Table of Contents
Advertisement
A
B
SCHEMATIC DIAGRAMS-2 (SD-2)
AUDIO SECTION-2
NAASP-9050(2/2)
U06
VIDEO5L
-15V
1
MainAL
GND
MainAR
+15V
VIDEO5R
2
MCH_C
MCH_SL
MainBL
TAPEOUTL
VIDEOOUTL
10
9
8
7
6
5
4
3
2
-15V
1
+15V
VIDEOOUTR
TAPEOUTR
MainBR
MCH_SR
3
MCH_SW
10
9
8
7
6
5
4
3
2
1
PZ2L
MCH_SBL
BTLL
BTLR
MCH_SBR
PZ2R
4
5
TO NAAR-9075
SD-8:F4
C
AMPLIFIER PC BOARD
22(1/2W)
-14.4V
R4302
180
1.5K
R4303
R4305
R4309 2.2K
R4307
12K
R4311
R4313
12K
2.2K
FL
-14.4V
+14.4V
12K
R4312
R4314 2.2K
R4308 12K
R4310 2.2K
22(1/2W)
R4306 1.5K
R4304
R4301
180
+14.4V
FR
-14.4V
+14.4V
C4319 102J
R4335
R4331
10K
2
1
10K
3
C4321
47/50
Q4303A
NE5532AP
-14.4V
+14.4V
NE5532AP
5
Q4303B
R4332
6
7
C4322
47/50
10K
10K
R4336
C4320
102J
P4020A
P4021A
TO NAAR-9075
SD-8:G4
D
E
C4311 102J
C4313 102J
-14.4V
R4319
R4327
10K
R4315
2
10K R4323
R4321
2
1
10K
C4315
MIXL
1
3
10K
10K
3
Q4301A
R4337 10K
Q4302A
NE5532AP
NE5532AP
NE5532AP
R4338
Q4302B
NE5532AP
10K
5
Q4301B
R4339
MIXR
7
5
R4324
R4322
10K
6
7
C4316
R4316
47/50
6
R4328
10K
10K
10K
R4320
10K
10K
C4314 102J
C4312 102J
+14.4V
Down Mix
_FR
_SL
_FL
_SBL
R4340
_SBR
10K
C4415
10/50
-8.5V
+8.5V
10K
R4341
37 OUT3
24
OUT6
10K
38 REFO3
23
REFO6
R4342
_SR
39 IN3
22
IN6
21
40 REFI3
Q4405
REFI6
41 REFI2
20
REFI7
_C
42 IN2
CS3318
19
IN7
43 REFO2
18
REFO7
44 OUT2
VOLUME
17
OUT7
45 VA+
16
VA-
46 VA-
15
VA+
47 OUT1
14
OUT8
_SW
48 REFO1
13
REFO8
C4413
10/50
C4408 104Z
C4409 101J
C4410 101J
C4411 101J
R4343
C4412 101J
10K
D4403
R4407
C4407
47/50
R4344
1.2K(1/2W)
10K
R4345
10K
220/25
220/25
-8.5V
C4405
C4406
+8.5V
2SC2712
2SA1162
Q4403
Q4404
47/50
47/50
C4403
C4404
D4401
D4402
R4403
UDZS9.1B
UDZS9.1B
R4404
2.2K
2.2K
C4401
C4402
100/25
100/25
F
G
HEADPHONE AMP
+14.4V
C4501
1.8K
3
NE5532AP
47/50
R4501
1
2
Q4505A
D4505
5.6K
R4507
C4503
102J
RL4501
2
5
-14.4V
3
4
6
1
102J
C4504
D4509
R4508
5.6K
1SS352
6
D4506
7
C4502
R4502
C4505
5
104
1.8K
Q4505B
47/50
NE5532AP
22(1/2W)
2SC2712
R4419
Q4502
Q4506
2SC2235-Y
R4420
R4518
22(1/2W)
100K
100/50
C4417
4
8
R4415
220K
R4416
2.2K
220K
R4413
R4414
220K
C4650
R4650
R4660
R4670
5
Q4610
47/50
220
100
10
RN1441
RN1441
Q4620
RN1441
RN1441
Q4621
100
C4651
220
Q4611
10
4
47/50
R4651
R4661
R4671
C4652
R4652
R4662
R4672
1
220
Q4612
10
47/50
100
Q4622
RN1441
RN1441
RN1441
RN1441
Q4623
220
100
Q4613
10
R4653
R4663
R4673
C4654
R4654
R4664
R4674
6
Q4614
47/50
220
100
10
RN1441
RN1441
Q4624
RN1441
RN1441
Q4625
C4655
220
100
10
Q4615
2
47/50
R4655
R4665
R4675
C4656
R4656
R4666
R4676
7
Q4616
47/50
220
100
10
Q4626
RN1441
RN1441
RN1441
RN1441
Q4627
Q4617
C4657
220
100
10
3
R4667
R4677
47/50
R4657
8
+14.4V
NOTE
+12V
1
RLGND
2
THE COMPONENTS IDENTIFIED BY MARK
3
REPLACE ONLY WITH PART NUMBER SPECIFIED.
GND
4
+15V
5
VOLTAGE (MEASURED WITH VOLTMETER)
-15V
6
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 (
-14.4V
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)
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
TX-SR875
H
<Note>
SD-x:XY is short for Shcematic Diagram-x and
each socket's location, X=A to H, Y=1 to 5.
HP_L
5
GND
4
HP_R
3
HPDET
2
GNDDG
1
Q4407
Q4408
2SC2712
2SC2712
C
13
12
SR
11
10
SBR
9
8
R
7
6
L
5
4
SBL
3
2
SL
1
104
+12.0V
C4423
D4404
1SS352
RL4401
12
1
C4421
R4690
2
8
9
47
102J
10
L
FRONT
R
3
47
1
5
4
R4691
RL4402
12
1
R4692
3
8
9
10
47
CENTER
SUB WOOFER
3
47
5
4
R4693
RL4403
12
1
C4422
R4694
5
8
9
10
47
102J
L
SURROUND
R
3
47
4
5
4
R4695
104
C4424
D4405
1SS352
12
1
R4696
7
8
9
10
47
L
SURROUND
R
BACK
3
47
6
5
4
R4697
8
RL4404
!
ARE CRITICAL FOR SAFETY.
IS DC VOLTAGE.(NO INPUT SIGNAL).
) ARE IN uF/WV.
PRINTING SIDE
Advertisement
Table of Contents
