ONKYO TX-SR8450
Service Manual

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Contains Circuit Diagrams
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PDF Format
Complete manual
Language: English

Price: $4.99

Description of ONKYO TX-SR8450 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

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The manual is available in languages: English

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Text excerpt from page 64 (click to view)

TX-SR504/504E/8450 IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-21
Q5501 : R2S15211FP (8 ch Electronic Volume and 11 Input Selector and Tone Control)-2/3
BLOCK DIAGRAM AND PIN CONFIGURATION
1

I/F

40

39

38

37 36

35

34

33

32

31

30

29

28

27

26

25

INLB/RECL2 SUB SUBL

AVCC

DATA 42 CLOCK 43 AVEE 44 INR1 45 INL1 46 INR2 47 INL2

MCU

INR10/RECR4

DGND 41

24 AVCC
INL10/RECL4 ADCR

23 TREL
ATT INR11/RECR5 ADCL

22 BASSL2
0/-6/-12/-18dB INL11/RECL5 FRIN2 Bass/ Treble

MAIN INRB/RECR2 MONO

21 BASSL1
+16~0dB (1dBstep)

RECR3 FLIN2

0~-95dB, -14~+14dB (1dBstep) (2dB step)

20 FRC 19 FROUT 18 AGND

RECL3 SRIN2

Tone
FLIN1 SLIN2

FRIN1 SWIN2

48

Tone
CIN1 CIN2
0~-95dB (1dBstep) Bass/ Treble -14~+14dB +16~0dB (2dB step) (1dBstep)

17 FLOUT 16 FLC 15 6-C

INR3 49 INL3 50 INR4 51 INL4 52 INR5 53 INL5 54 INR6 55 INL6 56 INR7 57 INL7 58 INR8 59 INL8 60 INRA/RECR1 61
REC

SBRIN2 SBLIN2 SLIN1
+16~-95dB (1dBstep)

14 6-OUT (SR OUT) 13 AGND
SBLIN1 BASSR

BASSR

+16~-95dB (1dBstep) +16~-95dB (1dBstep)

SRIN1 TRER

12 5-OUT (SL OUT) 11 5-C 10 4-C

+16~-95dB (1dBstep)

2

9 4-OUT (SW OUT) 8 AGND

+16~-95dB (1dBstep)

7 3-OUT (C OUT) 6 3-C

+16~-95dB (1dBstep)

5 2-C 4 2-OUT (SBR OUT) 3 AGND 2 1-OUT (SBL OUT) 1 1-C

INLA/RECL1 62 INR9 63 INL9 64

65

66

67
SUBR

68

69

70

71

72

73

74

75

76
SWIN1

77

78

79

80
SBRIN1

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TX-SR8450 ONKYO
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Complete owner's manual in digital format. The manual will be available for download as PDF file aft…

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