Onkyo TX-SR876

BLOCK DIAGRAMS-1
AUDIO SECTION
TX-SR876/SA876
A
1
2
3
4
5
BCDEFGH
SPDIF
RX0
RX5
MCH SR
RX6
RX7
DAC_FL DAC_SL DAC_SR DAC_SBR DAC_SBL
V_OUT_L V_OUT_R
DAC_FR
DAC FL
MIX L
MIX R
DAC FR
DAC_CT DAC_SW
MCH C
DAC C
MCH SW
DAC SW
MCH SL
MAIN L
MAIN R
DAC SL
DAC CT2 DAC SW2 MCH_SBR MCH_SBL MCH_SR MCH_SL MCH_SW MCH_CT
CENTER
SURROUND LEFT
SURROUND RIGHT
ZONE2 RIGHT
VCR/DVR OUT
TAPE OUT
SURROUND BACK
FRONT RIGHT
FRONT LEFT
- FRONT RIGHT(BTL) +
- FRONT LEFT(BTL) +
TAPE
VCR/DVR IN
CBL/SAT
GAME/TV
DVD
OUT
IN 1-4
ch3
ch4
ch14
SURROUND BACK
or Bi-AMP LEFT
or Bi-AMP RIGHT
OPTICAL IN 1
DIGITAL IN
(FRONT)
COAX IN 2
COAX IN 1
HDMI
C
SBL
HDMI
I/F
FLASH ROM
SD_RAM
I2S
DSD
FL
FR
SL
SR
+20dB
SW2
I2S
I2S
DSD
PHONO
OPTICAL IN 2
+29dB
+29dB
+29dB
+29dB
+29dB
+29dB
+29dB
ZONE2 LEFT
SBR
L
FRONT
SURR
SURR
BACK
R
SUBWOOFER
CENTER
L
R
L
R
CD
(DC,DD Type Only)
SW
R
L
R
L
ZONE2 PREOUT/LINEOUT
TONE
Q4204 R2S15211FP
0dB FIX
ZONE3 PREOUT/LINEOUT
ADC
-6dB -6dB
Q3041
CS42516
MAIN B
Zone2
Zone3
C2
RL
FL
FR
C
SW
SL
SR
SBL
SBR
Q4305
NJU7313AM
HEADPHONES
(DVD audio,etc)
Q4306
NJU7311AM
0dB
Video REC
0dB -6dB
-6dB
Q4405
CS3318-
CQZR
VIDEO IN
AUX 2
AUX 1
Q4029
TC94A46CFG
ch13
ch12
ch11
ch10
ch9
ch8
ch2
RIAA
XM
Sirrus
MAIN A
DIR
TONE
0dB FIX
NJU7313AM
ch7
ch6
ch5
Q4304
NJU7312AM
NJU7312A
0dB FIX
0dB FIX
1
2
3
SETUP MIC
3
2
1
OPTICAL OUT
.
COAX IN 3
MULTI CHANNEL INPUT
FL
FR
C
SW
SL
SR
SBL
SBR
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
R
PCM1796
DAC
PCM1796
DAC
Q3701 Q3721 Q3741 Q3761 Q3781
PCM1796
DAC
PCM1796
DAC
PCM1796
DAC
TC74VHC157FT MULTIPLEXER
. . . .
I2S/DSD
MULTIPLEXER
TC74VHC157FT
Q3001
TC74VHC157FT
<Note>
Refer to SCHEMATIC DIAGRAM-9 and -21 (SD-9 and SD-21)
for digital audio signal waveforms.
DSP BLOCK
SD-10, 11
2nd DSP Q3501 TMS320D788E001BRFP266
(SD-11)
1st DSP Q3401 TMS320D790E001BZDH300
(SD-10)
3rd DSP Q3601 TMS320D707E001BRFP250
(SD-11)
Analog Switch Array
Analog Switch
HDMI BOARD
NAHDM-9114
SD-15 to 19
Analog Switch
Analog Switch
Analog Switch
Vol um e
Audio Selector, Volume, Tone
SPEAKER TERMINALS
7 CH
POWER
AMPLIFIERS
PRE OUT
RS-232
TRANCEIVER
RS-232
Q3031 ICL3221E
RI
RI
Q7001
M3087BFKBGP
MAIN MICROPROCESSOR
INTERFACE
IR OUT
IR
IR IN
NAVD-9052 SD-6
NADG-9074 SD-9
12V TRIGGER
OUT ZONE 2
12V TRIGGER
CONTROL
REMOTE
SENSOR
TUNER UNIT
HD RADIO:
DC,DD Type only
AM LOOP
ANTENNA
FM
ANTENNA
(TX-SA876 Only)
TUNER
L
R
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC