Schematic Diagram - Main Section (1/3) - Sony DSX-A50BT Service Manual

5-3.

SCHEMATIC DIAGRAM - MAIN Section (1/3) -

1 2 3
A
B
(E, IND)
PW1
FRONT LCH+
FRONT LCH-
REAR LCH+
C
REAR LCH-
REAR RCH+
REAR RCH-
FRONT RCH+
TO
FRONT RCH- CN102
REM OUT
MAX 0.4A
D
ACC
FU101
10A
32V
GND
BATT
(AEP , UK)
E RL+ RL-
FL+ FL-
FR+ FR-
RR+ RR-
J101
(REMOTE IN)
F TO
CN102
PW1
FL+ FL-
RL+ RL-
RR+ RR-
G FR+ FR-
AMP REM
MAX 0.3A
AMT REM
ACC
H
GND BATT
ACC GND
AMT REM
BATT
I
J
K
L
M
DSX-A50BT
• See page 26 for IC Block Diagrams.
4 5 6 7
MAIN BOARD (1/3)
1 2 3 4 5 6 7
CN102
16P
FL+ 1
RL+ 2
RR+ 3
FR+ 4
AMP-REM 5
ANT-REM 6
ACC 7
GND 8
FL– 9
RL– 10
RR– 11
FR– 12
TEL-ATT 13
L401
ILL 14 140uH
TEST 15 (AEP , UK)
+B 16
IC B/D
D402
+B 17 GN1G
+B 18 IC401
+B 19
REGULA TOR
IC401
LV56831P-E
TO
CN301
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
FB103
FB102
FB101
C408
R403
AUDIO_EN 10
10k
SYS_EN
AMP_REM
C403 R404 C407 D404
10 10k 10 GN1G
C41 1 C410
220 10
16V
R106 R107
1k 1k
R1 14 R1 17 Q109
10k 10k DRA51 14E0L
R1 18
22
13.9 0
D1 16
DA2J10100L
0
13.9
6.5 0
C105
Q103 47 Q1 10
DRC51 14E0L 25V DRC51 14Y0L
6.5 BA TTERY CHECK
D1 14
Q109, 110
RKZ18B2KGP1
MUTING CONTROL
0
Q101 R111
DRC5144E0L 47k
IC B/D
6 5 4
C101
IC402
0.47
Q104
0 +9V REGULA TOR
2SC4154TP-1EF
C102 IC402
0.47 S-1142B90I-E6T1U
3.3
1 2 3
R1 16
C1 10
R1 12 47k
0.01 4.7k
C106
1000
6.3V
R407
C409 10k
0.5
Q106 1
2SC3052EF-T1-LEF
ACCESSORY CHECK
0
R105
220k
Q101, 104
BACK UP VOLT AGE DETECT
4.9 3.3
IC B/D
5 4
IC102
+3.3V REGULATOR
IC102
MM1836A33NRE
1 2 3
4.9
8 9 10 11
IC B/D
IC304
POWER AMP
IC304
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
LV47011P-E
C319
22
16V
R322
220
R323 220
R324 220
R325
220
R356 R338 R346
C332
100 100 4.7k
1
R337
R334 220
10k
C401
3300
16V
4.1
R326
220
0
C406
1
Q304 C310
C331
DRC51 14E0L 10
0.1
C412 MUTING
SWITCH
0.22
C330
R336
0.22 150
IC301
C318 C329
0.22 47p
LINE AMP
IC301
BA4560RFVM-TR
3
1
D403
R301 C301
GN1G 3
12k 220p
2
3
3
D401
GN1G
4
V-
R305
C404
4.7k
1
R302 R304
10k 100k
C610
R609
2.2
22k
BT_LCH_N
BT_LCH_P
R604
R335 C61 1
22k
47k 2.2
R606 C614
33k 100p
R607 C615
33k 100p
C612
R605
2.2
22k
BT_RCH_P
C613
R608
2.2
22k
BT_RCH_N
C340
1
C122
100
16V
C1 19
1
MAIN
1 (Page 18)
BOARD
(2/3)
17 17
12 13 14 15
Q301 Q302 Q303 Q305
LTC614TUFP8T106 LTC614TUFP8T106 LTC614TUFP8T106 LTC614TUFP8T106
MUTING MUTING MUTING MUTING
0 0 0 0
0 0 0 0
R327 R328 R331 R332
R329 R330 R333
10k 10k 10k 10k
220 220 220
C313 C314 C317
10 10 10
IC302
LINE AMP
IC302
BA4560RFVM-TR
8.4 3
8 1 8
V+ V+
R310 C304
3 3
12k 220p
7 2 7
C303 R308
3 3
220p 12k
6 3 6
3
5 4 5
V-
R306 R309 R313
4.7k 10k 4.7k
R307 C302 R31 1 R312
100k 0.1 10k 100k
C617 100p
R61 1 33k
CENTER VOL T AGE GENERA TOR
C618
0.1
3
3
4 3 2 1
V-
3
IC602
C306
10
MIX AMP
IC602
V+ BA4560RFVM-TR
5 6 7 8
R610 33k
C616 100p
R514
10
DSX-A50BT
16 17 18 19
J301
4P
L
FRONT
AUDIO OUT
R
L
REAR
AUDIO OUT
R
R339
0
J303
TU251
(ANTENNA IN)
TUX-DSP02
C257 C255
(TUNER UNIT)
47 0.1 R259
25V 0
0
RF_ANT_IN
1
CAM251
RF_GND R252
2 0
2
AUDIO_OUT_L
3
R257 0
2 (CHASSIS)
AUDIO_OUT_R
4
R260 0
3.3 HIT2_RST
RSTN
5
2.6 R262 0 HIT2_SCL
SCL
6 R263 0
2.4 HIT2_SDA
SDA
7
8.4
+8.5V
8
POWER_GND
9
L251
4.7uH
R318
10
8.4
3
C308 R319
3
220p 12k
3
R314 R320
4.7k 10k
R315 C305
100k 10
R321
10
IC303
IC303
BA4560RFVM-TR
8.4
1 8
V+
R316
3
10k
2 7
3
3 6
3
4 5
V-
R317 C309
12k 10
MAIN
2 (Page 19)
BOARD
(3/3)