Yamaha AD824, Service Manual

Page: 17 / 80

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