Yamaha DSP-AX457 - SCHEMATIC DIAGRAM (SUBTRANS) RX-V457;HTR-5840;DSP-AX457

A
1
2
3
4
5
6
7
8
9
10
BCDEFGH I JK
L MN
RX-V557/HTR-5850/DSP-AX557/RX-V457/HTR-5840/DSP-AX457
SCHEMATIC DIAGRAM (SUBTRANS)
89
HTR-5850
★ 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。
1
2
Anode
Cathode
4
3
Collctor
Emitter
IC401, 403: TLP421
Photo Transistor
IC402: TC4013BP
Dual D-type Flip Flop
4
RESET1
1
Q1
6
SET1
5
DATA1
CL
3
CLOCK1
CL
CL
CL
CL
CL
2
Q1
10
RESET2
13
Q2
8
SET2
9
DATA2
7
VSS
14
VDD
11
CLOCK2
12
Q2
CL
CL
CL
CL
CL
CL
GND
VOUTVIN
32
VREF
IC452: NJU7201L55
Voltage Regulator
1
IC601, 602, 901: LA7956
Video Switch
123456789
VIDEO
OUT
A B VIN1 GND VIN2 VCC VIN3 VIN4
DRIVER
6dB
AMP
CONTROL
VIDEO SWITCH
4 INPUT 1 OUTPUT
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: TC74HCU04AFEL
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
4Y8
9
10
GND
IC603, 606: 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
2
1
B-1
C-1 C-2
1 D453
Point: B-1 Pin 13 of IC451 Point: C-1 Cathode of D453 and Pin 12 of IC451 Point: C-2 Cathode of D453 and Pin 12 of IC451
POWER ON
(Connect the power cable)
POWER ON
(Connect the power cable)
POWER OFF
(Disconnect the power cable)
2 IC451
1 D453
2 IC451
5.0
0
0
0
0
0
0
0
~
~
~
~
~
~
~
~
~
~
~~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~~
0
0
-0.2
0.1 10.3
1.1 1.3 10.3
0
4.8
4.8
4.8
6,2
0.1
0
0.8
0.1
0
3.9 3.9
11.3
3.9
0
3.9
0
4.8 5.6
11.3
4.9
5.5
11.3
6.6
7.3
6.1
0
6.6
0
5.65.6
3.9 3.9
11.3
3.9
0
3.9
0
4.8 6.1
3.9 3.9
11.3
3.9
0
3.9
0
4.8 6.0
11.6
5.4
6.0
6.5
0
7.1
0
6.16.0
11.6
5.3
6.0
6.5
0
7.0
0
6.06.0
5.0
5.0 0.5 0.5 0.1
0
-4.9
0
-0.6
0
5.0
-0.6
00
0 1.1 1.1
0.6
0.6
0
0.2
-0.6
0
5.0
0.4
0.2
5.0
0.2
0.9
5.0
0.5 0
0
0
0
0
0
5.0
0
-4.9
-0.6
-0.2
-0.2
5.0
0
0
0
5.0
4.5 4.5 0
0
-4.9
0
0
00
0
0
0.3
0
0
00
0
5.0
0
00
0
5.0 4.5
0
0
0
2.2 2.9
2.7 2.7 2.6
5.0
0
0.5
0.2 0.2
0.5
-4.9
0
5.0
1.3
1.7
-0.6
-0.6
0.6
4.3
4.3
5.0
0.9
0.9
-0.5
-0.5 0
0
0
0
5.6
5.0 11.9
5.6
4.8
-11.9
4.8
4.8
-11.9
4.8
4.8
-11.9
4.8
4.8
4.7
4.1
10.1 5.5
0
5.5
5.5
5.0
4.8
4.8 4.8
0.1
0.1
0
0
4.8
4.8
0
2.1
0.4
0
4.8
0
4.8
4.8
4.7
4.7
0.2
0.2
0
4.7
2.1
0.4
4.8
1.0
4.8
4.7
0
0.5
4.8
4.8
4.8
4.7 4.8 4.3 4.8 0.6
0
4.8
0 0
0
5.0
4.8
2.3
0
2.3 4.8 4.8
5.0 5.0
0
4.8
4.8
4.8 4.8
4.8
0 0
0
5.0 4.8
0
0
0
4.8 0 4.9 5.0 4.9 4.8 4.8 4.7
4.8
0 4.8 4.9 0 0 0 4.8 0
4.8
0
0 0
0
4.8 0 0
0
0
0
0
4.8
0
4.8
4.8
0
0
4.8
4.8
0
4.7
4.8
4.8
0
0
0
0
AC69.0
AC6.3
to CONVERSION
Page 91
C1
to FUNCTION
Page 83 D1
to DSP
Page 81
J1
to OPERATION (1)
Page 85 D7
to CONVERSION
Page 91
D8
to XM
Page 85
J3
to MAIN (1)
Page 86 E1
to MAIN (2)
to TUNER
Page 86 G8
to MAIN (2)
Page 86
F8
to POWER CABLE to POWER TRANSFORMER
to SUBTR (10)
F9
to SUBTR (3)
E9
to SUBTR (9)
C4
to SUBTR (2)
I3
to SUBTR (3)
D5
to SUBTR (6)
C4
to SUBTR (2)
J3
to SUBTR (7)
E5
to FUNCTION
Page 83
D8
SUBTR (1)
SUBTR (7)
SUBTR (3)
SUBTR (9)
SUBTR (6)
SUBTR (2)
SUBTR (10)
MICRO COMPUTER
INPUT
SELECTOR
Y/C MIX
SELECTOR
SELECTOR
INPUT
SELECTOR
220K