Read Harman Kardon AVR 85 (serv.man3) Service Manual online
6 9
Harman Kardon
Dolby Digital Audio/Video Receiver
AVR75/85
INTEGRATED CIRCUIT DIAGRAMS 9
BIAS
1
8
2
7
3
6
4
5
BUFFER
GND
V out
V+
NC
V in 1
CTL
V in 2
NC
1
2
3
5
7
4
6
9
8
SERIAL/PARALLEL
CONVERTER
SERIAL/PARALLEL
CONVERTER
ERROR CHECK
SYNCHRONISM
CHECK
OSCILLATOR
SYSTEM CONTROL
SYNCHRONISM
A, B, C, C', D
OSC2
CORRECTION
ERROR
CORR.
SEL
CD.S.CONTROL
OSC1
VSS3
VSS2
VSS1
VDD
RES
CL.ED.SEL
DATA OUT
CLOCK OUT
DATA START
DATA IN
CLOCK IN
RECEIVE
QY10 - TC9173
PORT EXPANDER
QY11 - TC9174P
PORT EXPANDER
Q902 - LC7073 RDS ERROR MODULATOR
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
16
16
15
15
14
14
13
13
12
12
11
11
10
10
9
9
VDD
STB
CK
SI
SO
I/O-10
I/O-9
I/O-8
STB
CK
SI
SO
I/O-10
I/O-9
I/O-8
VDD
STB
CK
SI
SO
OP-10
OP-9
OP-8
STB
CK
SI
SO
OP-10
OP-9
OP-8
GND
I/O-1
I/O-2
I/O-3
I/O-4
I/O-5
I/O-6
I/O-7
I/O-1
I/O-2
I/O-3
I/O-4
I/O-5
I/O-6
I/O-7
GND
OP-1
OP-2
OP-3
OP-4
OP-5
OP-6
OP-7
OP-2
OP-3
OP-4
OP-5
OP-6
OP-7
Level Shift
Shift Register
Latch
Control
L1
L2
L3
L2
L3
LCOM1
S
COM3
IN6
COM2
IN5
IN4
IN5
IN4
DI
CL
CE
QL01, QL51, QL52 - LC7824
ANALOG SWITCH
QN84 - TA7317P OVERLOAD PROTECTOR
QL04, QL05 - NJM2233D
VIDEO AMP
SW5
SW4
SW4
SW1
SW2
SW3
SW2
SW3
SW7
SW6
Click on the first or last page to see other AVR 85 (serv.man3) service manuals if exist.