Kenwood SW-38HT User manual

Type ...................... Subwoofer system with built-in amplifier
[Amplifier]
Dynamic Power ................................................. 100 W (6Ω)
(For U.S.A. and Canada)
Rated Output Power (FTC)
75 W RMS, at 6 Ω100 Hz, with no more than 0.7 % T.H.D.
Input Sensitivity & Input Impedance ........ 300 mV (37 kΩ)
Rated Power Consumption ........................................ 70 W
Frequency Responce................................... 35 Hz ~ 200 Hz
(For other countries)
Rated Output Power .......................75 W RMS (100 Hz,6 Ω)
Input Sensitivity & Input Impedance ........ 300 mV (37 kΩ)
Rated Power Consumption ........................................ 70 W
Frequency Responce................................... 35 Hz ~ 200 Hz
Notes:
1. Kenwood follows a policy of continuous advancements in development. For this reason, specifications may be
changed without notice.
2. Full performance may not be exhibited in extremely cold locations (below 0 deg . C).
[Speaker]
Enclosure ........................ Bass-Reflex, Floor Standing Type
Speaker Units ............................160 mm (6-1/2") Cone type
Nominal Impedance ....................................................... 6 Ω
Dimensions
Width ................................................... : 210 mm (8-1/4")
Height ................................................ : 400 mm (15-3/4")
Depth ................................................. : 350 mm (13-3/4")
Net W eight .................................................... 9.2 kg (20.3 lb)
Supplied accessories
Pin-plug cord.................................................................. 1
NOTE:THE GRILLE CANNOT BE REMOVED.
POWERED SUBWOOFER
SW-38HT/-38HT-B
SERVICE MANUAL
© 2004-6 PRINTED IN KOREA
B51-5905-00 (K/K) 876
70%
100W POWERED
SUBWOOFER
POWER ON
Woofer
(T10-1253-05)
RCA
(E63-0223-08)
Knob
(K29-0596-08)
Cloth frame *
(B06-)
AC Power cord *
(E30-)
Switch
(S66-0206-08)
AC Power cord bushing
(J42-0261-08)
SPECIFICATIONS
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

SW-38HT
2
Pin-plug cord (1)
(E30-7068-05)
AC plug adapter(1)
(E03-0260-05)
ACCESSORIES
Accessories
How to Replace Woofer
Cut the cloth of cloth frame ass’y and replace it with new one after mount the speaker.
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

ACEBD
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
EC
EC
EC
EC
EC
EC
EC
EC
EC
EC
EC
EC
R41
R38
R42
R44
R43
C24
R39
R40
JW20
R9 JW15
JW11
C13
R11
R10
R15
JW7
R13
R14
JW27
R29
R31
C21
R25
R28
R26
JW17
R27
R30
C16
R32
R33
C20 C14
R24
R20
R17
R16 R21
JW14
R36 R23
R7
L1
JW27
C1 R2
VR1
R4
R1
R3
C4
C3
R5
C7
R6
C8
R8
C9
R19
R18
T1
JW 0
BLK
P2
41
15
10 6
12
14
214
15 1
21
13
12
1
85
14
85
1
21
4
85
14
14
3
JW25
JW26
R49
R45
R50
JW23
R51
JW22
JW24
R47
R48
JW10
R46
RL1
JW12
R34
R35
C19
JW21
JW13
JW9
C32
C31
JW8
C30
C15
C23
C22
C29
JW6
JW3
R21
JW5
JW4
C17
C18
R52
C28
C27
C26
C25
R37
JW1
JW2
C10
C2
JW19
JW18
F2
C6
C5
C11
C12
P1
BRN
C33
F1
JW16
D15
CN5
LED
I/O
MAIN
POWER SUPPLY
CN1
JK1
Q1
CN10
Q2
Q4
IC1
D2
D1
IC2
IC3
D16
D17
CN2
D4
D3
D12
D9
D10
D8
Q7
Q11 Q9
Q8
D11
Q12
D14
CN4
D13
CN3
D7
IC4
D6
CN9
Q3
Q5
D5
Q6
CN6
Q10 CN7
3
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7
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2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

ACEBD
2
1
3
5
7
4
6
SW-38HT
SUB-IN
JK1
D2
(1/2)
IC1
D1
(2/2)
IC1
(2/2)
IC2
(1/2)
IC2
CN1
CN2
(1/2)
D3
D4
IC3
(2/2)
IC3
Q1
D6 D7
Q4
Q3
Q2
D5
Q6
Q5
CN3
D8D10
D9
D11
Q10
Q11
Q12
Q9
Q8
Q7
D12
CN6
D14
D13
D17
D16
CN5
D15
SW1 POWER SW
CN4
CN10
CN7
USED
(K) (P) (E) (X) TYPE
CN9
S1
USED (Y) TYPE
SIGNAL LINE
B LINE
B LINE
GND LINE
IC1-3 : TL072
IC4 : TDA7293V
Q1,3,4,6,8,9,11
: 2N3906
Q2,7 : 2N3904
Q5 : 2N5401
Q10 : MPSW06
Q12 : MPSW56
D1-9,11,13,16,17
: 1N4148
D12 : 1N5246B
D14 : KBU4D
D10 : 1N5240B
P1P2
L1
22K
R2
22u25
+
C2
100P
C4
82
4
3
1
C3 1000P
R3 47K
6
57
1K
R4
10K(B)
VR1
10u50
+
C5
5
67
2
31
4
8
22K
R7
0.033
C9
22K
R8
0.068
C8
∗C6 ∗C7
R5
10K
∗R6
10u50
+
C10
1
2
3
4
1
2
3
4
47u25
C11
+
47u25
C12
+
82
4
31
R18R19
10K
R21
1K
R20
2.2K
R15
10K
R23
R17
5
67
4.7u50
C19
100K
R16
10K
+
22K390
1
2
3
4
5 6
7
8 9
10
11
12
13
14
15
C15
47u50 390
R13
C16
1
R14
3.9 2W
22K
R12
1K
R10
47u50
C14
+
9
10
1K
R9
R52 R32
R3110u50
C21
1K
R30
47u25
C20
+
4.7K
R28
10K
R29
100K 22K
+10K
R25 47K
R26 47K
10K
R27
68
R33
1
2
RL1
22K
R37
C23
10u50
100K
R38
33K
R34
22K
R35
C22
10u50
4.7K
R36
22K
R41
22K
R42
R40 R39
R44 22K
R43
10u50
C24
+
2.2K
R49
47u25
C26
+
2.2K
R48
+
R51
+
R50
1/4W
1/4W
470
R47
2W
2W
470
R46
47u25
C28
9.1K
47u25
C27
10K
22K 22K
+
C25
1u50
47K
9
10
1
2
3300u50
C30
3300u50
C29
++
6.8K
R45 3
1
2
0.047
C32
0.047
C31
2
1
1
2
(K,P) : AC120V 60Hz
50/60Hz
: AC110-120V/220-240V~
: AC230V~ 50Hz
: AC100V~ 50/60Hz(J)
(E)
(Y)
5
6
4
3
2
1
8
10
9
7
10
9
6
7
8
2
1
3
4
5
∗F1 BLK
WHT
0.01
C33
T1
132
1
2
3
4
T1.25AL 250V
220-240V110-120V
B
+B
T2
∗JW 0
: AC240V~ 50Hz(X)
F2
T2AL
T2A
T1.25AL
T2.5A
F1
T1.25AL
AUSTRALIA
EUROPE
JAPAN
E
X
J
DESTINATION
COUNTRY
U.S.A.
CANADA
PX
ABB.
Y
P
K
NO
YES
NO
NO
NO
JW 0
39K
R1
1/4W
22K
R11
47K
R24
C17
0.047
C18
0.047
C13
47P
B
+B
B
+B
+B B
B
+B
+B
B
+B
B
+B
B
B
+B
+B
B
+B
B
+B
IC4
I/O
MAIN
LED
SW-38HT
POWER SUPPLY
SW-38HT
K,P EXYJ
C6,7 0.068 0.68
R6 270K 18K
CAUTION: For continued safety, replace safety critical components only with
manufacturer's recommended parts (refer to parts list). indicates safety crit-
ical components. For continued protection against risk of fire, replace only
with same type and rating fuse(s). To reduce the risk of electric shock, leak-
age-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 with no
signal input. The measurement value may vary
depending on the measuring instruments used
or on the product.
4
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2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

EXPLODED VIEW
Parts with exploded numbers larger than 700 are not supplied.
SW-38HT
706
605
711
T1 or
T2
752
711
754 713
603
601
610
SW1
708
715
753
711
714
700
751
709
707
JK1
INPUT
VR1
VOLUME
SP1
B
C
D
E
F
G
H
: N44-3010-45
:
:
:
:
:
:
N44-4016-45
N44-4010-45
N86-3006-45
N86-3010-45
N86-3014-45
N10-2040-46
φ3x10(BLK)
φ4x16(BLK)
φ4x10(BLK)
φ3x6(BLK)
φ3x10(BLK)
φ3x14(BLK)
N4
POWER
SUPLY PCB
LED PCB
MAIN PCB
I/O PCB
Bx2
Fx2
Hx2
Hx2
Gx2
Cx2
Dx2
Dx2 Cx2
Bx2
B
C
E
C
C
C
C
C
F
F
F
C
C
Cx2
Cx2
Bx2
702
712
604
616
1
2
3
AB
SW-38HT
5
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2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299

PARTS LIST
Ref. No Add-
ress
New
Parts
Parts No. Description Desti-
nation Re-
marks
T2 3B ✽L07-3047-05 TRANSFORMER 120326-1228A17310 KP
T2 3B ✽L07-3048-05 TRANSFORMER 230326-1328A17310 E
T1/T2 3B ✽L07-3049-05 TRANSFORMER 115326-1528A17310 Y/X
R14 RS14GB3D3R9J FL-PROOF RS 3.9 J 2W
R46,47 RS14GB3D471J FL-PROOF RS 470 J 2W
VR1 ✽R31-0432-08 POT1/B10K/RV16A371-1B14RV16AE
RL1 ✽S76-0218-08 RELAY OMRON/SPS372-1G5PA1DC24
S1 ✽S62-0219-08 SWITCH VOLT VEV327-VEV1261BCT Y
D1-9 1N4148 DIODE IN4148 D0334-31N4148
D10 ✽1N5240B DIODE-Z/1N5240B334-41N5240B
D11 1N4148 DIODE IN4148 D0334-31N4148
D12 ✽1N5246B DIODE-Z/1N5246B334-41N5246B
D13 1N4148 DIODE IN4148 D0334-31N4148
D14 ✽KBU4D BRIDGE DIODE KB331-2KBU4D
D16,17 1N4148 DIODE IN4148 D0334-31N4148
IC1-3 ✽TL072 IC/TL072/DIP8 331-1TL072
IC4 ✽TDA7293V IC ST TDA7293V 331-A7293V-00
Q1 2N3906 TR 2N3906 PNP T384-62N3906
Q2 2N3904 TR 2N3904 NPN T383-62N3904
Q3,4 2N3906 TR 2N3906 PNP T384-62N3906
Q5 2N5401 TR2N5401PNPT384-2N5401-00
Q6 2N3906 TR2N3906PNPT384-62N3906
Q7 2N3904 TR 2N3904 NPN T383-62N3904
Q8,9 2N3906 TR 2N3906 PNP T384-62N3906
Q10 ✽MPSW06 TR/T0226/MPSW06383-9MPSW06
Q11 2N3906 TR 2N3906 PNP T384-62N3906
Q12 ✽MPSW56 TRANS/PNP/MPSW5384-9MPSW56
✽ 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. 2
L:Scandinavia K : USA P : Canada R : Mexico C : China I : Malaysia
Y : PX(Far East,Hawaii) T : England E : Europe G : Germany V : China(Shanghai)
Y : AAFES(Europe) X : Australia Q : Russia H : Korea M : Other Areas indicates safety critical components .
Ref. No Add-
ress
New
Parts
Parts No. Description Desti-
nation
Re-
marks
-✽B61-1221-00 INSTRUCTION MAN640-SW38HT-00 KPEX
-✽B61-1227-00 INSTRUCTION MAN640-SW38HY-00 Y
-✽H10-8443-08 POLYFOAM TOP SW720-TSW38T-00
-✽H10-8444-08 POLYFOAM BTM SW720-BSW38T-00
-✽H51-2069-08 CARTON SW38HT K730-0SW38H-10 KPEX
-✽H51-2070-09 CARTON SW38HT K730-0S38HY-10 YS
-✽H51-2071-09 CARTON SW38HT K730-0SW38BY-10 YB
601 3B ✽E30-7084-05 AC POWER CORD (316-KP3555-01 K
601 3B ✽E30-7085-05 AC CORD 2M EU 316-0E3555-00 E
601 3B ✽E30-7086-05 AC CORD 2M 115/316-0M3555-00 Y
601 3B ✽E30-7087-05 AC CORD 2M AS 316-0X3555-00 X
603 3B ✽J42-0261-08 BUSHING 5RF-4 P408-005RF4-00
604 2A ✽B06-1790-08 CLOTH FRAME ASSK201-SW380HT-10 KPEXYS
604 2A ✽B06-1802-08 CLOTH FRAME ASSK201-SW380HB-10 YB
605 1A ✽E30-7068-05 CORD RCA PIN SL394-0SL307-00
610 3B ✽K29-0596-08 KNOB SW38HT K218-SW3801B-00
616 1A ✽E03-0260-05 AC PLUG ADAPTER344-0JT475-00 Y
SP1 2A ✽T10-1253-05 WOOFER SW-38HT 300-K038HT1600
SW1 3B ✽S66-0206-08 SW1/ROCKER/OR-L327-0RL17DBB2
D15 ✽B30-1848-08 LED L-7113CGCK 335-151102-00
C2 CE04KW1E220M ELECTRO 22UF 25WV
C3 CK45FB1H102K CERAMIC 1000PF K
C4 CK45FB1H101K CERAMIC 100PF K
C5 CE04KW1H100M ELECTRO 10UF 50WV
C6,7 CK45FB1H684K CERAMIC 0.68UF K EXY
C6,7 CK45FB1H683K CERAMIC 0.068UF K KP
C8 CK45FB1H683K CERAMIC 0.068UF K
C9 CK45FB1H333K CERAMIC 0.033UF K
C10 CE04KW1H100M ELECTRO 10UF 50WV
C11,12 CE04KW1E470M ELECTRO 47UF 25WV
C13 CC45FCH1H470J CERAMIC 47PF J
C14 CE04KW1H470M ELECTRO 47UF 50WV
C15 CE04BP1H470M NP-ELEC 47UF 50WV
C16 ✽C91-0217-05 M.POLYESTER 357-11051JJ13
C17,18 CK45FB1H473K CERAMIC 0.047UF K
C19 CE04KW1H4R7M ELECTRO 4.7UF 50WV
C20 CE04KW1E470M ELECTRO 47UF 25WV
C21 CE04KW1H100M ELECTRO 10UF 50WV
C22,23 CE04BP1H100M NP-ELEC 10UF 50WV
C24 CE04KW1H100M ELECTRO 10UF 50WV
C25 CE04KW1H010M ELECTRO 1.0UF 50WV
C26-28 CE04KW1E470M ELECTRO 47UF 25WV
C29,30 CE04KW1H332M ELECTRO 3300UF 50WV
C31,32 CK45FB2A473M CERAMIC 0.047UF M
C33 ✽C90-6583-05 CAP MP/10n/250V357-51032FM03
JK1 ✽E63-0223-08 RCA/1P/RJ-1081-399-RRJ10810103
F1 ✽F50-0250-05 FUSE 250/2A 51M365-312200102 KP
F1 ✽F50-0230-05 FUSE 250V/2A 50365-312200101 Y
F1 ✽F50-0228-05 FUSE 250V/1.25A365-312125101 EX
F2 ✽F50-0228-05 FUSE 250V/1.25A365-312125101 Y
✽ 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. 1
L:Scandinavia K : USA P : Canada R : Mexico C : China I : Malaysia
Y : PX(Far East,Hawaii) T : England E : Europe G : Germany V : China(Shanghai)
Y : AAFES(Europe) X : Australia Q : Russia H : Korea M : Other Areas indicates safety critical components .
SW-38HT Y=YS+YB, YS=SW-38HT, YB=SW-38HT-B
AMP
SW-38HT
w w w . x i a o y u 1 6 3 . c o m
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3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299