Onkyo HT-RC270 Service Manual page 5

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A
B
SCHEMATIC DIAGRAMS - 1
BLOCK DIAGRAM AUDIO SECTION
Q Q
3 7 6 3 1 5 1 5 0
except onk JJ
1
TUNER
UNIVERSAL
PACK
PORT
L
R
for US
SIRIUS_L
SIRIUS
SIRIUS
SIRIUS_R
L
AUDIO IN
(FRONT)
R
2
L
PHONO (MM)
R
PHONO EQ
L
TUNER
( for onk JJ )
R
L
TV/CD IN
R
L
3
PC IN
R
L
GAME IN
R
L
CBL/SAT IN
R
L
VCR/DVR OUT
R
4
L
VCR/DVR IN
R
NET_L
L
FL
T E
L
1 3 9 4 2 2 9 6 5 1 3
NET_R
R
FR
C
SW
SL
5
SR
SBL
SBR
6
NET
net DAC
MIC AMP
CS1754
SETUP MIC
(FRONT)
CS5361
COAXIAL 1
2ch ADC
DR114dB
COAXIAL 2
COAXIAL 3
NewDIR/ADC
DIGITAL IN
2ch ADC
7
(FRONT)
DR99dB
OPTICAL IN1
OPTICAL IN2
DIR
HDMI
HDMI
IN1-6
RX
under study
HDMI
I2S(DVD-AUDIO/DSD)x4
(FRONT)
w w w
ARC
OUT MAIN
HDMI
(ARC)
TX
8
OUT SUB
HDMI
TX
C
D
83
L
82
R
57
L
R2A15220FP
56
R
60
L
MAINL
61
R
MAINR
65
L
L
ADCL
53
Z3
64
R
R
708:Z2 mirror
54
ADCR
67
L
0/-6/-12/-18dB
66
R
69
L
SUB1L
L
46
68
R
R
47
SUB1R
71
L
70
R
73
L
72
R
SUB2L
75
L
L
32
Z2
74
R
R
33
SUB2R
79
L
78
R
87
L
86
R
59
L
58
R
L
R
L
R
76
L
77
R
L
REC_L
R
REC_R
FS0dB=4Vrms
FL
FR
C
SW
SL
SR
8ch DAC
PCM1690
I2S(DVD-AUDIO/DSD)x4
24bit
x1
x3
x
a o
FIX
y
CS49834
24bit
TMS320DA830
2nd DSP
1st DSP
.
i
http://www.xiaoyu163.com
E
F
Z3L
MAINR
Z3R
1
2
TONE
Down mix : No use
Tone : Use for Z3
MAINL
1
2
TONE
SL(DAC)
43
SL(DAC)
43
1
91
MCH SL
2
91
SR(DAC)
SR(DAC)
42
90
MCH SR
90
1
39
C(DAC)
2
93
MCH C
38
SW(DAC)
1
SRC
92
MCH SW
2
34
FL(DAC)
34
-6dB
95
FL(MIX)
2
SLC
inverted down mix
41
FL
1
41
40
FR
inverted down mix
94
FR(MIX)
Z2L
SBRC
-6dB
1
35
FR(DAC)
2
Z2L
97
SBL
SBL/LH/LW(DAC)
44
SBL(DAC)BiAMP
62
75
BiAmp
37
Bi-AmpL or 708Z2L
SBLC
64
1
Z2R
96
SBR
Z2R
2
SBR/RH/RW(DAC)
45
SBR(DAC)BiAMP
63
76
36
Bi-AmpR or 708Z2R
65
0.5dB step/each VR
Z2TONE-R
Z2TONE-L
Q
Q
3
7
6
except block
Z2L
omission
Z2R
except708,NA808/1008
Z3L
Z3R
Z2R
42
TONE
0dB FIX
Z2 TONE
Z2L
43
TONE
0dB FIX
38
95
39
96
99
45
Z2R
Z2 Pre
100
44
Z2L
Z3R
97
only 9chModel
SBL
SBR
W/HL
W/HR
Z3 Pre
Z3L
98
0.5dB step/each VR
R2A15218
708 Z2 route
2ch DAC
PCM1789
u 1 6 3
.
TX-NR708/808/1008, TX-NA708/808/1008, HT-RC270, DTR-40.2/50.2, DHC-40.2
G
H
8
9
2
4
9
POWER AMPLIFIER
22
SL
23
SL
24
20
SR
19
SR
18
16
C
17
SL/Z3L
15
Ref. GND
14
SW
SR/Z3R
13
10
SBL/Z2L/Bi_L/LH
FL
11
12
priority terminal
SBR/Z2R/Bi_R/RH
8
FR
7
6
LW/LH/Z3
2
SBL/Z2L/Bi_L/LH
3
SBL
4
RW/RH/Z3
+20dB
100
SBR/Z2R/Bi_R/RH
99
SBR
Except DHC-
98
SW
C
3
1
5
1
5
0
8
9
FL
FR
21
PreSURMUT
0dB FIX
SL
23
SR
0dB FIX
17
SBL
Wide/High
SBR
15
3
5
9
11
12V TRIGGER
OUT
INT
ONK
A
ZONE 2
12V TRIGGER
B
ZONE 3
CONTROL
C
N/A
IR
INT
ONK
A IN
IN
IR
B IN
N/A
REMOTE SENSOR
m
OUT
c o
RI
RI
INTERFACE
RS232
RS232
INTERFACE
from Micom
I
J
K
8
2
9
9
HEADPHONES
SPEAKER TERMINALS
FL
+29dB
FRONT LEFT
FR
+29dB
FRONT RIGHT
SPRLF
C
+29dB
CENTER
SPRLC
+29dB
SURR
LEFT
+29dB
SURR
SPRLSR
RIGHT
+29dB
SUR. BACK
/ Bi Amp
LEFT
SUR. BACK
+29dB
/ Bi Amp
SPRLSB
RIGHT
+29dB
Front Wide/Z2
LEFT
only 9chModel
+29dB
Front Wide/Z2
SPRLFW
RIGHT
only 7chModel
Front High/Z3
LEFT
2
4
9
8
2
9
9
Front High/Z3
H/PMUT
RIGHT
SPRLFH
9.2 or 7.2ch
PREOUT
L
FRONT
R
CENTER
L
SURR
R
L
SB
R
L
FH/FW 9chmodel
R
L
SWMUT
SUBWOOFER
R
PRE OUT
L
ZONE 2
R
L
ZONE 3
R
except JJ

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