Denon AVR-1706 Service Manual page 21

QQ
3 7 63 1515 0
LH28F800BJE (IC805)
SN74LV573APW (IC818,819)
TE
L 13942296513
SN74LVC139APWR (IC820)
TC9273N (IC703)
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Vcc
20
OE 1
Q0
2 19
D0
3 18 Q1
D1
4 17 Q2
D2
16 Q3
D3 5
6 15 Q4
D4
14 Q5
D5 7
E
8
D6 13 Q6
D7 9 12 Q7 OE
GND 10
11 LE
1 16 V
1G
CC
2 15 2G
1A
G G
1B 3 14 2A
1Y0 4 13 2B
L
5 12 2Y0
1Y1
L
1Y2 6 11 2Y1
L
1Y3 7 10 2Y2
L
2Y3
GND 8 9
H
SN74LV14APW (IC829)
1A
1Y
2A
2Y
3A
3Y
GND
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2 9
8
D0 D1 D2 D3
2 3 4 6
D D D D
L
Q Q Q Q
L L L L
11
1
19 18 17
Q Q
Q0 Q1 Q2
3 6 7 1 3
FUNCTION TABLE
(each decoder/demultiplexer)
INPUTS
OUTPUTS OUTPUTS
SELECT
B A Y3 Y2
L L H H
L H H H
H L H L
H H L H
X X H H
1 Vcc
14
2
13 6A
3 6Y
12
4
11 5A
5
10 5Y
6 9 4A
7 8 4Y
.
21
AVR-1706/686/1506/486
9 4 2 8
D4 D5 D6 D7
5 7 8 9
D D D D
Q Q Q
Q
L L L L
16 15 14 13 12
Q3 Q4 Q5 Q6 Q7
1 5 0 5 8 2 9 9 4
Y1 Y0
H L
L H
H H
H H
H H
MM74HCT00MT (IC814,815)
1A 1
14
1B
2
13
1Y 3
12
2A 4
11
2B 5
10
2Y 6
9
GND
m 7
8
co
9 9
2 8 9 9
Vcc
4B
4A
4Y
3B
3A
3Y