Denon AVR-2802 Service Manual page 24

BU4052BCF (AU:IC255,509,510)
TOP VIEW
Y V
4 1 16 DD
Y
0 X
Y 2 Y 15 X
2 2 2
2
Common
Y
14 X
3 X 1
1
OUT/IN
Y
Common
X
Y 4 13
3 Y
3
OUT/IN
X
X
Y 5 X
1 Y 0 12 0
1
INH 6 X 11 X
INH 3
3
A
V 7 10 A
EE V
EE
B
8
Vss 9 B
SN74AHC574PW
(AU: IC815, 816)
20
Vcc
OE 1
1D 19 1Q
2
2D 18 2Q
3
17 3Q
3D 4
16 4Q
4D 5
5D 15 5Q
6
6D 14 6Q
7
13 7Q
7D 8
12 8Q
8D 9
10 11
CK
GND
BU4051BCF
(AU:IC251,252,504~507)
X V
4 1 16 DD
4
X 2 6 15 X
6 2 2
Common
X 14 X
3 OUT/IN 1 1
OUT/IN
13
X 4 7 X
7 0 0
X 5 X
5 5 3 12 3
INHIBIT 6 A
INH 11
A
V 7 10 B
EE V B
EE
C 2Rext/Cext
Vss 8 9 C
SN74LV00APW
(AU: IC807)
1A 1
14 Vcc
1B 2
13 4B
1Y 3 4A
12
2A 4 4Y
11
2B 5 3B
10
6
2Y 9
3A
GND
7
8 3Y
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FUNCTION TABLE
INH A B ON SWITCH
L
L L X Y
0 0
L X Y
H L
1 1
L L H X Y
2 2
L H H X Y
3 3
H X X NONE
X:Don't Care
logic symbol
1
EN
CE
11
CLK C1
2
1D
1D
3
2D
4
3D
5
4D
6
5D
7
6D
8
7D
9
8D
TC74VHC123AF
(AU: IC801)
1A 1 Vcc
16
1B 15 1Rex/Cext
2
CLR
1CLR 3 14 1Cext
QQ
1Q 4 13 1Q
2Q 5 5 12 2Q
QQ
2Cex1 6 CLR 2CLR
11
7 2B
10
GND 9 2A
8
SN74LV14APW
(AU: IC809)
1 Vcc
1A 14
2
1Y
13 6A
2A
3 6Y
12
4
2Y 5A
11
3A 5
10 5Y
3Y 6 9 4A
GND 7 4Y
8
AT49LV002T (AU:IC817)
TOP VIEW
RESET
1 VCC
32
A16 WE
2
31
A15 A17
3 30
A12
4 A14
29
A7 A13
5
28
A6 A8
6
27
A5
7 A9
26
A4
8 A11
25
A3 OE
9
24
A2
A10
10 23
A1
11 CE
22
A0 I/O 7
12
21
I/O 0
I/O 6
13 20
I/O 1
14 I/O 5
19
I/O 2 I/O 4
15
18
GND I/O 3
16
17
SN74HC151NS (EX:IC505,506)
3 1
2 2
Data D2
19
Inputs
1Q 1 3
D1
18
2Q
0
D0
4
17
3Q
Y 5 5
Y
16 Outputs
4Q
W
6 W
15
5Q
14 Strobe 7 S
C
6Q
13
GND 8
7Q
12
8Q
74LVX157
(AU: IC804)
SE LECT 1 16
Vcc
SEL
1A 2 15
ST
1B 3 14
4A
13
1Y 4 4B
5 5 12
2A 4Y
2B 6 11 3A
2Y 7 10
3B
8 9
GND 3Y
SN74LV4040APW
(AU: IC813)
OL Vcc
1 16
OL
OF 2 15 OK
OF OK
OE 14 OJ
3
OE OJ
OG 13 OH
4 OG OH
OD 5 OI
OD OI 12
OC 6 11 CLR
OC CLR
7
OB 10 CLK
OB CLK
OA
Outputs
8
GND 9
OA
AVR-2802/982
FUNCTION TABLE
Pin Name Function
A0 - A17
Addresses
CE Chip Enable
Output Enable
OE
WE Write Enable
RESET
RESET
I/O0 -I/O7 Data Inputs/Outputs
DC Don't Connect
16
Vcc
15 4
D4
14 5
D5 Data
Inputs
6
D6 13
12 7
D7
A
A 11
Data
B 10 B
Select
9 C
TC74HCU04AF
(EX:IC504)
1
1A
14 Vcc
2
13
6A
1Y
3
2A 12 6Y
4
2Y 11
5A
5
3A 10 5Y
6 9 4A
3Y
GND
7 8 4Y
TC74HCT7007AF
(AU:IC823)
1A
1
14
Vcc
1Y 2
13
6A
2A 3
12 6Y
2Y
4
11
5A
3A
5 5Y
10
3Y
6 9 4A
7 8
GND 4Y
24