Bose Personalized Amplification System Handbuch zur Fehlersuche - Seite 37
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A
Y
1
A1
B
2
B1
3
Y1
4
A2
5
B2
6
Y2
7
GND
74HC00, Quad 2 Input Nand Gate
74LCX125 Quad Buffer
1A
1
2
1B
1Y
3
4
2A
2B
5
2Y
6
GND
7
DIR
1
A
0
2
A
3
1
A
4
2
A
5
3
A
6
4
A
7
5
A
8
6
9
A
7
10
GND
APPENDIX
Vcc
14
B4
13
A4
12
Y4
11
B3
10
A3
9
Y3
8
14
V
CC
PIN DESCRIPTION
13
4B
PIN NUMBER
12
4A
1, 4, 9, 12
11
4Y
2, 5, 10, 13
10
3B
3, 6, 8, 11
9
3A
7
8
3Y
14
74LV32 Quad AND Gate
PIN DESCRIPTION
20
V
CC
19
OE
PIN NUMBER
18
B
1
0
17
B
1
2, 3, 4, 5,
6, 7, 8, 9
16
B
2
10
15
B
3
18, 17, 16, 15,
14
B
4
14, 13, 12, 11
13
B
5
19
12
B
6
20
11
B
7
74LV245 Octal Bus Transciever
37
PIN CONFIGURATION
1A
1
14
V
CC
1B
2
13
4B
1Y
3
12
4A
2A
4
11
4Y
2B
5
10
3B
2Y
6
9
3A
GND
7
8
3Y
74LV08 Quad AND Gate
Pin A ssign ment s for SOIC and DIP
Top View
CD4093BC Quad NAND Gate
SYMBOL
NAME AND FUNCTION
1A ± 4A
Data inputs
1B ± 4B
Data inputs
1Y ± 4Y
Data Outputs
GND
Ground (0 V)
V
Positive supply voltage
CC
SYMBOL
FUNCTION
DIR
Direction
A
to A
Data inputs/outputs
0
7
GND
Ground (0 V)
B
to B
Data inputs/outputs
0
7
OE
Output enable input (active LOW)
V
Positive supply voltage
CC
LOGIC SYMBOL
1A
1
1Y
3
1B
2
2A
4
2Y
6
2B
5
3A
9
3Y
8
3B
10
4A
12
4Y
11
4B
13