Onkyo TXSR-304 Schematic

TX-SR304/304E

http://receiverfaq.ru/

A

BLOCK DIAGRAM

AUDIO SECTION

CD IN

TAPE OUT

TAPE IN

VIDEO 3 IN

VIDEO 2 IN

VIDEO 1 IN

FRONT L

FRONT R

SURROUND L

DVD IN

SURROUND R

SUBWOOFER

CENTER

TUNER UNIT

1

2

VIDEO 1 OUT

3

BCDE

PHONES

POWER AMPLIFIER

40

46

45

48

47

50

49

52

51

54

53

56

55

58

57

60

59

64

63

62

61

66

65

68

67

70

69

72

71

MAIN L

MAIN R

SUB L

SUB R

REC L

REC R

39

38

R2S15211FP

8 ch Electronic Volume with Input Selector and Tone Control

AD

ADSP-21266

DSP

CS-42516

6 ch Codec with S/P DIF Receiver

DIR

6ch DAC

LPF

LPF

LPF

LPF

LPF

LPF

34

73

35

74

30

75

28

79

29

80

31

76

32

77

33

78

TONE

TONE

17

16

+

19

20

+

7

6

++

4

5

2

1

+

9

10

++

12

11

14

15

+

STK-413-220A

FL

+25dB

FR

+25dB

C

+25dB

STK-412-220A

SL

+25dB

SR

+25dB

HPIN

HPRL

AMUT

To MICROPROCESSOR

SPRLCS

SPRLF

Z2RL

L

FRONT
SPEAKERS A

R

CENTER
SPEAKER

L

SURROUND
SPEAKERS

R

SUBWOOFER
PREOUT

L

FRONT
SPEAKERS B

R

DIGITAL IN

COAXIAL

4

OPTICAL

TX-SR304/304E

1

2

TX-SR304/304E

A

SCHEMATIC DIAGRAMS-1

AUDIO INPUT SECTION

P5001

1

P5500

1

RI

CD_IN

TAPE_OUT

2

TAPE_IN

VIDEO 3_IN

3

VIDEO 2_IN

VIDEO 1_OUT

VIDEO 1_IN

4

FRONT R

FRONT L

SURROUND R

DVD_IN

SURROUND L

SUBWOOFER

CENTER

5

SUBWOOFER

PREOUT

2
3

P5002

R

R

R

R

R

R

R

9

7

8

L

6

4

5

L

3

1

2

L

10

6

4

5

L

P5003

3

1

2

L

7

6

4

5

L

P5004

3

1

2

L

7

9

7

8

P5005

6

4

5

3

1

2

10

P5006

3

2

1

R5500

330

R5002

330

R5001

330

R5006

330

R5005

330

R5010

330

R5009

330

R5014

330

R5013

330

R5018

330

R5017

330

R5022

330

R5021

330

R5026

330

R5025

330

R5101

330

R5100

330

R5104

330

R5103

330

R5105

330

R5102

330

R5285

100

C5051

C5052

C5053

C5054

473K

R5275

R5004

100K

R5003

100K

R5008

100K

R5007

100K

R5012

100K

R5011

100K

NC

R5016

100K

R5015

100K

R5020

100K

R5019

100K

NC

R5024

100K

R5023

100K

R5028

100K

R5027

100K

NC

R5111

100K

R5110

100K

R5114

100K

R5113

100K

R5115

100K

R5112

100K

100K

C5275

BCDEFGH

C5004

221J

C5003

221J

R5029

100K

R5030

100K

C5008

NC

C5007

NC

C5012

221J

C5011

221J

C5016

221J

C5015

221J

C5020

221J

C5019

221J

C5024

NC

C5023

NC

C5028

221J

C5027

221J

C5111

221J

C5110

221J

C5114

221J

C5113

221J

C5115

221J

C5112

221J

221J

C5304

C5303

1SS133

D5500

TA_ L

TA_ R

V1_OUTL

V1_OUTR

V3_L

V3_R

V2_L

V2_R

V1_L

V1_R

DVD_ L

DVD_ R

NC

NC

R5304 10K

R5901

R5303 10K

64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41

R5902

TA_OUTL

TA_OUTR

65

66

INRB/RECR2

INL8
INR8
INL7
INR7
INL6
INR6
INL5
INR5
INL4
INR4
INL3
INR3
INL2
INR2
INL1
INR1

CD_L

CD_R

67

68

INLB/RECL2

INL10/RECL4

INR10/RECR4

64 INL9
63 INR9
62 INLA/RECL1
63 INRA/RECR1

44 AVEE
43 CLOCK
42 DATA
41 DGND

AD_R

C513047/16

C513147/16

+

+

C5132 47/16

TU_L

DAC_L

TU_R

69

70

INL11/RECL5

INR11/RECL5

R2S15211FP

SELECTOR/VOLUME

(Botom view)

AD_L

71

72

RECR3

Q5001

MULTI_SR

73

RECL3

32

MULTI_SL

FLIN1

SLIN233SRIN234FLIN235FRIN236ADCL37ADCR38SUBR39SUBL40MONO

DAC_C

DAC_R

74

75

FRIN1

BASS_L1 21
BASS_L2 22

TRE_L 23

30

MULTI_C

MULTI_SW

+

+

DAC_SW

76

CIN1

SWIN1

1-C 1
1-OUT 2
AGND 3

AVCC 24

SBRIN2

CIN231SWIN2

29

DAC_SL

77

SLIN1

SBLIN2

28

C5134 47/16+C5133 47/16+C5135 47/16

DAC_SR

78

SRIN1

TRE_R

27

C5036 223J

79

SBLIN1

2-OUT

3-OUT
AGND
4-OUT

5-OUT
AGND
6-OUT

FLC

FLOUT

AGND

FROUT

FRC

BASS_R2

26

C5034 823J

+6.9V

80

SBRIN1

2-C
3-C

4-C
5-C

6-C

BASS_R1

25

C5032 474J

1.8K

R5042

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

R5301 100(1/2W)

R5302 100(1/2W)

-6.9V

47/25

C5202

+

47/25

C5205

+

47/25

C5203

+

47/25

C5204

+

47/25

C5200

+

47/25

C5201

+

C5031 474J
C5033 823J
C5035 223J

+
C5301
470/25

D5001

MTZJ6.8B

C5302

+

470/25

D5002

MTZJ6.8B

7

Q5003:A

NJM4580M-D

NJM4580M-D

Q5003:B

1

C5141

330J

R5147

10K

R5141

10K

R5142

10K

R5148

10K

C5142

330J

R5041

1.8K

R5145

10K

R5143

1.2K

8

6

5

4

3

2

R5144

1.2K

R5146

10K

10K

1.2K

R5149

470

LOUT

ROUT

COUT

SLOUT

SROUT

C5235

47/50

C5210

47/50

C5211

47/50

C5212

47/50

C5213

47/50

C5214

47/50

C5215

2.2/50

R5235 47K

C5245 221J

R5245 1.2K

R5200

R5201

R5202

R5203

R5204

R5205

15K

R5255

220K

220K

220K

220K

220K

2.2K

R5210

2.2K

R5211

2.2K

R5212

2.2K

R5213

2.2K

R5214

2.2K

R5215

270

3

2

5

6

RN1441

RN1441

RN1441

RN1441

RN1441

RN1441

8

Q5002:A

NJM4580M-D

1

R5265

4

10K

C5255

103K

Q5002:B

NJM4580M-D

7

Q5200

Q5201

Q5202

Q5203

Q5204

Q5205

R5216 220K

R5220

R5221

R5222

R5223

R5224

R5225

100

NC

NC

NC

Q5212

Q5213

NC

NC

Q5214

Q5215

RN1441

+11.8V

-11.8V

Q5210

NC

Q5211

NC

NC

NC

NC

C5206

C5207

+

+

220/25

220/25

R5206

22

R5207

22

J6114

J6116

NC

TX-SR304/304E

NAAF-8745 (1/2)

SYS_IN

TU_GND

CODEC_GND

S3_GND

AMUTE
VOL_CLK
VOL_DAT

A_GND

S1_GND

A_+12V

A_-12V

TU_L
TU_R

AD_R
AD_L

DAC_R

DAC_L

DAC_SR
DAC_SL
DAC_SW

DAC_C

L
R
C

SL
SR_SW
SR_SW

NOTE

THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL).
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.

U01

AMPLIFER PC BOARD

To NAAF-8745 (2/2)

(SD-2 : F5)

!

1.2K

10K

R5150

470

<Note>

NC = No mount of parts.

SD-Z : XY

Location of connected terminal in schematic diagrams.
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.

AUDIO (ANALOG)

L(FL) ch

R(FR) ch