Yamaha AD824 Service Manual page 17

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HD74LV245AFPEL (IS024500)
Octal 3-State Bus Transceiver
MAIN:
IC901,904-906,908,909,932-934
AD:
IC008
HA:
IC008
1
D1R
20
Vcc
2
19
A1
G
18
3
A2
B1
17
4
A3
B2
16
5
A4
B3
15
A5
6
B4
14
A6
7
B5
13
A7
8
B6
A8
12
9
B7
11
GND
B8
10
SN75124NS (XN976A00)
Triple Line Receiver
MAIN: IC902
1A
Vcc
1
16
1B
1S
2
15
2R
1R
3
14
2S
1Y
4
13
2A
3A
5
12
2B
3S
6
11
2Y
3R
7
10
GND
8
9
3Y
TC7S04F (XM182A00)
Inverter Gate
AD: IC007
1
5
NC
VDD
IN
2
VSS
3
4
OUT
HD74LV273AFPEL (IS027300)
Octal D-Type Flir Flop
MAIN:
IC925-928
HA:
IC001-006
1
20
CLEAR
2
19
1Q
Q
Q
CL
CL
3
D CK
CK
D
18
1D
4
17
2D
D
CK
CK
D
CL
CL
5
Q
Q
16
2Q
6
15
3Q
Q
Q
CL
CL
7
D CK
CK
D
14
3D
8
13
4D
D
CK
CK
D
CL
CL
9
12
4Q
Q
Q
10
11
GND
SN75C1168NSR (XU073A00)
Line Driver / Receiver
MAIN: IC903
1
1B
16
Vcc
2
15
1A
1D
3
14
1R
1Y
4
13
1DE
1Z
5
12
2R
2DE
6
11
2A
2Z
7
2B
10
2Y
GND
8
9
2D
TC7S08F (XM616A00)
2 Input AND Gate
HA: IC007
IN B
VDD
1
5
IN A
2
3
4
OUT
VSS
SN75121NSR (XU816A00)
Dual Line Driver
MAIN: IC930
1A
1
VCC
1B
2
8Q
1C
3
8D
1D
4
7D
1E
5
7Q
1F
6
6Q
1Y
7
6D
GND
8
5D
5Q
CLOCK
HD74HC4053AF(EL) (XY879A00)
Triple 2-Channel
Multiplexer/Demultiplexer
HA: IC102,202,302,402,502
Switches IN/OUT
Y1
1
Y1
- do. -
Y0
2
Y0
- do. -
Z1
3
Z1
Commons OUT/IN
4
Z
Z
Swiches IN/OUT
5
Z0
Z0
Control Inhibit
6
INH
-DC Voltage Supply
7
VEE
- do -
8
V
SS
NJM072M (XC458A00)
Dual Operational Amplifier
HA: IC103,203,303,403,503,603,703,803
A
-
1
2
3
+V
-IN
OUT
A
A
AD824
16
Vcc
15
2F
14
2E
13
2D
12
2C
11
2B
10
2A
9
2Y
+DC Voltage Supply
V
16
DD
Commons OUT/IN Y
Y
15
- do. -
X
X
14
Swiches IN/OUT
X1
X1
13
- do -
X0
X0
12
Control Input
A
A
11
- do. -
B
B
10
- do. -
C
C
9
B
-
4
5
6
7
8
9
-V
-IN
+V
+IN
+IN
OUT
A
B
B
B
17

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