Onkyo TX-SR804 Service Manual page 13

A B
BLOCK DIAGRAM-1
AUDIO SECTION
MIC AMP
SET UP MIC
1
L
VIDEO 4 IN
R
Q3001
L
PHONO
RIAA
EQ
R
L
CD
R
L
TAPE OUT
R
L
TAPE IN
R
L
2 VIDEO 3 IN
R
L
VIDEO 2 OUT
R
L
VIDEO 2 IN
R
L
VIDEO 1 OUT
R
L
VIDEO 1 IN
R
3
FL
FR
C
SW
SL
SR
SBL
SBR
IN 1
4
Micro HDMI
Controller RX
IN 2
HDMI
PCM (FL,FR,C,SW,SL,SR,SBL,SBR)
OUT
HDMI
TX
SPDIF
(FRONT)
OPT IN
OPT IN 1
OPT IN 2
OPT IN 3
5
OPT IN 4
COAX 1
COAX 2
OPT OUT
C
XM-RADIO
FM/AM TUNER UNIT
D type only
DAC
XM/DT IC
AK4384
Q3003 NJW1157
51
52
53 41 42
+
46
54 43 44 45
+
48
55 47
-6dB
56
57
58 Q3002
NJU7311AM
59
27 4
27
29 Z2_L
60 3
28 28
2
30 Z2_R
61 29
62
63
21 12
64 7
23
25
65
22 19
24 24
66 11
26
20
67
SOURCE_L 10 5
68 SOURCE_R 21 26
6
9 25
69 22
8
23
70
71
73
73
74
Q331, 341, 351
MCLK
2ch ADC
2ch ADC
BCLK ADLT-
LRCLK ADLT+
2ch ADC ADRT+
ADRT-
CS5340x3
SWITCHING
2ch ADC
Q141
& CLOCK
TC74VHT157F
Q161
TC74VHT157F
Q211 131
119
MX26LV040
134
111 2
FLASH ROM Q201
117 3
4M bit CS494003
107 1
106 64
DSP
109 63
Q285
110 62
118 56
IC42S16100
SD RAM
16M bit
RX0 49
RX1 48
RX4 43
RX6 47
DIR
RX5 46
RX3 45
RX2 44
RX7 42
TX 50
D E
80
1
88
TONE
81
2
89
TONE
82
3
90
A
87
8
95
A
83
4
MIX_L 91
MIX_R
84
5
92
85
6
VOLIN_SBL 93
+6dB@ZONE2
86
VOLIN_SBR 94
8ch DAC
Q361
CS42528
F G
7 ch POWER
AMPLIFIER
+29dB
+29dB
+29dB
PRE OUT
Q3007
FL
+29dB
+20.2dB
FR
C
+29dB
SW
SL
+29dB
SR
SBL
7 SBR
+29dB
ZONE2 LINE OUT
Z2L_PO
L
Z2R_PO
R
Q701
M30627FHPGP
Main Micro
Processor
<Note>
Refer to SCHEMATIC DIAGRAM-13(SD-13) for
the digital audio signal flow and wave forms.
TX-SR804/804E
H
HEADPHONES
LEFT
FRONT SPEAKERS
RIGHT
CENTER SPEAKER
LEFT
SURROUND SPEAKERS
RIGHT
LEFT
SURROUND BACK
SPEAKERS
RIGHT
LEFT
ZONE2 SPEAKERS
RIGHT
12V TRIGGER
12V TRIDDER
CONTROL OUT ZONE 2
IR IN
IR
REMOTE SENSOR
IR OUT
RI RIex
INTERFACE
RS-232C
INTERFACE RS232