Onkyo TX-SR674, Руководство по обслуживанию

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TX-SR674/674E/8467
SCHEMATIC DIAGRAM-12(SD-12)
DIGITAL AUDIO WAVE FORM SECTION
A
1
2
3
4
5
B C D
Q401
Q401
Q402
Q403
Q403
Q404
Q404
Q402
IN
VCC
GND
Q131
74HCU04F
1
13
4
10
IN
VCC
GND
IN
VCC
GND
IN
VCC
GND
43
42
46
45
48
50
6 9
Q201
DSP
DIR
Q301
Q181
TC74VHC157FT
DAC
Fs=48kHz : DVD, Clock width=20.8us
Fs=44.1kHz : CD, Clock width=22.7us
64Fs=3072kHz : DVD, Clock width=325ns
64Fs=2822.4kHz : CD, Clock width=354ns
LR CLOCK (SAI_LRCK, CX_LRCK)
BIT CLOCK (SAI_SLCK, CX_SLCK)
MASTER CLOCK=128Fs or 256Fs
CS42518-CQ
WF01 is short for WaveForm01 .
PCMCSW
PCMSLR
PCMSBLR
PCMLRCK
MCK_HDMI
PCMBCK PCMLR
1 2 3 4 5 6 7
OPT1
OPT2
OPT3
DIGITAL
OUT
COAX1
COAX2
COAX1
COAX2
OPT1
OPT2
OPT3
TX
SAI_SDOUT
SAI_SLCK
SAI_LRCK
13
14
12
10
11
9
6
5
7
SAI_SDOUT
SAI_SLCK
SAI_LRCK
CX_SCLK
CX_LRCK
120
139
141
142
144
CX_SDIN1
113
1
2
3
138
137
135
33
32
30
31
37
29
36
26
28
27
23
20
22
34
21
35
FL
FR
C
SL
SR
SBL
SBR
SW
54
61
60
TMS320D707E001
P801A
WF01
WF02
WF03
WF04 WF05
WF06
WF07
WF08
WF09
WF10
WF01
WF02 WF03
WF04
WF05
WF06
WF07
WF08
WF09
WF10
CX_SDIN2
115
64
CX_SDIN3
116
63
CX_SDIN4
117
62
4.0V
Duty varies according to audio data
3.3V 3.3V
325 ns
5.0V
Duty always varies according to audio data
3.3V
Duty varies according to audio data
OPT1
COAX1 SAI_SDOUT
SAI_LRCK
SAI_SLCK
CX_SDIN1
CX_LRCK
CX_SCLK
DAC_OUT-
AUDIO_FL
DAC_OUT-
AUDIO_FL
WF10 AUDIO_FL
3.3V
3.3V
20.8us
3.3V
325 ns 20.8us
20.8us
220mVp-p
Aliasing noise in no audio data
Analog audio wave form with aliasing noise
0V
2.8V
Analog audio wave form with aliasing noise
NOTE:
1.
2. Refer to SD-6(SCHEMATIC DIAGRAM-6) for details.
R141
R142
R143
R336
R337
R312
R316
R315
R254
R255
R256
R257
R267
R269
R411
R401
R412
R402
R413
R403
R415
R405
R416
R406
R417
R407
R418
R408
R414
R404
TO NAVD-8928 (SD-10)
0V
2.8V