Denon AVR-2801/981

26
AVR-2801/981
C9
TC9459N (EX: IC805~807)
L-LD2
9
L-ch7 to 91decoder
R-ch latch circuit
R-ch7 to 91decoder
10
19
NC
22
NC
3
2
4
5
6
7
8
11
12
13
14
28
27
26
25
24
23
21
20
18
17
16
15
1
NC
L-OUT
NC
L-IN
L-LD1
L-A-GND
NC
CS1
NC
GND
CK
V
SS
V
DD
NC
R-OUT
R-LD1
R-LD2
R-A-GND
NC
CS2
NC
STB
DATA
R-IN
50k
W
/
91S
TEP
VR
Same
as L-ch
L-ch latch circuit
Shift register (24Bit)
Level shift circuit
BU4052BC (PO: IC401)
(RE: IC371, 375)
16
1
8
1
2
V
EE
3
4
5
6
7
8
9
10
11
16
15
14
13
12
Y0
Y2
Y1
INH
Vss
V
DD
X2
X1
X0
A
B
LEVEL
CONVER
-TER
BINARY TO 1 of 4
DECODER WITH INHIBIT
13 X
3 Y
Y3 4
Y2 2
Y1 5
Y0 1
X3 11
X2 15
X1 14
X0 12
V
EE
7
B 9
INH 6
V
SS 8
A 10
V
DD
16
Y-COM
1
2
V
EE
3
4
5
6
7
8
9
10
11
16
15
14
13
12
Y1
Y0
Z
-COM
Z0
INH
Vss
V
DD
Y-COM
X-COM
X1
X0
C
A
B
Z1
Y3
X-COM
X3
BU4053BC (PO: IC403)
16
1
8
LEVEL
CONVER
-TER
BINARY TO 1 of 2
DECODER WITH INHIBIT
14 X
Z1 3
Z0 5
Y1 1
Y0 2
X1 13
X0 12
V
EE
7
B10
INH6
Vss8
A11
V
DD
16
15 Y
4 Z
TRUTH TABLE
INHIBIT A B O N SW ITCH
LL L X0 Y0
HL L X1 Y1
LL H X2 Y2
HL H X3 Y3
XHXNONE
X : d o n 't C a re
TRUTH TABLE
INHIBIT A B ON SW ITCH
LL L X0 Y0
HLL
LLH
HLH
XHXNONE
X : d o n 't C a re
LLL
HLL
LLH
HLH
C
L
L
H
H
X
L
L
H
H
Z0
X1 Y0 Z0
X0 Y1 Z0
X1 Y1 Z0
X0 Y0 Z1
X1 Y0 Z1
X0 Y1 Z1
X1 Y1 Z1
1
28
14
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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