Read Harman Kardon AVR 85 (serv.man3) Service Manual online
6 8
Harman Kardon
Dolby Digital Audio/Video Receiver
AVR75/85
INTEGRATED CIRCUIT DIAGRAMS 8
1
1
1
2
2
2
3
3
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
9
9
9
10
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
11
20
20
12
21
21
13
22
22
14
23
23
15
24
24
16
25
25
17
26
26
18
27
27
19
28
28
20
A14
A12
A12
A7
A6
A5
A4
A3
A2
A6
A5
A4
A3
A2
A1
A0
I/O 0
I/O 1
I/O 2
GND
VCC
VDD
R1
R2
R-COM1
R3
R4
R-COM2
R5
R6
R-COM3
R7
R-COM4
DATA
CK
R2
R-COM1
R3
R4
R-COM2
R5
R6
R-COM3
R7
R-COM4
DATA
CK
VCC
DE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
WE
A13
A8
A9
A11
OE
A10
CE
I/O 7
I/O 6
I/O 5
A13
A8
A9
A11
OE
A10
CE
I/O 7
I/O 6
I/O 5
I/O 3
I/O 4
QM10 - 8X32 SRAM
QC11 - NJU7311L
ANALOG SWITCH
Q652 - 74HC541
3-STATE BUFFER/
LINE DRIVER
Q605 - 74HC74
DUAL D-TYPE FLIP-FLOP
Q607, 608 - 74HC164E
8-BIT SERIAL-IN/PARALLEL-OUT
SHIFT REGISTER
QF01 - NJM2058
QUAD OP-AMP
Q604 - 74HC157A
QUAD 2-INPUT MULTIPLEXER
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
7
7
7
7
8
14
14
14
16
13
13
13
15
12
12
12
14
11
11
11
13
10
10
10
12
9
9
9
11
8
8
8
10
9
VCC
VCC
VCC
1RD
DSA
S
DSB
1I0
Q0
1I1
Q7
E
Q1
1Y
Q6
4I0
Q2
2I0
Q5
4I1
3I0
3I1
3I1
Q3
2I1
Q4
4Y
GND
2Y
GND
2RD
2SD
1SD
1D
1CP
1Q
1Q
1Q
GND
2D
2CP
2CP
2Q
2Q
2Q
MR
CP
CP
3Y
1
2
3
4
5
6
7
2
3
4
5
6
7
1
2
3
4
5
6
7
2
3
4
5
6
7
14
13
12
13
12
11
10
9
8
8
14
13
12
13
12
11
10
9
8
8
QT04 - 74LS132
QUAD 2-INPUT NAND
SCHMITT TRIGGER
QR02 - TC74CH00AP
QUAD 2-INPUT NAND GATE
VCC
A2
B2
02
A3
B3
03
A2
B2
02
A3
B3
03
A0
B0
B0
O0
A1
B1
B1
01
GND
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND
VCC
4B
4A
4Y
3B
3A
3Y
4B
4A
4Y
3B
3A
3Y
OUTPUT 1
-INPUT 1
+INPUT 1
+V
+INPUT 2
-INPUT 2
OUTPUT 2
OUTPUT 4
-INPUT 4
+INPUT 4
-V
+INPUT 3
-INPUT 3
OUTPUT 3
VEE
L1
L2
L2
L-COM1
L3
L4
L4
L-COM2
L5
L6
L6
L-COM3
L7
L-COM4
ST
VSS
DE1
A1
A2
A3
A4
A5
A6
A7
A8
A2
A3
A4
A5
A6
A7
A8
GND
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