Block Diagram - Audio Section; Digtal Audio Signal(Opt - Onkyo TX-SR308 Service Manual

A B
SCHEMATIC DIAGRAMS-1a
BLOCK DIAGRAM , AUDIO SECTION
1
MINI JACK IN
TUNER PACK
(FRONT IN)
MJJ EXCEPT
UNIVERSAL PORT
UPORT OPTION UNIT
U PORT L
ZONE2 L
UPORT ZONE2 R
2
U PORT R
3
TV/CD
4
GAME
CBL/SAT
VCR/DVR OUT
5
VCR/DVR
DVD/BD
COAX 1
6
OPT1
OPT2
HDMI
(REPEATER)
HDMI_SPDIF
TRANSCEIVER
HDMI MCK
HDMI BCK
HDMI LRCK
HDMI FLR
7
IN3
DIR BCK
DIR LRCK
DIR FLR
IN2
DIR MCK
HDMI
RX
CX LRCK
IN1
CX SCLK
(BL/BR) DSP SBLR
(SL/SR) DSP SLR
(CT/SW) DSP CSW
(FL/FR) DSP FLR
HDMI
OUT
TX SPI to Micom
8 HDMI BLOCK DIAGRAM
TX-SR308 HT-R280/ 380 / 538/ RC230
C D

DIGTAL AUDIO SIGNAL(OPT-1)

AUDIO ANALOG SIGNAL(TV/CD)
FRONT L
FRONT R
85
86
81
INVERTING
54
Q4003
82
55
INVERTING
73
Downmix
FL/FR -12dB
SW -1.5dB
72
78
79
70
71
68
SW
69
66
67
64
65
62
63
60
61
58
59
90
Z2 L
47
91
Z2 R
46
75
76
84
83
PCM9210
47
RTAD 2ch ADC
RTAD
48
LTAD
29
28
3
4
DIR
31
30
15
Q301
HDMI MCK 7
HDMI BCK 8
HDMI LRCK 9
HDMI FLR 10
SPI
E F G
Q4001 R2A15218FP
23 FL
TONE
24
94
FL
43
FR
21
TONE
93
20
42
FR
95
CEN
17
CEN
38
18
(SR)
SBL
98
11 SBL
41
12
97
SBR
(SL)
9 SBR
40
96 8
39
SW
15
100
14
SL
(SBR)
37
SL
5
99
SR
6
(SBL)
36
SR
3
44
2
45
SBL
SBR
SL
SR
SW
C
FL
FR
- + - + - + - +
DIR MCK 14
CX LRCK 6
CX SCLK 7
8ch DAC
DSP SBLR 8 (BL/BR)
25 DIG CLK
DSP SLR 9 (SL/SR)
24 DIG SD0
DSP CSW 10 (CT/SW)
Q302 PCM1690
23 DIG SD1
DSP FLR 11 (FL/FR)
19 DIR BCK
18 DIR LRCK
SPI SPI
17 DIR FLR
20 DIR MCK
40
X-TO X171-XTAL
39 24.576MHz
X-Tl
MCLK
H I
POWER AMPLIFIER
+29dB
+29dB
+29dB
+29dB
+29dB
+29dB
Subwoofer
AV=+15dB
Z2MUT
- + - + - + - +
(HMDI SLC) VMCLK
(HMDI SDA) VMSDO
VMSDI
DIGSDI
DIGSDO
DIGCLK
21 DIG CLK
20 DIG SDO
TX-SR308 HT-R280/ 380 / 538/ RC230
J K
HEADPHONES
SPEAKER TERMINALS
FRONT LEFT
FRONT RIGHT
CENTER
SURR. LEFT
SURR. RIGHT
SUBWOOFER
HT-R380/HT-R280
ONLY
SPKR B
LEFT
RIGHT
SW-PREOUT
TX-SR308/HT-R538/HT-RC230
ONLY
SB-PREOUT
RI
RI
INTERFACE
FRONT
24
MICOM
Q7002
23
22 FLDCLK
51 7
Q701
M66005
68
50 8
69
FLDSDO
uPD70F3746
70
500KHz
SPI
SDI SDI 2 Q705
XTAL-X501
SDO SDO 5
EEPROM
5MHz
CLK CLK 6