TX-SR308 HT-R280/ 380 / 538/ RC230
SCHEMATIC DIAGRAMS-1a
BLOCK DIAGRAM , AUDIO SECTION
TX-SR308 HT-R280/ 380 / 538/ RC230
A
1
2
3
4
5
B
C
D
E
F
G
H
6
7
8
I
J
K
MAIN R
MAIN L
REC L
REC R
SUB L
AMUT
Z2MUT
SPRLB_SPB
SPRLF
SPRLCS
FRONT LEFT
FRONT RIGHT
CENTER
SURR. LEFT
SURR. RIGHT
SPEAKER TERMINALS
XIN
XOUT
5MHz
VCR/DVR OUT
TONE
TONE
INVERTING
INVERTING
+29dB
+29dB
+29dB
+29dB
+29dB
+29dB
POWER AMPLIFIER
FR
CEN
CEN
SW
R2A15218FP
TUNER PACK
DIGSDI
DIGSDO
DIGCLK
M66005
XOUT
XIN
500KHz
FLDSDO
Z2 R
Z2 L
MJJ EXCEPT
(FRONT IN)
HEADPHONES
Q7002
Downmix
Subwoofer
UPORT
UPORT OPTION UNIT
TV/CD
GAME
CBL/SAT
VCR/DVR
Q4001
FLDCLK
DIR
2ch ADC
COAX 1
OPT1
OPT2
TX
HDMI
OUT
HDMI
LTAD
RTAD
RTAD
DIR LRCK
DIR FLR
HDMI MCK
HDMI BCK
HDMI LRCK
HDMI FLR
24.576MHz
X171-XTAL
PCM9210
PCM1690
Q302
Q301
SW
FL
C
FR
DIR MCK
+
-
+6dB
+
-
+6dB
+
-
+6dB
8ch DAC
+
-
+6dB
+
-
+6dB
+
-
+6dB
+
-
+6dB
+
-
+6dB
LPF
Q401B
LPF
Q401A
LPF
Q402B
SR
SL
SBR
SBL
LPF
Q402A
LPF
Q403B
LPF
Q403A
LPF
Q404A
LPF
Q404B
DIR MCK
DIR FLR
DIR LRCK
HDMI MCK
HDMI BCK
HDMI LRCK
HDMI FLR
SPI
SPI
SPI
DIG CLK
DIG SDO
DIR BCK
DIG SD1
DIG SD0
DIG CLK
Q701
uPD70F3746
MICOM
VMSDI
VMSDO
SPI
XTAL-X501
EEPROM
CLK
Q705
SPI
SDO
CLK
SDI
SDI
SDO
FRONT
HDMI BLOCK DIAGRAM
SPI to Micom
UNIVERSAL PORT
U PORT R
U PORT L
ZONE2 L
ZONE2 R
MINI JACK IN
(REPEATER)
TRANSCEIVER
HDMI
RI
INTERFACE
RI
DVD/BD
IN1
HDMI
RX
IN2
IN3
SL
SR
SBR
SBR
SW
SBL
FL/FR -12dB
SW -1.5dB
AV=+15dB
SW-PREOUT
TX-SR308/HT-R538/HT-RC230
ONLY
SB-PREOUT
SUBWOOFER
ONLY
HT-R380/HT-R280
SPKR B
LEFT
RIGHT
FL
SBL
(SBR)
(SBL)
(SL)
(SR)
SL
SR
DIR BCK
DIR MCK
VMCLK
DSP SLR
DSP CSW
CX SCLK
CX LRCK
DSP SBLR
DSP FLR
HDMI_SPDIF
DSP SLR
DSP CSW
CX SCLK
CX LRCK
DSP SBLR
DSP FLR
(FL/FR)
(CT/SW)
(SL/SR)
(BL/BR)
(FL/FR)
(CT/SW)
(SL/SR)
(BL/BR)
X-TO
X-Tl
MCLK
(HMDI SLC)
(HMDI SDA)
Q4003
FR
FL
1
2
68
69
66
67
64
65
63
62
60
61
58
59
90
91
47
46
2
3
6
5
14
15
8
9
12
11
17
18
21
20
23
24
38
95
94
43
93
42
98
41
97
40
96
39
100
37
99
36
44
45
73
72
84
85
86
13
12
7
8
55
54
83
9
10
47
48
8
29
28
3
4
31
7
30
15
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
17
19
18
23
24
20
21
25
68
69
70
23
24
22
12
13
6
108
107
106
2
5
50
51
78
79
81
82
70
71
75
76
14
20
39
6
7
8
9
10
11
40
AUDIO ANALOG SIGNAL(TV/CD)
FRONT L
FRONT R
DIGTAL AUDIO SIGNAL(OPT-1)
