Schematic Diagram
5
4
3
2
1
6
D
C
A
B
D
C
A
B
5
4
3
2
1
6
Block Diagrams (Audio section)
1
A
M
UT
SPR
L
_
F
S
P
RL
_
CS
R
L
TUNER PACK
HDMI FLR
X-Tl
MCLK
SP
I
HDMI LRCK
HDMI BCK
HDMI MCK
DIR
DIR LRCK
DIR FLR
DIR BCK
DIR MCK
DIG CLK
DIG SD1
DIG SD0
DIG CLK
2ch ADC
SPI
POWER AMPLIFIER
S
P
I to
M
ic
o
m
PCM1690
(FL/FR)
DSP FLR
8ch DAC
(CT/SW)
(SL/SR)
(BL/BR)
DIR MCK
CX LRCK
CX SCLK
DSP SLR
DSP CSW
DSP SBLR
Q1004
11.2896MHz
Q1001
TC7SZU04FU
Q4001
COAX1
X1001-XTAL
DIG SDO
HDMI BCK
HDMI LRCK
HDMI FLR
HDMI_SPDIF
OPT1
FRONT
OPT2
OPT
+29dB
+29dB
+29dB
+29dB
+29dB
CENTER
SURR. LEFT
SURR. RIGHT
HEADPHONES
DIR LRCK
DIR FLR
DIR MCK
DIR BCK
DSP FLR
(BL/BR)
(SL/SR)
(CT/SW)
(FL/FR)
DSP SBLR
DSP CSW
DSP SLR
CX LRCK
CX SCLK
HDMI MCK
ARC_SPDIF
HDMI BLOCK DIAGRAM
IN1
IN2
IN3
IN4
HDMI
RX
TX
HDMI
PCM9211
Q1005
47
50
FL
FR
100
99
FL
FR
CEN
FR(MIX)
FL(MIX)
FL(DAC)
Q4003
SW +3.5dB
Downmix
FL/FR -12dB
FR(DAC)
FR
70
FL
LBIN
80
LAIN
RBIN
69
RAIN
NJW1298
INVERTING
INVERTING
SR(DAC)
RSBIN
64
SL(DAC)
LSBIN
67
0.5dB step/each VR
SW
SBR
SBL
CEN
FR
FL
SR
SL
19
18
16
15
14
13
Rch
Lch
Rch
Lch
Rch
Lch
Rch
Lch
Rch
Rch
Rch
Lch
TV
CD
12
11
10
9
8
7
6
5
4
2
CBIN
68
C(DAC)
79
Lch
C DIRECTION
L DIRECTION
R DIRECTION
SL DIRECTION
SR DIRECTION
SBL DIRECTION
SBR DIRECTION
78
CAIN
DIRECT C
77
DIRECT SL
LSAIN
SW(DAC)
SRCIN
LBCIN
RT
A
D
L
T
AD
76
DIRECT SR
RSAIN
SBL(DAC)
63
LBBIN
DIRECT SBL
75
LBAIN
DIRECT SBR
74
RBAIN
RBBIN
62
SBR(DAC)
56
RBCIN
55
XI
N
X
O
UT
XTAL-X7001
VMSDO
VMSDI
DIGCLK
DIGSDO
DIGSDI
VMCLK
SDO
SDI
CLK
(HDMISLC)
(HDMI SDA)
MICOM
Q7009
SDI
CLK
SDO
EEPROM
SPI
Q7001
FLDSDO
FRONT
FLDCLK
ML9208A
Q7501
21
22
25
26
27
28
24
28
27
VCR
GAME2
CBL/SAT
BD/DVD
Lch
BAAF1712
23
61
SL
SR
SBL
SBR
98
97
96
95
94
93
**
**
**
**
**
**
**
**
Lch
Rch
AUX IN
(FRONT IN)
FRONT BOARD
MIC AMP
MIC
RI
RI
INTERFACE
COAX 1
(BD/DVD)
OPT1(TV)
OPT2(CD)
BAVD1735
+29dB
LEFT
SW
AV=+20dB
Subwoofer
RIGHT
+29dB
FRONT LEFT
FRONT RIGHT
SPEAKER TERMINALS
ZONE-B LEFT
ZONE-B RIGHT
+
+
-
+
-
+
-
+
-
+
-
-
LP
F
LP
F
+
-
+
-
LP
F
LP
F
LP
F
LP
F
LP
F
LP
F
FR
FL
C
SW
SR
SL
SBR
SBL
Q
34
0
4
Q
80
0
0
4MHz
SUUR. BACK
/HEIGHT
SUUR. BACK
/HEIGHT
MIC DET
HP DET
M
N
86
4
78
8A
SW Preout
MPD70F3746
ADCR
ADCL
48
51
39
44
0 to -21dB / 3dB step
31
32
REC_A1L
REC_A1R
REC_A1L
REC_A1R
33
34
REC_B1L
REC_B1R
REC_C1L
REC_C1R
35
36
37
38
IN
P
U
T
S
E
L
E
C
T
O
R
C
S
4
98
4
4
BADIS1732
BAETC1715
BADIS1732
BAPRC1758
MAIN
OUT
HRM1034
MODEL NO. TX-SR343/444,HT-R494 BLOCK DIAGRAM (PART-1) AUDIO SECTION
TX-SR444,HT-R494
TX-SR444,HT-R494
TX-SR343/444,HT-R494
TX-SR444
TX-SR444,HT-R494
Bluetooth Dongle
