Read Harman Kardon HK 3700 Service Manual online
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HK37X0 SMPS SCHEMATIC DIAGRAM
DRAWING NO
(SMPS)
12610SCMZ
HK37X0
SCHEMATIC DIAGRAM
7
6
5
4
3
2
1
REVISION
1
1
27
26
SHEET
MODEL
X.X.X
CHECK
APPROVE
DESIGN
ISSUE
ANAM
MULTI. LAB
2013.07.22
**IMPORTANT SAFETY NOTICE.
IMPORTANT FOR SAFETY. WHEN REPLACING ANY OF THESE COMPONENTS.
USE ONLY MANUFACTUREY'S SPECIFIED PARTS.
**THE UNIT OF RESISTANCE IS OHM. K=1000 OHM, M=1000 KOHM
**THE UNIT OF CAPACITANCE IS MICROFARAD (uF)pF=10 uF
**THIS SCHEMATIC DIAGRAM MAY MODIFIED AT ANY TIME WITH THE
**THIS SCHEMATIC DIAGRAM MAY MODIFIED AT ANY TIME WITH THE
IMPROVEMENT OF PERFORMANCE
COMPONENTS IDENTIFIED BY MARK HAVE SPECIAL CHARACTERISTICS.
-6
MP
L
N
13.07.22
X.X.X
Y.W.Y
HEAT SINK
13.07.22
13.07.22
(60V/3A)
(60V/1A)
CS
Drain
GND
GND
VDD
VDDG
FB
Drain
HS92
DGND
(400V/2A)
(400V/2A)
VCC(-)
(400V/20A)
(400V/20A)
VCC(+)
HEAT SINK
HEAT SINK
100V : T 8A H
250V
230V : T 6.
3A H
250V
HEAT SINK
HEAT SINK
HS93
DGND
POWER_HI
AMP_VCC_ON
POWER_DOWN
ST+5V
D+7V
D+7V
ST+5V
-12V
AGND
+12V
VOL_SEL_3
DGND
VOL_SEL_1
VOL_SEL_2
+38V
GND
DGND
ST+5V
-12V
AGND
+12V
100V : 75K
230V : 150K
100V : Used
230V : Not used
230V : Not used
F901
HEAT SINK
For IC97
3770 : H->L 46V
3770 : H->L 39V
HEAT SINK
For IC97
HEAT SINK
For Q904
(60V/3A)
3770 : H->L 30V
3700 : H->L 39V
3700 : H->L 33V
3700 : H->L 27V
Division : C930
3770 : 250V 270uF
3700 : 250V 220uF
3700 : 250V 220uF
3770 : 450V 150uF
3700 : 450V 120uF
3700 : 450V 120uF
Division : C901
3770 : 250V 270uF
3700 : 250V 220uF
3700 : 250V 220uF
3770 : JUMPER
3700 : JUMPER
3700 : JUMPER
USA
EUR
USA
EUR
ADD : Tube (5PIE*20mm)
Div
is
io
n : C
Y9
5
3770 :
400V
102 M
3700 :
400V
102 M
3770 :
400V
471 M
3700 :
400V
471 M
USA
EUR
Division : CY91
3770 : 400V 152 M
3700 : 400V 152 M
3700 : 400V 152 M
3770 : 400V 102 M
3700 : 400V 152 M
3700 : 400V 152 M
USA
EUR
Division : CY92
3770 : 400V 152 M
3700 : 400V 152 M
3700 : 400V 152 M
3770 : 400V 102 M
3700 : 400V 152 M
3700 : 400V 152 M
USA
EUR
Division : CY96
3770 : JUMPER
3700 : 400V 152 M
3770 : JUMPER
3700 : 400V 152 M
USA
EUR
Division : CY93
3770 : 400V 102 M
3700 : 400V 102 M
3700 : 400V 102 M
3770 : 400V 102 M
3700 : 400V 102 M
3700 : 400V 102 M
USA
EUR
Division : CY94
3770 : 400V 102 M
3700 : 400V 102 M
3700 : 400V 102 M
3770 : 400V 471 M
3700 : 400V 102 M
3700 : 400V 102 M
USA
EUR
1
2
CN90
YW396-03AV
TH91
DSC-2.5D20
VT
91
14D
-561K
CX9
2
275V
334 K
CX9
1
275V
224 K
CY9
2
400V
152 M
CY9
1
400V
152 M
C910
1KV 222 K
D906
US1M
US1M
D909
MM1Z20
R
906
39
R915
68K
R913
0R1 1W
R910 33
R912
1K1
D907
1N4448W
D904
US1M
C
905
1KV
102 K
D903
US1M
US1M
1
2
3
4
PC93
EL357NB
R
955
56KF
1
3
4
2
DB91
RS1005M
R
917
Not
u
sed
R
916
15K
R907
68K 1W
R
920
68K 2W
C
912
1KV
470 J
C
908
Not
u
sed
R914
0R1 1W
C
907
50V
47 J
R901
3K9
R918
20K
C909
50V 821 J
R
943
6K2
R944
4K7
R
953
11K3F
R
941
6K2
R948
0 ohm
C917
50V 102 K
R
908
0R
6 1W
R909
100K
D916
MM1Z12
R951
Not used
Not used
R956
47K
47K
R958
10KF
10KF
R959
5K6F
5K6F
R954
4K7
1
2
3
4
PC94
EL357NB
D917
MM1Z18
MM1Z18
R945
560
R
949
Not
u
sed
R
960
7K5 1W
D915
Not used
C904
50V 105 K
R
904
0 oh
m
1
2
3
4
PC95
EL817B
D913
S1M
S1M
D911
US1M
CY93
400V 102 M
C
918
50V
10u
F
C
929
6.3V
470u
F
D921
11EQ06
1
2
3
4
5
6
7
8
9
10
TF91 EE1625
1
2
3
4
PC92
EL357NB
R934
560
R946
10KF
10KF
R947
10KF
10KF
R942
2K2
R938
560
C
911
1KV
102 K
D910
UF4007
1
2
3
4
5
6
7
8
IC91
OB2358L
R923
1K
C914
50V 472 K
D901
S1M
D902
S1M
C902
450V 22uF
R922
10
R
924
1.2M
R925
1.2M
R929
1.2M
R932
4R7
D914
MM1Z20
C924
50V 222 K
R
952
100 1W
D
927
1N4448W
1
2
3
4
PC91
EL357NB
D
926
1N4448W
R937
1K
C920
50V 47uF
D908
MM1Z24
1
2
3
Q902
A708Y
D
919
1N4007
R936
1K
C921
50V 22uF
D918
MM1Z20
1
2
3
Q903
A708Y
D920
FFM107
R
935
0 oh
m
R961
10K
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
ET91
CJT1A026
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
ET92
CJT1A026
C
937
63V
470u
F
C
928
63V
2200u
F
L921
6mm
C944
6.3V 1000uF
R964
Not used
J903
7.5mm
J905
12.5mm
R966
22
J906
20mm
J910
15mm
J904
12.5mm
BD91
3512
J928
10mm
R
968
0 oh
m
J935
15mm
J932
10mm
R967
10
J911
7.5mm
R969
0 ohm
D
912
MM1Z
27
D
928
20V
1/2W
D933
SF26
R
974
150K
R
975
150K
R
976
150K
D932
S1M
S1M
D937
SF26
1
2
3
4
LF93
RING-616/120uH Min
R972
10
R970
10
R971
10
R
979
470K
R
980
470K
R
981
470K
R
982
470K
R911
0 ohm
J915
10mm
J936
12.5mm
J917
6mm
2
1
TS91
Not used
R984
47
C915
50V 105 K
F901
1
3
2
4
LF91
SQE2930/8mH
1
32
4
LF92
SQE2930/8mH
J938
Not used
C
901
250V
270u
F
C
930
250V
270u
F
R903
47 2W
1
2
3
Q901
17N80C
3
C
936
63V
2200u
F
C
939
63V
470u
F
R
993
7K5 1W
D950
MM1Z22
C941
10V 5600uF
C
943
10V
1000u
F
R
921
56KF
D943
UF4004
C949
100V 10uF
100V 10uF
R991
1K
R940
15K
R
950
220K
D944
US1M
R
977
68KF
L924
1.8uH
L928
1.8uH
D942
FCU20A40
D952
FCU20A40
3
2
1
CN20
2
1
HS92
1
2
3
Q909
RT1N141C
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
ET95
CJT1A026
2
1
HS93
J901
12.5mm
J907
15mm
J908
10mm
J918
10mm
J919
10mm
J941
6m
m
1
2
3
IC94
KA431SAMF2
1
2
3
IC95
KA431SAMF2
J943
10mm
1
2
3
IC96
KA431SAMF2
KA431SAMF2
J947
7.5mm
J914
10mm
J931
10mm
CY94
400V 102 M
R986
560
1
2
3
4
PC96
EL357NB
1
2
3
Q915
RT1N141C
D
935
1N4448W
R996
47
R997
56KF
3
2
1
IC97
7812A
C925
104
D
924
1N4448W
C932
50V 47uF
D922
1N4448W
C
953
25V
100u
F
C
955
50V
22u
F
2
1
3
IC98
7912A
7912A
C926
104
104
D
925
1N4448W
D936
1N4448W
D939
31DQ06-FC5
D938
31DQ06-FC5
D934
Not used
J923
10mm
J926
12.5mm
J929
10mm
J948
20mm
1
2
3
Q916
RT1N141C
R
939 47
C956
1KV 102 K
C957
1KV 102 K
R
978
220 1W
R
973
220 1W
C
922
Not
u
sed
R928
10
BD95
Not used
J930
17.5mm
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
ET93
CJT1A026
1
2
3
4
PC97
EL817B
R930
37K4F
R933
180
R999
56KF
RX9
4
Not
u
sed
RX9
5
Not
u
sed
1
2
3
4
PC98
EL817B
R957
180
R962
43KF
3
2
1
IC99
78L24
D
929
MM1Z
12
C923
104
1
2
3
4
5
6
7
98
10
11
12
13
14
15
BN65
7
6
5
4
3
2
1
1
2
3
4
5
6
7
CN66
J949
20m
m
R
992
0 oh
m
R963
0 ohm
L922
100MHz_60ohm_6A
L923
100MHz_60ohm_6A
J950
7.5mm
C
945
104 C958
103
C
959
104 C960
103
C
961
104 C962
103
C
963
104 C964
103
C
967
104 C968
103
C
969
224
C
971
224
C
973
224
C
975
224
L925
7uH
J955
6mm
2
1
TS92
110 /70mm
℃
C
978
104
C
977 104
C
979
104
R
983
Not
u
sed
R987
Not used
C
933
25V
470u
F
R988
0 ohm
R
919
10K
CY95
400V 102 M
400V 102 M
J937 7.5m
m
C981
Not used
C982
Not used
R
994
360 1W
R
995
360 1W
RX9
3
1.5M
RX9
1
Not
u
sed
RX9
2
Not
u
sed
J962
10mm
J961
10mm
1
BL
2
ZC
3
FB
4 CS
5
VINS
6 GATE
7
VCC
8
GND
IC93
ICE2QS02G
R931
820K
820K
C
913
25V
225 K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TF92
EE2525
R990
10 1W
J902
20mm
J912
15mm
J913
15mm
J925
20mm
HS94
J922
7.5mm
J933
7.5mm
1
2
3
4
5
6
1
2
3
4
5
6
HS91
1
2
3
Q914
A708Y
A708Y
R985
1K8
R989
1K8
J916
10mm
VT
92
14D
-561K
C
919
1KV
470 J
CY96
400V 152 M
C
983
Not
u
sed
C
984
6.3V
470u
F
R
965
Not
u
sed
R
998
Not
u
sed
D905
Not used
Not used
12
PC99-A
EL357NB
34
PC99-B
EL357NB
EL357NB
D
951
MM1Z
22
R891
1K
1
2
3
Q917
RT1N141C
R894 47
1
2
3
Q918
RT1N141C
R892
1K
D953 1N4448W
6 GATE
5
VDD
4 SENSE
3
RI
2
FB
1
GND
IC92
OB2263MP
OB2263MP
1
2
3
Q
904
10N65KL
-TF3-T
R893
47
R896
470
D
923
1N4448W
R897
15K
R
898
22
D
930
MM1Z
27
C903
50V 471 J
1
2
3
Q926
2SC6046
1
2
3
Q921
2907AS
R881
100
12
CN
91
YW
396-03A
V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
TF93
ER5345V
R778
0R01 J 5W
J927
12.5mm
R
779
0 oh
m
J920
20mm
J921
12.5mm
R777
0 ohm
R776
0 ohm
L929
1.8uH
L930
1.8uH
J934
6mm
J939
17.5mm
J940
10mm
HS95
J944
12.5mm
J945
12.5m
m
HS96
J942
17.5mm
C
931
Not
u
sed
D
931
MM1Z
22
R775 0 ohm
1
2
R
926
1.2M
1
2
R927
1.2M
1
2
2
C
906
50V
222 K
C934
50V 105 K
C
927
50V
105 K
1
2
R
902 15K
1
2
3
4
PC89
EL817B
R774
180
R773
1K8
D
954
MM1Z
22
12
PC90-A
EL357NB
34
PC90-B
EL357NB
EL357NB
R772
1K
1
2
3
Q928
RT1N141C
R770
47
1
2
3
Q927
RT1N141C
R771
1K
D955
1N4448W
R768
30KF
R767
Not used
R766 0 ohm
J963
20mm
J964
12.5m
m
J966
10mm
J965
15m
m
CY97
Not used
PG91 PG92
J967 7.5m
m
R765
1R5 1W
PGND
+BV
AC-
L
AC-
N
AC-L
AC-N
+BV
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
DGND
DGND
PGND
PGND
PGND
PGND
CHGND
DGND
DGND
DGND
DGND
DGND
DGND
PGND
PGND
PGND
DGND
PGND
DGND
S5V
S5V
PC1
PC1
DGND
VKK
DGND
DGND
DGND
PGND
DGND
DGND
DGND
DGND
AC-
N
PGND
PGND
PGND
DGND
7VD
PC2
7V
D
PGND
DGND
PC2
7VD
DGND
DGND
ST
5V
DGND
VOL_SEL_1A
VOL_SEL_2
DGND
VKK
ST5V
+12V
-12V
D+7V
ST5V
+12V
-12V
VOL_SEL_2
AC-
L
+12V
-12V
DGND
DGND
DGND
DGND
DGND
DGND
CHGND
PGND
PGND
+BV
DGND
DGND
DGND
CHGND
DGND
VOL_SEL_1
7V
D
7V
D
G
G
DGND
PGND
DGND
DGND
DGND
DGND
VOL_SEL_3
DGND
DGND
D+
7V
VOL_SEL_3
VOL_SEL_2
VOL_SEL_1
VO
L_
SEL_
1A
+BV
+BV
Harman Kardon
HK 3700 Service Manual
Page 102 of 109
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