A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
79
RX-V550/HTR-5750/RX-V450/HTR-5740/DSP-AX450
SCHEMATIC DIAGRAM (FUNCTION 2/2)
★
All voltages are measured with a 10M
Ω
/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。
RX-V450/HTR-5740/DSP-AX450
GND
VOUT
VIN
3
2
VREF
IC501: NJU7201L55
Voltage Regulator
1
Point
1 Pin 13 of IC502
IC503: LC72722
RDS Decoder
+
REFERENCE
VOLTAGE
57kHz
bpf
(SCF)
CCB
TEST
PLL
(57kHz)
ANTIALIASING
FILTER
SMOOTHING
FILTER
RAM
(24 BLOCK DATA)
ERROR CORRECTION
(SOFT DECISION)
SYNC/EC
CONTROLLER
SYNC
DETECT-1
DATA
DECODER
CLOCK
RECOVERY
(1187.5Hz)
MEMORY
CONTROL
OSC/DIVIDER
VREF
CLK(4.332MHz)
SYNC
DETECT-2
VDDA
VSSD
VDDD
RDS-ID
SYNC
SYR
VSSA
MPX IN
DO
CL
DI
CE
T1
T2
T3
T4
T5
T6
T7
X IN
VREF
FL OUT
C IN
X OUT
3
14
15
19
18
24
1
5
6
4
2
20
21
22
23
7
8
9
10
11 16 17
13
12
IC603, 606, 701: TC74HC4053AF
Analog Multiplexer/Demultiplexer
16
VDD
6
INHIBIT
11
15
14
9
A
C
B
8
VSS
7
VEE
12
0X
13
1X
2
0Y
1
1Y
5
0Z
3
1Z
LEVEL
CONVERTER
10
BINARY TO 1-OF-8
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
4
Z-COM
X-COM
Y-COM
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
"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
C
0
0
0
0
1
1
1
1
X
B
0
0
1
1
0
0
1
1
X
A
0
1
0
1
0
1
0
1
X
IC607, 608: TK15420M
Video Amp
–
+
1
2
3
4
5
–
+
6
7
8
OUT A
–IN A
+IN A
VEE
VCC
OUT B
–IN B
+IN B
IC609: TC74HCU04AF
Hex Inverters
1A
1Y
2Y
VCC
6A
1
2
3
4
11
2A
6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7
4Y
8
9
10
GND
IC702: NJM2581M
Video Amp
13
VOUT1
11
VOUT2
9
VOUT3
8
GND
10
V+3
14
V+1
12
V+2
2
NEE1
4
VEE2
6
VEE3
7
PowerSave
5
VIN3
1
VIN1
3
VIN2
75
Ω
Driver
6dB
AMP
BIAS
75
Ω
Driver
6dB
AMP
BIAS
75
Ω
Driver
6dB
AMP
BIAS
REF
IC601, 602, 901: LA7956
Video Switch
1
2
3
4
5
6
7
8
9
VIDEO
OUT
A
B
VIN1
GND
VIN2
VCC
VIN3
VIN4
DRIVER
6dB
AMP
CONTROL
4 INPUT 1 OUTPUT
VIDEO SWITCH
Point
2 Cathode of D501 and Pin 12 of IC502
POWER ON
(Connect the power cable)
POWER OFF
(Disconnect the power cable)
A D501
B IC502
HTR-5750
1
2
B
A
4.9
4.9
3.9
4.0
4.0
4.0
7.5
4.1
4.1
0
0
4.0
4.9
4.9
5.9
5.9
0.3
0
0
0.1
11.5
3.9
3.9
4.9
5.5
0.5
11.2
0
0
4.9
4.9
4.9
4.9
11.2
11.2
11.5
11.5
5.9
5.9
5.9
5.9
6.5
6.5
6.9
6.9
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
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
4.2
4.2
4.2
1.5
1.1
1.9
5.0
5.7
5.6
5.6
5.6
5.6
4.1
4.8
4.8
4.9
4.9
4.8
4.8
4.7
4.7
4.7
4.7
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
-11.6
-11.6
-11.6
4.8
4.1
4.8
4.8
4.8
4.8
4.8
4.7
4.1
0.1
0.1
0.1
0.1
0.1
0.1
0.5
0.5
0
0
0.1
0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
4.7
4.9
4.8
4.8
4.8
4.8
4.7
4.7
4.8
4.8
4.8
4.9
4.9
4.9
4.9
1.5
1.5
4.8
4.8
4.8
2.5
2.4
0
4.8
0
0
0.1
0.1
0
0
4.8
4.8
0.1
0.1
4.9
4.9
4.9
4.9
4.9
4.9
5.0
0
5.1
0.1
0.1
3.7
2.7
0.4
1.5
4.8
4.8
1.2
0
0.9
4.8
4.8
4.8
2.9
0.1
0.4
1.5
5.1
4.9
0
0
0
0
10.0
11.8
1.1
0.1
0.4
-0.5
-0.5
-0.5
-0.4
-0.4
0.4
0
0
0
0
3.6
2.6
2.7
2.7
2.7
4.9
4.9
4.9
4.9
4.9
4.5
-4.9
4.9
0
0.2
0
5.2
5.2
4.9
4.9
-4.9
-4.9
0.3
0.3
-0.3
0.4
0.4
0.4
1.0
-0.6
0.1
0.1
0.1
0.1
0.1
0.1
0.1
-0.4
4.9
4.9
4.9
4.9
4.9
4.9
4.5
4.5
4.5
-1.1
-0.4
-0.6
4.9
5.5
5.5
6.6
0.1
0
6.1
6.4
7.1
4.9
4.9
4.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.9
-4.9
-4.9
-4.9
-4.9
-4.9
4.8
4.9
0.7
0
MICRO COMPUTER
Y/C MIX
Y/C SEPARATION
S-SIGNAL DETECT
Y-INPUT
SELECTOR
C-INPUT
SELECTOR
INPUT
SELECTOR
Y/Cb/Cr
SELECTOR
Page 78
to FUNCTION (1)
F2
Page 85
to VIDEO
D2
Page 82
to MAIN (2)
H10
Page 82
to MAIN (1)
F1
Page 81
to OPERATION (1)
E9
Page 75
to DSP
G1
x: NOT USED
O: USED / APPLICABLE
x: NOT USED
O: USED / APPLICABLE
[HTR-5750, DSP-AX450 only]
[Except DSP-AX450]
HTR-5750
U,C
T
K
A
s16
R549
X
100K
100K
100K
RD35810
RD35810
RD35810
s17
R553
100K
X
X
X
RD35810
s18
R552
100K
X
X
X
RD35810
s19
R555
X
100K
100K
100K
RD35810
RD35810
RD35810
s20
CB511
X
X
X
X
s56
SW901
X
X
X
X
s57
W513
X
X
X
X
s58
CB512
V782550
V782550
V782550
V782550
s53
T601
WC71660
WC71670
WC71660
WC71670
s54
T602
WC71680
WC71690
WC71680
WC71690
RX-V450/HTR-5740/DSP-AX450
J
U,C
R,L
T
K
A
B,G,E
s16
R549
100K
X
X
100K
100K
100K
100K
RD35810
RD35810
RD35810
RD35810
RD35810
s17
R553
100K
100K
X
X
X
X
X
RD35810
RD35810
s18
R552
X
100K
100K
X
X
X
X
RD35810
RD35810
s19
R555
X
X
100K
100K
100K
100K
100K
RD35810
RD35810
RD35810
RD35810
RD35810
s20
CB511
V782640
X
X
X
X
X
X
s56
SW901
X
X
P022MJB
X
X
X
X
V362430
s57
W513
MF40412
X
X
X
X
X
X
s58
CB512
X
V782550
V782550
V782550
V782550
V782550
V782550
s52
J901
X
O
O
O
O
O
O
s53
T601
WC71660
X
X
X
X
X
X
s54
T602
WC71680
X
X
X
X
X
X
Destination
Y/C separ
ate
Destination
Y/C separ
ate
RX-V450, HTR-5740, DSP-AX450 models
HTR-5750 model
