Sony STR-DA1ES / STR-DB780 Service Manual ▷ View online
STR-DA1ES/DB780
33
33
5-20. SCHEMATIC DIAGRAM – MAIN Board (3/3) –
•
See page 45 for IC Block Diagrams.
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
R156
R155
R154
R153
C162
Q808
D810
C
1
3
4
R132
C136
R134
C140
R136
C139
R135
R133
C
1
3
3
R137
R139
C143
C145
R143
R145
C164
C142
R138
R140
C144
R142
R141
R144
R146
C163
R817
R813
R838
R839
C703
R732
RY807
R829
R846
IC602
C619
R604
C568
C518
C501
R502
IC402
IC502
R404
C468
C821
C418
C551
R552
C502
R503
R553
C552
R703
C702
R702
C701
C452
R453
C161
C817
R603
C602
C718
C601
R602
C469
C402
R403
C401
R402
C451
R452
R151
R152
J131
J151
Q826
IC151
C138
R147
R148
C
1
3
1
C
1
3
2
C
1
4
1
C137
IC131
R845
R840
IC501
IC601
R841
IC401
C
5
1
9
R131
C618
R504
C146
C135
CN805
CN101
C165
R161
C818
C819
1k
1k
2.2k
2.2k
2200p
2SC2785
1SS133
2
2
0
p
2.2k
2.2
50V
50V
100k
220
10V
10V
180
220
10V
10V
180
100k
2
2
0
p
8.2k
100k
0.033
2.2
50V
50V
100k
470
2200p
0.0091
8.2k
100k
0.033
100
100
100k
470
2200p
10k
2.2k
2.2k
10k
22
50V
100k
10
33
M5218AP
100p
1k
100
16V
16V
100
16V
16V
22
50V
1k
M5218AP
M5218AP
1k
100 16V
0.01
100 16V
22 50V
1k
220p
100k
100k
220p
100k
220p
1k
22 50V
220p
100k
2200p
47
35V
100k
220p
100 16V
22 50V
1k
100p
220p
100k
22 50V
1k
22 50V
1k
1k
1k
4P
4P
2SC2785
TC9273N-004
100p
100k
100k
1
0
0
p
1
0
0
p
0
.0
0
9
1
100p
M5218AP-22
33
33
CXD9725M
CXD9725M
33
CXD9725M
1
00
p
2.2k
100
16V
16V
1k
2.2
50V
50V
2.2
50V
50V
9P
100p
1k
22
25V
22
25V
B
1
B
2
B
3
B
4
B
11
B
1
2
B
13
B
1
4
B
1
5
B
1
6
B
1
7
B
1
8
B
1
9
B
2
0
C1
C2
C3
T
U
N
L
T
U
N
R
SORR
S
O
R
R
SORL
S
O
R
L
F
R
R
Y
P
R
E
R
Y
M
D
1
MD1
M
O
U
T
1
MOUT1
M
O
U
T
2
MOUT2
M
D
2
MD2
C
C
C
SR
SR
SR
SL
S
L
S
L
R
R
R
SW
S
W
S
W
L
L
L
VRIN1
VRIN2
VRIN10
VRIN9
VRIN3
V
R
IN
4
LOUT
ROUT
-15V
DATA
CLK
SL
SW
SR
R
L
C
FSP,RY-
RY+24V
PRE,RY-
GND
+15V
F.LAT
GND
TAPE OUT
TAPE
MD
MD OUT
DAT
LAT
CLK
GND
VDD
VSS
COM OUT
PHONO
TUNER
CD
GND
GND
GND
R
L
(CHASSIS)
(CHASSIS)
(CHASSIS)
(3/3)
R
L
R
L
PHONO IN
CD/SACD IN
R
L
R
L
IN
OUT
RY GND
RELAY
DRIVE
RELAY
DRIVE
AUDIO
SELECTOR
PHONO EQ AMP
ELECTRICAL
VOLUME
ELECTRICAL
VOLUME
ELECTRICAL
VOLUME
MD/TAPE
(DA1ES)
(DB780)
4P
10P
(DA1ES)
(DA1ES)
(DB780)
(DB780)
(DB780)
(DA1ES)
BUFFER
BUFFER
BUFFER
(Page 29)
(Page 37)
(Page 31)
(Page 32)
(Page 32)
STR-DA1ES/DB780
34
34
5-21. PRINTED WIRING BOARD – BIAS Board –
•
See page 20 for Circuit Boards Location.
BIAS BOARD
IC803
E
E
E
E
1
7
E
E
1
7
E
E
1
7
E
E
E
E
E
E
1
7
E
1
6
S
MAIN
BOARD
CN809
1-684-330-
11
(11)
R
MAIN BOARD
CN600
O
MAIN BOARD
CN400
Q
MAIN BOARD
CN450
M
MAIN BOARD
CN500
1
7
N
MAIN BOARD
CN550
A
B
1
2
3
4
5
6
7
8
9
10
E
E
E
E
1
4
8
5
B
C
E
B
C
E
B
C
E
B
C
E
B
C
E
Q434
A-6
Q491
B-5
Q482
B-4
Q483
B-5
Q484
A-5
Q531
B-3
Q532
B-3
Q533
B-3
Q534
A-4
Q581
B-1
Q582
B-2
Q583
B-2
Q584
A-3
Q631
B-8
Q632
A-6
Q633
B-7
Q634
A-7
Q802
B-9
Q803
B-8
Q804
A-9
Q805
A-8
Ref. No.
Location
Ref. No.
Location
D431
A-5
D432
A-5
D481
A-4
D482
A-5
D531
A-3
D532
A-3
D581
A-2
D582
A-2
D631
A-6
D632
A-7
D805
A-8
D806
B-9
D807
A-9
D808
A-8
D817
A-9
IC803
A-10
Q431
B-6
Q432
B-5
Q433
B-5
• Semiconductor Location
(Page 30)
(Page 30)
(Page 30)
(Page 30)
(Page 30)
(Page 30)
STR-DA1ES/DB780
35
35
5-22. SCHEMATIC DIAGRAM – BIAS Board –
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que
par une pièce portant le numéro spécifié.
Q432
R532
R534
R533
Q531
C531
R537
Q533
R535
C532
R536
Q532
R539
D531
R541
R542
C534
D532
C533
R544
R543
R545
Q534
R584
R583
Q581
C581
C582
R586
R585
CN531
CN581
CN481
Q582
Q583
R587
D581
R589
R592
C583
D582
R591
C584
R594
R595
R538
R588
R593
R489
D481
R486
C482
R493
R494
R495
R492
C484
C483
D482
R491
R488
CN431
Q483
Q482
R487
R485
C481
R483
R482
R484
Q491
R432
R434
R433
Q431
C431
R436
C432
R439
D431
R441
C433
R442
C434
R443
R445
R444
R438
R643
R644
R645
D632
C633
R641
R642
C634
D631
R639
R637
R635
Q633
Q632
C631
Q631
R634
R636
C632
R633
CN631
R638
C805
D805
Q802
D817
D807
D808
R805
R806
C807
R807
Q805
R811
D806
R810
R801
R803
C806
C808
CN810
JW800
R804
R435
R437
Q433
R540
R590
Q584
Q484
Q434
Q634
R640
R440
R490
IC803
R802
Q803
D432
Q804
R582
R632
2SA988
4.7k
10k
1k
2SC4495
47
16V
1.8k
2SA988
6.2k
220p
4.7k
2SA988
15k
1SS133T-72
22k
15k
10
50V
1SS133T-72
0.01
47k
47k
22k
2SC1815
10k
1k
2SC4495
47
16V
220p
4.7k
6.2k
7P
7P
7P
2SA988
2SA988
1.8k
1SS133
15k
15k
0.01
1SS133
22k
10
50V
47k
22k
68k
68k
47k
15k
1SS133
4.7k
220p
47k
47k
22k
15k
10
50V
0.01
1SS133
22k
68k
7P
2SA988
2SA988
1.8k
6.2k
47
16V
1k
4.7k
10k
2SC4495
4.7k
10k
1k
2SC4495
47
16V
4.7k
220p
15k
1SS133
22k
0.01
15k
10
50V
47k
22k
47k
68k
47k
47k
22k
1SS133
0.01
22k
15k
10
50V
1SS133
15k
1.8k
6.2k
2SA988
2SA988
47
16V
2SC4495
10k
4.7k
220p
1k
7P
68k
470
6.3V
1SS133
2SC2785
1SS133
1SS133
1SS133
10k
22k
22
50V
10k
2SC1841
470k
1SS133
10k
22k
33k
47p
47p
6P
10k
6.2k
1.8k
2SA988
2SC1815
2SC1815
2SC1815
2SC1815
M5218AP
1k
2SA988
1SS133
BA1F4M
4.7k
4.7k
*
∗
∗
∗
∗
-B
GND
+15V
ADD
COMP
-15V
LIMITER
BIAS+
BIAS+
BIAS-
BIAS-
+PTrE
-PTrE
SPOUT
BIAS+
BIAS+
BIAS-
BIAS-
+PTrE
-PTrE
SPOUT
BIAS+
BIAS+
BIAS-
BIAS-
+PTrE
-PTrE
SPOUT
BIAS+
BIAS+
BIAS-
BIAS-
+PTrE
-PTrE
SPOUT
BIAS+
BIAS+
BIAS-
BIAS-
+PTrE
-PTrE
SPOUT
BIAS
AF POWER
SENSOR
DETECT
BIAS
DETECT
SENSOR
AF POWER
Q582,583
Q532,533
SENSOR
AF POWER
BIAS
SENSOR
AF POWER
DETECT
BIAS
SENSOR
AF POWER
DETECT
BIAS
DETECT
Q482,483
CURRENT
CURRENT
CURRENT
CURRENT
CURRENT
Q632,633
∗
Q432,433
OVER LOAD
DETECTOR
AF POWER
Q802,803,805
PROTECTOR
PROTECT
OVER LOAD
DETECTOR
VEE
VCC
(DB780)
(DA1ES)
R440,490,540,590,640
1.8k
2k
(Page 32)
(Page 32)
(Page 32)
(Page 32)
(Page 32)
(Page 32)
STR-DA1ES/DB780
36
36
5-23. PRINTED WIRING BOARDS – H.P/PRE/SPOUT Boards –
•
See page 20 for Circuit Boards Location.
PRE/SPOUT
BOARD
FRONT
R
L
R
L
SURROUND
J449
PRE OUT
CENTER
SUB
WOOFER
OUT
J699
-1
-2
-1
-2
-1
-2
(DA1ES)
10
1
(DA1ES)
X
MAIN BOARD
CN805
1
4
U
MAIN BOARD
CN803
1-685-504-
11
(11)
-1
-2
(DB780)
+
–
+
–
R
L
FRONT
SPEAKERS
IMPEDANCE
USE 4 – 16Ω
TM449
(DB780)
H.P BOARD
(CHASSIS)
1
5
T
MAIN
BOARD
CN801
1-685-503-
11
(11)
PHONES
J849
(Page 30)
(Page 30)
(Page 30)
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