Yamaha RXV-450 Schematic
A
BCDEFGH I JK
L MN
SCHEMATIC DIAGRAM (DSP)
RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450
1
RX-V550/HTR-5750
Reference No. U, C, R, T, K, A, B, G, L, E memo
s1 R57 4.7K AAC
4.9
4.9
0
4.9
3.6
2
3.9
0
4.9
0.2
0
4.9
0
DUTY
4.9
0
2.6
0
0
4.9
3.6
4.9
4.9
4.9
4.9
3.6
0
0
0
3.6
0
0
0
0
0
0
0
s2 MOUNT Digital Out MD/CDR In
s3 MOUNT COAX
RX-V450/HTR-5740/DSP-AX450
Reference No. J U, C, R, T, K, A, B, G, L, E memo
s1 R57 NOT USED 4.7K AAC
s2 MOUNT NO MOUNT Digital Out MD/CDR In
s3 NO MOUNT MOUNT COAX
3.0
1.2
0
3.4
1.2
4.2
3.0
1.2
0
2.54.9
4.7
0
2.5
4.9
2.5
0
3.4
0
3.4
4.9
4.9
3.4
HTR-5750, RX-V450, HTR-5740, DSP-AX450: Page 79
RX-V550: Page 77
to FUNCTION (2)
L10
M10
HTR-5750, RX-V450, HTR-5740, DSP-AX450: Page 78
CORRECTOR
3.9
0
4.9
3
0.1
3.9
4.9
0.3
0.1
4
2.6
3.1
4.8
0
0.1
0
0.4
0.1
0.2
3.9
0.4
3.4
DUTY
CORRECTOR
5
4.9
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
6
0.1
0.1
0
1M SRAM
7
8
0.1
4.9
3.3
0.1
0.1
0.1
0.1
3.3
0.1
3.3
0.1
0.1
0.1
0.1
0.1
3.3
0.1
3.3
0
0
1.2
1.2
3.4
0
0
3.3
3.3
3.3
1.2
1.2
0
0
3.3
0
3.3
3.4
1.2
1.2
0
0
0
3.4
3.4
3.4
1.2
0
0
1.2
0
0.1
0
0
1.2
1.2
0
4.8
3.3
1.5
3.3
3.4
0
0
0
0
3.4
0
DIR
3.4
0
0
3.4
0.1
0.1
0.1
3.4
0
1.7
1.8
0.1
0.1
0.1
1.7
0.1
1.2
0
0
DECODER
3.4
0
0
1.2
1.2
0
0
0
3.4
1.6
1.6
0
1.7
1.7
0.1
0.1
0.1
1.2
1.2
MAIN
0
0
1.6
0
Point: Pin 28 of IC2
3.3
0
0
0
0
1.5
3.4
0
0.1
0.1
0.1
0.1
0
0
3.4
1.2
1.2
0
0
1.2
0
0
0
0.8
0.1
0.1
1.2
0
1.7
1.7
0.1
0
0.1
0.1
1.2
1.2
0
3.3
0.1
0.1
0.1
1.2
1.2
0
0
3.4
0.1
0
0
1.2
1.2
0
0
3.4
0.7
0.7
0
0
1.2
1.3
1.7
3.4
1.7
0
1.8
1.7
1.2
3.3
0
1.6
4.8
4.8
4.8
4.7
4.7
4.8
3.3
3.3
3.3
3.3
0
3.3
2.5
0
3.4
4.8
0
3.3
3.3
4.8
1.7
1.7
0.8
0
0
0
0.7
0.7
1.2
1.3
2.5
0
4.7
0
3.3
3.3
3.3
4M DRAM
0
0.7
0.7
4.8
1.8
1.7
0
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
1.0
1.0
1.0
4.8
1.7
3.4
1.7
~~~
1.7
1.7
1.7
4.9
4.9
0
0
5.0
0
0
3.3
3.3
3.3
2.2
2.2
~
0.7
1.0
~
~
~
~
~
2.2
000
3.3
~
1.7
0.7
0
1.7
1.7
1.7
1.8
1.7
1.7
4.8
0.7
0.7
3.4
0.7
0.7
0
2.5
0.7
0.7
0.7
1.0
1.0
1.0
1.0
0.7
0.7
3.4
0.7
0.7
1.7
1.7
SELECTOR
POST
PROCESSOR
1.5
0.8
1.5
1.9
0
0
1.7
1.0
2.5
3.4
3.4
3.3
0.1
2.5
RX-V550: Page 76
to FUNCTION (1)
3.4
0
1.5
0
0
0
0
0
0
0
3.4
0
0
3.3
3.3
0.1
1.7
1.7
1.5
0.8
1.5
1.9
1.5
4.9
4.9
1.7
1.7
1.7
1.7
1.7
1.7
1.7
4.8
0
A/D
0
4.9
3.3
H2
H2
0
000
IC8: MSM514260E-60JS
4Mbit DRAM
WE
Timing
14
RAS
Generator
29
LCAS
28
UCAS
Column
9
Address
Buffers
5.0 5.0
2.5
2.5
0
A0~A8
VCC
VSS
IC10: SN74LV245APWR
Octal Bus Transceiver with 3-state Outputs
1
DIR
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
10
GND
-0.1
-0.1
-11.6
11.8
0
-0.1
-0.1
-0.1
IC11: µPC29M33T-E1
Voltage Regulator
2.5
2.5
0
Starter Circuit
9
20
21
Standard Voltage
Address
Counter
Row
Address
Buffers
Amp.
Internal
Refresh
Control Clock
Row
9
Deco-
ders
On Chip
VBB Generator
Driver
CENTER
0
11.8
0
-0.1
-0.1
-0.1
-0.1
-0.1
-0.1
0
0
0
-0.1
-0.1
-11.6
0
-11.6
SURROUND L
11.8
-0.1
-0.1
11.8
-0.1
-0.1
-11.6
FRONT L
IC13: PQ012FZ01ZP
Voltage Regulator
Vin
VB
IC18: µPC4570G2
IC19~21: NJM2068MD
Dual OP-Amp
IC22: SN74AHCT08PWR
Quad 2-Input And Gate
5.0
5.0
1.7
2.5
2.5
0
2.5
2.5
2.5
2.5
2.5
2.5
2.5
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
Overheat Protection
1
Specific IC
OUT
1
–IN
1
+IN
1
–V
CC
1
2
3
4
GND
Excessive Electric
Current Protection
3
Vo
42
5
Vc
–+
–+
Vcc141A 1
4B13
4A12
4Y11
3B10
3A9
3Y8
13
9
Column Decoders
Sense Amplifiers
Word
Drivers
20
Vcc
19
OE
18
B1
17
B2
16
B3
15
B4
14
B5
13
B6
12
B7
11
B8
Safety Drive
Limiter
Protection
Sudden Current
+V
CC
8
OUT
2
7
–IN
2
6
5
+IN
2
IC16: AK4628VQ
192kHz 24Bit 8-channel CODEC
31
LIN
32
RIN
27
LOUT1
28
ROUT1
25
LOUT2
26
ROUT2
23
LOUT3
24
ROUT3
21
LOUT4
22
ROUT4
I/O
Controller
I/O
Controller
Memory
Cells
AK4628
OE
27
I/O
16 16
Selector
IC12: PQ025EZ5MZP
Regulator
1
Vin
1
INPUT
3
OUTPUT
2
GND
IC14: 74VHC157MTCX
Quad 2-Input Multiplexer
S
1
E
15
I1d
10
I0d
11
I1c
13
I0c
14
I1b
6
I0b
5
I1a
3
I0a
2
Audio
ADC HPF
ADC HPF
DAC DATTLPF
DAC DATTLPF
DAC DATTLPF
DAC DATTLPF
DAC DATTLPF
DAC DATTLPF
DAC DATTLPF
DAC DATTLPF
I/F
MCLK
LRCK
BICK
SDOUT
SDIN1
SDIN2
SDIN3
SDIN4
8
8
8
8
GND
Output
Buffers
Input
Buffers
Input
Buffers
Output
Buffers
5
Format
Converter
8
DQ1~DQ8
8
8
DQ9~DQ16
8
3
Vo
2
Vc
Zd
9
Zc
12
Zb
7
Za
4
39
MCLK
5
LRCK
4
BICK
10
DAUX
1
SDOS
9
SDTO
6
SDTI1
7
SDTI2
8
SDTI3
12
SDTI4
9
10
IC1 : MM74HCU04SJX
Hex Inverters
1
A1
2
Y1
3
A2 Y6
4
Y2
5
A3
6
Y3
GND
7
TDM0
LOOP0/SDA/CDTI
DIF1/SCL/CCLK
DIF0/CSN
P/S
MCLK
DZF1
AVSS
AVDD
VREFH
VCOM
4443424140393837363534
1
SDOS
2
I2C
3
SMUTE
4
BICK
5
IC3: TC74HCT00AF
Quad 2-Input Nand Gate
VCC
14
A6
13
12
11
A5
Y5
10
A4
9
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
Vcc141A 1
4B13
4A12
4Y11
3B10
3A9
3Y8
Y48
IC2: LC89057W-VF4D-E
Digital Audio Interface Transceiver
1
RXOUT
2
RX0
3
RX1
RX2
RX3
RX4
RX5/VI
RX6/UI
LPF
TMCK/PIO0
TBCK/PIO1
TLRCK/PIO2
TDATA/PIO3
TXO/PIOEN
4
5
8
9
10
13
44
45
46
47
48
Input
Selector
Modulation
&
Parallel Port
Cbit, Ubit
Demodulation
&
Lock detect
PLL
Clock
Selector
Microcontroller
I/F
Data
Selector
1/N
IC4: NJM2904M
XMODECICECLINTAUDIO/VOEMPHA/UO
Dual OP-Amp
V–
41383948353332
Q6
Q11
Q12
Q5
Q7
OUTPUT
Q13
37
36
21
24
16
17
20
22
23
DO
RERR
R DATA
SDIN
RMCK
RBCK
RLRCK
SBCK
SLRCK
INPUTS
–
+
Q2 Q3
Q1
Q4
Q10
Q9Q8
29 28 27 34
XIN XOUT XMCK CKST
IC6: CY62128BLL-70SCT
Memory
0
A
A
1
A
2
A
3
A
4
A
5
A
6
ROW DECODER
A
7
A
8
CE
1
CE
2
WE
OE
INPUT BUFFER
512 x 256 x 8
ARRAY
COLUMN
DECODER
A9A10A11A12A13A14A15A
16
POWER
DOWN
SENSE AMPS
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
IC7: YSS930-SZ
Programmable 32 bit DSP
SDI7
SDI6
SDI5
SDI4
SDI3
SDI2
SDI1
SDI0
SDWCK
SDBCK
XO
XI
PLL
CPO
DSP Internal Clock CK
(30.72 ~ 40.96 MHz)
RAMD15-0
CASN
RASN
0
1
2
3
4
5
6
7
RAMWEN
RAMOEN
RAMA17-0
32 bit x 1024 word
INTERFACE
EXTERNAL MEMORY
32 bit DSP CORE
SDO INTERFACE
SDO7
SDI INTERFACE
DATA RAM
ZEROF7R-0L
SDO6
SDO5
SDO4
SDO3
SDO2
OVF
END
SDO1
SDO0
CONTROL SIGNAL
MPLOAD
BCKOP
WCKOP
CONTROL REGISTER
PROGRAM RAM
COEFFICIENT RAM
ADDRESS RAM
SDBCKO
SDWCKO
µ-COM INTERFACE
50 bit x 1024 word
16 bit x 1024 word
17 bit x 256 word
/CS
SO
SI
SCK
IOPORT19-0
IOPORT0
IOPORT1
IOPORT2
IOPORT3
IOPORT4
IOPORT5
IOPORT6
IOPORT7
AVSS
AVDD
VDD1
IOPORT8
IOPORT9
IOPORT10
IOPORT11
IOPORT12
IOPORT13
IOPORT14
IOPORT15
VDD2
VDD2
SDI0
SDI1
SDI2
SDI3
SDI4
SDI5
SDI6
SDI7
SDBCK
SDWCK
/IC
SCKSISO
9998979695949392919089888786858483828180797877
VSS
1
100
XO
2
XI
3
4
5
6
7
8
9
10
11
12
CPO
13
14
15
(NC)
16
17
18
19
20
21
22
23
24
25
26272829303132333435363738394041424344454647484950
VSS
SDO0
SDO1
SDO2
SDO3
SDO4
SDO5
SDO6
SDO7
IOPORT16
IOPORT17
IOPORT18
IOPORT19
VDD1
RAMD0
/CS
RAMD1
VDD1
RAMD2
RAMA17
RAMA16
RAMD3
RAMD4
RAMA15
RAMA14
RAMD5
RAMD6
RAMA13
RAMA12
RAMD7
RAMD8
RAMA11
VSS
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
VDD2
RAMD9
VDD2
RAMA10
RAMA9
RAMA3
RAMA4
RAMA2
RAMA5
VDD1
RAMA1
RAMA6
RAMA0
RAMA7
RAMA8
RASN
RAMOEN
RAMWEN
CASN
RAMD15
RAMD11
RAMD13
VDD1
RAMD12
RAMD11
RAMD10
VSS
★ All voltages are measured with a 10MΩ/V DC electronic volt meter.
★ Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
★電圧は、内部抵抗10MΩの電圧計で測定したものです。
★
s
印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、パーツリス
トに記載されている部品を使用してください。
★本回路図は標準回路図です。改良のため予告なく変更することがございます。
LRCK
SDTI1
SDTI2
SDTI3
SDTO
DAUX
DFS0
6
7
8
9
10
11
1213141516171819202122
PDN
TVDD
DVDD
DVSS
TST1
SDTI4
DZFE
CAD1
CAD0
LOUT4
ROUT4
33
DZF2/OVF
32
RIN
31
LIN
30
NC
29
MASTER
28
ROUT1
27
LOUT1
26
ROUT2
25
LOUT2
24
ROUT3
23
LOUT3
75
A
BCDEFGH I JK
L MN
RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450
SCHEMATIC DIAGRAM (FUNCTION 1/2) RX-V550
1
2
Page 77
to FUNCTION (2)
L4 Page 75
to DSP
I1 Page 80
to OPERATION (4)
K4
HP AMP.
MUTE
10.0
3
0
x: NOT USED
O:USED / APPLICABLE
11.8
0
0
0
4
0
0
-11.7
0
0.7
0
0
0.7
0
9.3
9.3
0
0
0
Page 80
H8
to OPERATION (1)
0
0
-9.2-9.8
0
-9.2
FRONT L
11.8
0.1
0
5
000
0
0
0
0
0
0
0
0
0
6
0
0
0
0
0
0
0
0
0
SELECTOR/
VOLUME
0
0
0
0
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0.1
SURROUND L
0.1
0.1
0
7.0
-6.9
0000000
0
0
0
0.1
0
0
11.8
7.0
7.7
8
7.7
0.1
0.8
0.8
0
MUTE
0.1
0
-6.9
0
0
-7.9
-7.0
-11.7
9
11.8
-11.8
0.1
0.1
0.1
CENTER
0
0.1
-11.8
MUTE
0.1
0
0
0
0
0
-11.6
0
-11.6
-11.6
0
-11.6
0
0
0
MUTE
-11.6
Page 83
A1
to POWER (1)
Page 83
A2
to POWER (1)
IC301: BD3816K1
Input Select & Volume Control
AGND13
ROUTC2
ROUTC1
ROUTB2
ROUTB1
ROUTA2
ROUTA1
AGND12
VCC
VEE
AGND11DACL
MUTE
THGND
Output
mode
select
GOUTCB
VINCB
TREBLE
BASS
GOUTSL
GOUTFR
VINSL
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
VINFR
GOUTFL
VINFL
AGND10
TNF1
TNF2
BNFA1
BNFB1
BNFA2
BNFB2
OUTFR
OUTFL
AGND9
OUTC
OUTSR
OUTSL
OUTCB
AGND8
OUTSW
AGND7
VINC
GOUTC
VINSR
GOUTSR
80
0
-11.6
AGND1
0
INA1
INA2
INB1
INB2
INC1
INC2
IND1
IND2
INE1
INE2
INF1
INF2
AGND2
INDVDFR
INDVDFL
INDVDC
INDVDSR
INDVDSL
INDVDCB
INDVDSW
AGND3
OUT1
OUT2
79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
1
2
3
4
5
Input select
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
AGND4
INDSPFR
INDSPFL
INDSPC
REC A
ING SW
INDSPSL
INDSPSR
REC B
REC C
6.1ch select
INDSPCB
Vcc V
FRL select
AGND5
INDSPSW
EE
GOUTSW
Master
volume
VINSW
AGND6
LOGIC
10
76
★ All voltages are measured with a 10MΩ/V DC electronic volt meter.
★ Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
★電圧は、内部抵抗10MΩの電圧計で測定したものです。
s
印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、パーツリス
★
トに記載されている部品を使用してください。
★本回路図は標準回路図です。改良のため予告なく変更することがございます。
IC302: BD3841FS
Function Switch
GND
CKZ2
DTZ2
VSS
GND
DTL
VCCNCNC
+–+
DVL
DTR
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
LOGIC
F-SW2
F-SW1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
VIL
AXL
AXR
F-SW1: INPUT FUNCTION 1
*
F-SW2: INPUT FUNCTION 2
VIR
–
DVR
NC
MIL
NC
MIR
NC
COL
NC
COR
Z2L
+–+
TUL
Z2R
–
TUR
IC303, 304, 306: NJM2068MD
Dual OP-Amp.
E
E
E
E
OUT
–IN
+IN
–V
1
1
2
1
–+
3
1
4
CC
–+
+V
CC
8
OUT
2
7
–IN
2
6
5
+IN
2
IC305: NJM4556AL
Dual OP-Amp
V+
8
2, 6
–INPUT
+INPUT
3, 5
V–
4
OUTPUT
1, 7
A
+
BCDEFGH I JK
L MN
SCHEMATIC DIAGRAM (FUNCTION 2/2) RX-V550
RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450
1
2
4.9
4.8
-4.9
4.9
4.9
x: NOT USED
0.7
0
O: USED / APPLICABLE
Point 1 Pin 13 of IC502
Point 2 Cathode of D501 and Pin 12 of IC502
A D501
B IC502
(Connect the power cable)
POWER ON
POWER OFF
(Disconnect the power cable)
4.9
3
0
0
0
4.9
0
0
0
4
0
0
0
-4.9
-4.9
-4.9
0
0
0
-4.9
0
0
4.9
0
4.9
0
4.9
5
4.9
4.9
4.9
Y/Cb/Cr
SELECTOR
INPUT
SELECTOR
0
0
3.9
7.1
11.2
3.9
5.5
6.6
0.1
0
11.2
3.9
5.5
4.9
6.1
11.2
6.4
IC702: NJM2581M
Video Amp
75Ω
BIAS
BIAS
BIAS
6dB
Driver
AMP
75Ω
6dB
Driver
AMP
75Ω
6dB
Driver
AMP
REF
14
13
12
11
10
9
8
V+1
VOUT1
V+2
VOUT2
V+3
VOUT3
GND
1
VIN1
5.5
4.9
0.5
NEE1
VIN2
VEE2
VIN3
VEE3
PowerSave
2
3
4
5
6
7
IC601, 602, 901: LA7956
Video Switch
6dB
AMP
DRIVER
123456789
VIDEO
OUT
CONTROL
A B VIN1 GND VIN2 VCC VIN3 VIN4
4 INPUT 1 OUTPUT
VIDEO SWITCH
x: NOT USED
O: USED / APPLICABLE
x: NOT USED
O: USED / APPLICABLE
Page 76
F2
to FUNCTION (1)
4.8
4.8
-11.6
4.8
11.8
5.0
5.7
4.8
-11.6
4.8
4.8
-11.6
4.8
4.1
4.8
6
7
8
9
10
C-INPUT
SELECTOR
5.9
0.1
4.9
0
4.0
4.0
0
4.0
0.3
11.5
0
7.5
4.1
4.0
5.9
0
4.9
4.1
Y-INPUT
SELECTOR
11.5
5.9
5.9
6.5
5.2
11.5
5.9 5.9
6.5
5.2
4.9
-0.4
-1.1
4.9
0.1
-0.6
4.9
-0.4
★ All voltages are measured with a 10MΩ/V DC electronic volt meter.
★ Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
6.9
0.1
0
6.9
0.1
0
0.1
0.1
0.1
4.5
4.5
0.1
0
0
-4.9
0.3
0.1
4.9
0
0
0
0
0
0
0
0
0
4.9
4.9
0
0
0.4
0
S-SIGNAL DETECT
4.9
2.72.7
0.1
0.1
0.1
0
0
2.7
0
4.9
2.6
3.6
4.9
0
0
0.1
0
Y/C SEPARATION
4.9
0
0
0.1
0.2
0.3
-4.9
0
0.4
★ 電圧は、内部抵抗10MΩの電圧計で測定したものです。
★
s
印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、パーツリス
トに記載されている部品を使用してください。
★ 本回路図は標準回路図です。改良のため予告なく変更することがございます。
Y/C MIX
0
0.1
4.9
-0.6
4.9 4.9
0.1
-0.3
0.4
0.4
H10Page 82
5.6
A
10.0
to MAIN (2)
Page 82
4.5
0
-4.9
0
0
0
4.2
4.2
1.1
1.1
4.2
1.5
-0.5
-0.5
0.4
-0.5
1.9
0.1
-0.4
-0.4
0
F1
to MAIN (1)
U, C, A models only
5.6
0
4.9
5.1
5.6
2
00
4.1
5.6
4.8
4.8
2.9
0.1
4.8
0
4.8
4.8
0.41.5
0
0.1
4.7
4.9
0.1
0.1
4.8 4.8
4.8
4.7
4.7
2.7
4.7
4.7
1.5
0.4
4.8
0.9
0
1.2
4.8
4.9
4.9
4.8
4.8
4.8
4.8
4.7
4.9
4.9
4.9
5.0
5.1
0.1
0.1
3.7
4.8
4.8
MICRO COMPUTER
4.8
B
0.1
4.8
4.8
4.8
4.7
4.8
0
0.1
0
2.5
0
1
4.9
4.9
2.4
0
0.1
0.1
0.1
4.9
4.9
4.9
1.5
4.8
1.5
4.8
4.8
4.8
0.1
4.9
4.9
0
0.1
0.1
0.1
0
0
4.8
4.8
4.8
4.8
4.8
0.1
4.1
4.7
0.1
0.5
0.1
0.1
0.1
0.5
0.1
0
IC607, 608: TK15420M
Video Amp
1
OUT A
2
–IN A
+IN A
VEE
4.94.5
–+
3
4
VCC
8
7
OUT B
– +
–IN B
6
5
+IN B
IC609: TC74HCU04AF
Hex Inverters
1
1.0
1A
2
1Y
3
2A 6Y
4
2Y
5
3A
6
3Y
GND
7
VCC
14
6A
13
12
5A
11
5Y
10
4A
9
4Y8
IC603, 606, 701: TC74HC4053AF
Analog Multiplexer/Demultiplexer
VDD
INHIBIT
16
6
11
VSS
VEE
A
10
B
9
C
8
7
12
0X
13
1X
2
0Y
1
1Y
5
0Z
3
1Z
LEVEL
CONVERTER
DECODER WITH INHIBIT
SW
SW
BINARY TO 1-OF-8
SW
SW
SW
INPUT STATES
INHIBIT
0
14
X-COM
15
Y- C O M
4
SW
Z-COM
0
0
0
0
0
0
0
1
B
A
C
0
0
0
0
1
0
1
0
0
1
1
0
0
0
1
0
1
1
1
0
1
1
1
1
X
X
X
"ON" CHANNNEL (S)
0X, 0Y, 0Z
1X, 0Y, 0Z
0X, 1Y, 0Z
1X, 1Y, 0Z
0X, 0Y, 1Z
1X, 0Y, 1Z
0X, 1Y, 1Z
1X, 1Y, 1Z
NONE
Page 80
E8 Page 75
to OPERATION (1)
IC501: NJU7201L55
Voltage Regulator
VREF
1
GND
G1
to DSP
VREF
VDDA
VSSA
MPX IN
3
4
2
DO
20
CL
21
DI
22
CE
23
T1
7
T2
8
T3
9
T4
10
IC503: LC72722
RDS Decoder
32
VOUTVIN
1 5 6
REFERENCE
VOLTAGE
ANTIALIASING
57kHz
FILTER
(SCF)
(24 BLOCK DATA)
CCB
TEST
11 16 17 13 12
T5T6T7
bpf
RAM
MEMORY
CONTROL
FL OUT
VREF
SMOOTHING
FILTER
ERROR CORRECTION
C IN
(SOFT DECISION)
CLK(4.332MHz)
OSC/DIVIDER
X IN
PLL
(57kHz)
X OUT
CONTROLLER
SYNC
DETECT-1
CLOCK
RECOVERY
(1187.5Hz)
DATA
DECODER
SYNC/EC
SYNC
DETECT-2
14
15
19
18
24
VDDD
VSSD
RDS-ID
SYNC
SYR
77
A
BCDEFGH I JK
RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450
L MN
SCHEMATIC DIAGRAM (FUNCTION 1/2) HTR-5750
RX-V450/HTR-5740/DSP-AX450
1
2
Page 79
to FUNCTION (2)
L4 Page 75
to DSP
I1 Page 81
to OPERATION (4)
J6
HP AMP.
MUTE
10.0
3
0
0.7
9.3
9.3
0
0
0
0
Page 81
11.8
0
0
0
4
0
0
0.7
0
0
0
0
-9.2
-9.2-9.8
to OPERATION (1)
G9
0
-11.7
0
FRONT L
11.8
0.1
5
000
0
0
0
0
0
0
0
0
0
6
0
0
0
0
0
0
0
0
SELECTOR/
0
0
0
0
0
7
0
0
0
0
0
0
0
0
0
0
VOLUME
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1
0.1
SURROUND L
0.1
0.1
0
7.0
-6.9
0000000
0
0
0
0.1
0
0
11.8
7.0
7.7
8
7.7
0.1
0.8
0
MUTE
0.8
0.1
0
-6.9
0
0
-7.9
-7.0
-11.7
9
11.8
-11.8
0.1
0.1
0.1
CENTER
0
0.1
-11.8
MUTE
0.1
0
0
0
0
0
-11.6
0
-11.6
-11.6
0
-11.6
0
0
0
MUTE
-11.6
Page 83
A1
to POWER (1)
Page 83
A2
to POWER (1)
IC301: BD3816K1
Input Select & Volume Control
AGND13
ROUTC2
ROUTC1
ROUTB2
ROUTB1
ROUTA2
ROUTA1
AGND12
VCC
VEE
AGND11DACL
MUTE
THGND
Output
mode
select
VINCB
GOUTCB
TREBLE
BASS
GOUTSL
GOUTFR
VINSL
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
VINFR
GOUTFL
VINFL
AGND10
TNF1
TNF2
BNFA1
BNFB1
BNFA2
BNFB2
OUTFR
OUTFL
AGND9
OUTC
OUTSR
OUTSL
OUTCB
AGND8
OUTSW
AGND7
VINC
GOUTC
VINSR
GOUTSR
0
-11.6
AGND1
0
AGND2
INDVDFR
INDVDFL
INDVDC
INDVDSR
INDVDSL
INDVDCB
INDVDSW
AGND3
80
79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
REC B
REC C
1
INA1
2
INA2
3
INB1
4
INB2
5
INC1
INC2
IND1
IND2
INE1
INE2
INF1
INF2
OUT1
OUT2
Input select
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
AGND4
INDSPFR
INDSPFL
INDSPC
ING SW
INDSPSR
REC A
INDSPSL
6.1ch select
INDSPCB
Vcc V
FRL select
INDSPSW
AGND5
EE
GOUTSW
Master
volume
VINSW
LOGIC
AGND6
10
78
★ All voltages are measured with a 10MΩ/V DC electronic volt meter.
★ Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
★電圧は、内部抵抗10MΩの電圧計で測定したものです。
s
印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、パーツリス
★
トに記載されている部品を使用してください。
★本回路図は標準回路図です。改良のため予告なく変更することがございます。
IC303, 304, 306: NJM2068MD
Dual OP-Amp.
1
OUT
1
2
–IN
1
–+
3
+IN
1
4
–V
CC
+V
CC
8
OUT
7
– +
–IN
6
5
+IN
IC305: NJM4556AL
Dual OP-Amp
V+
8
2
2
2
–INPUT
+INPUT
2, 6
3, 5
V–
4
OUTPUT
1, 7
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