Sony STR-DA1000ES Service Manual page 112

STR-DA1000ES/DB790
Q Q
3 7 6 3 1 5 1 5 0
3-4. SCHEMATIC DIAGRAM – MAIN Board (3/3) –
(3/3)
R636 R632
4.7k 2.2k
C632
220p
B1
B2 RV631
220
Q633
B3
2SA988
JW131
CURRENT
DETECT
R637
B4
1.8k
Q5
B5
R486 R482
4.7k 2.2k
C482
220p
(Page 6)
RV481
220
Q483
2SA988
CURRENT
T E DETECT
L 1 3 9 4 2 2 9 6 5 1 3
R487
1.8k
Q6
B6
B7
B8
R436 R432
4.7k 2.2k
C432
220p
RV431
220
Q433
2SA988
CURRENT
DETECT
R437
1.8k
Q7
w w w
STR-DA1000ES/DB790
Q634
2SA1115
Q602
BIAS R612
MN2488
100
Q631
BOOSTER
2SD1915
BIAS
C631
R631
R614
*
470
0.22X2
5W
R635
6.2k
Q603
R613
MP1620
100
BOOSTER
Q484
2SA1115
Q452
BIAS R462
MN2488
100
Q481
BOOSTER
2SD1915
BIAS
C481
R481
R464
*
470
0.22X2
5W
R485
6.2k
R463
100
Q453
MP1620
BOOSTER
Q434
2SA1115
Q402
BIAS R412
MN2488
100
Q431
BOOSTER
2SD1915
BIAS
C431
R431
R414
*
470
0.22X2
5W
R435
6.2k
Q403
R413
MP1620
100
BOOSTER
* C431, 481, 531, 581, 631, 681
47 16V (DA1000ES)
47 25V (DB798)
x a o
. i
http://www.xiaoyu163.com
R586
4.7k
C582
220p
R582
2.2k
CN632 Q583
RV581
2P 2SA988
220
CURRENT
(FOR ADJUSTMENT)
DETECT
R581
470
R587
1.8k
Q1
CN601
6P
GND
BIAS+
BIAS-
NF
GND
(Refer to page 45
C
on original
R536
service manual)
4.7k
C532 R532
220p 2.2k
CN482 Q533
2P 2SA988
RV531
CURRENT 220
(FOR ADJUSTMENT)
DETECT
Q Q
3 7 6
R537
1.8k
Q2
CN401
12P
BIAS+
BIAS-
NF
R686
GND
4.7k
R682
R
2.2k
C682
GND
220p
BIAS+
BIAS-
(Refer to page 45
NF
on original
service manual)
GND
Q683
2SA988
L RV681
CURRENT 220
DETECT
R687 R685
1.8k 6.2k
Q4
CN432
2P
(FOR ADJUSTMENT)
CN421
6P
GND
GND
GND Q3
+B
-B
(Refer to page 45
LIMITER
on original
service manual)
u 1 6 3
y
(Page 7)
8 8
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2 4
8 9 9
R562
100
Q584
2SA1115 Q552
MN2488
BIAS
BOOSTER
Q581
2SD1915
BIAS
C581
R564
*
0.22X2
5W
R585
6.2k
R563
Q553
100
MP1620
BOOSTER
Q534
R512
2SA1115 Q502
100
MN2488
BIAS
BOOSTER
Q531
2SD1915
BIAS
C531
R531
*
470
R514
0.22X2
3 1 5 1 5 5W 0 8 9
R535
6.2k
R513
Q503
100
MP1620
BOOSTER
Q684 Q652
R662
2SA1115 MN2488
100
BIAS BOOSTER
Q681
2SD1915
BIAS
C681
R681
470 *
R664
0.22X2
5W
R663
100
Q653
MP1620
BOOSTER
m
c o
.
2
8 9 9
CN582
2P
(FOR ADJUSTMENT)
CN501
12P
BIAS+
BIAS-
NF
GND
SR
GND
BIAS+
BIAS-
(Refer to page 45
NF
on original
service manual)
GND
SL
GND
CN532
2P
(FOR ADJUSTMENT)
2 4 9 8 2 9 9
CN651
10P
GND
BIAS+
BIAS-
NF
GND
SB(R)
GND
(Refer to page 45
on original
SBL
service manual)
GND
SHORT
CN682
2P
(FOR ADJUSTMENT)
(DA1000ES)
CN423
3P
+B
-B
(Refer to page 47
on original
service manual)
C404 CN415
22 3P
100V
+B
GND
-B
C403 (Refer to page 53
22 on original
100V service manual)