Sony MEX-BT5700U / MEX-BT5750U Service Manual ▷ View online
MEX-BT5700U/BT5750U
37
MUTING
IN3
12
SVR
VP
10
PGND1
8
VP2
6
SCL
4
SDA
2
IN4
14
PGND3
18
ACGND
16
VP1
20
STB
22
PGND4
24
RST
26
REG1
30
RES-CAP
28
GND
32
REG5
34
BU-CUP
36
OUT3– 3
PGND2/TAB 1
OUT3+ 5
MUTING
OUT1– 7
OUT1+ 9
IN1
REF
11
SGND 13
MUTING
OUT2+ 17
OUT2– 19
IN2 15
MUTING
TEMPERATURE & LOAD
DUMP PROTECTION
AMPLIFIER
TEMPERATURE & LOAD
DUMP PROTECTION
VOLTAGE REGULATOR
PROTECTION/
DIAGNOSTIC
CLIP DETECT/
DIAGNOSTIC
ENABLE
LOGIC
STANDBY/
MUTING
IIC-BUS
INTERFACE
OUT4+ 21
OUT4– 23
DIAG 25
SW2
(REGULATOR & SWITCH BLOCK)
27
SW1 29
REG3 31
REG4 33
VP 35
REG2 37
RESET
REGULATOR 1
REGULATOR 3
REGULATOR 4
REGULATOR 2
REGULATOR 5
IC300 TDA8588AJ/N2/R1
MEX-BT5700U/BT5750U
38
21
22
29
30
23
24
40
FIL
GND
SDA
SCL
OUT
-FR
OUT
-FL
OUT
-RR
OUT
-RL
SUB-R
SUB-L
SAOUT
SADA
MIN1
MIN2
EBIAS2
DS2-R
DS1-R
DS3-R
SACLK
39
38
37
VCC
36
27
28
25
26
31
32
33
34
35
20
19
12
11
18
17
1
BUS-R
BUS-L
TU-R
TU-L
CD-L
AUX-R
AUX-G
AUX-L
PD-R
PD-G
PD-L
FP1
FN2
FP2
EBIAS1
DS2-L
DS1-R
DS3-R
FN1
2
3
4
CD-R
5
14
13
16
15
10
9
8
7
6
I2C BUS
LOGIC,
VCO
FADER
FADER
FADER
HPF
LPF
GND
ISO AMP
GND
ISO AMP
180
°/0°
3 BAND P-EQ (TONE CONTROL)
7 BAND
SPECTRUM ANALYZER
/LEVEL METER
EFFECT
VOLUME/MUTE
INPUT GAIN
INPUT SELECTOR (3 SIGLE-END AND 3 STEREO IS O)
FADER
FADER
SPEANA
LVL METER
LVL METER
SPEANA
GND
ISO AMP
GND
ISO AMP
GND
ISO AMP
GND
ISO AMP
IC401 BD3447AFV-E2
MEX-BT5700U/BT5750U
39
1
2
3
6
5
4
17
18
19
20
7
10
15
16
12
11
14
13
8
9
LIFT AMP
LIFT AMP
CIN (L)
OUT (RL)
RL-
RL+
VCC
RR+
RR-
OUT (RR)
CIN (R)
GND (R)
COUT (R)
OUT (FR)
FR-
FR+
REF
FL+
FL-
OUT (FL)
COUT (L)
GND (L)
SIGNAL AMP
FRONT-RIGHT
REAR-RIGHT
FRONT-LEFT
REAR-LEFT
SIGNAL AMP
SIGNAL AMP
SIGNAL AMP
1
2
3
4
5
6
7
8
9
10
14
13
12
11
VCC
BUS ON
LINK OFF
CLK OUT
D
ATA
O
U
T
D
ATA
IN
BUS RESET
BUS DA
TA
VREF
BUS CLK
GND
BUS ON IN
BUS ON OUT
RESET
RESET
SWITCH
1
VIN
2
SW
3
RT
4
GND
6
INV
7
EN/SYNC
5
FB
DRIVER
CURRENT LIMIT
ERROR
AMP
SOFT
START
PWM
COMPARATOR
THERMAL
SHUT DOWN
LATCH
OSC
SYNC
VREF
IC462 NJM2792V (TE2)
IC601 BA8271F-E2
IC602 BD9781HFP
MEX-BT5700U/BT5750U
40
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
1
2
GND
OC
IN
CHARGE
PUMP
3
IN
4
EN
DRIVER
CURRENT
LIMIT
THERMAL
SENCE
UVLO
CS
8
7
7
5
6
OUT
OUT
OUT
OUT
+ –
6
7
5
8
B
+
–
2
1
3
4
A
A OUT
A IN–
A IN+
VEE
VCC
B OUT
B IN–
B IN+
1
IN–
2
F.
B
3
GND
4
OUT
8
REF
7
CT
6
CS
5
V+
OSC
VREF
U. V. LO
L. O
S. C. P
PWM
ER
•
AMP
1
NO
4 COM
5 V+
6 IN
2
GND
3
NC
3
1
1Y
1Z
2E
GND
VCC
1E
2Z
2Y
4
2
5
7
6
8
IC650, 681, 1001, 1002 TK11133CSCL-G
IC802 TPS2051BDRG4
IC851 NJM2903M
IC852 NJM2377M (TE2)
IC1003 TS5A3159DCKR
– KEY Board –
IC904 SN74LVC2G66DCUR
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