TX-NR906/NA906
BLOCK DIAGRAMS-1
AUDIO SECTION
TX-NR906/NA906
A
1
2
3
4
5
B
C
D
E
F
G
H
SPDIF
RX0
RX5
MCH SR
RX6
RX7
D
A
C_FL
D
A
C_SL
D
A
C_SR
D
A
C_SBR
D
A
C_SBL
V_OUT_L
V_OUT_R
D
A
C_FR
DAC FL
MIX L
MIX R
DAC FR
D
A
C_CT
D
A
C_SW
MCH C
DAC C
MCH SW
DAC SW
MCH SL
MAIN L
MAIN R
DAC SL
D
A
C CT2
D
A
C SW2
MCH_SBR
MCH_SBL
MCH_SR
MCH_SL
MCH_SW
MCH_CT
CENTER
SURR LEFT
SURR RIGHT
ZONE2 RIGHT
VCR/DVR OUT
TAPE OUT
SURR BACK
FRONT RIGHT
FRONT LEFT
- FR
ONT RIGHT(BTL) +
- FR
ONT LEFT(BTL) +
TAPE
VCR/DVR IN
CBL/SAT
GAME/TV
DVD
OUT
MAIN,SUB
IN 1-4
ch3
ch4
ch14
SURR BACK
or Bi-AMP LEFT
or Bi-AMP RIGHT
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
OPTICAL IN 1
DIGITAL IN
(FRONT)
COAX IN 2
COAX IN 1
HDMI
REMOTE
SENSOR
SPEAKER TERMINALS
7 CH
POWER
AMPLIFIERS
C
SBL
HDMI
I/F
NET BOARD
NALAN-9121
SD-20 to 27
HDMI BOARD
NAHDM-9114
SD-15 to 19
FLASH MEMORY
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
PRE OUT
CD
DC,DD Type Only
TUNER UNIT
HD RADIO:
DC,DD Type only
AM LOOP
ANTENNA
FM
ANTENNA
SW
R
L
R
L
ZONE2 PREOUT/LINEOUT
TONE
Q4204 R2S15211FP
Audio Selector, Volume, Tone
0dB FIX
ZONE3 PREOUT/LINEOUT
ADC
-6dB
-6dB
Q3041
CS42516
MAIN B
ZONE2
ZONE3
C2
R
L
FL
FR
C
SW
SL
SR
SBL
SBR
Q4305
NJU7313A
HEADPHONES
(DVD audio,etc)
Q4306
NJU7311A
0dB
Video REC
0dB
-6dB
-6dB
Q4405
CS3318
VIDEO IN
AUX 2
AUX 1
Q4029
TC94A46CFG
Analog Switch Array
Analog Switch
Analog Switch
Analog Switch
Volume
ch13
ch12
ch11
ch10
ch9
ch8
ch2
RIAA
XM
Sirrus
MAIN A
DIR
TONE
0dB FIX
NJU7313A
ch7
ch6
ch5
Q4304
NJU7312A
NJU7312A
0dB FIX
0dB FIX
1
2
3
SETUP MIC
3
2
1
OPTICAL OUT
COAX IN 3
MUL
TI 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
.
.
.
.
DSP BLOCK
SD-10, 11
I2S/DSD
MULTIPLEXER
TC74VHC157FT
Q3001
TC74VHC157FT
<Note>
Refer to SCHEMATIC DIAGRAM-9 and -29 (SD-9 and SD-29)
for digital audio signal flow wave forms.
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
+6dB
VLSC
2nd DSP Q3501 TMS320D788E001BRFP266
(SD-11)
1st DSP Q3401 TMS320D790E001BZDH275
(SD-10)
3rd DSP Q3601 TMS320D707E001BRFP250
(SD-11)
