Denon AVR-2801/981

22
AVR-2801/981
1
22
11
20
19
18
17
16
15
14
13
12
9
8
7
5
6
1
21
LA3401
(TU: IC503)
22
VOL
REG
OSC
SYMMETRICAL
REOCTANCE
CIRCUIT
PHASE
COMPARATOR
VCO STOP
PILOT DET
FF
FF
FF
38kHz
FF
38kHz 90°
FF
19kHz 90°
MUTING
FM AM CHANGE
Ro
Rc
Rc
Rb
2
3
4
DECODER
MUTING CONTROL
FM AM CHANGE OVER
Vcc ON
MUTING
MUTING
OUTPUT
STEREO
SWITCH
TRIGGER
LAMP
DRIVER
Rb
10
11
15
SN74AHC157PW
(AU: IC804)
TC74VHC123AFT
(AU: IC801, 806)
TC74HC151AF
(CO: IC705)
TC74HCT157AF
(AU: IC805)
16
1
8
SN74AHC157PW
1A
1B
1Y
2A
2B
2Y
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Vcc
ST
4A
4B
4Y
3A
3B
3Y
SE
LECT
5
TC74VHC123AFT TC74HC151AF
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
5
D2
D1
D0
Y
W
S
D4
D5
D6
D7
A
B
C
3
2
1
0
Y
W
Strobe
GND
Vcc
4
5
6
7
A
B
C
Data
Inputs
Data
Select
Data
Inputs
Outputs
1
2
3
4
5
6
7
8
5
16
14
13
12
11
10
9
CLR
QQ
QQ
CLR
1A
1B
1CLR
1Q
2Q
2Cex1
2Rext/Cext
GND
Vcc
1Rex/Cext
1Cext
1Q
2Q
2CLR
2B
2A
SEL
1
23
4
5
6
7
8
9
10
11
12
13
14 15
16
17 18
19 20
21
22
23
24
25
26
27
28
29
303132
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1 DQ2 GND DQ3 DQ4 DQ5 DQ6
A14
A13
A8
A9
OE
DQ7
A12 A15 A16 NC VDD WE NC
A0 - A16
DQ0 - DQ7
CE
OE
WE
V
DD
GND
NC
A10
CE
A11
W29C020P-90 (AU: IC817)
Terminal Function
Name Function
Address input
Data in/output
Chip enable
Output enable
Write enable
Power terminal
GND
No connection
TC74HCT157AF
SELECT
INPUTS
1A
1B
OUTPUT
1Y
INPUTS
2A
2B
2Y
OUTPUT
GND
1
2
3
4
5
6
7
8
1A
1B
1Y
2A
2B
2Y
S
3Y
G
4A
4B
4Y
3A
3B
16
15
14
13
12
11
10
9
Vcc
STROBE
4A
4B
INPUTS
4Y
OUTPUT
3A
3B
INPUTS
3Y
OUTPUT
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
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