10EDB40
10EDB40
10EDB40
MC2838
RT1N141C
47
16V
MA2J1110
0.22
0.22
0.22
47
16V
0.22
0.22
0.001
1
0.22
1
1
1
1
0.22
0.22
0
10EDB40
10EDB40
10EDB40
10EDB40
RT1P141C
RT1P141C
0
MA2J1110
22
10
50V
22
25V
0
0
47k
1k
MAZ8180GM
10k
10A
32V
10EDB40
0
0.22
16P
3300
16V
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
E14
E15
E16
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
RESET
I2C
-SD
A
I2C-SC
L
RL-
RL-
RL+
RL+
FL-
FL-
FL+
FL+
FR-
FR-
FR+
FR+
RR-
RR-
RR+
RR+
REGULATOR
+3.3V
(2/3)
RESET
MUTING
CONTROL
MUTING
CONTROL
Q478-479
TDA8588AJ
POWER AMP, REGULATOR
(BT2700:AEP,IT,UK)
ATT
AMP REM
BATT
GND
MAX 0.3A
ACC
AMT REM
BATT
GND
FRONT LCH-
FRONT LCH+
REAR LCH+
REAR LCH-
REAR RCH+
REAR RCH-
FRONT RCH+
FRONT RCH-
ACC
GND
BATT
ATT
AMP REM
MAX0.3A
ACC
AMT REM
ANT REM
MAX0.1A
(BT2700:AEP,IT,UK/BT2707E)
G
O
I
(BT2700:US,CND/BT2750:E,EA,MX)
RESET SIGNAL GENERATOR
TO
CN601
TO
CN601
TO
CN601
TO
CN601
RL+
FL+
GND
GND
ACC
FR+
RR+
RL+
FL+
FR+
RR+
RL-
FL-
FR-
ILL
BATT
BATT
ACC
ILL
RR-
RL-
FL-
FR-
RR-
ATT
(BT2750:IND (for Gasoline car))
AMP REM
MAX 0.3A
ANT REM
MAX 0.1A
ANT REM
MAX 0.1A
RL+
FL+
GND
GND
ACC
FR+
RR+
RL+
ACC
ANT REM
RR+
FL+
ILL
FR+
RL-
FL-
FR-
BATT
ILL
BATT
RR-
RR-
FL-
FR-
RL-
ATT
(BT2750:IND (for Diesel car))
AMP REM
MAX 0.3A
ANT REM
R633
Q631
Q580
D581
FB563
TH580
JW113
JW134
R583
R634
C631
C632
R632
JW41
JW46
FB562
FB561
CN580
R580
C582
JC580
R590
R581
Q586
D583
D582
D584
R588
R587
R591
Q587
C580
IC580
R654
Q651
R582
D580
R584
R555
R554
J561
C581
JC581
JW63
47k
2SC3052EF
RT1N141C
MAZ8180GM
1k
4.7k
0.47
0.47
47k
8P
100k
0.1
0
0
100
RT1P141C
MA2ZD14001SO
MAZ8180GM
MAZ8180GM
1k
1k
4.7k
FMC2A
0.01
BA8271F-E2
10k
2SC3052EF
15k
MAZ8062GM
220k
330k
330k
3P
470
25V
0
A1
A2
A3
A4
A5
A6
UNISI
UNISO
UNISCK
BUSON
SYSRST
LINK_OFF
ACC
BUIN
TEL
BUS
INTERFACE
REMOTE
IN
BUS
CONTROL IN
TEL ATTENATION DETECT
BATTERY CHECK
-1
-2
Q586,587
LINK ON/OFF
ACC DETECT
(Page 25)
(Page 25)
(Page 25)
(Page
27)
MEX-BT2700/BT2707E/BT2750
MEX-BT2700/BT2707E/BT2750
27
27
• See page 30 for waveforms. • See page 30 for IC Block Diagrams.
4-4. SCHEMATIC DIAGRAM - MAIN Section (3/3) -
R401
C151
C152
C28
R432
C451
C431
C441
R462
R442
Q461
Q451
C471
C481
Q471
Q481
R471
R481
R472
R482
X1
R752
C756
C455
C465
C755
C462
C452
R461
R452
R451
C464
C454
C6
FB1
C1
FB2
L2
C5
C12
L6
C8
L1
C13
R4
R5
C16
C17
R10
C405
C404
C409
R12
C27
R13
R14
C25
C23
C22
C24
L8
C21
C20
C19
R2
R1
JW1
12
C401
C412
C413
JW144
C406
C407
JW128
JW123
C719
C157
L151
C154
R152
C709
C708 C707 C706
CN701
C153
R153
R154
R151
JW70
R11
D719
C551
R155
JW53
JW72
JW52
IC401
R441
R431
C403
C402
R330
R332
R333
R331
C444
C434
JW127
C216
C21
5
JC401
JC402
C810
C820
R52
R54
C58
C57
C56
C55
C54
C53
R51
C155
JC151
C70
5
Q52
Q51
X51
C59
C60
R55
JC5
2
JC51
C63
R59
C29
JC53
C64
FB402
FB401
C408
C26
C3
L3
0.47
μH
560
μH
560
μH
C2
L4
3.3
μH
3.3
μH
IC1
C330
C331
VDR1
J1
Q441
Q431
R6
R61
R60
IC51
C18
C461
C7
L7
J330
C9
R3
R3
R57
R56
R53
JW60
C51
D704
D70
3
D702
D701
D153
10
1
50V
1
50V
47
16V
10k
10
50V
10
50V
10
50V
10k
10k
RT1N140C
RT1N140C
10
50V
10
50V
LTC614TK
LTC614TK
220
220
10k
10k
4MHz
150
0
1
1
0.001
1
1
1k
10k
1k
100p
100p
0.001
0.001
0.22
0.01
2.2
0
0
0.47
0.1
33k
1
1
10p
22
0.1
100
100
0.1
0.01
0.01
0.1
1
0.01
0.01
470k
470k
47
16V
220
10V
0.1
1
50V
1
50V
0.001
0.001
0
0.0047
470
18p
18p
18p
18p
15P
2.2
50V
12k
12k
470
4.7k
MAZ8180GM
0.001
2.2k
BD3447FV-E2
220
220
1
50V
1
50V
1k
10k
10k
1k
100p
100p
1
50V
1
50V
0
0
0.0022
0.0022
33
100k
0.1
0.1
0.1
0.1
0.1
0.1
10
0.0047
0
18p
RT1N141C
ISA1235AC
8.664MHz
16p
15p
0
0
0
47p
10k
330p
0
47p
10p
0.1
4p
2p
100p
100p
(ANTENNA IN)
LTC614TK
LTC614TK
68k
1k
10k
TDA733013TR
12p
10
50V
6p
6P
0.1
-47
16V
UDZSUSTE-176.8B
UDZSUSTE-176.8B
UDZSUSTE-176.8B
UDZSUSTE-176.8B
UDZS
USTE-176.8B
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
E14
E15
E16
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
L-CLK
L-CE
L-DA
SIR
KEY0
KEY1
NOSE-SW
RE-0
RE-1
I2C-SCL
I2C-SDA
I2C-SDA
I2C-SDA
BEEP
STB
DIAG
ATT
RDS_ON
DAVN
I2C-SCL
I2C-SDA
I2C-SCL
SACLK
SADATA
SAIN
VSM
KEY-1
KEY-0
CE-LCD
DATA-LCD
CLK-LCD
PANEL
+B
SIRCS
RE-1
D-GND
AUX-RCH
AUX-LCH
RE-0
AUX-GND
KEY-GND
REAR/SUB AUDIO OUT
BUS AUDIO IN
FRONT AUDIO OUT
RDS
(CHASSIS)
(3/3)
(CHASSIS)
(CHASSIS)
ELECTRICAL VOLUME,
INPUT SELECT
DECODER
B+ SWITCH
Q51,52
PLL
∗
2.2μH
1μH (BT2750)
TEF6607T
(BT2750)
0
100
∗
FB1
0
∗L2
∗R3
0
FB2
(BT2700:US,CND/BT2750:E,MX,IND)
(BT2700:AEP,IT,UK/BT2707E/BT2750:EA)
∗
C6
(BT2700:US,CND/BT2750:E,MX,IND)
(BT2700:AEP,IT,UK/BT2707E/BT2750:EA)
(BT2700:AEP,IT,UK/BT2707E/BT2750:EA)
R
L
R
L
R
L
MUTING
Q431,441,451,461,471,481
(BT2700:AEP,IT,UK/BT2707E)
(BT2750)
(BT2750)
∗
BT2700:US,
CND
(BT2750)
BT2700:AEP,IT,UK/
BT2707E/BT2750
(BT2700:AEP,IT,UK/BT2707E)
9p
10p
(BT2700/BT2707E)
(Page
26)
(Page
25)
(Page
29)
MEX-BT2700/BT2707E/BT2750
MEX-BT2700/BT2707E/BT2750
28
28
4-5. PRINTED WIRING BOARD - KEY Board -
•
: Uses unleaded solder.
• See page 23 for Circuit Boards Location.
LED952
LSW903
IC971
LED931
LSW906
S901
LSW901
LSW904
LED951
LED941
R975
C971
LED953
LSW912
R944
R905
R904
R907
R908
LSW908
R971
R902
LSW909
LSW910
R942
LSW911
LSW905
LSW907
R915
R954
R953
LED944
LSW913
R947
R1942
R1943
LSW914
C991
C990
R946
LSW902
LCD901
LIQUID CRYSTAL DISPLAY
CAT
BTM
BTM
PTY
AF/TA
BTM
(BT2700: US, CND/BT2750: MX)
(BT2700: AEP, IT, UK/BT2707E)
(BT2750: E, EA, IND)
MODE
SEEK–
SEEK+
BT
LED951-953
(VOLUME)
SOURCE
OFF
J901
RE901
C921
C922
R922
R921
R979
R978
R977
R977
R1944
R982
R974
D982
D981
R981
FB903
D993
R933
R931
R932
Q932
R909
D992
R913
R949
R914
R952
R950
D991
D994
IC901
R910
CN901
Q931
R934
R901
R992
D903
Q995
C986
C984
R986
C983
R985
R984
C981
R987
R951
R912
R948
R943
R903
R1941
R945
R973
D985
D986
R990
C997
C999
C998
C995
C996
R911
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
A1
A2
K1
K2
S1
S2
(LCD BACK LIGHT)
A1
A2
K1
K2
S1
S2
LSW901 - 914
LED944
LED931, 941, 944,
LED951–953
A
K
A
K
A
K
A
K
A
K
–ALBUM
1
ALBUM+
2
REP
3
SHUF
4
MIC
5
PAUSE
6
LED941, S901
1-878-799-
11
(11)
KEY BOARD
(COMPONENT SIDE)
DSPL
SCRL
SCRL
PUSH SELECT /
1
52
2
1
3
4
PUSH SELECT /
ROTARY ENCODER
RE901
(VOLUME)
AUX
A
MAIN BOARD
CN701
1-878-799-
11
(11)
KEY BOARD
(CONDUCTOR SIDE)
3
4
5
2
1
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
9
10
11
DISC SLOT
ILLUMINATION
Ref. No. Location
• Semiconductor
Location
D903
F-8
D981
F-8
D982
E-7
D985
F-9
D986
F-9
D991
F-9
D992
F-9
D993
F-9
D994
F-9
IC901
F-6
IC971
C-11
LED931 B-10
LED941 B-2
LED944 B-6
LED951 B-3
LED952 C-4
LED953 C-3
Q931
F-10
Q932
F-10
Q995
F-3
Note: Refer to the servicing notes “NOTE FOR REPLACEMENT OF THE
AUX JACK (J901)” (See page 5), if replacing the Ref. No. J901.
(Page 24)
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