Yamaha RX-V730 Service Manual page 40

A B
SCHEMATIC DIAGRAM (FUNCTION 1/2)
1
RX-V730/RX-V730RDS: Page 68
RX-V630/RX-V630RDS/HTR-5560/HTR-5560RDS/DSP-AX630/DSP-AX630SE: Page 69
DSP-AX630SE only
2
MAIN L
3
0 0
0
0 0
0
0 0
0 0 0
0
INPUT
SELECTOR
4
12.1
0
0
5
0
0
-11.9
6
to FUNCTION (4)
RX-V730/RX-V730RDS: Page 68
RX-V630/RX-V630RDS/HTR-5560/
7
HTR-5560RDS/DSP-AX630/DSP-AX630SE: Page 69
8
9
C D E
to FUNCTION (6)
D8 Page 71 F1
E8 to DSP
REAR L
12.0
0
0 0
0
0
0
0
0
0 0 0
0
-11.7
REAR CENTER
0
0
0
CENTER
12.0
0 0 0
0
0
0
0
0
0 0 0
0
-11.7
L
0 0
0
0 0
0 0
0
0 0
0
0 0
0
0 12.0
0
0
0
0
0
0 0 0
0
-11.7
0
0
0 0
0 0
12.1
to FUNCTION (4)
E1 RX-V730/RX-V730RDS: Page 68 F1
RX-V630/RX-V630RDS/HTR-5560/
E1 G1
HTR-5560RDS/DSP-AX630: Page 69
x: NOT USED
O: USED / APPLICABLE
: except
DSP-AX630SE
F G
# All voltages are measured with a 10MΩ/V DC electric 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.
0
2.6
0 12.0
2.6 2.6
0 2.6
0
0
2.6 2.6
2.6 5.1
0 0
0
4.9 0
0 5.1 0
0
4.9 0 -11.7
0 0
12.0
2.6 0
0
2.6 0
2.6
0
0 2.6
-11.7
2.6 2.6
5.1
2.6
0 0
4.9 0
0 5.1
0
4.9
0 0
12.0
0
0
0
2.6
0
2.6 0
2.6
0 2.6 0 0
2.6 2.6
-11.7
2.6 5.1
0 0
4.9 0
0 5.1
4.9 0
0 0
0
0
0
0
ELECTRIC
0 0
VOLUME
0
0
0 0
0
0 0
2.6
0
2.6 2.6
0 2.6
0
2.6
2.6 0
5.1
2.6
0 0 0 0 12.0
0
4.9 0
0 5.1 0
4.9 0 0
0 0
0
0
5.1 12.0
0
0
-11.7
5.7
0
5.7
0
0
0.1 4.9
0.1 4.9
0.1 4.9
0 4.9
0 4.9
MICRO COMPUTER
4.9
4.9
4.9 4.8
0 4.9
4.9 0
4.9
0
4.9 0
4.9 4.9
1.0
1.9 4.9
0.6 0
0 0
M 3 0 6 2 4 F G A - 3 9 2 F P
4.6 0
2
4.9 0
1.9
4.6 0
4.9
0
0
0
RX-V730RDS: not used
DSP-AX630SE: 33K
other: 10K
H I J
HTR-5560/HTR-5560RDS/DSP-AX630/DSP-AX630SE
Page 70 A6
to OPE (5)
0
-11.7
0
0
-11.7
0
0
-11.7
0
MUTE
0
Page 72 A4
-11.7
to MAIN (3)
0
0
-11.7
0
0
-11.7
0
5.0
4.9
-11.7
Page 70 G8
5.0
to OPE (1)
4.9
-11.7
5.0
4.9
-11.7
MUTE
CONTROL
Page 70 F8
to OPE (1)
5.7 12.8
1 0.7
0.7
Page 70 C3
12.8
to OPE (4)
12.8 A
12.1
B
4.7
0 7.3
6.8
0
0
0
0
5.0 5.0 5.7 0
0
0.5
0
4.9 0
0
Point 1 emitter of Q443
and collector of Q447
A Q443 E
B Q447 C
POWER ON
(Connect the power cord)
K L
RX-V730/RX-V730RDS/RX-V630/RX-V630RDS
IC302: LC78213
Analog Function Switch
L1 1 30 R1
L2 2 29 R2
LCOM1 3 28 RCOM1
L3 4 27 R3
L4 5 26 R4
LCOM2 6 25 RCOM2
L5 7 24 R5
8 23 R6
L6
9 22
LCOM3 RCOM3
10 21
L7 R7
LCOM4 11 20 RCOM4
V 19 LEVEL SHIFTER
DD
16
V SS
ZZ 14 D1
LATCH
V EE 12
15 CL
RES 18 ZZ
SHIFT REGISTER
17 13
S ZZ CE
IC303: LC78211
Analog Function Switch
1 30
L1 R1
L2 2 29
R2
L3 3 28 R3
L4 4 27 R4
LCOM1 5 26 RCOM1
L5 6 25 R5
L6 7 24 R6
LCOM2 8 23 RCOM2
L7 9 22 R7
L8 10 21 R8
11 20 RCOM3
LCOM3
V 19 LEVEL SHIFTER
DD
V SS 16
14
LATCH ZZ D1
12
V EE
15 CL
18 ZZ
RES
SHIFT REGISTER
S 17 ZZ 13 CE
IC304~307: YAC520-EE2
Stereo Digital Volume Controller
VREF
+
–
LIN2 12
LIN1 11 9 LOUT
Vref
Generator
256 &
VREF
8
Reset
pulse
Generator
Reset
DVSS 4 17 ICN
L
DVDD 3 16 TE
18 ZCEN
Zero Cross Control
2 SDATAO
AVSS 13 Detection Register
20 SDATAI
AVDD 6 R S/P
16
Register CSN
19
1 SCLK
256
RIN1 15 7 ROUT
RIN2 14
VREF
IC308~309: TC74HC4053AF
Analog Multiplexer/Demultiplexer
INHIBIT VDD
6 16
A
11
LEVEL BINARY TO 1-OF-8
B 10
CONVERTER DECODER WITH INHIBIT
C 9
VSS 8
VEE
7
0X
12 SW
14 X-COM
1X 13 SW
0Y
2 SW
15 Y-COM
1Y 1 SW
0Z
5 SW
4 Z-COM
1Z 3 SW
INPUT STATES
"ON" CHANNNEL (S)
INHIBIT C B A
0 0 0 0 0X, 0Y, 0Z
0 0 0 1 1X, 0Y, 0Z
IC311~318: µPC4570G2
0 0 1 0 0X, 1Y, 0Z
Dual OP-Amp
0 0 1 1 1X, 1Y, 0Z
0 1 0 0 0X, 0Y, 1Z
OUT 1 +V
1 8 CC 0 1 0 1 1X, 0Y, 1Z
0 1 1 0 0X, 1Y, 1Z
–IN 1 2 7 OUT 2
+ – + – 0 1 1 1 1X, 1Y, 1Z
+IN 1 3 6 –IN 2 1 X X X NONE
–V CC 4 5 +IN 2
IC442: NJM78L05A-T3
Voltage Regulator
INPUT
OUTPUT
GND
Point 2 Pin 13 of IC441
POWER OFF
(Disconnect the power cord)
67