Ic Block Diagram - Yamaha TYROS 2 Service Manual

Tyros2
I IC BLOCK DIAGRAM
HD74LVC139FPEL (XS048A00)
Dual 2 to 4 Demultiplexer
DM: IC32
1G
1
G
2
1A A G
3 A
1B B
B
1Y0 4 Y0
5 Y0
1Y1 Y1
6 Y1
1Y2 Y2
1Y3 Y3
7 Y2
Y3
GND 8
TC74VHC14FT(EL,K) (XV890B00)
Hex Inverter
DM: IC4,IC5,IC10,IC49,IC410
1A 1
1Y
2
2A
3
2Y
4
3A
5
3Y
6
GND
7
HD74LVC08FPEL (XU720A00)
Quad 2 Input AND
DM: IC33
1A 1
1B 2
1Y 3
2A 4
2B 5
2Y 6
7
VSS
40
HD74LVC138FPEL-E (XS963A00)
3 to 8 Demultiplexer
DM: IC30,IC401
16 VCC
A
15 2G
B
Select
14
2A
C
13 2B
G2A
12
2Y0
G2B
Enable
11
2Y1
G1
10 2Y2
Output Y7
2Y3
9
GND
HD74LV21AFPEL-E (IS002100)
Dual 4 Input AND
DM: IC23,IC419
1 VDD
6A
2
6Y
3
5A
4
5Y
5
4A
6
4Y
7
HD74LV32AFPEL-E (IS003200)
Quad 2 Input OR
DM:IC1
14 VDD
13 4B
12 4A
11 4Y
10 3B
9 3A
GND
8 3Y
1
16 Vcc
A
2 15
B Y0
Y0
3
C Y1 14
Y1
4 G2A Y2
13
Y2
5 G2B
Y3 12
Y3
Output
6
G1 11
Y4
Y4
7 Y5
10
Y7 Y5
Y6
8
9
Y6
1A Vcc
1 14
1B 2D
2 13
NC 2C
3 12
1C NC
4 11
1D 2B
5 10
1Y 2A
6 9
GND 2Y
7 8
1A Vcc
1 14
1B 4B
2 13
1Y 4A
3 12
2A 4Y
4 11
2B 3B
5 10
2Y 3A
6 9
3Y
7 8
TC7W04FU (XQ805A00)
Inverter
DM: IC300,IC301
1A 1 8 Vss
3Y 2
7 1Y
3
2Y 6 3A
VDD 2Y
4 5
TC7SH08FU (XR680A00)
2 Input AND Gate
DM: IC55
Vcc
IN B
1 5
IN A
2
3 4
GND OUT Y
TC7SH32FU (XW633A00)
2 Input OR Gate
DM: IC56
IN B Vcc
1 5
IN A
2
3 4 OUT Y
GND
MO
TR
OWNE
BEDIE
MODE