Schematic Diagram - Main Section (3/3) - Sony DSX-M50BT Service Manual

DSX-M50BT
5-7.

SCHEMATIC DIAGRAM - MAIN Section (3/3) -

1 2 3
MAIN BOARD
A
CN102
16P
B
PW1
FL+ 1
FRONT LCH (+) 1 9
RL+ 2
FRONT LCH (–)
RR+ 3
REAR LCH (+) 2 10 FR+ 4
REAR LCH (–) AMP-REM 5
REAR RCH (+) 3 11
ANT-REM 6
REAR RCH (–)
ACC 7
FRONT RCH (+) 4 12 GND 8
TO
C
CN102
FRONT RCH (–) FL– 9
REM OUT
5 13
RL– 10
MAX 0.4A
RR– 11
6 14 FR– 12
TEL-ATT 13
ACC 7 15
ILL 14
TEST 15
GND 8 16 +B 16
D
BATT +B 17
+B 18
FU101 +B 19
10A
32V
E
F
C406
1
G
H
I
J
DSX-M50BT
• See page 21 for IC Block Diagrams.
4 5 6 7
(3/3)
IC B/D
IC401
REGULATOR
IC401
LV56831P-E
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
D404
GN1G
R403 C405 C407 D405
10k 47p 10 GN1G
C408
10
C403 C106
10 1000
6.3V
C410 C411
10 220
16V
8 9 10
IC B/D
IC304
POWER AMP
IC304
1
PURE5001H-4WX
D402
GN1G
R114 R117
10k 10k
L401
140uH
D114
Z2J18000L
IC B/D R111
47k
6 5 4
IC402
C101
0.47
+9V REGULATOR
IC402
S-1142B90I-E6T1U
C102
0.47
1 2 3
R116
47k R112
4.7k
C638 C412 C401 D401 D403
47p 0.22 3300 GN1G GN1G
16V
C409 R405
1 100k
R407
10k
IC B/D IC102
+3.3V REGULATOR
IC102 DZ2J075M0L
MM1836A33NRE
C110
5 5
0.01
1 CONT VIN 5
2 GND
3.3
3 NOISE VOUT 4
C122
100
16V
C119
1
R105
220k
20 20
11 12 13
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
R118 R334 C350 C319 C318 C404 C330
22 10k 1 10 0.22 1 0.22
16V
Q109
LTA014EUBFS8TL
14 0
14
Q109, 110
MUTING CONTROL
0
Q304
LTC014EUBFS8TL
14
MUTING SWITCH
0
Q110 C328
LTC014YUBFS8TL 1
C105 C349
47 1
25V
R106 R107
1k 1k
C333
D106 D107 47p
Z2J18000L
0 C340
1
6.8
6.8
Q103
LTC014EUBFS8TL
BATTERY CHECK
0
Q101 Q104
LTC044EUBFS8TL 2SC4154TP-1EF
0
Q106
2SC3052EF-T1-LEF
3.2
ACCESSORY CHECK
Q101, 104
0.6
BACK UP
VOLTAGE DETECT
0
14 15 16
20 21 22 23 24 25
R356
100
C320 C322 C324 C326
1 1 1 1
C321 C323 C325 C327
1 1 1 1
R325 R324 R323 R322
220 220 220 220
C332
(Page
1
1
18)
2
3
1
R337
0
4
5
MAIN
BOARD
6
(1/3)
7
3.7 8
9
C329 R336
47p 150
20
19
(Page
18
19)
17
3
16
15
MAIN
14
BOARD
(2/3)
13
12
11
10