KENWOOD SW508B Service Manual

Cover page of KENWOOD SW508B Service Manual

Service Manual for KENWOOD SW508B, downloadable as a PDF file.

Manual details

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  • File size: 0.71 MB
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Sample pages

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Thumbnail of page 9
background image
POWERED SUBWOOFER
SW-508-ML/508-B
SERVICE MANUAL
© 2004-8 PRINTED IN KOREA
B51-5920-00 (K/K) 1055
SPECIFICATIONS
Type ............. Subwoofer system with built-in amplifier
[Amplifier]
Dynamic Power ........................... 75 W + 75 W (6
)
Rated Output Power 60 W + 60 W RMS (100 Hz,6
)
Input Sensitivity / Impedance
LINE INPUT .................................. 230 mV (22 k
)
SPEAKER INPUT (1ch input)......... 2.0 V (6.5 k
)
Frequency Responce
TURNOVER ON ........................... 15 Hz ~ 200 Hz
TURNOVER OFF......................... 15 Hz ~ 3.5 kHz
Rated Power Consumption ............................ 100 W
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 (6-5/16") Cone type x 2
Nominal Impedance ............................................ 6
Dimensions
Width ........................................ : 219 mm (8-5/8 ")
Height ................................... : 439 mm (17-5/16 ")
Depth .................................... : 392 mm (15-7/16 ")
Net Weight ....................................... 14.5 kg (32.0 lb)
70%
Knob
(K29-0595-18)x2
Protector
(F09-2010-08)
Cord bushing
(J42-0261-08)
Switch vol sel
(S62-0221-05)
AC power cord *
(E30-)
Woofer
(T10-1252-05)x2
Knob
(K29-0594-08)
Panel
(A29-0977-08)
SPK jack
(E21-0962-05)
Switch auto off
(S62-0220-05)
Knob
(K29-0594-08)
* Refer to parts list on page 6.
RCA
(E63-0223-08)
background image
POWERED SUBWOOFER
SW-508-ML/508-B
SERVICE MANUAL
© 2004-8 PRINTED IN KOREA
B51-5920-00 (K/K) 1055
SPECIFICATIONS
Type ............. Subwoofer system with built-in amplifier
[Amplifier]
Dynamic Power ........................... 75 W + 75 W (6
)
Rated Output Power 60 W + 60 W RMS (100 Hz,6
)
Input Sensitivity / Impedance
LINE INPUT .................................. 230 mV (22 k
)
SPEAKER INPUT (1ch input)......... 2.0 V (6.5 k
)
Frequency Responce
TURNOVER ON ........................... 15 Hz ~ 200 Hz
TURNOVER OFF......................... 15 Hz ~ 3.5 kHz
Rated Power Consumption ............................ 100 W
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 (6-5/16") Cone type x 2
Nominal Impedance ............................................ 6
Dimensions
Width ........................................ : 219 mm (8-5/8 ")
Height ................................... : 439 mm (17-5/16 ")
Depth .................................... : 392 mm (15-7/16 ")
Net Weight ....................................... 14.5 kg (32.0 lb)
70%
Knob
(K29-0595-18)x2
Protector
(F09-2010-08)
Cord bushing
(J42-0261-08)
Switch vol sel
(S62-0221-05)
AC power cord *
(E30-)
Woofer
(T10-1252-05)x2
Knob
(K29-0594-08)
Panel
(A29-0977-08)
SPK jack
(E21-0962-05)
Switch auto off
(S62-0220-05)
Knob
(K29-0594-08)
* Refer to parts list on page 6.
RCA
(E63-0223-08)
background image
SW-508-ML/508-B
2
CONTENTS / ACCESSORIES / DISASSEMBLY FOR REPAIR
CONTENTS
SPECIFICATIONS ...............................FRONT COVER
CONTENTS / ACCESSORIES ....................................2
DISASSEMBLY FOR REPAIR .....................................2
PC BOARD ..................................................................3
SCHEMATIC DIAGRAM ..............................................4
EXPLODED VIEW .......................................................5
PARTS LIST.................................................................6
Pin-plug cord (1)
(E30-7068-05)
Cushion (1 sheet)
(G13-3043-05)
AC plug adapter (1)
Use to adapt the plug on the power cord to
the shape of the wall outlet.
(Accessory only for regions where use is
necessary.)
ACCESSORIES
DISASSEMBLY FOR REPAIR
Amplifier
unit
HOW TO REMOVE THE AMPLIFIER UNIT
1. Remove the woofer from the cabinet (see "EXPLOD-
ED VIEW" on page 5)
2. Disconnect the cable from the amplifier unit.
3. Remove the amplifier unit from the cabinet (see
"EXPLODED VIEW" on page 5).
background image
3
AC
E
BD
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
CONTROL
MAIN
LED
I/O
VOLTAGE SELECTOR
POWER SUPPLY
D28
D29
D9
D20
D32
D21
CN2
IC7
IC6
CN12
D10
CN1
SW1
JK1
JK2
SPEAKERS
LINE
INPUT
AUTO
SHUT
OFF
Q3
Q20
IC2
D1
IC1
D2
D6
D5
D3
D4
Q2
D7
Q1
Q4
CN9
D17
CN8
D16
S1
D34
Q13
Q14
D31
D33
Q12
Q19
D35
D27
D25
D24
Q21
Q16
Q17
Q15
D23
D8
Q18
Q10
Q11
Q9
CN6
CN5
D30
D22
D19
D18
IC5
POWER
VOLUME
TURNOVER
TURNOVER
ON/OFF
CN4
CN15
CN11
CN7
IC3
IC4
CN3
CN14
CN13
CN10
CN16
CN18
S3
D26
D14
D15
D13
D12
Q8
J30
J25
R90
J42
C66
J49
J41
J28
C67
C55
C42
C41
J50
J51
C52
J53
J54
J55
J56
J58
J59
R69
R19
R13
C22
C19
R20
C17
R16
C9
R28
J35
C15
R11
C16
R12
R9
R10
C14
R5
J70
R2
R1
R25
R26
R27
R29
R24
R4
R8
C8
C2
R6
R7
C7
C4
R3
C3
J37
R23
R95
R21
R22
R15
C18
R17
R18
C21
R14
J69
J60
J26
C48
C51
R68
C47
J40
R50
J44
J16
J15
J10
R66
J8
C44
R65
J38
R77
R82
J11
J29
J48
J27
13
R53
J39
C46
C59
C53
C30
C28
R31
R35
R33
C25
R34
R32
C24
R36
C26
J57
C27
C23
J1
R47
C34
C33
R48
C35
C29
J61
JW2
J66
J65
J64
J63
J62
C36
13
R39
J21
R60
J9
R58
R61
J22
R59
R62
J52
R85
R84
R89
J20
C56
R88
C61
J6
J5
R92
R93
R56
J17
R91
C62
C58
C49
R94
C57
C50
C60
R71
J18
C45
J7
J19
R70
R87
R96
R63
R55
R64
J24
C65
C39
C64
C40
C38
C37
R52
R74
R73
R72
R75
R67
R57
R37
C20
J36
J34
J33
J3
J13
R81
R97
C54
J12
R78
R79
R80
R98
R86
R76
J43
J14
J45
R99
J47
J46
C43
R54
J23
R51
R49
R83
VR1
J4
J31
J32
VR2
J2
C31
C32
F1
T2
T1
RL1
JW1
C63
F2
J67
J68
1
3
1
15
7
15
1
14
85
14
85
14
2
15
1
14
2
31
1
41
21
21
5
1
5
8
4
1
7
1
1
4
8
5
1
4
1
1
2
2
1
3
1
3
1
4
8
5
2
E
C
EC
95
4
1
1
7
813
E
C
E
C
E
C
E
C
E
C
E
C
E
C
E
C
E
C
E
C
E
C
E
C
E
C
E
C
E
C
E
C
background image
A
BD
CE
2
1
3
5
7
4
6
4
SW-508-ML/508-B
SIGNAL LINE
B LINE
B LINE
GND LINE
IC1-5 : TL072
IC6,7 : TDA7295
Q1,3,11-13,15-17,20,21
: 2N3906
Q2,4,8,14,18,19
: 2N3904
Q9
: MPSW06
Q10
: MPSW56
D1-9,16,18,20-34
: 1N4148
D19
: 1N5246B
D17
: KBU6D
D12-15 : 1N4002
D2
(2/2)
IC1
D1
IC2
(1/2)
JK1
(1/2)
IC1
D4
D3
D5
D6
JK2
SW1
AUTO SHUT OFF
Q20
Q3
(2/2)
IC2
D7
Q2
Q1
Q4
CN1
CN12
CN11
D10
IC4
(1/2)
S3
(1/2)
IC3
TURNOVER
TURNOVER
ON/OFF
CN7
D16
VOLUME
CN15
S1
Q10
Q11
D19
Q12
Q9
D33
Q14
Q13
D31
D18
D35 D27
CN2
Q19
(1/2)
D29
IC5
IC5
(2/2)
D30
D17
CN9
CN5
D28
CN6
D20
D21
D8
D9
CN8
D25
D24
D23
D32
Q21
Q15
Q16
Q18
Q17
D22
CN4
D26
Q8
D12
D13
D15
D14
S2
CN18
CN16
CN10
USED (E) (J) TYPE
USED (Y) (X) TYPE
USED (Y) TYPE
CN3
D34
IC3
(2/2)
(2/2)
IC4
CN14
CN13
SPEAKER
INPUT
SPEAKER
OUTPUT
1N5240B
D35
:
LINE
INPUT
SPEAKER
A or B
SPEAKER
B or A
POWER
B
+B
T2.5A L
T1.6A L
T.30A
F1
T1.6A L
AUSTRALIA
EUROPE
JAPAN
E1,E2
X1
J1
DESTINATION
COUNTRY
PX
ABB.
Y1
YES
YES
YES
NO
JW1
C2
22u25
+
C3
270P
5
6
7
8
4
3
2
1
C4 1000P
R3 47K
22K
R2
R1
22K
100u25
+
100u25
+
C9
10u25
+
2
3
1
C15
100P
22K
R12
220P
R11
82K
R8 82K
82K
6.8K
R4
R5
6.8K
82K
10K
R10
4
8
C16
10K
8
5
7
6
1
2
3
4
R9
R7
R6
R26
22K
22K
R24
R25
10K
R27
R29
330
220K
R28 330
2.2K
R16
C17
1u50
+
0.01
C18
2.2K
R13
R14
47K
100P
C19
R15
2.2M
1u50
C20
+
6
7
5
1M
R37
4.7K
R95
10K
R19
22K
R18
R20
100
+
330u16
C22
R22
2.7M
R21
2.2M
1M
R23
100u25
C21
+
R17
4.7K
1
4
3
5
2
1
1K
2
R31
3
1
2
1
2
3
3
VR1
10K(B)
2
3
1
100P
7
6
5
C23
10K
R33
1
C24
18K
R34
470
R32
1
C25
50K(B)
VR2 (1/2)
50K(B)
VR2 (2/2)
16K
R35
16K
R36
6
5
7
220P
C35
0.068
C26
10u25
C29
3
5
7
4
6
2
1
3.3K
R39
47u25
C30
+
47u25
C28
+
1
2
47K
R54
9.1K
C43
47u25
R50
1/4W
R52
2.2K
1/4W
120
+
+
R53
10K
C42
47u25
C41
+
47u25
R85
22K
R84
R51
1/4W
2.2K
R49
120
1/4W
R90
22K
22K
C56
10u25
R91
1u50
C55
++
22K
R88
22K
R87
R89
4.7K
R96
R83
4.7K
R94
100K
22K
R92
22K
R93
33K
6
5
5
2
3
4
R61
R60
R55
1K
C52
47u50
R58
10K
620
28
3
4
22K
R63
1
10K
R62
470
7
R64
10K
0.047
C39
0.047
C40
3
2
1
10
5
1
9
6
11
12
14
2
3
8
15
13
7
4
0.047
C47
10
R68
100u50
+
C59
100u50
C46
+
470
R67
22K
R66
47u50
C45
+
22K
R65
1K
R57
1/4W
1/2W
47u50
C49
14
1
100u50
C50
100u50
C60
+
15
4
8
9
10
R70
+
C51
470
22K
R69
12
2
1/4W
R71
0.047
10
1/2W
3
5
7
13
6
11
+
1
2
22K
R59
1K
R56
1
2
1
4
3
6
5
7
1
2
10K
R82
47u25
C53
+
4.7K
R81
R80 47K
1K
R97
10K
R79
47K
R77
10K
R78
22K
R76
22K
R75
22K
R74
47K
R86
22K
R98
3.3K
R99
C48
47P
C44
47P
22u50
C62
+
22u50
C61
+
22u50
C57
+
22u50
C58
+
0.047
C66
C65 0.047
0.047
C64
0.047
C67
1
4
2
3
47K
R72
R73
47K
C38 4700u50
+
C37 4700u50
+
2
1
3
4
47K
R48
22K
R47
RL1
220u16
C34
+
0.022
C32
220u16
C33
+
0.022
C31
4
7
5
6
8
9
3
2
1
T1
T1.6A
L
F2
3
2
1
3
1
2
120V
240V
7
10
9
11
12
T2
4
3
2
1
T2
10
9
11
12
7
5
4
2
1
3
6
8
13
6
5
8
13
1
F1
2
: AC230V~ 50Hz
: AC110-120V/220-240V~
50/60Hz
(E)
(Y)
(J) : AC100V~ 50/60Hz
2
1
C36
0.01
JW2
3
2
1
14
JW1
0.01
C63
: AC240V~ 50Hz
(X)
NO
YES
NO
NO
JW2
110-
220-
C27
0.033
GRN
RED
10u25
+
C54
L
N
C8
C7
L+
L-
R-
R+
L+
L-
R-
R+
B
+B
+B
B
+B
+B
B
+B
+B
+B
+B
+B
+
+B
B
B
+B
+B
BB
+B
+B
B
+B
B
+B
+B
+B
+B
+B
+
+B
B
+B
B
+B
SW-508
I/O
CONTROL (LED)
CONTROL
IC6
IC7
MAIN
POWER SUPPLY
CAUTION: For contin-
ued safety, replace safe-
ty critical components
only with manufacturer's
recommended
parts
(refer to parts list).
indicates safety critical
components. For contin-
ued protection against
risk of fire, replace only
with same type and rat-
ing fuse(s). To reduce
the risk of electric shock,
leakage-current or resis-
tance 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 mea-
surement value may vary
depending on the mea-
suring instruments used
or on the product.
background image
5
Parts with exploded numbers larger than 700 are not supplied.
SW-508
A
B
C
D
E
F
G
H
J
K
L
M
N
P
:
: N10-2040-46
:
:
:
:
:
:
:
:
:
:
:
:
N09-3819-05
N19-0467-05
N30-3014-45
N30-4010-45
N35-2605-45
N35-3006-45
N35-3008-45
N35-3010-45
N44-3012-45
N44-4020-45
N44-4050-46
N50-3008-45
N50-3010-45
4x16(BLK)
M4
M3x14(BLK)
M4x10(BLK)
M2.6x5(BLK)
M3x6(BLK)
M3x8(BLK)
M3x10(BLK)
3x12(BLK)
4x20(BLK)
4x50
3x8(BLK)
3x10(BLK)
710
615
611
704
Gx2
S 2
VOLTAG
SELCTOR
735
735
713
POWER
SUPPLY
PCB
742
734
741
736
742
L
Jx2
Dx3
SW1
AUTO SHUT
OFF
JK2
SPEAKER
JK1
LINE INPUT
624
702
L
L
L
L
C
P
P
C
H
H
H
Hx4
Hx3
Hx2
Px2
I/O
PCB
L
612
L
L
H
Ex2
Ex2
Lx2
Gx2
G
721
735
POWER
SUPPLY
PCB
740
627
737
732
703
Kx2
B
B
Hx2
B
G
B
701
720
Kx2
Kx2
733
706
SP1
622
622
622
622
SPEAKER B
717
SP1
Mx2
Mx2
L
L
L
L
SPEAKER A
731
717
716
716
716
716
614
Lx2
Lx2
S 1
POWER
ON/OFF
VR1
VOLUME
VR2
TURNOVER
S 3
ON/OFF
CONTROL
PCB
CONTROL
PCB
723
605
625
625
607 626x2
Gx2
Gx2
Fx2
Ax2
Ax2
1
2
3
A
B
EXPLODED VIEW

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