Ic Block Diagram - Yamaha EZ-AG Service Manual

IC BLOCK DIAGRAM

74HCU04DT (XZ110A00)
DM: IC607
TC74HCT04AF-T1 (XI297A00)
MM74HCU04SJX (X0294A00)
DM: IC702
Hex Inverter
1
1A 14 VDD
2 13
1Y
6A
3
12
2A
6Y
4
2Y 11
5A
5
10
3A
5Y
6
9
3Y
4A
7 8
Vss 4Y
NJM4580E-T1 (XQ178A00)
DM: IC502
Dual Operational Amplifier
+DC Voltage
Output A
1 +V 8
Supply
Inverting
Output B
2 7
Input A - +
Non-Inverting Inverting
3 6
+ -
Input B
Input A
Non-Inverting
-DC Voltage Supply -V
4 5
Input B
M5291FP-600C (XR858A00)
DM: IC504
DC-DC Converter
Switch-Collector
1
Q
Switch-Emitter
2
Capacitor
3
1.17V
reference
voltage
Ground 4
HD74LVC08FP (XU720A00)
DM: IC306
Quad 2 Input AND
1A 1
1B
2
1Y
3
2A 4
2B 5
2Y
6
VSS
7
NJM12904V(TE1) (X3836A00)
DM: IC601-606
Dual Operational Amplifier
Output A
1
-Input A 2
+Input A
3
GND
4
Driver
8
S
R
Peak current detect
7
Generator
Comparator
Power supply
6
+
5 Input
14 VDD
4B
13
4A
12
Commons OUT/IN
11 4Y
10 3B
3A
9
3Y
8
V+
8
A
7 Output B
- +
B
-Input B
6
+ -
+Input B
5
SN74LV4053APWR (X2719A00)
DM: IC701
Triple 2-Channel
Multiplexer/Demultiplexer
Switches IN/OUT
V
1 16 CC
Y1
Switches IN/OUT Commons OUT/IN
2 15
Y0 Y
Y0 Y
Switches IN/OUT Commons OUT/IN
3 14
Z1 X
Z1 X
Swiches IN/OUT
4 13
Z X1
Z X1
Swiches IN/OUT Swiches IN/OUT
5 12
Z0 X0
Z0 X0
Control Input
Control Inhibit
6 11
INH A
A
Control Input
V
EE 7 10
B
B
Control Input
GND
8 9
C
µPD6379AGR (XR998A00)
µPD6379AGR-E1 (XS027A00)
DM: IC501
D/A Converter
Rch analog
Power supply
1 R V 8
OUT DD
Output
Voltage
Shift clock
2 REF C 7
LK
reference
Ground Serial dat input
GND SI
3 6
Lch analog
L/R clock
L LR
4 OUT CK 5
output
EZ-AG
11