Read Harman Kardon OMNI 20 Service Manual online
Harman Consumer Group
HARMAN INTERNATIONAL
Shenzhen, Guangdong, China
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B
DRAWING NO.
CREATED
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A
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C
D
A
B
C
1
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4
1
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CONTAINED THEREIN ARE PROPRIETARY AND ARE NOT TO BE REPRODUCED
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NAME
Cannot open file M:\02
Department\19
HCG_Engineering\Service\PC
B\Design_Template\Sch
template
(Altium)\untitled.bmp
700-XXXX-XXX
HK Omni 20
E
070-xxxx
8/1/2014
2A
Bias
Bias
Bias
25V
C923
10PF
12V_Limit
Bias
Bias
R933
open
A
M
P_
B
IA
S_
IN
1
1
D
_B
IA
S_
1
2
IN
1+
3
IN
1-
4
O
U
T1
5
V
-
6
B
U
FF
ER_
IN
1
7
B
U
FF
ER_
O
U
T1
8
B
U
FF
ER_
O
U
T2
9
B
U
FF
ER_
IN
2
10
V
+
11
O
U
T2
12
IN
2-
13
IN
2+
14
D
_B
IA
S_
2
15
A
M
P_
B
IA
S_
IN
2
16
U901
LM13700M
12V_Limit
25V
C917
1UF
25V
C918
1UF
25V
C922
1UF
25V
C914
1UF
1%
R913
100K
1%
R910
49.9K
R
L
1
3
2
Q900
2SC2712
+
16V
C920
33UF
+
16V
C921
47UF
D900
1N4148_DL4148
D901
1N4148_DL4148
12V_Limit
1%
R921
90.9K OHM
1%
R920
10.0K
1%
R927
11.0K OHM
Feedback
1%
R928
24.9K OHM
AMP_Woofer_L+
AMP_Woofer_L-
R901
10.0K
R902
10.0K
R900
10.0K
C900
100PF
12V_Limit
R904
10.0K
C906 47PF
Limiter_In_L
Bias
AMP_Woofer_R+
AMP_Woofer_R-
R907
10.0K
R908
10.0K
R906
10.0K
C911
100PF
R909
10.0K
C913 47PF
Limiter_In_R
1%
R937
2.21K
Limiter_L_out
Limiter_In_L
Limiter_In_R
Limiter_R_out
6.3V
C901 10UF
6.3V
C912 10UF
6.3V
C916 10UF
6.3V
C919 10UF
12V_Limit
R925
open
1%
R935
10.0K
R930
10.0K
R916
10.0K
1%
R936
49.9K
1%
R934
49.9K
1%
R911
49.9K
1%
R919
100K
1%
R923
100K
1%
R932
100K
R917
10.0K
R926
10.0K
R918
10.0K
R924
10.0K
R914
10.0K
R931
10.0K
25V
C915
10PF
1%
R938
2.21K
R912
open
Bias
12V
+
16V
C910
100UF
1%
R903
1K
1%
R905
1K
C907
100NF
16V
C902
100NF
16V
C903
100NF
16V
C904
100NF
16V
C905
100NF
C909
100NF
AMP_SDZ
Mute_AMP
Limiter_R_out
GND
L958
1K @ 100MHz
C956
open
open
C957
open
open
C951
open
open
C950
open
open
C952
open
open
Limiter_L_out
C954 open
C955
open
open
AMP_Tweeter_R-
AMP_Tweeter_R+
AMP_Tweeter_L-
AMP_Tweeter_L+
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CON901
FF
C
0
.5B
-1
5P
B
X
(W
)
L950
1K @ 100MHz
L951
1K @ 100MHz
L952
1K @ 100MHz
L953
1K @ 100MHz
L954
1K @ 100MHz
L955
1K @ 100MHz
L956
1K @ 100MHz
L957
1K @ 100MHz
1
2
3
A
8
4
VEE
VCC
U900A
BA4580RFVM
7
5
6
B
U900B
BA4580RFVM
7
5
6
B
U904B
BA4580RFVM
1
2
3
A
8
4
VEE
VCC
U904A
BA4580RFVM
1
2
3
A
8
4
VEE
VCC
U903A
BA4580RFVM
7
5
6
B
U903B
BA4580RFVM
1
2
3
A
8
4
VEE
VC
C
U902A
BA4580RFVM
7
5
6
B
U902B
BA4580RFVM
L959
1K @ 100MHz
Feedback
C958
open
open
Rev A to B
Changed R929 from 10K to 11K
R929
11K
R915
11K
Changed R915 from 10K to 11K
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
L960
1K @ 100MHz
Add L960
TP901
TP902
TP903
TP904
TP905
TP906
TP907
TP908
TP909
TP910
TP911
Added C924,C925,C926,C927,C928,C929 5.6P
Rev B to C
Changed C908 from 100N to 5.6P
Added L961,L962
Added L961,L962
C927
5.6P
C926
5.6P
C925
5.6P
GND
C924
5.6P
GND
GND
GND
C929
5.6P
GND
C928
5.6P
GND
L961
1K @ 100MHz
GND
1%
R940
0 OHM
+
16V
C930
100UF
12V_Limit
Added R940 0R ,C930 100uF
C953
open
GND
L962
1K @ 100MHz
GND
C908
5.6P
Rev C to D
No any changes
1%
R922
220 OHM
Rev D to E
Change R922 package from 0402 to 0603
Page 28 of 31
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