Yamaha AW4416, Service Manual

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AW4416
HD74HC174FP (XV610A00)
TC74HC174F(EL) (XY878A00)
Hex D-Type Flip-Flop
SUB-CPU: IC306-308
Q
Q
D C K C K
C K D C K
G G
CLEAR
1Q
1D
2D
2Q
3D
3Q
GND
1 16
2 15
3 14
4 13
5 12
6 11
7 10
8 9
Vcc
6Q
6D
5D
5Q
4D
4Q
CK
Q
D
G G
Q
D C K
G
C K
Q
D
G
Q
D
TC74VHC245F (XT487A00)
74VHC245ASJX (XY874A00)
TC74HC245AF (XS720A00)
MM74HC245ASJX (XW107A00)
Octal 3-State Bus Transceiver
MAIN: IC302-304, 504, 606-612, 702, 714,
811, 821, 814, 817, 818, 819
SUB-CPU: IC304
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
SN75121NSR (XU816A00)
Dual Line Driver
MAIN: IC704
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
SN75124NS (XN976A00)
SN75124NSR (XV930A00)
Triple Line Receiver
MAIN: IC703
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
TC74HC4052AF (XS790A00)
MM74HC4052SJX (XY876A00)
Differential 4-Channel
Multiplexer/Demultiplexer
SUB-FADER: IC106, 111
1
2
3
4
5
6
7
0Y
2Y
Y-COM
1Y
INH
VEE
VSS
3Y
16
15
14
13
12
11
VDD
2X
1X
X-COM
0X
3X
A
8
9
10
B
2Y
0Y
Y-COM
3Y
1Y
INH
B
2X
1X
X-COM
0X
3X
A
MM74HC4053SJX (XY877A00)
TC74HC4053AF(EL) (XY879A00)
Triple -Channel
Multiplexer/Demultiplexer
MAIN: IC701
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
TC7WU04F (XN567A00)
Triple lnverter
MAIN: IC516, 712, 713, 833
1
2
3
4
8
7
6
5
1A
2A
GND
Vcc
1Y
3A
2Y
3Y
TC7S04F (XJ018A00)
Inverter Gate
MAIN: IC511
1
2
3
5
4
NC
VSS
VDD
OUT
IN
TC7S08F (XM616A00)
2 Input AND Gate
MAIN: IC510, 614
1 5
2
3 4
IN B
VSS
VDD
OUT
IN A