Yamaha Clavinova CVP-405 Service Manual page 44

CVP-405/CVP-405PE/CVP-405PM
TC74ACT74FT (X6536A00)
TC74VHC74FT (XV892B00)
Dual D-Type Flip-Flop
DM: IC603
DM: IC309
1
1CLR
2
D
1D
D
3
1CK CK
4
1PR PR
CK
5 Q
1Q
PR
6
Q
1Q Q
7
GND
Q
INPUTS
PR CLR CLK D
L H X X
H L X X
L L X X
H H f H
H H f L
H H L X
SN74LV245APWR (X3693A00)
TC74VHC245FT (XU797B00)
HD74LV245ATELL (XW744A00)
Octal 3-State Bus Transceiver
DM: IC017–020, 023, 024
1
D1R
2
A1
3
A2
4
A3
A4 5
A5 6
A6
7
A7
8
A8
9
GND
10
TC7SH32FU (XW633A00)
TC7SET32FU (XW814A00)
2-Input OR Gate
DM: IC030
DM: IC009
IN B
1
IN A
2
3
GND
44
TC74VHC126FT (X2891B00)
HD74LV126ATELL (X3123A00)
SN74LV126APWR (X3865A00)
Bus Buffer
DM: IC003
14
VCC
13
2CLR
12
2D
11
2CK
10
2PR
9
2Q
8 GND
2Q
OUTPUTS
Q Q
H L
L H
H H
H L
L H
Q Q
O O
HD74LV273ATELL (X2689A00)
SN74LV273APWR (X5074A00)
Octal D-Type Flip-Flop
DM: IC027
20 Vcc
CLEAR
19
G
1Q
18
B1
1D
17
B2
2D
16
B3
2Q
15
B4 3Q
14 3D
B5
4D
13
B6
4Q
12
B7
GND
11
B8
TC7WHU04FU (X4063A00)
Triple Inverter
DM: IC310, 311, 600, 602
Vcc
5
GND
4
OUT Y
1G 1
14 Vcc
2
13
1A
4G
3 12
2Y 4A
4
2G 11
4Y
5
10
2A 3G
6 9
2Y
3A
7
8
3Y
1 20
VCC
2 19
8Q
Q Q
CL CL
3 D CK CK D 18
8D
4 17
7D
D CK CK D
CL CL
5 Q Q 16
7Q
6 15
6Q
Q Q
CL CL
7 14
D CK CK D 6D
8 13
5D
D CK CK D
CL CL
9 12
Q Q 5Q
10 11
CLOCK
1A Vcc
1 8
3Y 1Y
2 7
2A 3A
3 6
2Y
4 5
TC74VHC139FT (XV893A00)
Dual 2 to 4 Demultiplexer
DM: IC028
1G 1 Vcc
16
G
2
G 15
1A 2G
A
A
3 14
1B 2A
B
B
4
1Y0 13 2B
Y0
5 Y0
12
1Y1 2Y0
Y1
Y1
6 11
1Y2 2Y1
Y2
7 Y2
1Y3 10 2Y2
Y3
Y3
8
GND 9 2Y3
TC7SH08FU (XR680A00)
2 Input AND Gate
DM: IC307
Vcc
IN B
1 5
IN A
2
3 4
GND OUT Y
TC7W14FU (XN883A00)
Triple lnverter
DM: IC328
1 8
1A
3Y 2 7
2A 3 6
4 5
GND
Vcc
1Y
3A
2Y