A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
91
RX-V557/HTR-5850/DSP-AX557/RX-V457/HTR-5840/DSP-AX457
SCHEMATIC DIAGRAM (CONVERSION)
RX-V557/HTR-5850/DSP-AX557
★
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。
IC701, 702, 704: TC74HC4052AF
Analog Multiplexer/Demultiplexer
16
VCC
6
INH
10
A
9
B
8
GND
7
VEE
12
0X
14
1X
15
2X
11
3X
1
0Y
5
1Y
2
2Y
4
3Y
LEVEL
CONVERTER
BINARY TO 1-OF-4
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
SW
SW
13
X-COM
3
Y-COM
INHIBIT
0
0
0
0
1
B
0
0
1
1
X
A
0
1
0
1
X
0x, 0y
1x, 1y
2x, 2y
3x, 3y
NONE
IC703: 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
IC705: TC90A49F
3 Line Digital Y/C Separator
15
CKIN
17
FIL
24
8 fsc
4 fsc
5
AIN
Y OUT
LINE
MEMORY
C-BPF
LINE
MEMORY
+
–
C-BPF
DYNAMIC COMB FILTER
VERTICAL EDGE
ENHANCEMENT CIRCUIT
ANALOG
THROUGH MODE
C-BPF
KILLER
Y-LPF
ADC
COLOR
Y DAC
C-BPF
Trap
C-LPF
C DAC
1/2
CLAMP
PLL
11
SDA
12
SCL
13
TEST
14
KILLER
I2C BUS
20 C OUT
IC708: TC74HC4053AF
Analog Multiplexer/Demultiplexer
16
VCC
6
INHIBIT
11
15
14
9
A
C
B
8
GND
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
Clock
CCD 1H
REF
S/H
CCD 1H
REF
S/H
Bip. Block
CCD Block
IC710: TA8772AN
Delay Syatem for Color TV or VCR
30
R-Y OUT
x1 or x1/2
Pulse
Remove
29
B-Y OUT
x1 or x1/2
Pulse
Remove
AGC
Det
27
R-Y IN
28
B-Y CLAMP
DET.
Clamp
Pulse
Ins.
Pulse
HP. GP
225fH
VCO
LPF
AGC
Clamp
26
B-Y IN
25
MODE SW2
24
MODE SW1
23
B-Y FROM
CCD
22
R-Y FROM
CCD
21
GND
20
VGG
19
VOUT1
18
VDB1
17
VDB2
16
1
2
4
3
5
6
7
8
9
10
11
12
13
14
15
VOUT2
R-Y CLAMP
DET.
R-Y TO
CCD
R-Y AGC
DET.
B-Y TO
CCD
VCC
FILTER
ADJ.
S.C.P. IN
B-Y AGC
DET.
PLL
DET.
CLOCK
CLOCK IN
VSS
VIN1
VDD
VIN2
Clamp
Pulse
Ins.
AGC
Det
LPF
AGC
Clamp
Ave
Bias
Det
1/225
32fH
VCO
NOSE
DET
H. AFC
IC711: TA1270BF
Sync Processing System
35
DAC TEST
36
GND
VCX0
V
SEP
CW
MATRIX
34
SDA
33
SCL
32
Ys
31
R-Y1 IN
30
B-Y1 IN
29
Y1 IN
28
I2C GND
27
R-Y2 IN
26
B-Y2 IN
25
Y2 IN
4
3
5
6
7
8
9
10
11
12
13
14
15
APC
3.58MHz
X'tal
37
Y OUT
38
DAC2
2
1
M-X'tal
4.43MHz
X'tal
C GND
C IN
V-SEP
SYNC
IN
SYNC
OUT
H. AFC
SYNC
GND
32fH
VCO
VD OUT
HD OUT
SCP OUT
16 Dig GND
17 CP/HP IN
18 SYNC Vcc
(9V)
19 SW Vcc
(9V)
20 Y/G OUT
21 B-Y/B OUT
22 R-V/R OUT
23 ADRS SW
24 SW GND
48
R-Y/Cr OUT
47
B-Y/Cb OUT
46
SECAM CONT
45
1HDL CONT
44
fsc OUT
43
UV/CbCr SW
42
C Vcc
(5V)
41
DAC Vcc
(5V)
40
Y IN
39
DAC1
LPF / fsc
TRAP
CbCr / UV
SW
SECAM
CONTROL
ACC
fsc
APC
DAC2
Ys
TOF
SYSTEM
SW
P/N ID
DAC
TEST
DEMO
OFFSET
SW
TINT
SYNC
SEP
SUB
COLOR
CP/HP
IN
CHROMA
BLK
BPF
SW
SW
1H DL
CONTROL
PEDESTAL
CLAMP
DAC1
SCP
SW
H C/D
V C/D
Y DL
Y DL
fsc
TRAP
SUB.
CONTRAST
YUV
→
RGB
MATRIX
Y OFFSET
SW
PEDESTAL
CLAMP
PEDESTAL
CLAMP
HI : 2ch/LOW : 24h
I2C BUS
CONTROL
IC712: NJM7809FA
Voltage Regulator
INPUT
OUTPUT
COMMON
R1
R2
Vref
Vcc
Driver
TSD
OCP
GND
OUT
Vcc
1
2
3
IC713: BA50BC0T
Low-Dropout Voltage Regulator with Low Saturation
IC714: NJM7905FA
Voltage Regulator
COMMON
OUTPUT
INPUT
IC706, 707: TC74VHCU04FT
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
IC709: 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
A1
A2
Point:
A-1 Pin 12 of IC711
Point:
A-2 Pin 1 of IC711
0.1
5.0
0
0
0
0
0
-4.9
0
0
0
0
0
0
0
0
2.5
0.1
0
0.1
0.1
4.9
0.1
0
0
0
0
5.0
0
2.5
2.5
2.5
0
0
0
0
4.9
0
0
0
0
2.5
5.0
2.5
2.5
2.5
4.9
1.4
0
1.9
0.1
4.9
0
4.9
4.7
4.7
1.9
1.9
4.9
1.3
1.0
4.9
0.4
4.3
1.2
4.3
4.9
0
0
0
4.9
0
2.6
4.9
4.9
0
1.2
4.3
2.4
2.4
0
0
4.4
4.4
9.1
9.1
0.8
0
0
0.8
2.9
4.3
0
0
0
0
0
-4.9
0
0
4.9
-4.9
0
0
0
0
4.3
1.9
4.9
1.3
1.0
4.9
0.4
0.7
4.3
1.2
4.3
4.9
3.3
1.9
2.1
1.9
0
4.9
0
0
0
5.0
0
4.1
4.1
2.2
0
1.8
6.5
2.4
7.6
0
6.0
5.0
2.0
0
4.6
4.7
4.2
5.7
5.7
5.7
0
4.7
5.8
5.8
0
0
0
0
0
0
-4.9
0
5.1
0
0
0
0
0
0
19.2
9.1
0
0.8
5,1
8.5
-3.4
3.3
3.3
-4.9
-11.1
0
0
0
0.2
4.9
-3.4
-2.8
0
-4.9
0
-4.9
0
-4.9
4.8
5.0
0
5.0
0
5.0
0
0
to SUBTR (2)
HTR-5850: Page 89
H3
RX-V557/DSP-AX557: Page 88
H3
to SUBTR (10)
HTR-5850: Page 89
G9
RX-V557/DSP-AX557: Page 88
F9
to POWER (1)
Page 87
H5
CONVERSION
INPUT
SELECTOR
INPUT
SELECTOR
INPUT
SELECTOR
Y/C
SEPARATER
CHROMA
DECODER
1H DELAY LINE
J model
R, T, A, B, G, E, L models