Onkyo TX-SR875 Service Manual page 13

E
C4311 102J
C4313 102J
R4319
R4327
10K
2
10K R4323 R4321
2 1
C4315
1 3
10K 10K
3
Q4301A
Q4302A NE5532AP
NE5532AP
NE5532AP
Q4302B
NE5532AP
5
Q4301B
7 5
R4324 R4322
6 7
C4316
47/50 6
10K
R4328 10K
R4320
10K
10K
C4314 102J
C4312 102J
V
_FR
_SL
_FL
_SBL
_SBR
C4415
10/50
37 OUT3
38 REFO3
_SR
39 IN3
40 REFI3
Q4405
41 REFI2
_C 42 IN2 CS3318
43 REFO2
44 OUT2 VOLUME
45 VA+
46 VA-
47 OUT1
_SW 48 REFO1
C4413
10/50
D4403
R4407
C4407
47/50
1.2K(1/2W)
220/25 220/25
+8.5V
C4405 C4406
C2712
2SA1162
4403 Q4404
47/50
47/50
C4403 C4404
D4401 D4402
UDZS9.1B UDZS9.1B
3 R4404
K 2.2K
C4401 C4402
100/25
100/25
F
R4315
10K
R4316
10K
Down Mix
22(1/2W)
R4419
R4420
22(1/2W)
-8.5V
+8.5V
24
OUT6
23
REFO6
22
IN6
21
REFI6
20
REFI7
19
IN7
18
REFO7
17
OUT7
16
VA-
15
VA+
14
OUT8
13
REFO8
C4408 104Z
C4409 101J
C4410 101J
C4411 101J
C4412 101J
+14.4V
-14.4V
HEADPHONE AMP
+14.4V
C4501
1.8K NE5532AP
3
1
R4501
47/50
2 Q4505A
D4505
5.6K
R4507
C4503
102J
-14.4V
102J
C4504
R4508
5.6K
6
D4506
7
C4502 R4502
5
Q4505B
1.8K
47/50
NE5532AP
Q4502
2SC2235-Y
100/50
C4417
4 8
R4415
220K R4416
2.2K
220K
R4413
R4414
220K
C4650
R4650 R4660 R4670
220 Q4610 10
100
47/50
RN1441 Q4620
RN1441
RN1441 RN1441 Q4621
C4651 100
220 10
Q4611
R4661
47/50 R4651 R4671
C4652 R4652 R4662 R4672
Q4612
47/50 220 100 10
Q4622
RN1441 RN1441
RN1441 RN1441
Q4623
220 100
10
Q4613
R4653 R4663 R4673
C4654
R4654 R4664 R4674
Q4614
47/50 220 100 10
Q4624
RN1441 RN1441
RN1441 RN1441
Q4625
C4655
220 100 10
Q4615
R4655 R4665 R4675
47/50
C4656 R4656 R4666 R4676
Q4616
47/50 220 100 10
Q4626
RN1441 RN1441
RN1441 RN1441
Q4627
Q4617
C4657 100
220 10
47/50 R4657 R4667 R4677
+12V 1
RLGND 2
3
GND 4
+15V 5
-15V 6
G
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
RL4501
5
2
3
4
6 1
D4509
1SS352
C4505
104
2SC2712
Q4506
R4518
100K
Q4407
2SC2712
C
SR
SBR
R
L
SBL
SL
104
+12.0V
C4423
D4404 1SS352
RL4401
12
1
R4690
5 2 8 9
47
10
3
47
4 1 5 4
R4691
RL4402
12 1
R4692
1 3 8 9
10 47
3
47
5 4
R4693
RL4403
12 1
R4694
6 5 8 9
10
47
3
47
2 4 5 4
R4695
104
C4424
D4405 1SS352
12 1
R4696
7 7 9
8
10
47
3
47
3 6 5
4
R4697
8 8
RL4404
NOTE
!
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY.
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF, 330- 33pF, 331- 330pF, 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
TX-SR875
H
HP_L 5
GND 4
HP_R 3
HPDET 2
GNDDG
1
Q4408
2SC2712
13
12
11
10
9
8
7
6
5
4
3
2
1
C4421
102J
L
FRONT
R
CENTER
SUB WOOFER
C4422
102J
L
SURROUND
R
L
SURROUND
R BACK
IS DC VOLTAGE.(NO INPUT SIGNAL).