Ic Block Diagram Ic - Yamaha portatone psr 1100 Service Manual

PSR-1100/PSR-2100
IC BLOCK DIAGRAM
SN74HCU04NSR (XW842A00)
Hex Inverter
DM: IC510, 511
1A 1
14
2 13
1Y
3
2A 12
4
2Y 11
5
3A 10
6
3Y
Vss 7
SN74HCT138NSR (XY865A00)
3 to 8 Demultiplexer
DM: IC600
A 1
16
A
Select B
2 B 15
Y0
C 3
C Y1 14
G2A 4
G2A Y2 13
Enable
G2B 5
G2B Y3 12
G1 6
G1 Y4 11
Output Y7
7 10
Y7 Y5
Y6
GND 8
74LVC245APW (XZ286A00)
HD74LV245ATELL (XW744A00)
TC74VHCT245AFT (XT744A00)
Octal 3-State Bus Transceiver
DM (PSR-1100): IC301, 302, 911
DM (PSR-2100): IC301-303, 460-462, 465-467, 911
20
D1R 1
19
A1 2
18
3
A2
17
A3 4
16
5
A4
15
A5 6
14
7
A6
13
A7 8
12
9
A8
11
GND 10
24
IC
HD74LV08AFPEL (IS000800)
Quad 2 Input AND
DM: IC101
1A
VDD
1B
6A
1Y
6Y
2A
5A
2B
5Y
2Y
9
4A
VSS
8
4Y
HD74LVC139FPEL (XS048A00)
Dual 2 to 4 Demultiplexer
DM: IC308
Vcc 1G
YO 1A
Y1
1B
1Y0
Y2
Output
Y3 1Y1
Y4
1Y2
Y5 1Y3
GND
9 Y6
M5227P (XF751A00)
5-Band Graphic Equalizer
AM: IC104, 105
IN1
Vcc
NF1
G
IN2
B1
NF2
B2
IN3
B3
B4 NF3
B5
IN4
B6
NF4
B7
B8
1 14 VDD
2 13 4B
3 12 4A
4 11 4Y
5 10 3B
6 9 3A
7 8 3Y
1 Vcc
16
G
2 G 15 2G
A
A
3
14 2A
B
4 B 2B
13
Y0
5 Y0
12 2Y0
Y1
6 Y1
11
2Y1
Y2
Y2
7 10 2Y2
Y3
Y3
8 2Y3
9
47k
1 16 -Vcc
10k
2 15
GND
540
10k
47k
3 14
+Vcc
4 13
OUT
540
+ -
540 47k
5 12
-IN
6 11
+IN
47k
540
47k 540
7 10 NF5
+ -
8 9 IN5
540 47k
SN74HC132NSR (XW792A00)
MM74HC132SJX (XY352A00)
Quad 2 Input NAND
DM: IC914
1 14
1A VDD
1B 2 13 4B
1Y 3 12 4A
4 11
2Y 4Y
2A 5 10 3Y
2B 6 9 3B
GND 7 8 3A
TC74HC157AP (IR015700)
Quad 2 to 1 Multiplexer
AM: IC380
1
SELECT 16 Vcc
2 15
1A 1A G STROBE
3
1B 4A 14
1B 4A
4
1Y 1Y 4B 13 4B
5
2A 4Y 12
2A 4Y
6
11
2B 2B 3A 3A
2Y 7 2Y 3B 10 3B
8
GND 9 3Y
LB1443N (XF483A00)
LED Driver
AM: IC109 (PSR-2100 only)
+ + + + +
- - - - -
-
amp
+
1 2 3 4 5 6 7
VC1
VC3 GND Amp Out
VC2 VC4 VC5
8 9
VCC
In