Harman Kardon AVR 75 (serv.man2) Service Manual ▷ View online
7 1
Harman Kardon
Dolby Digital Audio/Video Receiver
AVR75/85
INTEGRATED CIRCUIT DIAGRAMS 11
6
4
3
2
1
24
23
22 21
20
19
14
13
12
11
10
9
8
5
7
7
BPF
LPF
LPF
LPF
LPF
LEVEL
-DET
LEVEL-DET
CLOCK
RECOVERY
D-PLL
LPF
DIV
VCO
AGC
IN
PUT
LPF
BPF
LOGIC
LOGIC
ARI-DK DET
VCC
BI-PHASE DEMOD.
DFF
DFF
E-OR
DIFF. DECODE
AND
SK-ID
DK-ID
SK-ADJ.
RDS-ID
DATA
CLK
18
17
16
15
15
QD02, 32, 52, QM08 -
4560M OP-AMP
Q301, QE01-03, QC01-10, QE07-12, QC12, QL91, QS01-03,
QW01, QS13, QS51-54, QF02, 03, QG55, 56 NJM4558DD - OP-AMP
NJM
QM04 - MC14577C
VIDEO AMP
Q609 - TCW125FU
DUAL BUS BUFFER
QK02, QK03 - NJM2115M
OP-AMP
QW01 - NJM2115M
DUAL OP-AMP
V+
B OUTPUT
B -INPUT
B +INPUT
V-
A +INPUT
A -INPUT
A OUTPUT
A
B
1
5
2
6
3
7
8
4
1
1
1
2
2
2
3
3
3
4
4
4
8
8
8
7
7
7
6
6
6
5
5
5
A
A
B
B
-
-
-
-
+
+
+
+
B OUTPUT
B OUTPUT
A OUTPUT
A OUTPUT
B -INPUT
B -INPUT
A -INPUT
A -INPUT
B +INPUT
A +INPUT
V
-
VSS
V
+
VDD
V+
V+
B OUTPUT
B OUTPUT
B -INPUT
B -INPUT
B +INPUT
B +INPUT
V-
V-
A +INPUT
A +INPUT
A -INPUT
A -INPUT
A OUTPUT
A OUTPUT
A
A
B
B
8
8
1
1
7
7
2
2
6
6
3
3
5
5
4
4
Q901 - LA2232 RDS MODULATOR
VCC G2
Y1
A2
G1
A1
Y2
GND
7 2
Harman Kardon
Dolby Digital Audio/Video Receiver
AVR75/85
AVR75/85 WIRING DIAGRAM (120V & 230V)
AVR75/85 120V and 230V Wiring Connection
E
E
D
D
C
C
B
B
A
A
7
7
6
6
5
5
4
4
3
3
2
2
1
1
7 3
Harman Kardon
Dolby Digital Audio/Video Receiver
AVR75/85
AVR75 (120V) SCHEMATIC DIAGRAM 1 of 8 (FRONT PCB PU04, MASTER VOLUME PCB PU54, AUX IN PL94)
AVR75 US 120V
Schematic 1 of 8
H
G
F
F
G
H
E
D
C
B
A
A
B
C
D
E
L
M
K
J
I
L
M
I
J
K
0.0
0.0
0.0
0.0
0.0
0.0
0
0
4.9
4.9
0.6
0
0
0
0
0
21.0
20.3
5.5
4.8
5.5
1.2
0.6
0 0 5.0 5.0 0.2
0 0
5.0 5.0
0
4.8
0
5.5
4.9
0.3
0
4.9
5.5
5.5
0
5.5
5.4
0.4
0
5.5
0
4.9
-28
-34
0.6
0.6
0
0
0
0
0
1.2
4.9
0
0
4.9
0
0
4.7
0
0
0
1.1
0
-30 -26 -28 -30 -30 -33 -33 -30 -33 -33 -33 -30 -33 -28 -30
1.1 4.9 0.5 4.8 4.8 4.8 4.9
4.8
4.9 4.7 2.7 2.7
5.5
0
4.9 4.9 4.9
0.2 4.9 4.9 4.9
TEST VOLTAGES SHOWN IN RED
FROM JB04
(PB04)
AVR75/85 PAGE 73 - 1 of 2
AVR75/85 PAGE 73 - 2 of 2
7 4
Harman Kardon
Dolby Digital Audio/Video Receiver
AVR75/85
AVR75 (120V) SCHEMATIC DIAGRAM 2 of 8 (TUNER PCB P104)
AVR75 US 120V
Schematic 2 of 8
H
G
F
F
G
H
E
D
C
B
A
A
B
C
D
E
L
M
K
J
I
L
M
I
J
K
0
0 0
0
1.5
10.8
8.5
2.1
13.3
1.4
6.9
1.6 3.6 5.4 5.4
2.8 1.5
3.6 3.6
6.9 6.9
1.1
5.5 5.9
1.5
0.2
14.2
0.1
5.3
2.3
1.1
2.5
0.1
0.7
0
0.8
4.8
2.3
0
0.6 0.6
0 0
4.8
TEST VOLTAGES SHOWN IN RED
ANTENNA TERMINAL
AVR75/85 PAGE 74 - 1 of 2
AVR75/85 PAGE 74 - 2 of 2
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