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
90
SCHEMATIC DIAGRAM (VIDEO)
★
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.
IC851, 852: 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
IC853: NJM2581M
Video Amp
13
VOUT1
11
VOUT2
9
VOUT3
8
GND
10
V+3
14
V+1
12
V+2
2
NEE1
4
VEE2
6
VEE3
7
PowerSave
5
VIN3
1
VIN1
3
VIN2
75
Ω
Driver
6dB
AMP
BIAS
75
Ω
Driver
6dB
AMP
BIAS
75
Ω
Driver
6dB
AMP
BIAS
REF
VIDEO AMP
RX-640/RX-V640RDS/HTR-5660/DSP-AX640: Page 85
A4
RX-740/RX-V740RDS/DSP-AX740: Page 83
A4
to FUNCTION (4)
4.9
4.9
4.9
4.9
4.9
0.1
0
0.1
4.9
4.4
4.4
4.4
0
0
0
0
0
4.4
4.4
0
0
0
0
0
4.4
4.4
0
0
0
0
0
4.9
4.9
0
-4.8
0
-4.8
0
0
0
0
0
0
0
0
0
0
-4.8
0.7
0
0.1
0
4.9
0
4.9
0
0
4.9
4.9
0.1
0
0