Onkyo SKW-50 User manual

SKW-50
Ref. No . 3699
SERVICE MANUAL
POWERED SUBWOOFER
MODEL SKW
-
50
MODEL
SKW 50
R
SAFETY-RELATED COMPONENTWARNING!!
COMPONENTS IDENTIFIED BY MARK ONTHE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACETHESE COMPONENTS WITH ONKYO
PARTSWHOSE PART NUMBER APPEAR AS SHOWN
INTHIS MANUAL.
MAKE LEAKAGE CURRENT OR RESISTANCE
MEASUREMENTSTO DETERMINETHAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROMTHE
SUPPLY CIRCUIT BEFORE RETURNINGTHE
APPLIANCETOTHE CUSTOMER.
SCHEMATIC DIAGRAM AND INTHE PARTS LIST ARE
MDD
120V AC
,
60H
z
072001

T
yp
e Bass-reflex with built-in
p
ower S
p
eaker 20-cm woofer
am
p
lifier Power su
pp
l
y
AC 120V,60Hz
Use For su
p
erbass-ran
g
e Power consum
p
tion 70W
re
p
roduction Dimensions
(
W x H x D
)
235 x 490 x 409
(
mm
)
Fre
q
uenc
y
res
p
onse 30-200Hz 9-1/4" x 19-5/16" x 16-1/8"
(
at maximum crossover fre
q
uenc
y)
Wei
g
ht 12.5k
g
Crossover fre
q
uenc
y
50-200Hz
(
variable
)
27.6lbs
Maximam out
p
ut
p
ower 60W
In
p
ut im
p
edance 4.7kohm Pin connector cable
(
1
p
c.
)
(
for s
p
eaker-level in
p
ut terminals
)
S
p
acers
(
4
p
cs.
)
12kohm Instruction manual
(
for low-level in
p
ut
j
acks
)
Other AUTO STANDBY ON/OFF
(
with CANCELLING Switch
)
Sensitivit
y
Speaker-level 2V
Line 45mV
Accessory
SKW-50
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
F901
252253 2A-T/UL-ST2
252159 or 2A-UL/T237,Fuse or
SERVICE PROCEDURES
SPECIFICATIONS

FREQUENCY OUTPUT
LEVEL
MIN MAX
50 Hz
200 Hz
POWER
POWERED SUBWOOFER
R
SPEAKER LEVEL
INPUT
FROM
AMP/RECEIVER
AUTO STANDBY
LINE
INPUT
L
R
OFF ON
OUTPUT
TO SPEAKERS
(MONO)
+_L+
_
R+ _L+
_
Power switch and indicator
Frequency adjusting knob Output level adjusting knob
Speaker-level input terminals
Speaker-level output terminals
Low-level input jacks
Auto standby switch
To AC outlet
SKW-50
PANELVIEW

SKW-50
REAR PANEL CONNECTION
R
SPEAKER LEVEL
INPUT
FROM
AMP/RECEIVER
AUTO STANDBY
LINE
INPUT
L
R
OFF ON
OUTPUT
TO SPEAKERS
(MONO)
+_L+
_
R+ _L+
_
Connection with amplifier's
special subwoofer jack
If your receiver(amplifier)is equipped with
a monaural subwoofer jack,connect it to the
SKW-50 Left (LINE INPUT)jack.
R
SPEAKER LEVEL
INPUT
FROM
AMP/RECEIVER
AUTO STANDBY
LINE
INPUT
L
R
OFF ON
OUTPUT
TO SPEAKERS
(MONO)
+_L+
_
R+ _L+
_
L
R
Connection with a preamplifier
Preamplifier
Output terminals
R
SPEAKER LEVEL
INPUT
FROM
AMP/RECEIVER
OUTPUT
TO SPEAKERS
+_L+
_
R+ _L+
_
R+ _L+
_
Connection with receiver's(amplifier's)
speaker terminals

OUTPUT
INPUT
FROM
AMP/RECEIVER
TOSPEAKERS(MONO)
SPEAKERLEVELLINE
INPUT
AUTOSTANDBY
L
R
OFFON
B14
B28
B2
B23
B18
B27
B19 B20
B17
A18
A17
A13
A12
A8
U3
Q951
Q952
Q516
Q541
A1
Q515
R602
A3
A23
U1
T901
F901
U5
A19
A14
A20
P901 A16
A15
U2
U4
U9
U8
U7
B16 A11
B3
B10
B25
A6
A3
P535 A22
B8
B6
B14
B24
SKW-50
EXPRODED VIEW

SKW-50
PARTS LIST
EXPLODEDVIEW REF NO. PART NO. DESCRIPTION
A1 27160467 Heat sink
A3 27130745 Bracket
A6 27141661 Retainer
A8 28184777 Cover
A11 29-100-076-21 Cushion
A12 28141475 t2X5X160,Cushion
A13 28141476 t2X5X80,Cushion
A14 27122895A Rear panel
A16 830440109 4TTC+10C(BC),Self tapping screw
A17 28141473 t2X5X415,Cushion
A18 28141474 t2X5X195,Cushion
A19 28141334 Cushion
A20 27301941 Cord,bushing
A22 260208 Binder
A23 223021 TBM-51W 9043,Isolation sheet
B2 W20170A Speaker ass'y
B3 AZ200003-01 Cabinet ass'y
B7 31-000-038-61 㱢105-㱢115 L=195,Paper duct
B8 29-100-076-11 Cushion
B9 51-000-119-01 Box ass'y
B10 AZ000084-01 Base ass'y
B14 54-000-122-01 VHZ 30t*150*150,Sound absorbent
B16 58-000-301-01 Cover
B17 57-000-581-01 Panel
B18 58-000-302-01 Foot
B19 58-000-303-01 Knob(A)
B20 58-000-304-01 Knob(B)
B23 70-015-450-01 㱢4*50,Self tapping screw
B24 70-015-414-01 㱢4*14,Self tapping screw
B27 71-079-800-03 Nuts
F901 252159 or 2A-UL/T-237,Fuse
252253 2A-T/UL-ST2,Fuse
P535 2009990611UL NSAS-2P0833,Socket
P901 253272HIT AS-UC-6#18,Power supply cord
Q515 2203063 or 2SC5198-O,Transistor
2203062 or 2SC5198-R,Transistor
2202524 or 2SC4468-Y,Transistor
2202526 or 2SC4468-P,Transistor
2202523 2SC4468-O,Transistor
Q516 2203053 or 2SA1941-O,Transistor
2203052 or 2SA1941-R,Transistor
2202514 or 2SA1695-Y,Transistor
2202516 or 2SA1695-P,Transistor
2202513 2SA1695-O,Transistor
Q541 2202104 or 2SC3423-Y,Transistor
2202103 2SC3423-O,Transistor
Q951 2202754 2SD1266-P,Transistor
Q952 2202764 2SB941-P,Transistor
R602 4000144 PTH9M04-2.2K,Thermistor
T901 2301487 NPT-1396D,Power transformer
U1 1W204565-2D NAAF-6865-2D,Main PC board ass'y
U2 1W204566-2D NAAF-6866-2D,Input/Output PC board ass'y
U3 1W204567-2D NAAF-6867-2D,OP amplifier PC board ass'y
U4 1W204568-2D NAAF-6868-2D,Power supply PC board ass'y
U5 1W204569-2D NAAF-6869-2D,Power transformer PC board ass'y
U7 1W204571-2D NAAF-6871-2D,Volume PC board ass'y
U8 1W204572-2D NAAF-6872-2D,PC board for holder
U9 1W204573-2D NAAF-6873-2D,Standby LED PC board ass'y
B25 70-015-420-02 4 x 20,Self tapping screw

D933
Q951
GI
O
Q952
GI
O
D932
D931
R319
4.7K
R321
4.7K
C366
-14.4V
1
+14.4V
1
+5.6V
1
-B
1
GND
1
+B
1
C931
C912 C911
D911
D_ARRAY
T901
POWER TRANS
AC IN
AUTO_
STANDBY
CANCELSW
R328
LEVEL
Q303
Q302
(2/2)
POWERAMP
Q301
Q302
(1/2)
LPF
12DB/OCT
50-200HZ
LPF
12DB/OCT
50-200HZ
BAL
AUTO_STANDBY
ON/OFF
CIRCUIT
MUTE
CIRCUIT
THERMAL
PROTECTION
CIRCUIT
CUTOFFFREQUENCY
VOLUME
RCAIN
SPEAKER
INPUT/OUTPUT
NAETC-6867-2
NAETC-6870-2
+21dB
NAAF-6866-2
5OHM
SPEAKER
NAAF-6865-2
NASW-6868-2
NAAF-6866-2
AC120VMDD
NAPS-6869-2
-6dB
+9.5dB
+28dB
-19dB
SKW-50
BLOCK DIAGRAM

SKW-50
SCHEMATIC DIAGRAM U2 Input/Output PC board
U3 OP amplifer PC board
U1 Main PC board
U7 Volume PC board
U9
Standby LED PC board
5.5
5.6
0
0
-0.6
0
5.0
4.9
5.4
0
5.6
5.4
0.40.4
0
0
-37.6
-15.0
-14.4
14.4 37.6
15.0
P301
JL953A
JL953B
S301
P302
R306
12K
R302
100K
R304
100K
R314 2.2K
R312
4.7K
R308
100
R310
100
R321
4.7K
R316
10K
R320
10K
R317 5.6K
R315
5.6K
R303
100K
R301
100K
R313 2.2K
R311
4.7K
R309
100
R307
100
P304A
P304B
JL641B JL641A
Q604
DTA124ES
Q621
DTC124ES
P604
P623
D951
MTZJ15C
D952
MTZJ15C
D622
D621
MTZJ2.7B
Q507
2SA949-Y
Q505
2SA949-Y
Q509
2SA949-Y
Q952
2SB941
Q605
2SA933S-S
Q603
2SA933S
Q606
2SA933S-S
Q506
2SC2229-Y
Q510
2SC2229-Y
Q503
2SC2240
Q504
2SC2240
Q502
2SC1775
Q501
2SC1775
Q951
2SD1266
Q622
2SC1740S-S
Q
2SC17
P501
D615
1SS133
D633
1SS133
D627
D628
R328
(2/2)
R328
20KA
(1/2)
JL303B
JL303A
Q303
M5218
5
67
Q302
M5218
3
21
Q301
M5218
3
21
Q624
M5218
3
21
Q624
M5218
58
6
4
7
Q303
M5218
38
2
4
1
Q301
M5218
58
6
4
7
Q302
M5218
58
6
4
7
C339
0.1
C340
0.1
C502
151
C505
020
C503
151
C366
223Z
C318 102K
C316
102K
C315
102K
C317
102K
C630
104
C306
101
C527
47/50
C322
47/16
C501
220/6.3
C504
470/6.3
C621
10/50
C952
220/16 C951
220/16
C954
220/16 C953
220/16
C302
47/16
C301
47/16
C320
47/16
C305
47/16
C956
220/16
C955
220/16
C623
220/16
C622
10/50
R615
12K
(1/2W)
R355
2.2K
R349
47K
R346
470
R305
12K
R331
10K
R329
47K
R330
1K
R336
0
R508
47
(1/4W)
R511
82
(1/4W)
R512
82
(1/4W)
R
(1
R516
12K
R515
12K
R502
33K
R510
22K
R505
1K
(1/4W)
R506
1K
(1/4W)
R507
33K
R527
1K
R509
330
R504
270
R503
5.6K
R522
220
R521
220
R501
1K
R371
1K
R372
8.2K
R621
5.6K
R622
100K
R952
47(1/4W)
R954
6.8K(1/2W)
R953
6.8K(1/2W)
R951
47 (1/4W)
R610
1K
R323
22K
R611
100K
R639
100K
R60
100
R60
2.2
M
R607
10K
R633
120K
R631
39K
R630
820K
R613
22K
R632
470K
R629
390K
R638
1K
R627
22
R318
18K
R326
100K
R319
4.7K
R324
0
R327
100K
R322
22K
R612
22K
R636
39K
R626
10K
R628
22
R625
10K
R623
180
R624
150K
NAAF-6865-2
NAETC-6870-2
NAAF-6866-2
LEVEL
LEVELSP
INPUT/OUTPUT
-37.9V
37.9V
37.9V
-38.4V
-37.8V
LCH
RCH
SWCANCELPOWER
AUTO
INPUT

NOTE
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY.
REPLACE ONLY WITH PART WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL)
ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030 3pF 330 33pF 331 330pF 333 0.033uF
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OFTHE PARTS.
EX)
CIRCUIT IS SUBJECT TO CHANGE FOR IMPRIVEMENT.
PRINTING SIDE
AV
CAUTION
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD.REPLACE
ONLY WITH FUSE OF SAMETYPE
AND RATING INDICATED.
ATTENTION
AFIN D' ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENOIE. REPLACER UNIOUEMENT
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
AV
SKW-50
SCHEMATIC DIAGRAM
U5 Power transformer PC board
U4
Power switch PC board
U1 Main PC board
U3 OP amplifer PC board
U7 Volume PC board
U9 Standby LED PC board
0
5.6
0.1
5.5
5.6
1
0.6
5.0
1.6V
-1.6
-1
D911
RS403L
E810
R544 100B
P305A
P305B
R528
330
(1/2W)
S901
P901
F9012A/125V
P902C
P902B
T901
NPT-1396J
NPT-1396D
JL911B
JL641B JL641A
JL911A
Q604
DTA124ES
D641
SML-1216W
P604
D933
MTZJ5.6B
Q517
2SA933S-S
Q507
SA949-Y
Q505
SA949-Y
Q509
2SA949-Y
Q514
2SA1837
Q519
2SB647A-C
Q516
2SA1941
2SA1695
0
5
A
933S-S
Q603
2SA933S
Q541
2SC3423
Q506
2SC2229-Y
Q510
2SC2229-Y
Q515 2SC5198
2SC4468
Q513
2SC4793
Q518
2SD667A-C
Q601
2SC1740S-S
Q602
2SC1740S-S
P501A
P902A
P901A
P535A
P531
D931
D932
D601
1SS133
R356 20KB(2/2)
R356
20KB
(1/2)
Q305
M5218
5
67
Q305
M5218
38
2
4
1
C343
124
C341
124
C347
124
C345
124
C902
472M
C901
103M
C520
224
C519
224
C514
101
C903
104J
C904
104J
C344
47/16
C517
10/50
C528
10/50
C526
10/50
C912
4700/50
C911
4700/50
C931
10/50
C601
33/35
R357
5.6K
R360
2.2K
R358
0
R359
100K
R367
1K
R366
5.6K
R355
2.2K
R349
47K
R534
100
R533
3.3
(1W)
R511
82
(1/4W)
R512
82
(1/4W)
R514
82
(1/4W)
R513
82
(1/4W)
R516
12K
R515
12K
R543
100
R532
0.22
(5W)
R531
0.22
(5W)
R526
150
(1/2W)
R517
3.3KR541
820
R542
150
R932
820(1W)
R931
820
(1W)
R602
PTH9M04BC222
R601
22K
R603
330K R934
1K
(1/2W)
R933
10K
R609
100K
R606
2.2M
R605
180K
R608
100K
R604
680K
R607
10K
MDD TYPE
120V/60HZ
(MJJ)(MDD)
(MJJ)
(MDD)
NAETC-6873-2
NASW-6868-2
NAPS-6869-2
NAAF-6867-2
CROSSOVER
AC-G
AC-H
-39.0V
-37.9V or
or
-39.0V
39.0V
17.1V

SKW-50
PARTS LIST
PC BOARD 1
MAIN PC BOARD(NAAF-6865-2D)
CIRCUIT NO. PART NO. DESCRIPTION
IC
Q624 22240369 M5218AP
Transistors
Q501,Q502 2210755 or 2SC1775A-E or
2210756 or 2SC1775A-F or
2215115 or 2SC1775-E or
2215116 2SC1775-F
Q503,Q504 2211406 2SC2240-BL
Q505,Q507 2211354 2SA949-Y
Q506,Q510 2211634 2SC2229-Y
Q509 2211354 2SA949-Y
Q513 2202800 2SC4793
Q514 2202790 2SA1837
Q517,Q603 2213354 or 2SA933S-R or
2213355 or 2SA933S-S or
2215995 KTA1267-GR
Q518 2215163 2SD667A-C
Q519 2215173 2SB647A-C
Q601,Q602 2213284 or 2SC1740S-R or
2213285 or 2SC1740S-S or
2215864 KTC3199-GR
Q604 2215780 or KRA103M or
2212600 or DTA124ES or
2213580 RN2203
Q605,Q606 2213354 or 2SA933S-R or
2213355 or 2SA933S-S or
2215995 KTA1267-GR
Q621 2215810 or KRC103M or
2213160 or DTC124ES or
2214220 RN1203
Q622 2213285 or 2SC1740S-S or
2213284 or 2SC1740S-R or
2215864 KTC3199-GR
Diodes
D601,D615 223163 or 1SS133 or
223205 1SS270A
D627,D628 223163 or 1SS133 or
223205 1SS270A
D633 223163 or 1SS133 or
223205 1SS270A
D911 22380021 RS403L
D931,D932 223163 or 1SS133 or
223205 1SS270A
D621,D622 224470272 MTZJ2.7B
D933 224470562 MTZJ5.6B
D951,D952 224471503 MTZJ15C

SKW-50
PARTS LIST
PC BOARD 1
MAIN PC BOARD(NAAF-6865-2D)
CIRCUIT NO. PART NO. DESCRIPTION
IC
Q624 22240369 M5218AP
Transistors
Q501,Q502 2210755 or 2SC1775A-E or
2210756 or 2SC1775A-F or
2215115 or 2SC1775-E or
2215116 2SC1775-F
Q503,Q504 2211406 2SC2240-BL
Q505,Q507 2211354 2SA949-Y
Q506,Q510 2211634 2SC2229-Y
Q509 2211354 2SA949-Y
Q513 2202800 2SC4793
Q514 2202790 2SA1837
Q517,Q603 2213354 or 2SA933S-R or
2213355 or 2SA933S-S or
2215995 KTA1267-GR
Q518 2215163 2SD667A-C
Q519 2215173 2SB647A-C
Q601,Q602 2213284 or 2SC1740S-R or
2213285 or 2SC1740S-S or
2215864 KTC3199-GR
Q604 2215780 or KRA103M or
2212600 or DTA124ES or
2213580 RN2203
Q605,Q606 2213354 or 2SA933S-R or
2213355 or 2SA933S-S or
2215995 KTA1267-GR
Q621 2215810 or KRC103M or
2213160 or DTC124ES or
2214220 RN1203
Q622 2213285 or 2SC1740S-S or
2213284 or 2SC1740S-R or
2215864 KTC3199-GR
Diodes
D601,D615 223163 or 1SS133 or
223205 1SS270A
D627,D628 223163 or 1SS133 or
223205 1SS270A
D633 223163 or 1SS133 or
223205 1SS270A
D911 22380021 RS403L
D931,D932 223163 or 1SS133 or
223205 1SS270A
D621,D622 224470272 MTZJ2.7B
D933 224470562 MTZJ5.6B
D951,D952 224471503 MTZJ15C

SKW-50
PARTS LIST
PC BOARD 2
MAIN PC BOARD(NAAF-6865-2D)
CIRCUIT NO. PART NO. DESCRIPTION
Capacitors
C501 354722219 220uF,6.3V,Elect
C504 354724719 470uF,6.3V,Elect
C517,C526 354781009 10uF,50V,Elect
C527 354784709 47uF,50V,Elect
C528,C621 354781009 10uF,50V,Elect
C601 354763309 33uF,35V,Elect
C622,C931 354781009 10uF,50V,Elect
C912 3504349 4700uF,50V,Elect
C923 354742219 220uF,16V,Elect
C951-C954 354742219 220uF,16V,Elect
C502,C503 374721515 150pF+/-10%,50V,Plastic
C519,C520 374722244 0.22uF+/-5%,50V,Plastic
C630 374721044 0.1uF+/-5%,50V,Plastic
C903,C904 374731044 0.1uF+/-5%,100V,Plastic
Resistors
R533 453630334 RNU1WCJ-3.3
R531,R532 4500018 BPR58FK-0.22
R526 443521514 RS1/2WBJ-150
R528 443523314 RS1/2WBJ-330
R615 443521234 RS1/2WBJ-12K
R934 443521024 RS1/2WBJ-1K
R953,R954 443526824 RS1/2WBJ-6.8K
R931,R932 443628214 RS1WBJ-820
R544 5210359 N06HR100BC
Clamp
E812 260224 CP-1S
Sockets
JL641 2009990604UL NSAS-6P0818
P501 2009990602UL NSAS-4P0815
Plugs
JL641A 25055133 NPLG-3P117
P531,P604 25055038 NPLG-2P29
P535A 25055165 NPLG-2P149
P623 25055038 NPLG-2P29
JL953A 25055627 NPLG-6P589
Holders
E813 27190608-1 (CRAMP) UA-0 V0
JL911A 25051107 NSCT-3P894

SKW-50
PARTS LIST
PC BOARD 3
INPUT/OUTPUT PC BOARD(NAAF-6866-2D)
CIRCUIT NO. PART NO. DESCRIPTION
ICs
C301,C302 22240369 M5218AP
Capacitors
C301,C302 354744709 47uF,16V,Elect
C305,C320 354744709 47uF,16V,Elect
C955,C956 354742219 220uF,16V,Elect
Jack
P301 25045549 NPJ-2PDBL370
Slide switch
S301 25065286 NSS-22112
Terminal
P302 25060288 NTM-8PDML219
Holders
JL303A 25051089 NSCT-5P876
JL953B 25051090 NSCT-6P877
OP AMPLIFIER PC BOARD(NAAF-6867-2D)
ICs
Q303,Q305 22240369 M5218AP
Capacitors
C322,C344 354744709 47uF,16V,Elect
C339,C340 374721044 0.1pF+/-5%,50V,Plastic
C341,C343 374721244 0.12pF+/-5%,50V,Plastic
C345,C347 374721244 0.12pF+/-5%,50V,Plastic
Sockets
P304 2009990672UL NSAS-6P0935
P305 2009990601UL NSAS-12P0814
Plags
P304A 25055234 NPLG-3P218
P305A 25055237 NPLG-6P221
P501A 25055233 NPLG-2P217
Wire trap
JL303B 25055626 NPLG-5P588
POWER SWITCH PC BOARD(NASW-6868-2D)
Push switch
S901 25035550 NPS-111-L512P
Capacitor
C911 3504349 4700uF,50V,Elect

SKW-50
PARTS LIST
PC BOARD 4
POWER TRANSFORMER PC BOARD(NAPS-6869-2D)
CIRCUIT NO. PART NO. DESCRIPTION
Capacitor
C902 3300054 DE1310E472M-KH
Sockets
JL911B 25050280 NSCT-3P108
P902 2009990603UL NSAS-2P0817
Terminal
P901A 25060092 NTM-1S33
Plug
P902A 25055676 NPLG-2P632
Fuse holders
F901A,F901B 25052133 NSCT-1P2031
Cover
C902A 27301216 SB1925A
VOLUME CIRCUIT BOARD(NAETC-6870-2D)
CIRCUIT NO. PART NO. DESCRIPTION
Resistors
R328 5132475 N14RGL20KA25Z
R356 5132476 N14RGL20KB25Z
STANDBY CIRCUIT BOARD(NAETC-6873-2D)
CIRCUIT NO. PART NO. DESCRIPTION
LED
D641 225295 SML1216W

䇭䋱䋮Confirmin
g
o
p
erations
䋱䋭䋱 Confirmin
g
o
p
eration of auto standb
y
On/Off
a. Turn AUTO STANDBY switch on.
b. After no in
p
ut condition continues more than 10 seconds, short-circuited the terminal of P604.
Confirm that the indicator chan
g
es from red to
g
reen.
c. Next short-circuited the terminal of P604.
䇭䋲䋮Ad
j
ustment of idlin
g
current
a. Ad
j
ust the trimmin
g
resistor R544 so that the volta
g
e of P531 becomes 0.25mV.
(
Auto Standb
y
Switch is OFF
p
osition. No in
p
ut and no load.䋩
b. After 5 minuters, read
j
ust R544 so that the volta
g
e becomes 4mV.
䇭
ADJUSTMENT PROCEDURES
R544
4
4
P531
P
6
2
3
P
604
Confirm that indicator changes from green to red.
SKW-50

CAISSON DE BASSES AMPLIFIE
SKW-50
SKW-50
POWERDSUBWOOFERSYSTEM
OUTPUT
INPUT
FROM
AMP/RECEIVER
TOSPEAKERS(MONO)
SPEAKERLEVEL LINE
INPUT
AUTOSTANDBY
L
R
OFFON
B33
B36
B32
B31 B43
B35
B34
B37
B40
B39
B44
B45
The setting position before shimpment
( FRONT PANEL )
OUTPUT LEVEL ----- RIGHT ABOVE
CROSSOVER FREQUENCY ----- RIGHT ABOVE
POWER SW ----- OFF
( REAR PANEL )
AUTO STANDBY SWITCH ----- ON
The set is put for side.
SKW-50
PACKING VIEW

SKW-50
PARTS LIST
PACKING VIEW
REF NO. PART NO. DESCRIPTION
B31 62-000-394-01 MONO BLACK 3m,RCA Pin cord
B32 65-000-204-01 Foot
B33 80-000-470-01 Cushion
B34 80-000-470-11 Cushion
B35 84-001-923-01 Carton box
B36 85-000-400-11 500x1550x0.5t,Protection sheet
B37 85-000-354-21 Protection sheet
B39 29100097-1A 250x350,Poly bag
B40 29365090 Warranty card
B43 87-000-996-01 Instruction manual
B44 89-000-482-01 Label
B45 85-000-376-61 700 x 950,Poly bag

SKW-50
http://www.onkyo.co.jp/
HOMEPAGE
ONKYO U.S.A. CORPORATION
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.
Tel: [phone] Fax: [phone] E-mail: [email protected]
Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: [phone] Fax: [phone]
ONKYO CORPORATION