Yamaha CS6x Service Manual page 15

TC74VHC245F(XT487A00)
TC74VHC273F(XN971A00)IC52
IC11,IC101 SN74HC273NSR(XH223A00)
Transceiver
IC27, IC28,IC52
D-FF
D1R 1 20 V CC
CLEAR 1
A1 2 19 G
1Q 2
A2 3 18 B1
Q
CL
D CK
1D 3
A3 4 17 B2
2D 4
A4 5 16 B3
D CK
CL
Q
2Q 5
A5 6 15 B4
3Q 6
A6 7 14 B5
Q
CL
D CK
3D 7
A7 8 13 B6
4D 8
A8 9 12 B7
D CK
CL
Q
4Q 9
GND 10 11 B8
GND 10
M5M34051FP(XV103A00) NJM4556AMT1(XQ138A00)
IC12
IC23
Line Transceiver Operation Amplifier
1 16
1B V
CC
2 15
1A 1D
3
14
1R 1Y
4
13
1DE 1Z
Output A 1
5 12
2R 2DE
Inverting
2
Input A
- +
6
11
2A 2Z
Non-Inverting
3
7 10 Input A
2B 2Y
8 9 2D Ground 4
GND
SC7SU04FEL (XI348A00)
TC74VHCT245AF(XV242A00)
IC21 TC74VHCT245AFT(XT744A00)
Inverter SN74HC245NSR(XD838A00)
IC31,IC50
Buffer
Octo1 3-state Bus Transceiver
NC 1 6 V DD
IN 2
V 3 OUT D1R 1
SS 5
A1 2
A2 3
4
A3
A4 5
A5 6
A6 7
8
A7
9
A8
GND 10
TC7S66FF(XR682A00)
IC30
Analog Switch
IN / OUT 1 4 Vcc
20 V
CC OUT / IN 2
19 8Q
GND 3
Q 5 COUT
CL
CK D
18 8D
17 7D
CK D
CL
Q
16 7Q
6Q
15
Q
CL
CK D
14 6D
5D
13
CK D
CL
Q
5Q
12
11 CLOCK
NJM4556AD (XQ824A00)
NJM4558D-V (IG001390)
µPC4570G2 (XF291A00)
µPC4570C (XC520A00)
IC62,IC65,IC68,IC74
Dual Operational Amplifier
+DC Voltage
8
Supply
+DC Voltage
Output A 1 +V 8
Supply
7 Output B
Inverting
2 7 Output B
Input A - +
Inverting
Non-Inverting Inverting
6 3 6
+ - Input B Input A + - Input B
Non-Inverting
-DC Voltage Supply 4 -V 5
Non-Inverting
5 Input B
Input B
TC74HC14AF-TP1 (XD657A00)
IC8,IC17,IC20,IC22,IC32,IC100
Hex Inverter
1 14
1A VDD
20 V
CC
2 13
1Y 6A
19 G
3 12
2A
6Y
18 B1
4 11
2Y 5A
17 B2
5
3A 10
5Y
16 B3
6 9
3Y 4A
15 B4
7
GND 8
4Y
14 B5
13 B6
12 B7
11 B8
TC7W32FU(TE12L) (XQ173A00)
TC74HC74AF (XP003A00)
IC18,IC19 IC75
Dual D-Type Flip-Flop OR
1CLR 1 14 V CC
1A 1
1D 2 D 13 2CLR
1B 2
1CK 3 CK D 12 2D
2Y 3
1PR 4 PR CK 11 2CK
GND 4
1Q 5 Q PR 10 2PR
1Q 6 Q 9 2Q
Q
GND 7 Q 8 2Q
INPUTS OUTPUTS
PR CLR CLK D Q Q
L H H L
H L L H
L L H H
H H f H H L
H H f L L H
H H L Q Q
O O
DS90C402M (XW357A00)
IC102
Line Receiver
Vcc 1 8 RI 2-
RI 2+
RO 1 2 7
RI 1+ RO 2
3 6
RI 1- 4 5 GND
CS6X
TC74HC4052AF (XS790A00)
IC13,IC14,IC15,IC16
Multiplexer
V 1
8 CC OY 16 V
DD
2 15
2Y 2Y 2X 2X
7 1Y
3
14
Y-COM Y-COM 1X 1X
6 2B
4 13
3Y 3Y X-COM X-COM
5 2A
5 12
1Y 1Y 0X OX
6 11
INH INH 3X 3X
7 10
V EE A A
8
V 9 B
SS
15