Sony SA-W3800, Service Manual

Page: 6 / 20

6 6
SA-W2500/W3000/W3800
SA-W2500/W3000/W3800
1-2. SCHEMATIC DIAGRAM – INPUT CONTROL, LED AND SWITCH BOARDS –
IN
SPEAKER
LINE
OUT
IN OUT
LINE AMP
MIX AMP
BPF
LPF
CUT OFF
FREQ
LINE AMP
HPF
LEVEL
BUFFER
REVERSE
PHASE
PHASE
LED DRIVE
(RED)
LED DRIVE
(GREEN)
LED
SWITCH
REG
AUTO
OFF
CURRENT
SOURCE
SWITCH
DRIVE
AUDIO
LEVEL
DETECT
AUDIO
LEVEL
DETECT
POWER SAVE
SWITCH
POWER SAVE
LEVEL
COMPARATOR
NORMAL
GREEN
LED
RED
LED
POWER
BUFFER
BUFFER MFB
MFB
AC DET
+14V REG –14V REG
POWER
L
N
AC IN
MAIN POWER TRANSFORMER
T1
1
1
1
1
2
3
4
5
6
2
2
2
3
INPUT CONTROL BOARD
W2500
W3000
W3800 W2500
W3000
W3800
W2500
W3000/
W3800
W2500(E51)
W3000/W3800(E51)
W3000/W3800
E51
EXCEPT
E51
E51
E51
EXCEPT E51
CN906
CN904
2P
3P: E51
2P: EXCEPT E51
1
2
D202
JW904
C902
F H954 F H904
F H
F901
* 13
F903 * 14
S902
120V
220V
240V
VOLTAGE SELECTOR
901 F H951
C 114
C 117
C 401
C 402
Q401
Q 402
Q403
C 405
Q404
Q405
Q406
Q408
C 206
C NP902
C 201
C 203
R106
C
1
0
4
C109
RY901
S901
RV102
CN401
R201
R202
R203
R209
R420
R424
R
4
1
3
R108
R109
R117
R120
R135
R133
R134
R136
R405
R408
R409
R
1
1
4
R122
R210
R402
R102
R116
R416
R422
R407
R410
R414
R423
R206
R207
R211
R212
R404
R403
R208
C
10
3
C 107
C108
C 115
C 116
C204
C207
C 105
C106
R901
R401
R406
IC 101(1/2)
IC 102(1/2)
IC102(2/2)
IC 103(1/2)
IC103(2/2)
IC104(1/2)
IC 104(2/2)
IC 201(1/2)
IC 201(2/2)
IC202(1/2)
IC 202(2/2)
C 403
C 404
C NP903
IC 101(2/2)
IC401(1/2)
IC401(2/2)
R123
R137
R125
R127
R128
R205
R213
R214
C 406
R124
C110
C 111
C 113
J101
IC402(1/2)
IC 402(2/2)
C N901
CNP905
R126
R121
R
1
1
3
C 409 C 410
R419
C NP103
C303 C306 C304
C305
Q 302 Q301
R301 R302
D406
C 4
100
30 R431
Q 430
CNP402
JW
9
0
7
JW905
JW
9
0
2
JW909
R129
R130
R131
RV101
C 112
R418
R
4
1
5
C
4
0
7
R
4
1
1
C
4
0
8
S101
S102
D
4
0
5
D401
D
4
0
2
D
4
0
3
D
4
0
4
C102
R103
R110
R105
R104
R107
R111
R
1
1
5
R
1
1
9
R
1
1
8
R
1
12 TM101
D
1
0
2
D
1
0
4
D
1
03
D
1
01
R421
D301 D302
R204
R430
C301 C 302
D901
C307 C308
C205
R101
C 202
C
4
1
2
SML7240C THBE
0.0047
10
50V
10
50V
10
50V
10
50V
DTA124E S
DTC 124E S
2SA1175
330
16V
2SC 2785
2SC 2785
2SA1115
2SA1115
100
16V
2P
1
50V
1
50V
4.7k
1/2W
1
0
5
0
V
10
50V
20k
4P
470
470
1k
1k
1k
1k
2
.2
k
4.7k
4.7k
4.7k
4.7k
4.7k
10k
10k
10k
10k
10k
10k
1
5k
22k
22k
22k
33k
33k
47k
47k
100k
100k
100k
100k
220k
220k
220k 220k
470k
470k
47k
2
2
0
p
0.1
0.1
0.1
0.1
0.1
0.1
0.01
0.01
47
22k
220k
NJM4565D
NJM4565D
NJM4565D
NJM4565D
NJM4565D
NJM4565D
NJM4565D
NJM4565D
NJM4565D
NJM4565D
NJM4565D
0.001
0.001
3P
NJM4565D
NJM2904M
N JM2 9 0 4M
12k
1k
12k
0.1
NJM2904M
NJM2904M
2P
2P
4
7
k
0.1 0.1
10k
11P
220p 220p 0.1
0.1
2SB733 2SD773
2.2k 2.2k
1SS133T
10V
47k
2SC2785
3P
47k
1k
0
10k
470
4
7k
2
2
0
1
6
V
4
7
k
0
.1
U
D
Z
S
T
E
-1
74
.7
B
MA111-TX
M
A
1
1
1
-T
X
M
A
1
1
1
-T
X
M
A
1
1
1
-T
X
220p
33k
4.7k
33k
33k
4.7k
1/2W
1k
2
2
k
1
0
k
1
0
k
1
k
SPEAKER TE RMINAL
M
A
1
1
1
-T
X
M
A
1
11
-T
X
M
A
1
1
1
-T
X
M
A
1
1
1
-T
X
1.8k
UDZS-TE 17-15B UDZS-TE17-15B
4.7k
100 16V 100 16V
1SS133T
10 50V 10 50V
1 50V
4.7k
0.22
1
0
0
0
6
.3
V
+VR1
+14
-14
-14
+14
PRE AMP O /P
* 1 * 2 * 3 * 4
C110 C111 C112 C113
0.68 0.022 0.22 0.22
0.22 0.056 0.1 0.1
0.68 0.018 0.1 0.1
* 5 * 6 * 7 * 8 * 9 * 10 * 11 * 12 * 13
R123 R124 R125 R126 R127 R128 R137 R204 R121
8.2k 100k 5.6k 100k 47k 22k 8.2k 220 10k
10k 8.2k 0 330k 10k 470 6.8k
10k 8.2k 0 330k 10k 560 4.7k
US, CND AEP, UK, SP, MY, AUS E51
2.5A/125V T1AL/250V T1.6AL/250V
4A/125V T2AL/250V T3.15AL/250V
* 13 0 F901
T1AL/250V
T2AL/250V
* 14 0 F903
IC102
IC101
IC401 IC402
IC201
IC202
IC103
IC104
3
1
2
1
5
1
1
2
3
5
6
7
8
4
2
4
3
6
1
1
7
6
5
5
5
6
6
7
7
1
2
4
3
5
5
6
6
7
7
8
8
1
2
3
4
8
8
8
1
1
2
4
3
2
3
4
2
3
4
2
3
4
7
8
5
6
7
8
* 12
* 11
*
13
*
1
*
6 * 2
*
5
*
3
*
4
* 7
* 8
* 9
* 10
MAIN BOARD
(Page 8)
A
MAIN BOARD
(Page 8)
C
MAIN BOARD
(Page 8)
B