Yamaha S80 Manuel de service Page 19

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Vue de la page 18
19
S80
1
2
3
4
5
6
7
1B
1A
1R
1DE
2R
2A
2B
16
15
14
13
12
11
V
CC
1D
1Y
1Z
2DE
2Z
2Y
8
GND
9
10
2D
M5M34051FP(XV103A00)
IC12
Line Transceiver
1
2
3
4
8
7
6
5
Output A
Non-Inverting
Input A
Ground
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
Inverting
Input A
+-
+-
NJM4556AMT1(XQ138A00)
IC23
Operation Amplifier
NC
IN
V
SS
V
DD
OUT
1
2
3
6
5
SC7SU04FEL (XI348A00)
IC21
Inverter
D1R
A1
A2
A3
A4
A5
A6
A7
A8
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
V
CC
G
B1
B2
B3
B4
B5
B6
B7
B8GND
TC74VHCT245AF(XV242A00)
TC74VHCT245AFT(XT744A00)
SN74HC245NSR(XD838A00)
IC31
Buffer
Octo1 3-state Bus Transceiver
NJM4556AD (XQ824A00)
µPC4570G2 (XF291A00)
µPC4570C (XC520A00)
IC62,IC65,IC73
Dual Operational Amplifier
1
2
3
4-V
+V
8
7
6
5
Output A
Non-Inverting
Input A
-DC Voltage Supply
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
Inverting
Input A
+-
+-
TC74HC14AF-TP1 (XD657A00)
IC8,IC17,IC20,IC22,IC32,IC100
Hex Inverter
1
2
3
4
5
6
7
1A
1Y
2A
2Y
3A
3Y
GND
14
13
12
11
10
9
8
VDD
6A
6Y
5A
5Y
4A
4Y
TC74HC74AF (XP003A00)
IC18,IC19
Dual D-Type Flip-Flop
PR CLR
INPUTS OUTPUTS
CLK D Q Q
LH H L
HL L H
LL H H
HH f H H L
HH f L L H
HH L Q Q
D
CK
PR
Q
Q
D
CK
PR
Q
Q
CLR
CLR
OO
2PR
11CLR
2
3
4
5
6
7
1D
1CK
1PR
1Q
1Q
GND
8
9
10
11
12
13
14
V
CC
2CLR
2D
2CK
2Q
2Q
TC7W32FU(TE12L) (XQ173A00)
IC75
OR
1
2
3
4
5
6
7
8
1A
1B
2Y
GND
V
CC
1Y
2B
2A
TC74HC4052AF (XS790A00)
IC13,IC14,IC15,IC16
Multiplexer
1
2
3
4
5
6
7
OY
2Y
Y-COM
3Y
1Y
INH
V
EE
16
15
14
13
12
11
10
V
DD
2X
1X
X-COM
OX
3X
A
2Y
Y-COM
3Y
1Y
INH
2X
0Y
B
1X
X-COM
0X
3X
A
8
V
SS
9
B
DS90C402M (XW357A00)
IC102
Line Receiver
1
2
3
4
8
7
6
5
Vcc
RI 1+
RI 1-
RI 2-
RI 2+
RO 2
GND
RO 1
R
R
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