Yamaha O1V 96 Service Manual page 42

01V96
74VHC245SJX (XY874A00)
ADA: IC951, 952
MAIN: IC102-104, 106, 113-116, 132,
506, 507
SN74HC245NSR (XD838A00)
FD: IC005, 006
MAIN: IC709-711, 713
TC74VHC245F (XT487A00)
ADA: IC001, 003
TC74VHCT245AF (XV242A00)
MAIN: IC020, 109, 110, 140, 141, 508, 601
602, 716
Octal 3-State Bus Transceiver
D1R 1
2
A1
3
A2
4
A3
5
A4
A5 6
A6 7
A7 8
A8
9
GND
10
TC74LVX4245FS (XU229A00)
MAIN: IC107, 108, 111, 112
Dual Supply Octal Bus Transceiver
VCCA 1
DIR 2 1
A1
3
2
A2 4
3
A3
5
4
A4 6
5
A5
7
6
A6
8 7
A7 9
8
A8 10 9
GND 11 10
GND 12
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SN74HC273NSR (XH223A00)
MAIN: IC701-706
TC74VHC273F (EL) (XY254A00)
FD: IC007-010
Octal D-Type Flip-Flop
CLEAR
20 Vcc
19
G
18
B1
17
B2
16
B3
15
B4
14
B5
13
B6
SN74LV4051ANSR(X3955A00)
12
B7
FD: IC011, 014, 017
11 B8
Single 8-channel
Multiplexer/Demultiplexer
Channel IN/OUT 4
- do. -
Commons OUT/IN
Channel IN/OUT 7
- do. -
24 VCCB
0 Control Inhibit
VCCB
23
A
-DC Voltage Supply
22 /G
B
- do -
B1
21
D
D 20 B2
19
G2
B3
18
G1
B4
SN75121NSR (XU816A00)
15 17 B5
ADA: IC010
16
14
B6
Dual Line Driver
13 15
B7
12 14
B8
11
13
GND
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1 20
VCC
2 19
8Q
1Q Q Q
CL CL
3 18
D CK CK D
1D 8D
4 17
7D
2D
D CK CK D
CL CL
5 Q Q 16
2Q 7Q
6 15
3Q 6Q
Q Q
CL CL
7 14
D CK CK D 6D
3D
8 13
4D 5D
D CK CK D
CL CL
9 Q Q 12 5Q
4Q
10 11
GND CLOCK
+DC Voltage Supply
1 CH4 V 16
DD
6 Channel IN/OUT 2
2 CH6 CH2 15
- do. -
3 COM CH1 14
- do -
4 CH7 CH0 13
5 - do -
5 CH5 CH3
12
Control Input
6 INH A 11
- do. -
7 VEE B 10
- do. -
8 V C 9
SS
1 16 Vcc
1A
1B 2 15 2F
1C 3 14 2E
1D 4 13 2D
1E 5 12 2C
1F 6 11 2B
1Y 7 10 2A
GND 8 9 2Y
TC74VHC541F-EL (X3954A00)
MAIN: IC117, 209, 505, 603
Octal 3-State Buffer
G1 1
A1
2
A2
3
A3 4
A4
5
A5 6
A6
7
A7
8
A8
9
GND 10
SN74LV4052ANSR (IS405210)
FD: IC003, 004
Differential 4-channel
Multiplexer/Demultiplexer
1
0Y
2Y 2
2Y 2X
Y-COM 3
Y-COM 1X
1
3Y 4 3Y X-COM
0
1Y 5
1Y 0X
3
INH 6
INH 3X
A
VEE 7
A
B
VSS 8
C
SN75124NSR (XV930A00)
ADA: IC009
Triple Line Receiver
1A
1
1B
2
2R
3
2S
4
2A
5
2B
6
2Y
7
GND
8
20 Vcc
19 G2
Y1
18
Y2
17
Y3
16
Y4
15
Y5
14
Y6
13
12 Y7
Y8
11
16 VDD
15
2X
14 1X
13 X-COM
12
0X
11
3X
10 A
B
9
Vcc
16
1S
15
1R
14
1Y
13
3A
12
3S
11
3R
10
9 3Y