Read Sony CMT-DH70SWR / SA-WDH70SWR Service Manual online
SA-WDH70SWR
SA-WDH70SWR
8
8
3-2. SCHEMATIC DIAGRAM - AMP Section -
• See page 6 for IC Block Diagram.
CN62
PT
A
BOARD
B
CN63
PT
BOARD
IC B/D
3.6
3
12.1
5.3
5.2
12.1
4.9
4.3
12.1
0
0
0
1.3
0.7
0.7
0
0
12.1
12.1
0
11.2
0
1.3
0.7
0
11.4
11.2
0
0.2
0.8
9.9
-2.5
11.2
0
0
0.7
0.7
0
12.1
0
0
11.2
12.1
19.4
0.1
0.1
11
.2
11
.4
1.1
-43.5
12.1
0
0
-43.8
43.8
2
0.4
0.4
11.4
0.7
0.7
1k
R127
100k
R126
2SC3052EF-T1-LEF
Q125
0
R144
2SC3052EF-T1-LEF
Q127
10k
R154
2SC3052EF-T1-LEF
Q130
1k
R131
50V
2.2
C128
0.22
CP125
7
6
5
4
3
2
1
13
12
11
10
9
8
STK404-130S
IC125
PT
-1
PT
-2
SW IN
SW IN NF
SUB
-PRE
+PRE (12V)
-VCC
+VCC
-RE
+RE
2SA2026
Q131
100k
R128
R174
2.2k
R185
47k
R184
22k
R180
100
R178
10k
C151
100
16V
R173
100k
R195
22k
1
2
2P
CN127
SP-OUT
SP-GND
C147
2200p
R169
10k
R164
10
Q137
2SC3052EF-T1-LEF
Q135
2SC3052EF-T1-LEF
Q133
2SC3052EF-T1-LEF
16V
47
C132
C145
0.1
C146
0.1
C139
47
50V
10
R163
10
R166
10
R165
C134
3p
0.22
C127
0.22
C130
56k
R133
JW125
R192
10k
L125
R168
220
R170
4.7k
10k
R176
0.022
C153
47k
R129
R188
47k
R189
47k
2SC3052EF-T1-LEF
Q138
C163
4.7
50V
C164
10
50V
0
R125
0.22
C143
R208
10k
R209
4.7k
R210
470
R199
4.7k
R204
47k
C167
47
50V
R206
100k
R201
10
R203
10
R205
10
C158
330
25V
1.5k
R130
1k
R145
1k
R167
3.3k
R132
KTA1273-Y-AT
Q139
82k
R137
100k
R138
0.047
C144
R191
22k
R194
82k
R193
100
16V
100
C148
R172
2.2k
R140
15k
15k
R146
R153
15k
R148
15k
R147
15k
R183
47k
R177
47k
35V
470
C162
47k
R175
15k
R181
R179
100k
R171
10k
MA111-TX
D129
MAZ8051GMLS0
D138
R214
22k
50V
1
C166
22k
R212
R215
22
220k
R213
R216
22
220k
R211
50V
1
C125
I
O
G
KIA7812API-U/PF
IC126
C152
0.1
C155
0.1
2W
4.7k
R158
MAZ8120GMLS0
D126
16V
100
C140
C136
0.1
C135
0.1
100V
22
C137
RY125
ISA1235AC1TP-1EF
Q132
1
2
3
4
5
6
6P
CN128
AC-1
AC-1
GND
GND
AC-1
AC-1
2SC3052EF-T1-LEF
Q140
2SC3052EF-T1-LEF
Q142
2SC3052EF-T1-LEF
Q141
1N4002-A2
D139
MA2J1110GLS0
D128
D137
MA2J1110GLS0
D130
MA2J1110GLS0
1
2
3
4
5
5P
CN129
AC-2
AC-2
GND
V-SUB
RELAY
1N4002-A2
D143
1N4002-A2
D142
1N4002-A2
D140
1N4002-A2
D141
1N5402-C532-2
D131
1N5402-C532-2
D132
1N5402-C532-2
D133
1N5402-C532-2
D134
E
ET125
1
2
3
3P
CN131
POWER-RELAY
V-SUB
GND
C149
16V
470
Q136
2SC3052EF-T1-LEF
10V
47
C165
D135
MA2J1110GLS0
1
2
3
4
5
6
CN125
3P
IN
IN-GND
POWER-ON
GND
FAN-
FAN+
C154
100
16V
C156
4700
63V
C157
4700
63V
R182
22k
R161
680
R134
R197
100k
0.0047
C129
0
R202
4.7
R190
33
R142
33
R141
33
R150
33
R151
33
R155
33
R156
R149
15k
56k
R136
50V
10
C138
Q129
2SC3052EF-T1-LEF
MAZ8120GMLS0
D127
Q128
2SC3052EF-T1-LEF
C141
0.1
C142
1
Q126
2SC3052EF-T1-LEF
MA2J1110GLS0
D125
10k
R152
4.7k
R157
47k
R162
47k
R159
22k
R139
4.7k
R160
1.5k
R143
22k
R135
+12V REGULATOR
IC126
IC125
POWER AMP
(CHASSIS)
AMP BOARD
SP101
1
2
3
FAN MOTOR DETECT
Q140 -142
(SUBWOOFER)
DRIVE
FAN MOTOR
Q138, 139
RELAY DRIVE
Q136, 137
DETECT
TEMPERATURE
PROTECTER
DETECT
OVER VOLTAGE
LINE AMP
FILTER AMP
FILTER AMP
OVER LOAD
DETECT
5W
SPR-39MVWF
D115
1k
R116
22k
R118
22k
R120
22k
R119
1k
R117
1
2
3
3P
CN115
POWER-RELAY
V-SUB
GND
1.5k
R115
LED BOARD
Q116
2SC3052EF-T1-LEF
LED DRIVE
Q115
2SC3052EF-T1-LEF
LED DRIVE
/
(RED : ST
ANDBY)
(GRN : POWER ON)
J121
20k
RV121
50V
4.7
C121
1k
R122
1
2
3
4
5
6
6P
CN121
IN
IN-GND
POWER-ON
GND
FAN-
FAN+
1
2
3
3P
CN122
FAN+
FAN-
FAN+
2.2k
R123
1k
R121
INPUT BOARD
M101
M
(FAN)
INPUT
SUBWOOFER
LEVEL
J
4
B
16
6
9
11
D
15
H
10
17
3
5
12
C
F
18
1
19
E
8
G
14
A
2
13
I
7
RELAY DRIVE
Q128, 129
DETECT
OVER VOLTAGE
0.01
C122
100p
C131
0.01
C133
0.01
C168
0.1
100V
100V
C159
0.1
C160
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