KENWOOD SW-32HT Service Manual

Cover page of KENWOOD SW-32HT Service Manual

Service Manual for KENWOOD SW-32HT, downloadable as a PDF file.

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SPECIFICATIONS
Type .......................................... Subwoofer system with built-in
amplifier
[Amplifier]
100 watts RMS, at 4
, from 20 Hz to 200 Hz with no more
than 0.09 % total harmonic distortion.
Input Sensitivity & Input Impedance
.............................................. 200 mV (12 k
)
Supply Voltage ....................... U.S.A. and Canada
AC 120 V
Other countries AC 110 V - 120 V/ AC 220 V - 240 V
Rated Power Consumption .. 160 W
[Speaker]
Enclosure ................................. Bass-Reflex, Floor Standing
Type
Speaker Units ......................... 200 mm (8") Cone type
Nominal Impedance .............. 4
Dimensions .............................. Width : 300 mm (11-13/16")
Height : 333 mm (13-1/8")
Depth : 483 mm (19")
Net Weight .............................. 15 kg (33.1 lb)
Supplied Accessories ............ Pin-plug cord
× 1
.................................................... Pads
(
× 4)
NOTE: DO NOT REMOVE THE GRILLE.
Note:
KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.
POWERED SUBWOOFER
SW-32HT
SERVICE MANUAL
© 1998-5/B51-5430-00 (K/K) 1416
* Refer to parts list on page 7.
Push knob
(K27-0211-08)
AC power cord*
(E30-)
Power switch
(S66-0203-08)
Voltage selector*
(S62-0208-08)
Grille assy
(B06-1257-08)
Knob
(K29-0580-08)x2
1p 98.12.129:12 y[W 1
background image
SPECIFICATIONS
Type .......................................... Subwoofer system with built-in
amplifier
[Amplifier]
100 watts RMS, at 4
, from 20 Hz to 200 Hz with no more
than 0.09 % total harmonic distortion.
Input Sensitivity & Input Impedance
.............................................. 200 mV (12 k
)
Supply Voltage ....................... U.S.A. and Canada
AC 120 V
Other countries AC 110 V - 120 V/ AC 220 V - 240 V
Rated Power Consumption .. 160 W
[Speaker]
Enclosure ................................. Bass-Reflex, Floor Standing
Type
Speaker Units ......................... 200 mm (8") Cone type
Nominal Impedance .............. 4
Dimensions .............................. Width : 300 mm (11-13/16")
Height : 333 mm (13-1/8")
Depth : 483 mm (19")
Net Weight .............................. 15 kg (33.1 lb)
Supplied Accessories ............ Pin-plug cord
× 1
.................................................... Pads
(
× 4)
NOTE: DO NOT REMOVE THE GRILLE.
Note:
KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.
POWERED SUBWOOFER
SW-32HT
SERVICE MANUAL
© 1998-5/B51-5430-00 (K/K) 1416
* Refer to parts list on page 7.
Push knob
(K27-0211-08)
AC power cord*
(E30-)
Power switch
(S66-0203-08)
Voltage selector*
(S62-0208-08)
Grille assy
(B06-1257-08)
Knob
(K29-0580-08)x2
1p 98.12.129:12 y[W 1
background image
2
SW-32HT
No.
ITEM
INPUT
SETTINGS
OUTPUT
SETTINGS
AMPLIFIER
SETTINGS
ALIGNMENT
POINTS
ALIGN FOR
FIG.
Unless otherwise specified, the individual switches should be set as following :
POWER : ON
NO SIGNAL INPUT
1
IDLE CURRENT
­
Connect a DC
voltmeter to
R522
VOLUME : 0
SVR101
5 mV
(a)
Dc voltmeter
5 mV
R522
(a)
ADJUSTMENT
1p 98.12.129:12 y[W 5
background image
CROSSOVER
FIL
TER
VOLUME
CROSSOVER
LINE
INPUT
IC901
IC902
D905
D901
D902
D903
D904
C103
C119
C128
R137
B
E
G
E
B
EB
B
E
Q102
D103
D102
D109
D101
Q101
Q115
IC102
Q103
E
B
Q702
E
B
Q701
IC701
D701
D702
E
B
Q901
D906
R138
P502
1
2
R102
R119
R130
ZD101
R139
R126
J101
R128
R129
R706
R705
J514
R901
R702
R905
R906
R526
CN501
13
J538
R519
SVR101
R518
J532
BD901
J526
J535
R907
CN901
16
J530
J531
J528
J529
J533
J527
R517
R708
R709
J506
J511
J512
R512
R516
J502
R511
R505
J507
R704
R707
R712
R711
R124
R143
R142
R140
R165
RJ113
J114
R125
R127
14
85
R134
R136
R131
R132
R133
LD101
R135
J112
J107
J102
J106
J118
J124
J105
RB101
16
J117
R121
R111
R117
R104
R108
R110
R116
R114
R113
R115
R112
R123
R141
R120
R106
J121
J120
J123
J122
J110
J104
R105
RJ903
240V ONLY
CN904
15
RJ902
120V ONLY
RJ901
120V
ONLY
R101
R109
R107
C101
JK101
C114
17
14
8
C111
C113
C105
C115
C126
C129
C104
C121
C116
C110
C108
J125
J119
J111
JR104
R118
J115
J109
J108
J103
C901
C902
CN903
AC-L
L
N
AC-N
AC
CORD
POWER
SW
2
1
CN902
1
2
F904
F901
SW902
C130
C120
C118
C915
C912
CN101
16
C917
18
C701
C703
C501
C502
J520
J519
J524
J523
J522
J521
J504
2
B
B
E
BE
C
CE
12
11
1
IC502
Q504
Q503
Q505
R902
R527
R701
J537
J536
R525
R524
R523
R710
J509
R522
J515
R703
RL501
R520
R521
R713
C506
C508
C513
C924
F903
F902
C907
C908
C904
C903
C925
C910
C909
G
I
O
G
I
O
C921
C922
C919
C916
C913
C920
C923
C926
C906
1
C510
C512
C507
C509
C503
C905
C511
C704
J505
J516
J518
J517
J510
J508
J501
J534
C705
C702
C127
C107
C131
C122
C125
C102
C117
IC101
SW101
VR101
VR102
3
A
C
E
BD
2
1
3
5
7
4
6
PC BOARD(Component side view)
Refer to the schematic diagram for the value of resistors and capacitors.
1p 98.12.129:12 y[W 6
background image
CAUTION: For continued safety, replace safety critical
components only with manufacturer's recommended parts
(refer to parts list).
indicates safety critical components.
For continued protection against risk of fire, replace only
with same type and rating fuse(s). To reduce the risk of
electric shock, leakage-current or resistance measurements
shall be carried out (exposed parts are acceptably insulated
from the supply circuit) before the appliance is returned to
the customer.
The DC voltage is an actual reading measured with a high
impedance type voltmeter. The measurement value may
vary depending on the measuring instruments used or on
the product.
A
1
2
3
4
5
6
7
B
C
D
E
F
GI
H
J
Y19-4440-10
SW-32HT
(Y) TYPE
(K,P) TYPE
SW-32HT(K)
IC902
IC901
IC502
IC101
IC102
SW902
CN902
CN904
SW901
POWER SW
CN903
KBU60D
:
BD901
RD8.2ES(B)
ZD101
:
D101-103,701
: 1N4148
: 2SC2001
Q901
:
IC902
IC901
: TA7815S
TA79015S
D903
D904
D902
RL901
CN901
D905
CN902
Q901
INPUT
LINE
D901
D906
P501
LIMIT
FINAL TR.
IDLE
ADJ
LED
STANDBY
VOLUME
SP-WOOFER
POWER SW
SW901
CN903
2SA733
:
Q701
2SA1943(R)
:
Q505
2SC5200(R)
:
Q504
2SC3421(Y)
:
Q503
2SC945
:
Q101-103,702
IN4002
:
D905
IN4001
:
D702,901-904,906
UPC1237HA
:
IC701
UPC1298V
:
IC502
NJM4558D
:
IC102
TL074
:
IC101
CN501
D702
RL501
Q701
Q702
D701
Q505
Q504
Q503
BD901
RB501
D103
D102
LD101
Q101
Q102
Q103
CN101
RB101
ZD101
FILTER SW
CROSSOVER
CROSSOVER
SW101
DRIVE
RELAY
D101
SIGNAL LINE
: AC110-120V/220-240V
(Y)
F904
250V T 1.6A
3
2
1
2
1
OFF
ON
1
2
C902
0.01
C901
0.01
F901
250V T 1.6A
+
3
4
1
2
4.7 1/2W
R524
0.039
C510
T901
1/4W
R902 8.2K
+
C917 4.7u50
R901 22K
C913 0.022
R128
1M
+
C120
47u16
C121
0.022
R143 330K
C114 100P
4.7K
R116
+
C117
4.7u50
R101
330K
+
C130
47u16
+
C131
47u16
1
2
250V T 1A
F903
250V T 1A
F902
R905 68K
R906 47K
+
C912 47u16
C916 0.02
+
C915 47u16
IN 2
3
GND
OUT
1
2
1
3
OUT IN
GND
C926
0.022
0.022
C923
C925
0.022
C924 0.022
+
+
0.1
C907
1000u35
C909
C910
0.1
C908
1000u35
220 1W
R907
12
34
56
8
7
8200u63
+
0.1
C904
C906
C905
0.1
+
C903
8200u63
C921
0.022
C922
0.022
C902
0.01
C901
0.01
F901
250V T 3A
Q701,702
Q504,505
ON
OFF
21
: AC120V 60Hz
(K,P)
R105
47K
2
1
2
1
3
3
10K
R526
75K
R527
R512
1K
47u16
+
C502
R701
12K
R702
56K
+
C701 33u16
R704 56K
C702 10u16
R703 240K
+
C703 22u16
R705 22K
R706 22K
R525
75K
R707 33K
R710 10K
+
C704 1u50
R708
47K
R709
2.7K
R711
1K
+
C705 2.2u50
R712
4.7K
5W
5W
R523 0.22
R522 0.22
R521
1/2W
1/2W
10
10
R520
+
C511
1u50
C513
100P
100P
C512
C509
0.068
SVR101
500
C919 0.022
C920 0.022
R713
220
1W
C503
0.01
R511
47K
R505
4.7K
+
C501
1u50
+
C102 4.7u50
R119
33
+
C118
47u16
C119
0.02
JK101
R138
6.8K
R136
2.2K
22K
R137
R135
10K
2.2K
R134
3.3K
R133
10K
R132
VR101 100K(B)
1
2
3
4
5
6
1
2
3
4
5
6
R120
33
1K
R102
C103 100P
C101 220P
R130
1K
C128 0.022
+
C127
220u10
R142 100K
R141 10K
R129 10K
R123
10K
1M
R127
220K
R126
R125
2.2M
R139
JUMP
+
C125
220u16
C126
0.1
R131
4.7u50
OFF
ON
200Hz
60Hz
VR102 100K(B)
R118
4.7K
R121 24K
+
C112
0.47u50
R111
100
R112
OPT
R113
56K
R114
56K
2.7K
R115
JUMP
C108
0.056
C110
0.056
C113
0.056
C111
0.033
C116
R117
18K
C115
0.1
100
R104
680
R106
R110
8.2K
R108
100K
R109
5.6K
C129
0.1
7
13
8
9
10
1
2
14
3
6
+
-
-
+
VCC
7
8
6
5
1
2
3
4
VEE
C105
100P
R107
1M
12
11
4
5
+
-
1.8K
J538
R517 3.9K
C508 1000P
R516
15K
C507
15P
C506 15P
+
-
8
-
+
-
+
14
12
11
9
10
13
1
2
3
5
6
7
4
8
VCC
DRIVER
RELAY
7
6
VCC ON
OVER LOAD
DET.
AC OFF
MUTE
5
4
DET.
OFFSET
VOL.DET.
2
3
LATCH SW
AUTO RECOVERY
FLIP- FLOP
1
2.2K
R124
68
R140
150K
+
C107
IC701
0V
0V
46.3V
0V
0V
0V
46.3
0V
46.3V
0V
-46.3V
0V
-0.6V
0.6V
46.3V
0V
-0.7V
-1.3V
0.6V
-15.0V
-23.8V
0V
0V
15.0V
22.8V
3.5V
2.3V
0.8V
1.7V
0V
0V
0V
0V
-0.6V
0.6V
-1.3V
0.6V
-46.3V
-46.3V
0V
0V
40.0V
46.3V
46.3V
-44.3V
1.1V
0.9V
15.0V
0V
0.7V
0.3V
0.3V
2.0V
0V
1.4V
6.5V
6.0V
0V
14.9V
6.2V
6.2V
5.1V
0V
0V
14.9V
0V
0V
0V
0V
0V
-14.7V
0V
0V
0V
(BOTTOM VIEW)
2SA733
2SA2001
2SC945
2SC3421
NJM4558D
UPC1237HA
TA7815S
TA79015S
UPC1298V
2p 98.12.129:24 y[W 1
background image
SW-32HT
ø4x20 (BLK)
ø4x20 (BLK)
M4x12 (BLK)
ø3x10 (BLK)
M3x10 (BLK)
M3x8
(BLK)
M3x10 (BLK)
A
B
C
E
F
H
J
SW101
SW901
VOLUME
POWER
VR101
CROSSOVER
VR102
60Hz 200Hz
JK101
LINE INPUT
Q503
SW902
Q505
Q504
Q502
Bx8
Fx10
Fx10
Fx2
Fx2
Fx2
Fx2
Fx10
Fx2
Ax12
702
E
Fx2
Ex6
Fx2
Cx2
T901
Fx2
H
H
J
J
J
F
AC110-120V~
AC220-240V~
621
632
744
743
780
730
741x6
731
781
743
743
782
742
743
770
771
701
771
605
SP1
661
660
620
: N45-4020-45
: N46-4020-45
: N09-3688-08
: N89-3010-45
: N30-3010-45
: N30-3008-45
: N30-3010-45
1
2
3
A
B
Parts with exploded view numbers larger than 700 are not supplied.
EXPLODED VIEW
6
SW-32HT
1p 98.12.129:12 y[W 4

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