Sony MEX-BT3850U Manuale di servizio - Pagina 29

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Sony MEX-BT3850U Manuale di servizio
4-8.

SCHEMATIC DIAGRAM - MAIN Section (3/4) -

1
2
3
(BT38UW/BT3800U: US, CND/BT3850U)
A
FRONT LCH+
FRONT LCH-
REAR LCH+
REAR LCH-
REAR RCH+
REAR RCH-
FRONT RCH+
FRONT RCH-
B
AMP REM
MAX0.3A
TO
CN701
ATT
ANT REM
MAX0.1A
ACC
GND
BATT
C
(BT3800U: AEP, UK/BT3807U)
FU701
RL+
RL-
10A
32V
FL+
FL-
FR+
FR-
D
RR+
RR-
TO
CN701
FL+
FL-
RL+
RL-
E
RR+
RR-
FR+
FR-
ATT
AMP REM
MAX 0.3A
AMT REM
F
ACC
GND
BATT
ACC
GND
G
AMT REM
BATT
H
I
J
K
L
M
N
MEX-BT38UW/BT3800U/BT3807U/BT3850U
• See page 33 for IC Block Diagrams.
4
5
6
7
8
MAIN BOARD
(3/4)
CN701
(BT3800U: AEP, UK/BT3807U)
19P
1
2
3
4
5
6
7
FL+
1
RL+
2
RR+
3
FR+
4
AMP-R
5
ANT-R
6
R701
ACC
7
4.7k
GND
8
FL-
9
RL-
10
RR-
11
FR-
12
TEL-ATT
13
ILL
14
R303
C333
150
TEST
15
47p
+B
16
+B
17
+B
18
R301
R302
+B
19
0
0
L701
250uH
C702
0.22
1
C301
0.22
2
D701
C701
C703
D303
1N5404-C311-3
3300
0.22
1A4-A2
16V
4
5
6
7
8
9
10
11
C502
330
C503
6.3V
0.01
12
C327
C501
R506
0.01
0.1
10k
C476
47
Q471
16V
RT1N141C-TP-1
1
0
MAIN
13.8
BOARD
(1/4)
(Page
Q470, 471
MUTING CONTROL
27)
13.8
R470
22
13.8
0
D470
1SS355WTE-17
Q470
RT1P141C-TP-1
Q493
RT1P141C-TP-1
MUTING CONTROL
13
3.3
0
D472
MC2838-T112-1
3.3
14
15
16
Q490
RT1P141C-TP-1
MUTING CONTROL
35
3.3
0
3.3
R304
R309
0
4.7k
5
MAIN
BOARD
R305
(2/4)
47k
(Page
28)
36
9
10
11
12
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
C314
1
C315
47
16V
C311
C307
C334
1
1
2.2
C306
1
C302
C313
C312
0.22
0.22
0.22
D305
1A4-A2
D304
1A4-A2
C500
IC503
0.01
RESET SIGNAL GENERATOR
IC B/D
IC503
PST8228UL
5
4
IC502
3.3
4
VSS
VOUT
1
+3.3V REGULATOR
3.3
3
NC
VIN
2
IC502
TK11133CSCL-G
RTAN140C-T112A-1
1
2
3
C519
1000p
R500
100k
29
29
MEX-BT38UW/BT3800U/BT3807U/BT3850U
13
14
15
16
IC B/D
IC301
POWER AMP,
REGULATOR
31
32
33
34
35
36
37
IC301
TDA8588AJ/N2/R1
C325
0.01
C326
1000
10V
C322
47
16V
C471
100p
R483
10k
C321
C499
C470
10
100p
100p
16V
R480
R482
10k
10k
C320
Q482-485
0.01
MUTING
Q482
Q483
Q484
RTAN140C-T112A-1
RTAN140C-T112A-1
RTAN140C-T112A-1
0
0
0
0
0
0
0
0
Q480
MUTING
IC401
IC B/D
ELECTRICAL VOLUME, INPUT SELECT
IC401
BD3447AFV-E2
DS3_L
21
20
R306
R494
R490
DS3_R
R457
0
220
220
0
4.1
4.1
DS1_L
22
19
DS1_R
4.1
4.1
C480
C482
C485
DS2_L
23
18
10
10
10
DS2_R
R456
50V
50V
50V
0
EBIAS
24
17
EBIAS
4.1
ZAP_BEEP
25
16
NCO
NCO
26
15
NCO
R469
0
0
27
NCO
14
R468
SA_CLK
0
0
4.1
ZAP_BEEP
28
13
SA_DA
4.1
BT_LCH
29
12
SA_OUT
4.1
NCO
30
11
OUT_SLCH
4.1
BT_RCH
31
10
OUT_SRCH
4.1
4.1
AUX_LCH
32
9
OUT_RLCH
4.1
33
AUX_GND
8
OUT_RRCH
4.1
4.1
AUX_RCH
34
7
OUT_FLCH
4.1
4.1
CD_LCH
35
6
OUT_FRCH
8.5
4.1
CD_RCH
36
5
VCC(8.5V)
I2C_SCK
4.1
4.1
TU_LCH
37
4
I2C_SCK
I2C_SIO
4.1
4.1
C415
C414
TU_RCH
38
3
0.1
100
I2C_SIO
16V
4.1
BUS_LCH
39
2
GND
4.1
4.1
BUS_RCH
40
1
FIL
C413
10
50V
MAIN
6
BOARD
(4/4)
(Page 30)
17
18
19
20
21
CN410
3P
1
SUB_OUT
2
GND
3
SUB_OUT
J901
6P
L1
L
BUS AUDIO
IN
R1
R
L2
L
REAR
AUDIO OUT
R2
R
L3
L
FRONT
AUDIO OUT
R3
R
(CHASSIS)
C473
C475
100p
100p
R485
C474
10k
100p
R489
1k
C472
R479
100p
10k
R484
R478
10k
10k
R929
0
Q485
RTAN140C-T112A-1
0
0
D118
MAZ8068GMLS0
R460
R464
47k
0
8.5V
7
R461
C459
GND_1
0
47p
MAIN
TU_LCH
R463
BOARD
0
TU_RCH
(2/4)
R462
(Page 28)
1.5k
C460
D119
1
MAZ8068GMLS0
R106
C930
C464
2.2k
1000p
1
C486
R472
50V
2200p
1k
C463
1
C487
50V
2200p
R473
1k
C100
2.2
50V
C458
1
50V
C457
1
FB14
50V
C455
FB15
1
C456
1
J401
SUB OUT
(MONO)