Yamaha RX-V750 Service Manual page 80

A B C
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
SCHEMATIC DIAGRAM (FUNCTION 1/2)
1
RX-V750/DSP-AX750/DSP-AX750SE/RX-V650 Page 87 I-3
HTR-5760 Page 88 G-1
TO CONVERSION (2) CB831
2
ANALOG IN
(DVD)
3
4
5
6
0
0
0
0
0
0
7
0
0
0
0
0
0
8
9
IC303 : NJU7312AM
Analog Function Switch
L1 2 29 R1
L2 3 28 R2
L3 4 27 R3
L-COM1 5 26 R-COM1
L-COM1
L4 6 25 R4
L5 7 24 R5
L6 8 23 R6
L-COM2 9 22 R-COM2 L-COM2
10
L7 10 21 R7
11 20 R8
L8
L-COM3 12 19 R-COM3 L-COM3
ST 14 17 DATA
CONTROL
VDD 30 16 CK VDD
VEE 1 15 VSS VEE
13 18 NC
NC
80
D E F
RX-V750/DSP-AX750/DSP-AX750SE/RX-V650 RX-V750/DSP-AX750/DSP-AX750SE/RX-V650
Page 81 K-5 Page 81 L-5
HTR-5760 Page 82 K-5 HTR-5760 Page 82 L-5 Page 79
TO FUNCTION (2) CB509 TO FUNCTION (2) CB508 TO DSP CB2
ANALOG IN
11.7
L
0
0
0
0
0
0
–11.7
L
0
11.7
0
0 0 0
0
0
PL
0
0
0
0 0
0
0
–11.7
11.7
0 0 0
0
0 0
5.1 11.8
5.7
6.1
0
0
0 0 0
0
–11.7
SW
VOLUME
2.6
1.3
0
2.6
2.6
0
0
0 0
0
0
5.0
0
5.1
11.7
0 0
0
0 0
0
–11.7
0 0
L C
0
11.7
0 0
0
–6.1
0
6.1
0
0 0
0
0
0
0 0
0 0
0
–11.7 0
0
0
0 0
11.7 6.1
0
–6.1
0
0
0
SL SBL
0
0
0
0
0
0
–11.7
IC304 : NJU7313AM IC305 : NJU7311AM
Analog Function Switch Analog Function Switch
L1 2 29 R1 L1 2 29 R1
L2 3 28 R2 L2 3 28 R2
L3 4 27 R3 4 27
L-COM1 R-COM1
L4 5 26 R4 L3 5 26 R3
6 25 R-COM1 L4 6 25 R4
L5 7 24 R5 L-COM2 7 24 R-COM2
L6 8 23 R6 L5 8 23 R5
9 22 R-COM2 L6 9 22 R6
L7 10 21 R7 L-COM3 10 21 R-COM3
11 20 R8 L7 11 20
L8 R7
12 19 R-COM3 L-COM4 12 19 R-COM4
ST 14 17 DATA ST 14 17 DATA
CONTROL CONTROL
30 16 CK VDD 30 16 CK
1 15 VSS VEE 1 15 VSS
13 18 NC 13 18 NC
NC NC
G H
RX-V750/DSP-AX750/DSP-AX750SE/RX-V650
Page 83 J-3
HTR-5760 Page 84 J-3
I-1
TO OPERATION (4)
W882
9.9 9.2
9.2
0
0 0
0.7
0.7
0
0 0
–9.1
–9.8 –9.1
L
0 0
0
11.8
0
–11.6
11.8 0 0
6.7
–6.0
–11.7
0
0
–11.6
0 0
0 0
–11.7
0
2.6
2.6
5.1
0
0
5.1
0
5.1 11.8
C
0
0
0 0 0 0
0 0
5.0 0
SW
0
–11.7
0 0
–11.6
–11.6
0
0
VOLUME 0
0
0
0
0
0
0
0
0 –11.6
SL
0
–11.6
–11.6
SBL
0.7
0.7
IC306–313 : NJM2068MD-TE2 IC314 : NJM4556AL
Dual OP-Amp Dual OP-Amp
+ +
OUT 1 1 8 +V CC
– –
–IN 1 2 7 OUT 2
+ – + –
+IN 1 3 6 –IN 2
–V 4 5 +IN
CC 2 1 2 3 4 5 6 7 8
I J K
Page 86 A-1
TO POWER (1) CB358
Page 86 A-2
TO POWER (1) CB351
Page 86 A-3
TO POWER (1) CB361
RX-V750/DSP-AX750/DSP-AX750SE/RX-V650
Page 83 F-7
TO OPERATION (1) W803
HTR-5760
Page 84 F-7 TO OPERATION (1) W804
AX750 V750, V650
100/16 47/35 47/35 47/35
s101 C345, 347
UU13810 UU15747 UU15747 UU15747
47/50 47/50 47/50 47/50
s102 C381, 382
UR26747 VG29120 VG29120 VG29120
HTR-5760
47/35 47/35 47/35 47/35
s101 C345, 347
UU15747 UU15747 UU15747 UU15747
47/50 47/50 47/50 47/50
s102 C381, 382
VG29120 VG29120 VG29120 VG29120
IC301 : YAC523-VZ
Digital Volume
IN1 3
0~95dB
+ 100
OPA 34 OUT1
–
REF1B 25
0~+31.5dB
REF1A 24
VolA: 30kohm
IN2 4
0~95dB
+ 100
OPA 33 OUT2
–
REF2B 23
0~+31.5dB
REF2A 22
VolA: 30kohm DVSS
IN3 5
DVDD
0~95dB
+ 100
OPA 32 OUT3
– AVSS
REF3B AVDD
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 Register 43 SDATAO (OD)
47
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
OPA 19 OUT6
–
IN6 8
VolA: 30kohm
REF7A 13
0~+31.5dB
REF7B 12
100
+
0~95dB OPA 18 OUT7
–
IN7 9
L M N
47/35 47/35 100/16 47/35
UU15747 UU15747 UU13810 UU15747
47/50 47/50 100/50 47/50
VG29120 VG29120 VG29130 VG29120
IC302 : YAC520-EE2
High Grade Stereophonic Digital
Volume
VREF
+
–
LIN2 12
LOUT
LIN1 11 9
VREF
256
GENERATOR
& 8 VREF
RESET
PULSE
GENERATOR
4
17 ICN
3 L
ZERO 16 TE
CONTROL
CROSS 18 ZCEN
REGISTER
DETECTION
5 R 2 SDATAO
S/P 20 SDATAI
6 16
REGISTER
19 CSN
1 SCLK
256
RIN1 15 7 ROUT
RIN2
14
–
+
VREF
* 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.
Z
O