Ic Block Diagram（Icブロック図 - Yamaha AW-2400 Service Manual

AW2400
IC BLOCK DIAGRAM（ICブロック図）
SN74LV04APWR (X5965A00)
MAIN: IC311, 401-403
SN74HCU04NSR (XW842A00)
DIO: IC004
Hex Inverter
1
1A
2
1Y
3
2A
4
2Y
5
3A
6
3Y
7
Vss
SN74LV74APWR (X5534A00)
MAIN: IC210, 314
Dual D-Type Flip-Flop
1CLR 1
2
1D D
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
SN74LV541APWRBUS (X5966A00)
MAIN: IC114
Octal 3-State Buffer
G1 1
A1
2
A2
3
A3
4
A4
5
A5 6
A6
7
A7
8
A8
9
GND
10
36
SN74LV08APWR (X4463A00)
MAIN: IC118
Quad 2 Input AND
14 VDD
13
6A
12
6Y
11
5A
10
5Y
9
4A
VSS
8
4Y
SN74LV244APWR (X3292A00)
DIO: IC001
Octal 3-State Bus Buffer
14
VCC
13
2CLR
12
2D
11
2CK
10
2PR
9
2Q
8
2Q
OUTPUTS
Q Q
(GND) Vss
H L
L H
H H
H L
L H
Q Q
O O
SN74LV4051ANSR (X3955A00)
FD: IC007, 008
Single 8-Channel
Multiplexer/Demultiplexer
20 Vcc
Channel IN/OUT 4
G2
19
- do. -
Y1
18
Commons OUT/IN
17 Y2
Channel IN/OUT 7
Y3
16
- do. -
Y4
15
Control Inhibit
Y5
14
-DC Voltage Supply
Y6
13
- do -
Y7
12
Y8
11
1A VDD
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
1G VDD (Vcc)
1 20
2G
2 19
1A1
1Y1
3 18
2Y4
1A2 2A4
4 17
1Y2
5 16
2Y3
2A3
1A3
6 15
1Y3
2Y2 7 14
2A2
8 13
1A4
1Y4
9 12
2Y1
2A1
10 11
+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. - B
7 VEE B 10
- do. - C
8 V C 9
SS
SN74LV11APWR (X3516A00)
MAIN: IC015
Triple 3 Input AND
1A
1
1B
2
2A
3
2B
4
2C
5
2Y
6
VSS
7
SN74LVC245APWR (XZ287A00)
MAIN: IC006, 007, 009-011
SN74AHCT245PWR (X2709A00)
MAIN: IC103, 104, 110, 112, 301
AD: IC001, 002
SN74LV245APWR (X3693A00)
MAIN: IC107, 108, 111, 113
74VHC245SJX (XY874A00)
FD: IC001-003
SN74AHC245NSR (X2717A00)
FD: IC001-003
Octal 3-State Bus Transceiver
D1R 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
1
0
3
A
VDD
14
1C
13
1Y
12
3C
11
3B
10
3A
9
3Y
8
20 V
CC
19 G
18 B1
17 B2
16 B3
15 B4
B5
14
B6
13
B7
12
11 B8