Ic Block Diagram - Yamaha CLP-340 Service Manual

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IC BLOCK DIAGRAM

HD74LV21ATELL (X0010A0R)
SN74LV21APWR (X2377A0R)
Dual 4 Input AND
DM: IC16
1A
1
1B
2
NC
3
1C
4
1D
5
1Y
6
GND
7
TC7W14FU (XN883A0R)
TC7WH14FU (XY806A0R)
Triple lnverter
DM: IC4, 21, 311
DM: IC22
1A 1
3Y 2
3
2A
4
GND
(X7950A00)
BD6516F-E2
High Side Switch
DM: IC11
CTALA
1 8
OUTA
FLAGA 2 7 VDD
GND
3 6
FLAGB
CTALB 4 5 OUTB
Pin No. Pin Name Pin Function
1
CTRLA
Control input
4
CTRLB
2 FLAGA
Error flag output
3 FLAGB
5
OUTB
Switch output
8 OUTA
6
GND Ground
VDD Switch input
7
（IC ブロック図）
TC74VHC126FT (X2891B00)
HD74LV126ATELL (X3123A0R)
SN74LV126APWR (X3865A0R)
Bus Buffer
DM: IC9, 15
Vcc
14
1G
2D
13
1A
2C
12
2Y
NC
11
2G
2B
10
2A
2A
9
2Y
2Y
8
GND
BA4560RF-E2 (X6897A00)
Dual Operational Amplifier
AJACK: IC1, 2
DM: IC305
Output A
8 Vcc
Inverting
7 1Y Input A
Non-Inverting
6 Input A
3A
-DC Voltage Supply
5
2Y
Over
CTALA 1
Current
Detector
FLAGA 2
Thermal
Shutdown
FLAGB 3
Over
Current
CTALB 4
Detector
1
14
Vcc
2
13
4G
3
12
4A
4 11
4Y
5 10
3G
6
9
3A
7
8
3Y
+DC Voltage
1 +V 8
Supply
Output B
2 7
- +
Inverting
3 6
+ -
Input B
Non-Inverting
4 -V 5
Input B
Control Charge
8 OUTA
Logic Pump
7 VDD
Oscillator
6 GND
Control Charge
Logic Pump
5 OUTB
CLP-340/CLP-340M/CLP-340C
SN74AHCT245PWR (X2709A0R)
SN74LV245APWR (X3693A0R)
TC74VHCT245AFT (XT744B0R)
HD74LV245ATELL (XW744A0R)
Octal 3-State Bus Transceiver
DM: IC6, 10
DM: IC12–14, 17, 18
1
D1R
20 Vcc
2
19
A1
G
18
3
A2
B1
17
4
A3
B2
16
5
A4 B3
15
6
A5 B4
14
A6 7 B5
13
A7
8 B6
12
A8
9 B7
GND 11 B8
10
NE5532DR (X5482A00)
Dual Operational Amplifier
DM: IC305
+DC Voltage
Output A
1 +V 8
Supply
Inverting
Output B
2 7
Input A - +
Inverting
Non-Inverting
3 6
+ -
Input B
Input A
Non-Inverting
Ground
4 5
Input B
LA6517M-TRM-E (XT131A0R)
Dual Power Operational Amplifier
AJACK: IC3
NC 1 16 NC
NC 2 15 NC
OUT 1 3 14 INPUT -1
Amp1
4 13
VCC 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
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