Sony MEX-BT5700U / MEX-BT5750U Service Manual ▷ View online
MEX-BT5700U/BT5750U
MEX-BT5700U/BT5750U
21
21
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM - AUDIO Section (1/2) -
• SIGNAL PATH
: USB
: CD PLAY
: AUDIO
: Bluetooth
: MIC
• R-ch is omitted due to same as L-ch.
CN902
(USB)
CN670
D560
2
3
CD MECHANISM
DECK
(MG-101Z-188//Q)
SENSOR
BOARD
SERVO BOARD
BT BOARD
(PATTERN ANTENNA)
MIC1001
AU_LCH
RXD
CD_ON
CDM_ON
VBUS_ON
54 MC_TX
28 CD_ON
29 CDM_ON
86 VBUS_ON
28 CD_ON
29 CDM_ON
86 VBUS_ON
TXD
USB_D-
USB_D+
D-
D+
53 MC_RX
XSYS_RST
SYS_RST
SYS_RST
BU_CHECK
BU_CHECK
A_ATT
AU_RCH
R-CH
LCH_P
RCH_P
R-CH
LCH_N
RCH_N
R-CH
Z_MUTE
EJECT_OK
WAKE_UP
60 Z_MUTE
68 EJECT_OK
68 EJECT_OK
57 FLS_RX
58 FLS_TX
58 FLS_TX
56 WAKE_UP
97 BT_MIC_SEL
49 MD2
80 BT_MIC_DETECT
51 MD0
D493
D494
D1005
5
3
7
FLASH-W
(NC)
SYNC/NONSYNC
TX
4
RX
1
RESET
INVERTER
Q501
MUTING
CONTROL
Q401
76 FLASH_EN1
2
CLK
59 FLS_CLK
INVERTER
Q502
MD_AUDIO_SEL
34
AT
T
25
MUTE
MUTING
CONTROL
Q1005
BT_AUDIO_SEL
37
SYSTEM CONTROLLER
IC501 (1/3)
MIC
+3.3V
+3.3V
MIC B+
MIC
B+ SWITCH
Q1001 - 1003
MIC INPUT
SELECT
IC1003
INVERTER
Q1004
J1001
MIC IN
MIC IN
SYSON
BTU_ACT
RESET
BTU_SYS_ON
94
BTU_ACTIVE
93
BTU_RESET
98
MASTER_TX
MASTER_RX
BTU_TX
20
BTU_RX
19
BT-L_P
BT-L_N
ATT
CD-L
A
MUTING
CONTROL
Q491, 492
DOOR_SW
B
FLASH-W
USB SELECT
SWITCH
IC904
USB ON/OFF
CONTROL
Q901
(Page 22)
(Page 23)
MEX-BT5700U/BT5750U
MEX-BT5700U/BT5750U
22
22
R-CH
RDS DECODER
IC50
MPX
16
I2C_SDA
12
I2C_SCL
11
INTN
10
9
X50
8.664MHz
XTO
XTI
15
16
X1
4MHz
XTAL2
XTAL1
8
LOUT
A
C
ELECTRICAL VOLUME, INPUT SELECT
IC401
SYSTEM CONTROLLER
IC501 (2/3)
OUT-FL 34
OUT-RL 32
SUB-R 31
R-CH
R-CH
FL+
FL–
4
1
9
FR+
FR–
2
12
RL+
CN701 (1/2)
POWER AMP
IC300 (1/2)
RL–
RR+
11
10
3
RR–
R-CH
R-CH
MUTING
Q480
MUTING
Q450
MUTING
Q420
• SIGNAL PATH
: TUNER
: CD PLAY
: AUDIO
: AUX IN
: BUS AUDIO
• R-ch is omitted due to same as L-ch.
IN-RL
11
IN-FL
12
SDA
2
SCL
4
OUT-RL- 7
OUT-RL+ 9
OUT-FL- 3
OUT-FL+ 5
R-CH
J400 (2/2)
FRONT
AUDIO OUT
L
REAR
AUDIO OUT
R
L
R
DIAG
25
STB
22
BEEP
16
J901
AUX
9
ROUT
R-CH
SDA
19
SCL
18
RSSI
14
PLL
IC1
L6
FM MIX
FMIN1
4
FMIN2
3
AMPRFIN
1
AMSELIN2
29
AMSELIN1
28
AMSELOUT1
31
AMSELOUT2
32
MPXIN
12
MPXOUT
13
STB
82
DAVN
35
VSM
7
I2C_SIO
8
I2C_SCK
96
ZAPPIN_BEEP
67
DIAG
66
AMP_STB
BEEP
J1
(ANTENNA IN)
15
CD-L
6
LCH_P
CD-L
ATT
BT-L_P
16
LCH_N
BT-L_N
15
AUX-L
9
TU-L
4
PD-L
10
SDA
38
SCL
37
PD-R
12
(BT5700U: AEP, UK)
95
J401
SUB OUT
(MONO)
69
SA_OUT
36
SA_IN
70
SA_CLK
SADA
28
SACLK
27
SAOUT
29
R-CH
J400 (1/2)
BUS AUDIO
IN
L
R
BUS-L
2
LINE
AMP
AMP
IC481
BOOST
AMP
IC462
5-2. BLOCK DIAGRAM - AUDIO Section (2/2) -
(Page 21)
(Page 23)
MEX-BT5700U/BT5750U
MEX-BT5700U/BT5750U
23
23
FLUORESCENT
INDICATOR
TUBE
ND001
FLUORESCENT INDICATOR TUBE DRIVER
IC901
SYSTEM CONTROLLER
IC501 (3/3)
S680
RESET
RESET
52
NOSE_SW
1
S701, 917, 918
(FRONT PANEL KEY)
S902 - 916
(FRONT PANEL KEY)
RC_IN1
32
RC_IN0
39
J590
REMOTE IN
(VOLUME)
X501
32.768kHz
12
11
X1A
X0A
90
91
X502
7.92MHz
X1
X0
83
BU +3.3V
AREA_SEL2
S502
SIRCS
2
REMOTE CONTROL
SIGNAL RECEIVER
IC903
LED DRIVE
Q905
LED917 - 920
(RING ILLUMINATOR)
LED901 - 916, 921, 922
(KEY ILLUMINATION)
9 RE_IN0
10 RE_IN1
ROTARY
ENCODER
RE901 (2/2)
43 KEY_ACK0
44 KEY_ACK1
SYS_RST
BU +3.3V
RESET SIGNAL
GENERATOR
IC682
PANEL +3.3V
RE901 (1/2)
RESET SIGNAL
GENERATOR
IC902
10k
9k
FREQUENCY
SELECT
SYS_SI 30
SYS_SO 29
MAS_IF 1
DSPL_TX
47
DSPL_RX
46
DSPL_IF
40
LAT_TA2_OUT
24
BK_TA1_OUT
26
GCP_TA4_IN
19
GCP_TA0_OUT
28
FL_CLK_OUT
47
FL_CLK_IN
21
FL_CLK_IN
35
FL_DAT1
33
FL_DAT2
22
FL_DAT3
45
RESET 10
KEY_1 85
KEY_2 86
KEY_2 86
DSPL_RESET
41
RING
98
LED701
LED702
(DOOR INDICATOR)
DOOR_SW
FLASH-W
B
ACC
13
7
TEL-ATT
AMP-R
AMT-R
AMT-R
5
6
6
+B
19
BU B+
REGULATOR
IC300 (2/2)
CN701 (2/2)
AUDIO_8.5V
30
VP2 6
ANT-REM
AUDIO +8.5V
27
AMP-REM 29
MECH_6V
33
CD MECHA +6V
PANEL_9V
34
ILL +10.4V
ILL +10.4V
FL_F(+)
FL_F(-)
FL-VDD+55V
VBUS
BU_5V
37
BU +3.3V
BU +5V
VP1 20
SERVO_3.3V
31
CD +3.3V
+3.3V
REGULATOR
IC681
ACCESSORY
CHECK
Q704
ACC_IN 23
TEL_ATT 24
RDS +3.3V
B+ SWITCH
Q50, 51
BT +3.3V
+3.3V
REGULATOR
IC1001
MIC +3.3V
+3.3V
REGULATOR
IC1002
VP 35
LEVEL SHIFT
Q703
BTU_POWER
FL_ON
92
PANEL +3.3V
+3.3V
REGULATOR
IC650
FLD_ON 22
2
DD_ON 78
RDS_ON 74
DC/DC CONVERTER
IC602, 851, 852,
Q811 - 813, 851 - 859,
T850
USB POWER
ON/OFF SWITCH
IC802
USB_OVER 87
USB_ON 77
(BT5750U: E)
(BT5700U: AEP, UK)
S501
(NOSE DETECT)
DOOR_SW
3
S901
(FRONT PANEL OPEN/CLOSE DETECT)
DOOR_IND
4
LED DRIVE
Q651, 652
ILL
14
DIMMER
DETECT
DETECT
Q702
ILL_IN 61
;
BU B+
D702
D703
TH600
BATTERY
CHECK
Q701
SONY BUS INTERFACE
IC601
UNI_SO
17
DATA_IN 9
UNI_SI
16
DATA_OUT 8
DATA_I/O
6
UNI_SCK
18
CLK_IN 11
CLK
4
BUS_ON
26
BUS_IN 12
BUS_ON
1
SYS_RST
27
KEY_IN0
38
RST 13
RST
2
BATT
3
4
5
2
6
7
CNJ600
BUS CONTROL IN
BU_CHECK 10
BUIN
81
XSYS_RST
BU_CHECK
CN671
5
7
FLASH-W
(NC)
TX
4
RX
PUSH ENTER/SOUND/
MENU/ /
KEY_PUSH 78
CNVSS 7
FSW_OUT 45
FSW_IN 5
C
STB
D650
X901
8MHz
XOUT
XIN
11
13
5-3. BLOCK DIAGRAM - PANEL, POWER SUPPLY Section -
(Page 21)
(Page 22)
MEX-BT5700U/BT5750U
MEX-BT5700U/BT5750U
24
24
• Circuit Boards Location
MAIN board
SENSOR board
SERVO board
KEY board
AUX board
– main unit –
– front panel –
BT board
ANTENNA board
SUB board
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
• f :
internal
component.
• C : panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• Power voltages is dc 14.4V and fed with regulated dc
• Power voltages is dc 14.4V and fed with regulated dc
power supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
( ) : CD PLAY
• Voltages are taken with a VOM (Input impedance 10
( ) : CD PLAY
• Voltages are taken with a VOM (Input impedance 10
M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
AUDIO
f :
TUNER
J
: CD PLAY
p : Bluetooth
c :
c :
USB
N :
MIC
L :
AUX
IN
a :
BUS
AUDIO
• Abbreviation
CND :
CND :
Canadian
model
EA :
Saudi
Arabia
model
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• W : Indicates side identifi ed with part number.
• f : Internal component.
•
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• W : Indicates side identifi ed with part number.
• f : Internal component.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts on the parts face side seen from
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.
Caution:
Parts face side:
(Conductor Side)
Pattern face side:
(Component Side)
Parts face side:
(Conductor Side)
Pattern face side:
(Component Side)
Parts on the parts face side seen from
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.
• Abbreviation
CND : Canadian model
EA
CND : Canadian model
EA
: Saudi Arabia model
• Indication of transistor.
C
B
These are omitted.
E
Q
Note: When the BT board or MAIN board (including BT board)
are replaced, it is necessary to operation. Refer to “IM-
PORTANT NOTE OF “INITIALIZING”” (see page 3) and
“BLUETOOTH FUNCTION CHECKING METHOD US-
ING A CELLULAR PHONE” (see page 4) on the servicing
notes.
PORTANT NOTE OF “INITIALIZING”” (see page 3) and
“BLUETOOTH FUNCTION CHECKING METHOD US-
ING A CELLULAR PHONE” (see page 4) on the servicing
notes.
Note: When the BT board or MAIN board (including BT board)
are replaced, it is necessary to operation. Refer to “IM-
PORTANT NOTE OF “INITIALIZING”” (see page 3) and
“BLUETOOTH FUNCTION CHECKING METHOD US-
ING A CELLULAR PHONE” (see page 4) on the servicing
notes.
PORTANT NOTE OF “INITIALIZING”” (see page 3) and
“BLUETOOTH FUNCTION CHECKING METHOD US-
ING A CELLULAR PHONE” (see page 4) on the servicing
notes.
Note:
The components identi-
fi
The components identi-
fi
ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
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