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SKW-100
Ref. No. 3753
092002
SERVICE MANUAL
POWERED SUBWOOFER
MODEL SKW-100
Black models
DD 120V AC, 60Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
1
SKW-100
SPECIFICATION
Type Bass-reflex with built-in power amplifier
Frequency response 30 Hz-150 Hz
Output power 150 W Dynamic
Input sensitivity 220 mV
Input impedance 15 k
Woofer 8 inch cone type
Power supply AC120V, 60Hz
Power consumption 75 W
Dimensions (WxHxD) 9-1/4" x 20-5/16" x 16-3/16" / 235 x 516 x 411 mm
Weight 29.1 lbs. / 13.2 kg
Specifications and appearance may subject to change for improvement without prior notice.
SERVICE PROCEDURES
1. Replacing the fuse
This symbol located near the fuses indicates that the
fuse used is fast operating type. For continued protection against
fire hazard, replace with same type fuse. For fuse rating refer to
the marking adjacent to the symbol.
Ce symbole indique que le fusible utlise est a rapide.
Pour une protection permanente, n'untiliser que fusibles de
meme type. Ce darnier est la qu le present symbol est
appse.
CIRCUIT NO. PART NO. DESCRIPTION
F902,903 HWF1180406100 T4AL/250V, Fuse
2
SKW-100
A B C D
EXPLODED VIEW
1
2
3
4
5
3
A B C D
SCHEMATIC DIAGRAM
U1 MAIN PC BOARD
1 (LVM0199C011)
C405 CN302
CN301 R401 R403
22K 0.033uF
150K
1 2 3 4
C402
C418 C419 IC401-C R407
C401 C403 200p LM324 R405 200p 9 4.7K C501
C304 LM324 13 15K 8
2 0.068uF 14 10
1uF 1 12
3 C407
R406
IC1-B C408 1uF
C404 56K
TO RB301 IC1-A
0.068uF 0.0058uF
R404
C305
150K
0.22uF R402
R304
10K
2 R384 R372
2.2K 330
C355
C385 47p R366 ZD301
100u/16 R358 680K 8V
R351 R356 R380
R305 270K C360
47K 100K 10K R383 R368
220u/16
C358 R364 C364
C354 10u/16 D302 220K .1uF
Q301 C353
2SC945 47p R355
R362
2.2uF R354 1K
C351 R359 C357
2K D307 R387
270K R361 220u/18 R385
1M 82K R369
C352 Q302 10K
R352 .1uF 2SC945
R355
3
R357
TO CN302
JK301
CRP0008-001 RB301
RB401
R
1
R374 R373
CN401
R301
4 12K R303 Q303
R371 R376 2SC945
10K 10K
VR401 10K
C302
50K
1uF
R375
LB401 Q307
2SC945 R377
33K
C301 R302
100p 6.8K
R370
10K
5 U3 JACK PC BOARD U2 VOLUME PC BOARD
(LVM0199C21) (LVA0222C001)
4
SKW-100
E F G H
TO RB401
R520 C509 R525
CN501
C508 47K 100p 22K
C513 C518
R518 R519 22u / 25 22u / 25
R501 680 10K
22K
R524
4.7
IC501
C512 C510
R502 22u/25 .1uF
1K
8
7
IC502-B 5 R522
R505 C503 C507 D507
6 C502 33K
2SC945 2.2uF 4.7K R507 2.2uF R506 .001uF
R508 200K C514 10uF
Q502 39K R521
R573 R512 1M 22K
1K 20K
C515
2 R515 R523 10uF
10K D305 2 10K
1 IC502-A
3
C504 R526 4
Q501 10K R509
10u/50
2SC945 10K
R518 C505 R512
6 10K 10u/50 120K D308
R385
200
+VCC
F903
C412 C414 R470 C919 T4AL/250V
.022uF .22uF 100 100u/25 R903 620/2W
+12V RS-402
+12V
C909 C905 DB901
ZD902 .7uF 4700u/50 F902
C410 C907
75V T4AL/250V
47u/15 .022uF
C411 C915
47u/15 C870 C908 .7uF
ZD901
.1uF .022uF
75V
R370
10K C413 C415 C918
-12V R411 C917 R902 C908
.022uF .22uF 100 100u/25 .7uF 1K/2W 4700u/50
-VEE
C358
22u/50
47455-078
T807
5
SKW-100
A B C D E F G H
SCHEMATIC DIAGRAM
U1 MAIN PC BOARD
TO RB401
1 (LVM0199C011) R520 C509 R525
CN501
C405 CN302 C508 47K 100p 22K
CN301 R401 R403
22K 0.033uF
150K
1 2 3 4 C513 C518
C402 R518 R519 22u / 25 22u / 25
C418 C419 R407 R501 680 10K
LM324 R405 9 IC401-C C501
C401 C403 200p 200p 4.7K 22K
C304 LM324 13 15K 8 R524
2 0.068uF 14 10
1uF 4.7
1 12 C407
3 R406 IC501
IC1-B 1uF C512 C510
C404 56K C408
TO RB301 IC1-A R502 22u/25 .1uF
0.068uF 0.0058uF
R404 1K
C305
150K 8
0.22uF R402
R304
10K 7
IC502-B 5 R522
R505 C503 C507 D507
6 C502 33K
2SC945 2.2uF 4.7K R507 2.2uF R506 .001uF
R508 200K C514 10uF
Q502 39K R521
R573 R512 1M 22K
1K 20K
2 R384 R372 R515 R523
C515
10uF
2.2K 330 10K D305 2 10K
1 IC502-A
3
C355 C504 R526 4
C385 47p R366 ZD301 Q501 10K R509
10u/50
100u/16 R358 680K 8V 2SC945 10K
R351 R356 R380
R305 270K C360 R518 C505 R512
47K 100K 10K R383 R368
220u/16 10K 10u/50 120K D308
C358 R364 C364
C354 10u/16 D302 220K .1uF
Q301 C353
2SC945 47p R355 R385
R362 200
2.2uF R354 1K
C351 R359 C357
2K D307 R387
270K R361 220u/18 R385
1M 82K R369
C352 Q302 10K
R352 .1uF 2SC945
R355
3 +VCC
R357
F903
C412 C414 R470 C919 T4AL/250V
.022uF .22uF 100 100u/25 R903 620/2W
+12V RS-402
+12V
C909 C905 DB901
TO CN302 ZD902 .7uF 4700u/50 F902
C410 C907
75V T4AL/250V
47u/15 .022uF
JK301
CRP0008-001 RB301 C411 C915
47u/15 C870 C908 .7uF
RB401 ZD901
.1uF .022uF
75V
R370
10K C413 C415 C918
R374 R373 -12V R411 C917 R902 C908
.022uF .22uF 100 100u/25 .7uF 1K/2W 4700u/50
CN401
R301
4 12K R303 Q303 -VEE
R371 R376 2SC945
10K 10K
VR401 10K
C302
50K
1uF
R375 C358
LB401 Q307
2SC945 R377 22u/50
33K
C301 R302
100p 6.8K
R370
10K
47455-078
T807
5 U3 JACK PC BOARD U2 VOLUME PC BOARD
(LVM0199C21) (LVA0222C001)
6
SKW-100
A B C D
PRINT CIRCUIT BOARD VIEW
U1 MAIN PC BOARD
(LVM0199C011)
1
2
3
4
U3 JACK PC BOARD
U2 VOLUME PC BOARD (LVA0222C001)
(LVM0199C021)
5
7
SKW-100 Parts list
SKW-100
Ref. No. Part No Description
1 BPR0018C001 Pote tube
2 DPP9630-158 Paper duct
3 EVM056C001 Wood box
4 Logo
5 IVE0037-001 Sponge
6 FSWA080-312 SPK driver
7 H011109-316 Screw
8 BPE0007C001 Foot
9 H011708-325 Screw
10 EVB0001C001 Wood board
11 H011708-370 Screw
12 BPC0021-001 Rear cover
13 APE0222C001 VR/LED ass'y
14 APE0199CC23 Jack ass'y
15 DLH0014-002 LED holder
16 GSE0117C001 PCB BKT
17 DSS0007-002 Washer
18 H121003-310 Screw
19 APE0199CD13 PCB ass'y
20 H121009-308 Screw
21 IVE0183C001 Sponge
22 IVE0182C001 Sponge
23 GSP0047C001 Rear plate
24 H121009-312 Screw
25 BPK5018-003 Volume knob
26 47455-D65 Line cord
27 IVP0001-003 Polybag
28 DBU3050-110 Bushing
29 H110504-325 Screw
30 ICU0007-001 Rubber pad
31 TT11201C012 PWR trans
32 HWF8040-010 Washer FIB
33 H110303-308 Screw
34 GSE0110-001 Bracket
35 GSE0206-001 PCB bracket
36 HWT8540-110 Washer
37 HNM4070-130 Nut
38 H110303-314 Screw
39 GSE0093-002 PCB bracket
40 GAL0044C002 Heat sink
2210746 2SC945
RHI4558-001 JRC4558D
RHI0324-001 LM324N (14 PIN)
RHI7293-001 TDA7293 (15 PIN)
41 Sound absorber
8
SKW-100
ONKYO CORPORATION
Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: 072-831-8111 Fax: 072-833-5222
ONKYO U.S.A. CORPORATION
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.
Tel: 201-785-2600 Fax: 201-785-2650 E-mail: [email protected]
HOMEPAGE
http://www.onkyo.co.jp/
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