Function Table - Denon AVR-786 Service Manual

LH28F800BJE (IC805)
SN74LV573APW (IC818,819)
OE
D0
D1
D2
D3
D4
D5
D6
D7
GND
SN74LVC139APWR (IC820)
1G
1A
1B
1Y0
1Y1
1Y2
1Y3
GND
TC9273N (IC703)
Vcc
1 20
Q0
2 19
Q1
3 18
4 17 Q2
16 Q3
5
Q4
6 15
11
14 Q5
7
E
8 13 Q6
1
9 12 Q7 OE
10
11 LE
1 16
V
CC
2 15 2G
G G
3 14 2A
4 13 2B
L
5 12 2Y0
L
6 11 2Y1
L
2Y2
7 10
L
8 9 2Y3
H
D0 D1 D2 D3 D4
2 3 4 6 5
D D D D
L
Q Q Q Q
L L L L
19 18 17 16
Q0 Q1 Q2 Q3

FUNCTION TABLE

(each decoder/demultiplexer)
INPUTS
OUTPUTS OUTPUTS
SELECT
B A Y3 Y2 Y1
L L H H H
L H H H L
H L H L H
H H L H H
X X H H H
SN74LV14APW (IC829)
1A V
1 14
CC
1Y 6A
2 13
2A 6Y
3 12
2Y 5A
4 11
3A 5Y
5 10
3Y 4A
6 9
GND 7 8 4Y
21
AVR-1906 / AVR-786 / AVC-1620
D5 D6 D7
7 8 9
D D D
D
Q Q Q
Q
L L L L
15 14 13 12
Q4 Q5 Q6 Q7
Y0
L
H
H
H
H
MM74HCT00MT (IC814-815)
B4 A4 Y4
V
CC
14 13 12 11
2 4
1 3
A1 B1 Y1 A2 B2 Y2 GND
B3 A3 Y3
10 9 8
5 6
7