Ic Block Diagram - Yamaha Clavinova CLP-265GP Service Manual

CLP-265GP

■ IC BLOCK DIAGRAM

SN74AHC1G08DCKR (X3833A00)
TC7S08F (XP116A00)
Single 2-Input Positive-AND Gate
DM:IC002,IC023
1
A
2
B
3
GND
FUNCTION TABLE
INPUTS OUTPUT
A B
H H
L X
X L
SN74AHCT245PWR (X2709A00)
TC74VHC245AFT
Octal 3-State Bus Transceiver
DM:IC028
D1R 1
2
A1
3
A2
4
A3
5
A4
A5 6
A6 7
A7
8
A8
9
GND
10
LA6517M-TE-R (XT131A00)
Dual Power Operational Amplifier
AJACK: IC003
1
NC
2
NC
3
OUT 1 Amp1
4
VCC
Thermal Shut
Doun and
Current Limiter
5
OUT 2
Amp2
6
VEE
7
NC
8
NC
20
SN74LV32APWR
Quad 2 Input OR
DM:IC018
5 Vcc
4
Y
Y
H
L
L
NJM2068MD-TE2 (X3505A00)
(XT744B00) µPC4570G2-E1-A (X7351A00)
Dual Operational Amplifier
DM:IC014
EQ:IC001
AJACK:IC001,IC002
20 Vcc
19
Output A
G
Inverting
18
B1
Non-Inverting
17
B2
16
-DC Voltage Supply
B3
15
B4
14
B5
13
B6
12
B7
11
B8
UMG5N (WC668500)
Digital Transistor
DM: TA001,TA002,TA003,TA004
1
2
16 NC
15 NC
3
14
INPUT -1
13
INPUT +1
12
INPUT +2
11
INPUT -2
1
10
NC
2
9
NC
3
(X5647A00)
1A 1 14 Vcc
1B 2 13 4B
1Y 3 12 4A
2A 4 11 4Y
2B 5 10 3B
2Y 6 9 3A
7 GND 8 3Y
+DC Voltage
1 +V 8
Supply
Output B
2 7
Input A - +
Inverting
3 6
+ -
Input A Input B
Non-Inverting
-V
4 5
Input B
6
4
6
4
SN74LV126APWR (X3865A00)
Quad 3-State Bus Buffer
DM: IC029
1OE 1 14
A1 2 13
Y1 3 12
2OE 4 11
5 10
A2
Y2 6
9
GND 7 8
µPC4574G2 (X7391A00)
Quad Operational Amplifier
EQ:IC002,IC003,IC004,IC005
Output 1
1 14
Output 4
Inverting Inverting
2
- + 13
Input 1 Input 4
+ -
Non-inverting
Non-inverting
3
12
Input 1
Input 4
+DC Voltage Supply
4 +V 11 Ground
GND
Non-inverting Non-inverting
5
10
Input 2 Input 3
Inverting
Inverting
6
+ - 9
Input 2
Input 3
Output 2 7 8
Output 3
Vcc
4OE
A4
Y4
3OE
A3
Y3