Yamaha IM8-32, Service Manual

Page: 46 / 307

46
IM8-40/IM8-32/IM8-24
IC BLOCK DIAGRAM
（IC ブロック図）
TC74VHC14F(EL, K, F)
(XW876B00)
IN2: IC102, IC302, IC502, IC702
ST2: IC511, IC711
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
TC74HC4053AF(EL, F) (XY879A00)
IN2: IC101, IC301, IC501, IC701
ST2: IC510, IC610, IC710, IC810
Triple 2-Channel
Multiplexer/Demultiplexer
Switches IN/OUT
Control Inhibit
V
EE
V
SS
Y1
Switches IN/OUT
Y0
Switches IN/OUT
Z1
Commons OUT/IN
Z
Swiches IN/OUT
Z0
Control Input
V
CC
B
Control Input
C
Commons OUT/IN
Y
Commons OUT/IN
X
Swiches IN/OUT
X1
Swiches IN/OUT
X0
Control Input
A
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Y0
Y1
Z1
Z
Z0
INH
C
Y
X
X1
X0
A
B
1
2
3
4
5
6
7
14
13
12
11
10
9
OUT3
OUT4
GND
+IN4
–IN4
+IN3
–IN3 8
OUT2
OUT1
VCC
–IN1
+IN1
–IN2
+IN2
BA10339F-E2 (X6266A0R)
IN2: IC105, IC202, IC305, IC402,
IC505, IC602, IC705, IC802
MAS2: IC105–108, IC205–208, IC305–308,
IC405–408, IC506, IC603–614
ST2: IC513, IC612, IC713, IC812
Comparator
1
+
–
2 3
4
–
–
–
+
+
+
NJM072BM-E(TE1)
(X4543A01)
IN1: IC101, IC201, IC301, IC401,
IC501, IC601, IC701, IC801
Dual Operational Amplifier
1
2
3
4
8
7
6
5
A Output
+V
A +Input
V-
V+
B Output
B -Input
B +Input
A -Input
+ -
+ -
NJM45 8 0M-D(TE2)
(X5025A0R)
SUM: IC401–411
Dual Operational Amplifier
1
2
3
4 -V
8
7
6
5
Output A
+V
Non-Inverting
Input A
-DC Voltage Supply
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
Inverting
Input A + -
+ -
NJM4556AL
(XP844A00)
SUM: IC701
Dual Operational Amplifier
1
A
2 3 4 5 6 7 8
OUT
A
-IN
A
+IN
A
+IN
B
-IN
B
OUT
B
-V +V
-
+
B
-
+
BA4560RF-E2
(X6897A00)
COMP: IC102, IC302, IC502, IC702
IN2: IC103, IC303, IC503, IC703
MAS2: IC103, IC104, IC203, IC204,
IC303, IC304, IC403, IC404,
IC601, IC602
ST2: IC512, IC611, IC712, IC811
SUM: IC304, IC305
Dual Operational Amplifier
1
2
3
4 -V
8
7
6
5
Output 1
+V
+Input 1
VEE
VCC
Output 2
-Input 2
+Input 2
-Input 1
+ -
+ -
NJM206 8 M-D(TE2)
(X3505A00)
COMP: IC101, IC201, IC301, IC401, IC501, IC601, IC701, IC801
IN1: IC102–108, IC302–308, IC502–508, IC702–708
IN2: IC104, IC106, IC201, IC304, IC306, IC401,
IC504, IC506, IC601, IC704,IC706, IC801
MAS1: IC101–104, IC301–306, IC401–404, IC501–504
MAS2: IC101, IC102, IC201, IC202, IC301, IC302, IC401, IC402,
IC501, IC504, IC507
ST1: IC110–114, IC210–214, IC310–314, IC410–414
ST2: IC514–518, IC613–616, IC714–718, IC813–816
SUM: IC101–119, IC301–303
USB: IC103, IC104
Dual Operational Amplifier
1
2
3
4 -V
8
7
6
5
Output A
+V
Non-Inverting
Input A
-DC Voltage Supply
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
Inverting
Input A + -
+ -