Ic Block Diagram - Yamaha N-100 Service Manual

N-100

IC BLOCK DIAGRAM

SN74HC14NSR (XC725A00)
PN: IC1
Hex Inverter
1
1A
2
1Y
3
2A
4
2Y
5
3A
6
3Y
7
GND
TC7S08FU (XP116A00)
DM: IC002
2 Input AND Gate
IN B
1
IN A
2
3
GND
µPC4574G2-E1-A (X7391A00)
MAEQ: IC007, 010
Quad Operational Amplifier
OUT A
1
2
- +
-IN A
+ -
+IN A
3
+V
DD 4 +V
-V
+IN B
5
-IN B 6 + -
OUT B 7
20
SN74LV32APWR (X5647A00)
DM: IC018
Quad 2 Input OR
1A
14
VDD
1B
13
6A
1Y
12
6Y
2A
11
5A
2B
10
5Y
2Y
9
4A
GND
8 4Y
TC7W04FU (XP004A00)
DM: IC006
Triple Inverter
1A
Vcc
5
3Y
2A
4
OUT Y
GND
SN74AHC1G08DCKR (X3833A00)
DM: IC002
Single 2-Input Positive-AND Gate
14 OUT D
13
-IN D
GND
+IN D
12
-V
11 SS
+IN C
10
9 -IN C
8 OUT C
Vcc
1 14
4B
2 13
4A
3 12
4Y
4 11
3B
5 10
3A
6 9
3Y
7 8
Vcc
1 8
1Y
2 7
3A
3 6
2Y
4 5
1
A 5 Vcc
2
B
3
4
Y
FUNCTION TABLE
INPUTS OUTPUT
A B Y
H H H
L X L
X L L
SN74LV126APWR (X3865A00)
DM: IC029
Bus Buffer
1
1G 14
Vcc
2
13
1A 4G
3
12
2Y
4A
4 11
2G 4Y
5 10
2A
3G
6
9
2Y
3A
7
GND 8
3Y
NJM2068M-D(TE2) (X3505A00)
DM: IC014
JACK: IC1
µPC4570G2-E1-A (X7351A00)
DM: IC014
MAEQ: IC006, 009, 011
Dual Operational Amplifier
+DC Voltage
Output A
1 +V 8
Supply
Inverting
Output B
2 7
Input A - +
Non-Inverting Inverting
3 6
+ -
Input A Input B
Non-Inverting
-DC Voltage Supply
4 -V 5
Input B
LA6517M-TRM-E (XT131A00)
JACK: IC3
Dual Power Operational Amplifier
1 16
NC NC
NC 2 15 NC
OUT 1 3 14 INPUT -1
Amp1
VCC 4 13 INPUT +1
Thermal Shut
Doun and
Current Limiter
5 12
OUT 2 INPUT +2
Amp2
6 11
VEE INPUT -2
7 10
NC NC
NC 8 9 NC