Kenwood SW-3HT User manual

SPECIFICATIONS
Type ..........................................Subwoofer system with built-in
amplifier
[Amplifier]
100 watts RMS, at 4 W, from 20 Hz to 200 Hz with no more
than 0.09 % total harmonic distortion.
Phase Switching .....................NORMAL, REVERSE
Input Sensitivity & Input Impedance
RCA-type pin-plug jack .......45 mV (12 kW)
Push-type terminals ............0.7 V (5 kW)
Supply Voltage .......................U.S.A. and Canada AC 120 V
Other countries AC110V-120V/AC220V-240V
Rated Power Consumption ..110 W
[Speaker]
Enclosure .................................Bass-Reflex, Floor Standing
Type
Speaker Units .........................250 mm Cone type
Nominal Impedance ..............4 W
Dimensions ..............................Width : 300 mm (11-13/16")
Height: 420 mm (16-9/16")
Depth : 444 mm (17-1/2")
Net Weight ..............................16 kg (35.3 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.
LINE PHASE LEVEL CONTROL
REVERSENORMAL
FROM AMPLIFIER
+––+
+––+
TO SPEAKERS
POWER
ON
RL
RL
INPUT
OFF
SERIAL NO.
Level control knob
(K29-0576-08)
POWER SUBWOOFER
SW-3HT
SERVICE MANUAL
© 1997-11/B51-5394-00 (K/K) 1396
* Refer to parts list on page 7.
LED
(B30-1822-08)
AC cord *
(E30-)
Cloth frame assy
(B06-1144-08)
Badge
(B43-0847-04)
Slide switch voltage *
(S31-)
Slide switch phase
(S62-0207-08)
Power knob (REAR)
(K29-0579-08) Speaker terminal
(E21-0279-08)
Cord bushing
(J42-0234-08)
SW-3HT COVER 2P ( 98.4.25 8:27 PM y[W 2

SW-3HT
2
CONTENTS / ADJUSTMENT
SPECIFICATIONS.........................................Top cover
CONTENTS / ADJUSTMENT......................................2
PC BOARD ..................................................................3
SCHEMATIC DIAGRAM..............................................4
EXPLODED VIEW .......................................................6
PARTS LIST.................................................................7
CONTENTS
ADJUSTMENT
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
R611
VOLUME : 0
VR601
5mV
(a)
Dc voltmeter 5 mV
R611
(a)
SW-3HT COVER 2P ( 98.4.25 8:27 PM y[W 3

ACEBD
2
1
3
5
7
4
6
PC BOARD(Component side view)
Refer to the schematic diagram for the value of resistors and capacitors. 3
SW-3HT COVER 2P ( 98.4.25 8:27 PM y[W 6

1
ACEB D
3
5
7
2
4
6
POWER AMP (210-7145-110)INPUT/FILTER (210-7145-130)
GND
-V
R220 1K
4
8
4
8
12K
R113
4.7K
+15V
-15V
-15V
-15V
+15V
+15V
-15V
+15V
-15V
-15V
-15V
+15V
-15V
+15V
REV
NOR
C108
100P
C101
100P
C103
R210
+
5.6K
R217
1.5K
R215
R214
47K
5
6
+
7
-+
C216
1u50
R213
100
C214
100P
0.1
C215
18K
R211
18K
R212
C211
0.047
0.12
C212 C213
0.027
1+3
-2
+15V
R206
12K
R208
6.8K
R209
330K
C204
0.047
R207
330K
C207
0.047
-7
6
+
5
0.18
C208
0.18
C205
0.18
C206
0.18
C203
100
R205
R201
220K
R204
47K
R203
47K
47K
R202
C202
100P
C201
R435
270
VR201
100K(B)
R219
47K
1K
R218
1u50
C219
SW201
1K
R437 2
1
10K
R440
4.7K
-15V
-15V
-15V
-15V
+15V
+15V +15V
+15V
+5V
R112
5.6K
R111
22K
1
+
3
-
2
R110
5.6K
1.5K
R427
-
+7
4
8
6
5
R105
100K
100K
R108
100K
R106
100K
R107
R101R103
1/2W
1.2K
-15V
C226
220P
C229
220P
220P
C228
S IN
GND
S.DET
-V
GND
+V
GND
GND
AC-H2
AC-H1
DET
GND
SIN
-V
GND
+V
+V
+V-V
1W
180
R851
1W
1W
1
3
2
1/2W
R871
4.7
47u25
C875
+
47u25
+
C876
100u25
8.2K
R109 C102
220P
+
33u16
C104
220P
C106
22P
0.01
1
3
2+
-
+
C107
47u16
0.01
C105
0.01
C802 C801
0.01
R801
R802
4.7
4.7
AC-L2
AC-L1
AC-H2
AC-H1
1
2
3
2
3
1
2
1
R872
4.7
9
8
7
5
6
4
3
2
1
R875
R876
470
C874
220P
1W
1W
1
2
3
R115
1K
R104
1.2K
R102
4.7K
1
2
3
4
5
6
7
8
+
C871
+
C872
100u25
1K
R873 R874
1K
220P
C873
470
JK102
+
-
-
+
+
-
-
+
IC202
(1/2)
IC202
(2/2)
D401
Q403
(1/2)
IC101
(2/2)
IC101
(1/2)
IC201 IC201
(2/2)
ZD101 ZD102
W803
STAND-BY
MTZ16B:ZD871,872 MTZJ5.1B:ZD815 : MTZJ30BZD101,102
: D3SBA20D801 1SR139-100:D651-653,811-814,851 B30-1822-08:D401
D814
CN601
: NJM4558LIC101,201,202 : uPC1298VIC601 : uPC1237HAIC651 : NJM2072DIC851
Q403,651,851 : 2SC1815GR
: 2SA1015GRQ652
: 2SC1846Q601 : 2SC5198Q602 : 2SA1941(R)Q603
: 2SB1565(E,F)Q871 : 2SD2394FQ872
W601
Q871
Q872
ON/OFF
POWER
CN803
D851
CN801
CN802
D811
D812
D813
RY851
Lch
JK101
Lch
Rch
Lch
Rch
W802
ZD872ZD871
2SA1015GR 2SC1846 2SB1565 UPC1237HA UPC1298VNJM4558L
CAUTION: For continued safety, replace safety critical com-
ponents 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.
SW-3HT COVER 2P ( 98.4.25 8:27 PM y[W 7

-47.5V
47.4V
-47.5V
47.1V
-47.5V
47.4V
47.4V
0.6V
3.5V
2.2V
0V
47.1V
0V
41.0V
+2.1V
0V
0V
0V
-0.3V
-1.3V
-0.7V
0.5V
0V
-0.5V
0.5V
0.3V
0V
5.2V0.2V
0.7V
(Y) TYPE ONLY
(210-7145-150)
(210-7145-160)
(210-7145-140)
TRANSFORMER
(210-7145-120)
IC601
IC851
IC651
BLU RED
R615
BLK RED WHT BLU
S5 S4 S3 S2
120V240V
S7S6
21
C901
4700P
1
2
C902
0.047
(Y)
(K,P)
C903
0.047
T1.6A 250V
F901
: AC120V 60Hz
: AC110-120V/220-240V~
50/60Hz
AC220-
F904
S3
S4
S5
T1
S2
S1
TH
1
AC-H1
AC-H1
GND
GND
AC-H2
2
3
4
5
F902
F903
AC-L1
LGND
AC-L2
7
8
9
AC-H2 6
AC110-
F902,903
T800mA 250V
T800mAL 250V
PCANADA
F901
T3.15A 125V
DESTINATION
COUNTRY
U.S.A. K
ABB.
T1.6AL 250V
PX Y
C813
C612
0.047
R852
1K
82K
220K
1K
~
~
1K
VR601
0.7V
2.3V
0V
C852
2.0V
0.2V
0.5V
0V
+VCC
+VCC
-VCC
+VCC
-VCC
-V
8VCC
DRIVER
RELAY
7 6
VCC ONOVER LOAD
DET.
AC OFF
MUTE
5 4
DET.
OFFSET
VOL.DET.
2 3
LATCH SW
AUTO RECOVERY
FLIP-
FLOP
1
Q602,603
+
R662
10K
2.2u50
C652
1K
R661
R663
820
R614
10K
4.7K
0.047
C610
10 1W
R612
R613 R660
R664
470K
C609
100P
100P
C608
R611 0.22
+
C611 1u50
2.7
R609
1/4W
1/4W
R607 10
C607
10 1/4W
R608
+
100u63
11
1K
R606
100P
C605 R605
2.7K
22K +
C651
4.7u50
R651
R658
12K56K
R655
R659
22u16
+
C656
C655
47u10
68K
R657
R654
22K
+
C659
22u16
R653
22K
R652
33K
C660
+
2.7K
1u50
R656
47K
10000u
C805
++
C806
10000u
0.01
C804 C803
0.01
R610
1/4W
2.7
10
9
+
C606
100u63
R604
16K
8
7
6
12
13
14
1
2
3
5
4
C604
100P
R602
47K
C602
100P
C601
10u25
+
C603
100u25
+
R603
1K
R601
+
C851
1u50
10K
R854
+
100u16
1W
R811
820 +
C853 2200u16
1000P
2.7K
R855
R853
2.7K
+
+
2200u25
C812C811
2200u25
8 7 6 5 4 3 2 1
1
2
3
6363
5W x 2
1W
-
+
SP+
SP+
GND
+-
AC IN
AC SW
CN902B
CN901
SW901
SW902
W801
D801
FINAL TR.
DETECT
DC
PRE
DRIVE
IC
IDLE
ADJ.
DRIVE
RELAY
LIMIT
Q651
D652
Q603
Q602
D653
RY601
ON/OFF
SP
Q601
D651
Q652
RELAY
ON/OFF
D815
Q851
SP
PROTECT IC
WOOFER
SPK1CN804
X
X
X
X
SW-3HT
FHJG I
Y19-3990-10
SW-3HT COVER 2P ( 98.4.25 8:27 PM y[W 8

SW-3HT
6
EXPLODED VIEW (UNIT)
SW902
AC110-
120V~
AC220-
240V~
SW901
POWER
VR201
LEVEL
CONTROL
SW201JK102JK101D401 PHASELINE
FROM
AMPLIFIER
TO
SPEAKERS
A
B
C
D
E
F
G
H
J
K
5x25
4x14(BLK)
M4x8 (BLK)
3x12(BLK)
3x10(BLK)
3x8 (BLK)
3x6
3x10(BLK)
2.6x8
3x8
: N09-3668-05
: N44-4014-45
: N35-4008-45
: N82-3012-45
: N89-3010-45
: N89-3008-45
: N89-3006-46
: N34-3010-45
: N82-2608-46
: N89-3008-46
SW-3HT
620 622
660
780 779
790
771
771
759
772 774
777
771
630x2
771
771
771 778
759
775
773
630x2
T1
641
611
SPK1
613
625
642 632
621
633
Bx12
Dx2
HHH
H
Cx4Fx6
Dx3
Dx2
Ex2
G
G
Kx2
Kx2
Bx8
Jx2
1
2
3
AB
Parts with exploded view numbers larger than 700 are not supplied.
SW-3HT COVER 2P ( 98.4.25 8:27 PM y[W 5

SW-3HT
7
PARTS LIST
L : Scandinavia K : USA P : Canada R : Mexico
Y : PX(Far East, Hawaii) T : Europe E : Europe G : Germany
Y : AAFES(Europe) X : Australia M : Other Areas indicates safety critical components.
✽ New Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Ref. No Add-
ress
New
Parts
Description Desti-
nation Re-
marks
Parts No.
✽ New Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Ref. No Add-
ress
New
Parts
Description Desti-
nation Re-
marks
Parts No.
L : Scandinavia K : USA P : Canada R : Mexico
Y : PX(Far East, Hawaii) T : Europe E : Europe G : Germany
Y : AAFES(Europe) X : Australia M : Other Areas indicates safety critical components.
C207 CQ92FM1H473J MYLAR 0.047UF J
C208 CQ92FM1H184J MYLAR 0.18UF J
C211 CQ92FM1H473J MYLAR 0.047UF J
C212 CQ92FM1H124J MYLAR 0.12UF J
C213 CQ92FM1H273J MYLAR 0.027UF J
C214 CC45FSL1H101J CERAMIC 100PF J
C215 CQ92FM1H104J MYLAR 0.10UF J
C216 CE04KW1H010M ELECTRO 1.0UF 50WV
C219 CE04KW1H010M ELECTRO 1.0UF 50WV
C226 CC45FSL1H221K CERAMIC 220PF K
C228,229 CC45FSL1H221K CERAMIC 220PF K
C601 CE04KW1E100M ELECTRO 10UF 25WV
C602 CC45FSL1H101J CERAMIC 100PF J
C603 CE04KW1E101M ELECTRO 100UF 25WV
C604,605 CC45FSL1H101J CERAMIC 100PF J
C606,607 CE04KW1J101M ELECTRO 100UF 63WV
C608,609 CC45FSL1H101J CERAMIC 100PF J
C610 CQ92FM1H473J MYLAR 0.047UF J
C611 CE04KW1H010M ELECTRO 1.0UF 50WV
C612 CQ92FM1H473J MYLAR 0.047UF J
C651 CE04KW1H4R7M ELECTRO 4.7UF 50WV
C652 CE04KW1H2R2M ELECTRO 2.2UF 50WV
C655 CE04HW1A470M NP-ELEC 47UF 10WV
C656 CE04KW1C220M ELECTRO 22UF 16WV
C659 CE04KW1C220M ELECTRO 22UF 16WV
C660 CE04KW1H010M ELECTRO 1.0UF 50WV
C801-804 CQ92FM1H103J MYLAR 0.010UF J
C805,806 C90-5024-08 ELECTRO 10000UF 63WV
C811,812 CE04KW1E222M ELECTRO 2200UF 25WV
C813 CE04KW1C101M ELECTRO 100UF 16WV
C851 CE04KW1H010M ELECTRO 1.0UF 50WV
C852 CK45FB1H102K CERAMIC 1000PF K
C853 CE04KW1C222M ELECTRO 2200UF 16WV
C871,872 CE04KW1E101M ELECTRO 100UF 25WV
C873,874 CC45FSL1H221K CERAMIC 220PF K
C875,876 CE04KW1E470M ELECTRO 47UF 25WV
C901 C91-1441-08 CERAMIC 4700PF 250WV
C902,903 C91-0211-08 POLYEST 0.047UF 250WV
JK101 E21-0279-08 SPEAKER TERMINAL
F901 F05-1623-05 FUSE,1.6A/250V Y
F901 F50-0072-05 FUSE,3.15A/125V KP
F902,903 F05-8013-05 FUSE,800MA/250V Y
F902,903 F50-0062-05 FUSE,800MA/250V KP
F904 F05-1623-05 FUSE,1.6A/250V Y
- J13-0210-08 FUSE HOLDER
R103,104 RD14BB2H122J RD 1.2K J 1/2W
R606 RD14BB2C102J RD 1.0K J 1/6W
R607,608 RN14BK2E100J RN 10 J 1/4W
R609,610 RN14BK2E2R7J RN 2.7 J 1/4W
R611 R90-0826-05 MULTI-COMP 0.22X2 J 5W
R612 RS14GB3A100J FL-PROOF RS 10 J 1W
R663 RS14GB3A821J FL-PROOF RS 820 J 1W
R801,802 RS14GB3A4R7J FL-PROOF RS 4.7 J 1W
611 2A B06-1144-08 CLOTH FRAME ASSY
613 2A B43-0847-04 BADGE
620 1A E03-0115-05 AC PLUG ADAPTER Y
621 3B E30-5432-08 AC CORD,181-SA-W541 KP
621 3B E30-5438-08 AC CORD Y
622 1C ✽E30-5466-08 AUDIO CORD
625 1C F20-0702-08 ISOLATION SHEET 19X24
630 1B,2B J19-3988-08 CATCH BLACK(75)
632 3B J21-8750-08 AC CORD HOLDER
633 3B J42-0234-08 CORD BUSHING,3-703-244-021
641 2B K29-0576-08 LEVEL CONTROL KNOB
642 3B ✽K29-0579-08 POWER KNOB(REAR)
660 1A J02-0622-08 FOOT
- B46-0328-03 WARRANTY CARD
- B46-0336-03 WARRANTY CARD K
- B59-1104-00 SERVICE STATIONS LIST Y
-✽B61-0962-00 INSTRUCTION MANUAL
- H10-6447-08 POLYFOAM 310G/SET
- H10-6448-08 POLYFOAM 310G/SET
- H21-1284-08 MIRAMAR 1640X540X0.5T
-✽H25-2810-08 POLY BAG
-✽H51-1030-08 CARTON
-✽W01-1059-08 ACCESSORY KP
-✽W01-1060-08 ACCESSORY Y
A N09-3668-05 WOOD SCREW
B N44-4014-45 WOOD SCREW
C N35-4008-45 MACHINE SCREW(M4X8)
D N82-3012-45 SCREW
E N89-3010-45 SCREW
F N89-3008-45 SCREW
G N89-3006-46 SCREW
H✽N34-3010-45 SCREW
J N82-2608-46 SCREW
K N89-3008-46 SCREW
SPK1 2A ✽T10-0793-15 SPEAKER 10,
T1 2C ✽L07-3019-05 POWER TRANSFORMER KP
T1 2C ✽L07-3020-05 POWER TRANSFORMER Y
D401 B30-1822-08 LED
C101 CE04KW1C330M ELECTRO 33UF 16WV
C102 CC45FSL1H221K CERAMIC 220PF K
C103 CC45FSL1H101J CERAMIC 100PF J
C104 CC45FSL1H221K CERAMIC 220PF K
C105 CQ92FM1H103J MYLAR 0.010UF J
C106 CC45FSL1H220J CERAMIC 22PF J
C107 CE04KW1C470M ELECTRO 47UF 16WV
C108 CC45FSL1H101J CERAMIC 100PF J
C201 CQ92FM1H103J MYLAR 0.010UF J
C202 CC45FSL1H101J CERAMIC 100PF J
C203 CQ92FM1H184J MYLAR 0.18UF J
C204 CQ92FM1H473J MYLAR 0.047UF J
C205,206 CQ92FM1H184J MYLAR 0.18UF J
1 2
SW-3HT
ELECTRIC PARTS
SW-3HT COVER 2P ( 98.4.25 8:27 PM y[W 4

SW-3HT
PARTS LIST
14-6,Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150 Japan KENWOOD SERVICE CORPORATION P.O BOX 22745, 2201 East Dominguez St., Long Beach, CA 90801-5745, U.S.A. KENWOOD ELECTRONICS CANADA INC. 6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8 KENWOOD ELECTRONICS LATIN AMERICA S.A. P.OBOX 55-2791, Piso6 plazaChase,Cl. 47y Aquilino dela GuardiaPanama,Republic dePanama KENWOOD ELECTRONICS U.K. LIMITED KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB., United Kingdom KENWOOD ELECTRONICS BENELUX N.V. Meachelsesteenweg 418, B-1930 Zaventem, Belgium KENWOOD ELECTRONICS DEUTSCHLAND GMBH Rembrücker Str. 15, 63150 Heusenstamm, Germany KENWOOD ELECTRONICS FRANCE S.A. 13 Boulevard Ney, 75018 Paris, France KENWOOD ELECTRONICS ITALIA S.p.A. Via G. Sirtori, 7/9 20129, Milano, ltaly KENWOOD IBÉRICA S.A. Bolivia, 239-08020 Barcelona, Spain KENWOOD ELECTRONICS AUSTRALIA PTY. LTD. (A.C.N. 001499 074) P.O Box 504, 8 Figtree Drive, Australia Centre, Homebush, N.S.W. 2140, Australia KENWOOD & LEE ELECTRONICS, LTD. Unit 3712-3724, Level 37, Tower 1, Metroplaza, 223 Hing Fong Road, Kwai Fong N.T., Hong Kong KENWOOD ELECTRONICS GULF FZE P.O.Box 61318, Jebel Ali, Dubai, U.A.E. KENWOOD ELECTRONICS SINGAPORE PTE LTD. No. 1 Genting Lane #02-02, KENWOOD Building, Singapore, 349544 KENWOOD ELECTRONICS (MALAYSIA) SDN BHD. #4.01 Level 4, Wisma Academy Lot 4A, Jalan 19/1 46300 Petaling Jaya Selangor Darul Ehsan Malaysia
Note: Component and circuit are subject to modification to insure best operation under differing local conditions. This manual is based on Europe (E) standard, and provides information on regional circuit modification through use of alter- nate schematic diagrams, and information on regional component variations through use of parts list.
L : Scandinavia K : USA P : Canada R : Mexico
Y : PX(Far East, Hawaii) T : Europe E : Europe G : Germany
Y : AAFES(Europe) X : Australia M : Other Areas indicates safety critical components.
✽ New Parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Ref. No Add-
ress
New
Parts
Description Desti-
nation Re-
marks
Parts No.
R811 RS14GB3A821J FL-PROOF RS 820 J 1W
R851 RS14GB3A181J FL-PROOF RS 180 J 1W
R871 RS14GB3A4R7J FL-PROOF RS 4.7 J 1W
R872 RD14GB2H4R7J FL-PROOF RD 4.7 J 1/2W
VR201 ✽R31-0411-08 POTENTIOMETER LEVEL CONTROL
VR601 R31-0408-08 TRIMMING POT BIAS
RY601 S51-2092-05 RELAY SPEAKER
RY851 S51-2094-05 RELAY POWER
SW201 S62-0207-08 SLIDE SWITCH PHASE
SW901 S68-0202-08 POWER SWITCH
SW902 S31-2115-05 SLIDE SWITCH VOLTAGE Y
D651-653 1SR139-100 DIODE
D801 D3SBA20 DIODE
D811-814 1SR139-100 DIODE
D815 MTZJ5.1B ZENER DIODE
D851 1SR139-100 DIODE
IC101 NJM4558L IC(OP AMP X2)
IC201,202 NJM4558L IC(OP AMP X2)
IC601 UPC1298V IC(POWER AMP DRIVER)
IC651 UPC1237HA IC(POWER AMP)
IC851 NJM2072D IC
Q403 2SC1815GR TRANSISTOR
Q601 2SC1846 TRANSISTOR
Q602 2SC5198 TRANSISTOR
Q603 2SA1941(R) TRANSISTOR
Q651 2SC1815GR TRANSISTOR
Q652 2SA1015GR TRANSISTOR
Q851 2SC1815GR TRANSISTOR
Q871 2SB1565(E,F) TRANSISTOR
Q872 2SD2394F TRANSISTOR
ZD101,102 MTZJ30B ZENER DIODE
ZD871,872 MTZJ16B ZENER DIODE
3
SW-3HT COVER 2P ( 98.4.25 8:26 PM y[W 1