Yamaha DSPAX-640-SE Schematic
A
BCDEFGH I JKL
RX-V740/RX-V740RDS/DSP-AX740
RX-V640/RX-V640RDS/HTR-5660/DSP-AX640/DSP-AX640SE
SCHEMATIC DIAGRAM (FUNCTION 1/2)
DSP-AX640SE
1
2
Page 87
D4
to FUNCTION (4)
E4Page 87
to FUNCTION (4)
MAIN L
0
3
0
0
0
0
0
0
0
000
0
11.8
8
0
3
0
1
2
0
ELECTRIC
INPUT L
0
0
0
INPUT L
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
INPUT/
0
0
0
-5.6
0
5.6
0
0
0
0
0
0
0
0
0
0
0
0
0
REC OUT
0
0
CENTER
0
0
0
0
0
000
0
0
0
0
0
0
0
0
0
SELECTOR
0
6
0
0
0
0
0
0
0
0
0
11.8
0
8
3
0
2
0
6
00
5
4
-12.0
7
5
0
4
-12.0
1
0
7
0
REAR L
0
0
0
6
0
5.6
0
0
-5.6
0
11.8
0
3
8
0
0
00
1
2
0
6
7
5
0
4
-12.0
VOLUME
2.6
2.6
0
2.5
2.6
0
4.9
0
4.2
0
2.5
2.2
0
2.5
2.6
0
4.9
0
4.7
0
2.6
2.6
0
2.6
2.6
0
4.9
0
4.9
0
2.6
2.6
0
2.6
2.6
0
4.9
0
4.9
0
0
2.6
2.6
2.6
5.1
0
0
2.4
4.9
0
0
2.6
2.6
2.6
5.1
0
0
2.4
4.9
0
0
2.6
2.6
2.6
5.1
0
0
2.4
4.9
0
0
2.6
2.6
2.6
5.1
0
0
2.4
4.9
0
11.9
5.1
5.1
5.7
5.7
5.7
0
Page 81
to DSP
F1
A6
Page 89
to OPERATION (6)
Page 89
C3
to OPERATION (4)
MUTE
0
0
11.8
0
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
5
3
2
11.8
11.8
4
-12.0
11.8
4
-12.0
7
0
1
0
4
-12.0
00
0
00
0
0
0
0
0
0
0
1
0
6
0
0
1
0
7
0
7
0
1
0
7
5
0
4
-12.0
5.6 5.6
5.6 0
00
-5.6
0
0
0
8
3
2
8
3
2
6
5
8
5
6
2
3
-11.9
-11.9
-11.9
-11.9
-11.9
-11.9
-11.9
05.6
5.65.65.6
5.65.605.65.60
5.6 0
0
0
0
0
MUTE
0
0
0
0
MUTE
0
0
0
0
0
0
MUTE
5.6
0
0
5.6 5.6
00
-5.6
0
-11.9
0
SHIFT
REGISTER
5.6
0
0
-5.6
A5
Page 92
IC312, 313, 315: NJM2068MD
IC314, 316~318: µPC4570G2
Dual OP-Amp.
OUT
–IN
to POWER (2)
+IN
–V
IC310: TC74HC164AF
8-Bit Shift Register
SERIAL INPUT A
SERIAL INPUT B
1
1
2
1
–+
3
1
4
CC
8
CK
1
2
9
CLR
+V
CC
8
OUT
2
7
– +
–IN
2
6
5
+IN
2
D
R
QCKQ
D
R
QCKQ
D
R
QCKQ
D
R
QCKQ
D
R
QCKQ
D
R
QCKQ
D
R
QCKQ
D
R
QCKQ
3
QA
4
QB
5
QC
6
QD
10
QE
11
QF
12
QG
13
QH
5.65.6
5.6
0
0
-5.6
BINARY TO 1-OF-4
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
SW
SW
13
3
INHIBIT
X-COM
Y-COM
IC306~309: YAC520-EE2
Stereo Digital Volume Controller
VREF
+
256
Reset
Control
Register
256
VREF
–
9
LOUT
Vref
Generator
&
8
17
16
18
2
20
19
1
7
VREF
ICN
TE
ZCEN
SDATAO
SDATAI
CSN
SCLK
ROUT
Reset
pulse
Generator
S/P
16
Register
–
+
IC304, 305, 319, 320: TC74HC4053AF
Analog Multiplexer/Demultiplexer
VDD
INHIBIT
16
B
A
0
0
0
0
1
0x, 0y
0
0
1x, 1y
0
1
2x, 2y
1
0
3x, 3y
1
1
NONE
X
X
VSS
VEE
6
11
A
10
B
9
C
8
7
12
0X
13
1X
2
0Y
1
1Y
5
0Z
3
1Z
LEVEL
CONVERTER
BINARY TO 1-OF-8
DECODER WITH INHIBIT
SW
SW
SW
SW
14
X-COM
15
Y-COM
SW
4
SW
Z-COM
INPUT STATES
INHIBIT
C
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
X
"ON" CHANNNEL (S)
B
A
0
0
0X, 0Y, 0Z
0
1
1X, 0Y, 0Z
1
0
0X, 1Y, 0Z
1
1
1X, 1Y, 0Z
0
0
0X, 0Y, 1Z
0
1
1X, 0Y, 1Z
1
0
0X, 1Y, 1Z
1
1
1X, 1Y, 1Z
X
X
NONE
LIN2
LIN1
DVSS
DVDD
AVSS
AVDD
RIN1
RIN2
12
11
4
3
13
6
15
14
Zero Cross
Detection
L
R
VCC
16
LEVEL
CONVERTER
5.6
0
0
RECC1
5.6
-5.6
RECC2
5.6
0
OUT1
OUT2
INI1
5.6
5.6
0
0
-5.6
INI2
RECB1
5.6
RECB2
7
IC301: BD3841FS
Function Switch
DGND
CL
DA
VEE
BIAS
VCC
RECA1
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
RECA2
LOGIC
8
★ 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.
F-SW1: INPUT FUNCTION 1
F-SW2: INPUT FUNCTION 2
F-SW2
F-SW1
+–+
–
+–+
–
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
INF1
INA1
INA2
INB1
INB2
INC1
INC2
IND1
86
9
IND2
INE1
INE2
INF2
ING1
ING2
INH1
INH2
5.6
5.6
0
0
-5.6
IC302, 303: TC74HC4052AF
Analog Multiplexer/Demultiplexer
INH
6
10
A
9
B
8
GND
7
VEE
12
0X
14
1X
15
2X
11
3X
1
0Y
5
1Y
2
2Y
4
3Y
ABCDEFGH I JKL
SCHEMATIC DIAGRAM (FUNCTION 2/2)
DSP-AX640SE
RX-V640/RX-V640RDS/HTR-5660/DSP-AX640/DSP-AX640SE
1
RX-V740/RX-V740RDS/DSP-AX740
INPUT
SELECTOR
5.0
4.90
000
0
0-4.9
00
4.9
-4.9
0
000
4.9
2
4.9
0
-4.9
-4.9
0
0
13
12
15
0
3
3
5
11
4.9
10
4.9
0
0
6
8
0
0
1
2
0
4.9
0
0
0
Y SELECTOR
0
0
0
Cb SELECTOR
0
0
0
-4.9
VEE3
0
VEE2
-4.9
0
-4.9
VEE1
0
Cr SELECTOR
Page 86
E2 Page 86
to FUNCTION (1)
F2
to FUNCTION (1)
0
0.6
0
4.9
0
-4.9
4.9
0
GND
PS
VIN3
VIN2
VIN1
VOUT3
V+3
VOUT2
NJM2581M
V+2
VOUT1
V+1
0
5.0
0
5.0
0
5.0
4.9
4.9
0
4.9
IC602: NJM78L05A-T3
Voltage Regulator
IC701, 702, 801: TC74HC4051AFEL
Analog Multiplexer/Demultiplexer
11
A
10
B
C
GND
VEE
13
0
14
1
15
2
12
3
4
5
6
7
9
8
7
1
5
2
4
INHIBIT
6
VCC
16
LEVEL
CONVERTER
BINARY TO 1-OF -8
DECODER WITH INHIBIT
SW
SW
SW
SW
INPUT
OUTPUT
GND
3
COM
SW
SW
SW
SW
INPUT STATES
Note: IC821 LA7104M for P.W.B. A to D version.
NJM2581M for P.W.B. E or later version.
INHIBIT
4
4.9
4.9
-11.9
IC703: LA7109
75Ω Video Driver
VIN1+
1
2
4.9
-11.9
4.9
4.9
4.9
-11.9
C-INPUT
SELECTOR
4.9
0000000
5
0
0
0
-11.9
4.9
4.9
4.9
0
4.9
4.9
4.9
4.8
4.9
0
0
0
0
4.9
0.7
1.0
0
4.8
0
0
4.9
1.900
5
4.9 4.9
4.9
4.7
4.913.2
0.6
0.6
0
F6
6
to MAIN (2)
13.2
A
12.5
13.1
B
4.9
4.7
7.5
7.5
7.0
0
0
0
0
0
4.9
1.9
4.9
4.9
4.9
E1 Page 91
to MAIN (1)
Page 91
0
0
0
0
0
0.2
4.8
4.9
4.9
4.9
4.9
4.9
MICRO COMPUTER
4
0
0
4.5
4.9
0.3
0.9
4.9
4.7
4.8
4.9
2.402.3
4.904.9
4.904.9
4.9
4.9
0.9
0
4.9
4.900.9
4.9
4.5
0.1
4.9
4.9
00000
4.9
4.9
4.9
4.2
4.9
4.9
4.9
4.9
4.9
0
0.9
4.9
0
0
4.9
4.9
0.1
0
0
0.2
0
4.9
4.9
4.9
4.9
4.9
7
Page 89
G8 Page 81
to OPERATION (1)
E1
to DSP
00000
0
0
-4.9
4.9
0000000
00000
0
0
-4.9
Y-INPUT SELECTOR
4.9
4.9
0.9
0.2
-0.6
0.9
0
0
0
0
0
0
4.9
0
00
0
1.0
-4.8
1.0
0
7
0
0
1
1.0
-4.8
Point 4 Pin 13 of IC601 Point 5 Emitter of Q601 and collector of Q602
8
★ 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.
A
Q601 E
★ Schematic diagram is subject to change without notice.
B
Q602 C
POWER ON
(Connect the power cord)
POWER OFF
(Disconnect the power cord)
4.9
3
0
8
0
1
2
0
6
0
0
0
00
00
7
5
4
-4.8
VIDEO DRIVER
0
0
0
0
0
-4.8
0
-4.8
-4.8
0
0
0
0
0
-4.8
0
4.9
8
0
5
0
6
2
0.5
3
0.5
3
-4.8
-4.8
-4.8
-4.8
0
0
0
4.8
0
0
0
4.8
0
4.8
0.1
0
0.1
4.8
0
1.0
0
0
Y/C MIX
4.9
-0.6
1.0
1.7
4.9
0
4.4
-4.8
0
4.4
4.9
0.1
0
4.9
0
00 0
0
0
2.6
2.62.6
2.6
4.9
4.9
4.4
0
0
4.9
S-SIGNAL DETECTOR
4.9
4.2
0.9
4.2
-0.1
0
-1.8
0
4.9
4.9
0
1.0
1.3
1.0
1.0
IC821: LA7104M
Video Amp
VIN1+
MUTE1
VIN2+
-VCC1
VIN3+
NFB1
NFB2
NFB3
1
2
3
4
5
6
7
8
16
+VCC
15
DR6dB
VOUT1
14
GND
13
VOUT2
DR6dB
12
DR CTL
11
VOUT3
10
DR6dB
MUTE2
9
-VCC2
0
-0.4
IC802: LA7108M
Video Amp
1
VIN1+
2
NFB1
3
MUTE1
4
VIN2+
5
NFB2
6
-VCC1
7
VIN3+
8
NFB3
4.2
-0.3
0
16
+VCC
15
DR6dB
DR6dB
DR6dB
VOUT1
14
GND
13
VOUT2
12
MUTE2
11
VOUT3
10
MUTE3
9
-VCC2
NFB1
3
MUTE1
4
VIN2+
5
NFB2
6
-VCC1
7
VIN3+
8
NFB3
9
N.C.
10
N.C.
11
11
VIN4+
12
NFB4
13
MUTE2
14
VIN5+
15
NFB5
16
-VCC2
17
VIN6+
18
NFB6
IC705, 706: TK15420M
Video Amp
1
OUT A
2
–IN A
+IN A
3
4
VEE
IC707, 709, 822: TC74HC4053AF
Analog Multiplexer/Demultiplexer
INHIBIT
11
A
10
B
9
C
8
VSS
7
VEE
12
0X
13
1X
2
0Y
1
1Y
5
0Z
3
1Z
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
IC708: TC74HCU04AF
Hex Inverters
1
1A
2
1Y
3
2A 6Y
4
2Y
5
3A
6
3Y
GND
7
9
0
0
0
0
0
0
0
0
1
–+
6
C
B
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
X
X
– +
VDD
16
LEVEL
CONVERTER
C
B
A
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
X
X
X
"ON" CHANNNEL
A
0
0
1
1
2
0
3
1
4
0
5
1
6
0
7
1
NONE
X
DR6dB
DR6dB
DR6dB
DR6dB
DR6dB
DR6dB
VCC
8
7
OUT B
–IN B
6
5
+IN B
DECODER WITH INHIBIT
SW
"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
VCC
14
6A
13
12
5A
11
5Y
10
4A
9
4Y8
+VCC1
36
35
VOUT1
34
GND
33
VOUT2
32
DR CTL2
31
VOUT3
30
MUTE4
29
-VCC4
28
N.C.
27
N.C.
26
26
+VCC2
25
VOUT4
24
GND
23
VOUT5
22
DR CTL1
21
VOUT6
20
MUTE3
19
-VCC3
BINARY TO 1-OF-8
SW
SW
SW
14
X-COM
15
SW
Y-COM
4
Z-COM
SW
87
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