Yamaha RX-V740, Руководство по обслуживанию

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RX-V740/RX-V740RDS/DSP-AX740
RX-V640/RX-V640RDS/HTR-5660/DSP-AX640/DSP-AX640SE
A
1
2
3
4
5
6
7
8
9
B C D E F G H I J K L
82
SCHEMATIC DIAGRAM (FUNCTION 1/2) RX-V740/RX-V740RDS/DSP-AX740
★
All voltages are measured with a 10M
Ω
/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.
ELECTRIC
VOLUME
MUTE
MUTE
MUTE
MUTE
SHIFT
REGISTER
INPUT/
REC OUT
SELECTOR
Page 81
to DSP
F1
Page 83
to FUNCTION (4)
E4 Page 83
to FUNCTION (4)
D4
Page 88
to OPERATION (6)
A6
P
age 92
to PO
WER (2)
A5
Page 88
to OPERATION (4)
C3
F-SW1
F-SW1: INPUT FUNCTION 1
F-SW2: INPUT FUNCTION 2
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
IC301: BD3841FS
Function Switch
DGND
F-SW2
CL DA VEE BIAS VCC RECA1 RECA2 RECB1 RECB2 RECC1 RECC2 OUT1 OUT2 INI1 INI2
INA1 INA2 INB1 INB2 INC1 INC2 IND1 IND2 INE1 INE2 INF1 INF2
ING1 ING2
INH1 INH2
LOGIC
+ – + – + – + –
IC304, 305, 319, 320: TC74HC4053AF
Analog Multiplexer/Demultiplexer
16
VDD
6
INHIBIT
11
15
14
9
A
C
B
8 VSS
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
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
"ON" CHANNNEL (S)
0X, 0Y, 0Z
1X, 0Y, 0Z
0X, 1Y, 0Z
1X, 1Y, 0Z
0X, 0Y, 1Z
1X, 0Y, 1Z
0X, 1Y, 1Z
1X, 1Y, 1Z
NONE
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
IC311, 314, 316~318:
µ
PC4570G2
IC312, 313, 315: NJM2068MD
Dual OP-Amp.
– +
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4 5
+IN
1
–IN
2
+IN
2
– +
6
7
8
IC302, 303: TC74HC4052AF
Analog Multiplexer/Demultiplexer
16
VCC
6
INH
10
A
9
B
8
GND
7
VEE
12
0X
14 1X
15
2X
11
3X
1
0Y
5
1Y
2
2Y
4
3Y
LEVEL
CONVERTER
BINARY TO 1-OF-4
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
SW
SW
13
X-COM
3
Y-COM
INHIBIT
0
0
0
0
1
B
0
0
1
1
X
A
0
1
0
1
X
0x, 0y
1x, 1y
2x, 2y
3x, 3y
NONE
12 LIN2
9 LOUT
8
VREF
VREF
VREF
256
256
Reset
Vref
Generator
&
Reset
pulse
Generator
2 SDATAO
20
SDATAI
19
CSN
1 SCLK
16
TE
18
ZCEN
S/P
Register
Control
Register
L
Zero Cross
Detection
IC306~309: YAC520-EE2
Stereo Digital Volume Controller
11 LIN1
4 DVSS
3 DVDD
13
AVSS
6
AVDD
17 ICN
+
–
R
14
RIN2
7
ROUT
15
RIN1
+
–
16
IC310: TC74HC164AF
8-Bit Shift Register
1 SERIAL INPUT A
8 CK
2 SERIAL INPUT B
3 QA
9
CLR
D
R
Q
CK
Q
4 QB
D
R
Q
CK
Q
5
QC
D
R
Q
CK
Q
6 QD
D
R
Q
CK
Q
10 QE
D
R
Q
CK
Q
11
QF
D
R
Q
CK
Q
12 QG
D
R
Q
CK
Q
13
QH
D
R
Q
CK
Q
x: NOT USED
O: USED / APPLICABLE
1
8
3
2
7
4
6
5
1
8 3
2
7
4
6
5
1
8
3
2
7
4
6
5
1
8 3
2
7
4
6
5
8
1
3
2
8
1
3
2
4
7
6
5
4
7
6
5
8
7
5
6
4
1
2
3
7
1
8
4
6
5
3
2
CENTER
INPUT L
INPUT L
REAR L
MAIN L
11.5
0
0
0
-11.5
0
0
0
0
0
0
0
5.6
0
-5.6
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
5.6
0
0
-5.6
5.6
-5.6
0
5.6
0
0
5.6
-5.6
0
5.6
5.6
0
5.6
5.6 5.6
-5.6
0
5.6
0
-5.6
0
5.6
5.6
0
11.8
0
0
0
-12.0
0
0
0
0 0
0
0
0
0
11.8
0
0
0
-12.0
0
0
0
0 0
0
0
0
0
11.8
0
0
0
-12.0
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
0
0
0
0
0
0
0
0
2.6
2.6
5.1
0
0
2.4
0
4.9
2.6
2.6
2.6
2.5
2.6
0
4.9
0
0
4.2
0
0
2.6
2.6
5.1
0
0
2.4
0
4.9
2.6
2.5
2.2
2.5
2.6
0
4.9
0
0
4.7
0
0
2.6
2.6
5.1
0
0
2.4
0
4.9
2.6
2.6
2.6
2.6
2.6
0
4.9
0
0
4.9
0
0
2.6
2.6
5.1
0
0
2.4
0
4.9
11.9
5.7
5.1
5.1
5.7
5.7
0
2.6
2.6
2.6
2.6
2.6
0
4.9
0
0
4.9
0
0
11.8
-12.0
0
0
0
0
0
0
0 0
0
0 0
0
0
0
0
0
0
0
11.8
0
0
0
11.8
0
0
0
-12.0
0
0
0
-12.0
0
0
0
11.8
0
0
0
-12.0
0
0
0
0
0
0
0
0
5.6 0
5.6 5.6
0 0
-5.6
5.6 0
5.6 5.6
0 0
-5.6
5.6
0
0
-5.6
0
0
0 5.6
5.6 5.6 0 5.6 5.6 0
5.6 5.6 5.6
5.6
0
-11.9
0
0
-11.9
-11.9
0
0
0
-11.9
0
0
-11.9
0
0
-11.9
0
0
-11.9
0
0
0
-11.9
0