Yamaha RX-V757 Service Manual page 40

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