Yamaha RX-V757, Service Manual

Page: 40 / 48

A B C D E F G H
1
2
3
4
5
6
I J K L M N
7
8
9
10
87
RX-V757/DSP-AX757/DSP-AX757SE
RX-V657/HTR-5860
■
SCHEMATIC DIAGRAM (FUNCTION)
* All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
* Components having special characteristics are marked Z 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。
* Z 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。
VOLUME
VOLUME
VIDEO
SELECTOR
REGULATOR
ANALOG IN
(DVD)
ANALOG IN
SW
L
C
SBL
SL
SBL
SL
C
L
SW
L
L
PL
C
0
0
0.7
0
0
0
-5.0
0.7
0
3.6
0
0
0
0
-5.0
4.9
4.9 0
4.8
0
0.1 0.1 3.6 3.6
0
0
0.7 0.7 0.1 4.9
0 0
0.1
0
0
-5.0
4.9
0
0
0
3.6
0
0
-5.0
0
4.9
0
0
0
0
4.9
0
0
12.0
12.0
-12.1
-12.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
12.0
-12.1
0
0 0
0
0
0
0
0
0
0
0
0
12.0
-12.1
0
5.1
5.7
5.7
0
9.9
-6.1
-6.7
0
-6.7
-10.6
6.1
6.7
6.7
0
9.9
0
0
0
0
0
0
0
-12.0
0
0
-12.0
0
0
-12.0 0
0
-12.0 0
0
-12.0
0
0
0.7 0
0
0.7
0
0
0
0
0
0
0
0
0
0
0
0
-12.1
0
0
0 0
0 0
0
0
12.0
0
-12.0
0
0
-12.0
0
0
0
0
9.4
-9.5
0
0
0
0.7
0
0
0.7
10.1 9.4
-10.2 -9.5
0
0
0
0
0
12.0
-12.1
0
0
0
0
0
0
12.0
-12.1
0
0
0
0
0
0
12.0
-12.1
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
0
0
0
0
0
0
0
0
0
0
0
0
-12.1
0 0
12.0
0
0
-12.1
0 0
12.0
0
0
-12.1
0 0
12.0
0
0
0
2.5
2.5
0
2.5
2.5
0
4.9
4.9
0
4.9
0
5.1
2.5
2.5
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
-6.1
0
0 0 0 0 4.9 6.1 6.1 -6.1
-6.1
6.1
0
0
0
0
0
0
0
6.1
-6.1
0
0
0
0
0
C3326
C3326
C3326
C3326
C3326
C3326
C3326
C3326
C3326
T
O
SUBTRANS (6) CB441
RX-V757/DSP-AX757/DSP-AX757SE/RX-V657 P
age 92 F-1
T
O
SUBTRANS (6) CB441
HTR-5860 P
age 93 F-2
T
O
SUBTRANS (6) CB443
RX-V757/DSP-AX757/DSP-AX757SE/RX-V657 P
age 92 F-1
T
O
SUBTRANS (6) CB443
HTR-5860 P
age 93 F-2
TO SUBTRANS (2) CB460 RX-V757/DSP-AX757/DSP-AX757SE/RX-V657 Page 92 J-3
TO SUBTRANS (2) CB460 HTR-5860 Page 93 K-3
TO SUBTRANS (2) CB459 RX-V757/DSP-AX757/DSP-AX757SE/RX-V657 Page 92 K-3
TO SUBTRANS (2) CB459 HTR-5860 Page 93 L-3
TO DSP CB2 Page 86 D-1
RX-V757/DSP-AX757/DSP-AX757SE/RX-V657 Page 88 K-4
HTR-5860 Page 89 K-4
TO OPERATION (4) W882
TO OPERATION (5) W882
TO DSP CB11
Page 86 C-1
TO POWER (1) W351 Page 91 A-1
TO POWER (1) CB351 Page 91 A-2
TO POWER (1) CB361 Page 91 A-3
RX-V757/DSP-AX757/DSP-AX757SE/RX-V657 P
age 88 G-8
HTR-5860 P
age 89 G-8
T
O
OPERA
TION (1)
W804
T
O
OPERA
TION (1)
W803
TO SUBTRANS (7) CB448 RX-V757/DSP-AX757/DSP-AX757SE/RX-V657 Page 92 F-3
TO SUBTRANS (7) CB448 HTR-5860 Page 93 E-3
TO SUBTRANS (2) CB461 RX-V757/DSP-AX757/DSP-AX757SE/RX-V657 Page 92 I-3
TO SUBTRANS (2) CB461 HTR-5860 Page 93 J-3
IC306–313 : NJM2068MD-TE2
Dual OP-Amp
– +
OUT1
–IN1
–VCC
+VCC
OUT2
1
2
3
4 5
+IN1 –IN2
+IN2
– +
6
7
8
IC314 : NJM4556AL
Dual OP-Amp
–
IN
1
2
+IN
1
3
–
V
CC
4
+IN
2
5
–
IN
2
6
OUT
2
7
+V
CC
8
OUT
1
1
–
+
–
+
IC304 : NJU7313AM
Analog Function Switch
13 NC 18 NC
2
3
4
5
6
7
8
9
10
11
12
14
30
1
29
28
27
26
25
24
23
22
21
20
19
17
15
CONTROL
LEVEL
SHIFTER
LA
TCH
LEVEL
SHIFTER
LA
TCH
L1
L2
L3
L4
L-COM1
L5
L6
L-COM2
L7
L8
L-COM3
ST
VDD
VEE
R1
R2
R3
R4
R-COM1
R5
R6
R-COM2
R7
R8
R-COM3
DATA
CK
VSS
16
IC305 : NJU7311AM
Analog Function Switch
2
3
4
5
6
7
8
9
10
11
12
14
30
1
29
28
27
25
24
23
22
21
20
19
17
15
CONTROL
LEVEL
SHIFTER
LA
TCH
LEVEL
SHIFTER
LA
TCH
L1
L2
L3
L4
L-COM1
L5
L6
L-COM2
L7
L-COM3
L-COM4
ST
VDD
VEE
13 NC
R1
R2
R3
R4
R-COM1
R5
R6
R-COM2
R7
R-COM3
R-COM4
DATA
CK
VSS
18 NC
16
26
IC303 : NJU7312AM
Analog Function Switch
2
3
4
5
6
7
8
9
10
11
12
14
30
1
29
28
27
25
24
23
22
21
20
19
17
15
CONTROL
LEVEL
SHIFTER
LA
TCH
LEVEL
SHIFTER
LA
TCH
L1
L2
L3
L4
L-COM1
L5
L6
L-COM2
L7
L8
L-COM3
ST
VDD
VEE
13 NC
R1
R2
R3
R4
R-COM1
R5
R6
R-COM2
R7
R8
R-COM3
DATA
CK
VSS
18 NC
16
26
IC302 : YAC520-EE2
High Grade Stereophonic Digital
Volume
12
9
8
17
16
18
2
20
19
1
7
11
4
3
5
6
15
14
LIN2
LOUT
VREF
ICN
TE
ZCEN
SDATAO
SDATAI
CSN
SCLK
ROUT
LIN1
DVSS
DVDD
AVSS
AVDD
RIN1
RIN2
VREF
GENERATOR
&
RESET
PULSE
GENERATOR
S/P
REGISTER
ZERO
CROSS
DETECTION
CONTROL
REGISTER
L
R
VREF
+
–
VREF
+
–
256
256
16
IC301 : YAC523-EVR2
Digital Volume
3 IN1
34 OUT1
OUT2
V
olB:
50k
ohm
VolA: 30kohm
45 TE1
44 TE2
39 ZCEN2
38 ZCEN1
2 AVDD
46 DGND
47 REF
1 AVSS
43
SDATAO (OD)
41 SDATAI
42 SCLK
40
20
19
18
CSN
Control
Register
25 REF1B
24 REF1A
0~95dB
100
0~+31.5dB
+
–
OPA
Zero Crossing
Detector
4 IN2
33
V
olB:
50k
ohm
VolA: 30kohm
23 REF2B
22 REF2A
0~95dB
100
0~+31.5dB
+
–
OPA
Zero Crossing
Detector
Zero Crossing
Detector
5 IN3
32 OUT3
OUT4
V
olB:
50k
ohm
VolA: 30kohm
21
REF3B
20 REF3A
0~95dB
100
0~+31.5dB
+
–
OPA
Zero Crossing
Detector
Zero Crossing
Detector
6 IN4
31
V
olB:
50k
ohm
VolA: 30kohm
19 REF4B
18 REF4A
0~95dB
100
0~+31.5dB
CH1, 2, 3, 4 Control
56
+
–
OPA
Zero Crossing
Detector
Zero Crossing
Detector
S/P
Register
OUT5
14 REF6B
V
olB:
50k
ohm
VolA: 30kohm
8 IN6
13 REF7A
0~95dB
100
0~+31.5dB
+
–
OPA
12 REF7B
OUT6
OUT7
V
olB:
50k
ohm
VolA: 30kohm
9 IN7
15 REF6A
0~95dB
100
0~+31.5dB
+
–
OPA
16 REF5B
V olB:
50k
ohm
VolA: 30kohm
7 IN5
17
REF5A
0~95dB
100
0~+31.5dB
CH5, 6, 7 Control
+
–
OPA
IC901 : MM74HC4051SJX
Analog Multiplexers/Demultiplexers
LEVEL
CONVERTER
BINARY TO 1-OF-8
DECODER WITH INHIBIT
11
10
9
8
7
6 16
13
SW
SW
SW
SW
SW
SW
SW
SW
14
15
12
1
5
2
4
3
INHIBIT VDD
X
A
B
C
VSS
VEE
X0
X1
X2
X3
X4
X5
X6
X7
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
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
“ON” CHANNEL (S)
0
1
2
3
4
5
6
7
NONE
6dB DR
6dB DR
6dB DR
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VIN1+
NFB1
MUTE1
VIN2+
NFB2
—VCC1
VIN3+
NFB3
+VCC
VOUT1
GND
VOUT2
MUTE2
VOUT3
MUTE3
—VCC2
IC902 : LA7108M
Video Amp