Download SERVICE MANUAL POWERED SUBWOOFER MODEL SKW

SKW-50
R
SERVICE MANUAL
POWERED SUBWOOFER
MODEL SKW
SKW-50
50
MDD
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 NUMBER 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.
Ref. No . 3699
072001
SKW-50
SPECIFICATIONS
Type
Bass-reflex with built-in power
amplifier
Use
For superbass-range
reproduction
Frequency response
30-200Hz
(at maximum crossover frequency)
Crossover frequency
50-200Hz(variable)
Maximam output power 60W
4.7kohm
Input impedance
(for speaker-level input terminals)
12kohm
(for low-level inputjacks)
Speaker
Power supply
Power consumption
Dimensions(W x H x D)
Weight
Accessory
Other
20-cm woofer
AC 120V,60Hz
70W
235 x 490 x 409(mm)
9-1/4" x 19-5/16" x 16-1/8"
12.5kg
27.6lbs
Pin connector cable(1pc.)
Spacers(4pcs.)
Instruction manual
AUTO STANDBY ON/OFF
(with CANCELLING Switch)
Sensitivity
Speaker-level
Line
2V
45mV
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.
F901
PART NO.
252159 or
252253
DESCRIPTION
2A-UL/T237,Fuse or
2A-T/UL-ST2
SKW-50
PANEL VIEW
Frequency adjusting knob
Output level adjusting knob
POWERED SUBWOOFER
OUTPUT LEVEL
FREQUENCY
50 Hz
200 Hz
MIN
MAX
POWER
Power switch and indicator
Speaker-level input terminals
LINE
INPUT
SPEAKER LEVEL
+
R _
_
AUTO STANDBY
L +
INPUT
FROM
AMP/RECEIVER
L
(MONO)
OFF
OUTPUT
ON
R
TO SPEAKERS
+
R _
_
L +
Speaker-level output terminals
Low-level input jacks
Auto standby switch
To AC outlet
SKW-50
REAR PANEL CONNECTION
Connection with amplifier's
special subwoofer jack
LINE
INPUT
SPEAKER LEVEL
R _
+
_
AUTO STANDBY
L +
INPUT
FROM
AMP/RECEIVER
L
(MONO)
OFF
OUTPUT
R
TO SPEAKERS
R _
+
_
L +
ON
If your receiver(amplifier)is equipped with
a monaural subwoofer jack,connect it to the
SKW-50 Left (LINE INPUT)jack.
Connection with a preamplifier
Preamplifier
Output terminals
L
R
LINE
INPUT
SPEAKER LEVEL
+
R _
_
AUTO STANDBY
L +
INPUT
FROM
AMP/RECEIVER
L
(MONO)
OFF
OUTPUT
ON
R
TO SPEAKERS
+
R _
_
L +
+ R _
_ L +
SPEAKER LEVEL
+ R _
_ L +
+ R _
_ L +
INPUT
FROM
AMP/RECEIVER
OUTPUT
TO SPEAKERS
Connection with receiver's(amplifier's)
speaker terminals
SKW-50
EXPRODED VIEW
A13
A12
A18
A17
A3
AM
INPU
SP
EA
T
P/R FR
EC OM
EIV
ER
TO
OU
SP
TP
KE
R LE
VE
L
U3
UT
EA
KE
RS
LIN
INPUE
T
AU
TO
(MO
STA
ND
A6
BY
L
NO
)
R
OF
F
ON
A15
B25
Q952
Q951
A8
U2
A3
Q516
Q541
A1
A20
A23
A14
P901
B14
U1
A16
F901
Q515
R602
U5
T901
B28
A19
B17
B14
B6
U9
B19 B20
U4
B8
B27
A22
U8
P535
A11
B16
U7
B24
B2
B18
B23
B3
B10
SKW-50
PARTS LIST
EXPLODED VIEW
REF NO.
A1
A3
A6
A8
A11
A12
A13
A14
A16
A17
A18
A19
A20
A22
A23
B2
B3
B7
B8
B9
B10
B14
B16
B17
B18
B19
B20
B23
B24
B27
F901
P535
P901
Q515
Q516
Q541
Q951
Q952
R602
T901
U1
U2
U3
U4
U5
U7
U8
U9
B25
PART NO.
27160467
27130745
27141661
28184777
29-100-076-21
28141475
28141476
27122895A
830440109
28141473
28141474
28141334
27301941
260208
223021
W20170A
AZ200003-01
31-000-038-61
29-100-076-11
51-000-119-01
AZ000084-01
54-000-122-01
58-000-301-01
57-000-581-01
58-000-302-01
58-000-303-01
58-000-304-01
70-015-450-01
70-015-414-01
71-079-800-03
252159 or
252253
2009990611UL
253272HIT
2203063 or
2203062 or
2202524 or
2202526 or
2202523
2203053 or
2203052 or
2202514 or
2202516 or
2202513
2202104 or
2202103
2202754
2202764
4000144
2301487
1W204565-2D
1W204566-2D
1W204567-2D
1W204568-2D
1W204569-2D
1W204571-2D
1W204572-2D
1W204573-2D
70-015-420-02
DESCRIPTION
Heat sink
Bracket
Retainer
Cover
Cushion
t2X5X160,Cushion
t2X5X80,Cushion
Rear panel
4TTC+10C(BC),Self tapping screw
t2X5X415,Cushion
t2X5X195,Cushion
Cushion
Cord,bushing
Binder
TBM-51W 9043,Isolation sheet
Speaker ass'y
Cabinet ass'y
㱢105-㱢115 L=195,Paper duct
Cushion
Box ass'y
Base ass'y
VHZ 30t*150*150,Sound absorbent
Cover
Panel
Foot
Knob(A)
Knob(B)
㱢4*50,Self tapping screw
㱢4*14,Self tapping screw
Nuts
2A-UL/T-237,Fuse
2A-T/UL-ST2,Fuse
NSAS-2P0833,Socket
AS-UC-6#18,Power supply cord
2SC5198-O,Transistor
2SC5198-R,Transistor
2SC4468-Y,Transistor
2SC4468-P,Transistor
2SC4468-O,Transistor
2SA1941-O,Transistor
2SA1941-R,Transistor
2SA1695-Y,Transistor
2SA1695-P,Transistor
2SA1695-O,Transistor
2SC3423-Y,Transistor
2SC3423-O,Transistor
2SD1266-P,Transistor
2SB941-P,Transistor
PTH9M04-2.2K,Thermistor
NPT-1396D,Power transformer
NAAF-6865-2D,Main PC board ass'y
NAAF-6866-2D,Input/Output PC board ass'y
NAAF-6867-2D,OP amplifier PC board ass'y
NAAF-6868-2D,Power supply PC board ass'y
NAAF-6869-2D,Power transformer PC board ass'y
NAAF-6871-2D,Volume PC board ass'y
NAAF-6872-2D,PC board for holder
NAAF-6873-2D,Standby LED PC board ass'y
4 x 20,Self tapping screw
SKW-50
BLOCK DIAGRAM
SPEAKER
NAAF-6866-2
INPUT/OUTPUT
NAETC-6870-2
CUTOFF FREQUENCY
VOLUME
-19dB
-6dB
SPEAKER
5OHM
LEVEL
Q302
(2/2)
R328
Q301
4.7K
4.7K
BAL
R319
R321
+21dB
+28dB
LPF
LPF
POWERAMP
Q303
12DB/OCT
50-200HZ
12DB/OCT
50-200HZ
NAETC-6867-2
RCA IN
+9.5dB
C366
Q302
(1/2)
AUTO_STANDBY
THERMAL
MUTE
ON/OFF
CIRCUIT
AUTO_
STANDBY
CANCEL SW
CIRCUIT
PROTECTION
CIRCUIT
NAAF-6866-2
+5.6V
NAAF-6865-2
D931
G I
T901
Q952
-14.4V
1
O
POWER TRANS
G I
MDD AC120V
D911
D_ARRAY
+B
AC IN
C911
1
D932
O
C931
Q951
+14.4V
1
D933
NASW-6868-2
1
-B
1
C912
GND
1
NAPS-6869-2
SKW-50
SCHEMATIC DIAGRAM
U2 Input/Output PC board
20KA
R327
100K
5
C340
0.1
0.1
100
U3 OP amplifer PC board
P304A
R346
JL303B
C317
R309
470
C956
102K
4.7K
102K
47/16
100K
C318
C302
R311
R303
R313
47/16
100K
2.2K
R301
100
R314
R307
SP LEVEL
7
8
R324
0
C301
P304B
Q302
R317
102K
C315
C366
223Z
5.6K
12K
INPUT/OUTPUT
6
5
R326
100K
C322
47/16
R355
7
Q303
2.2K
6
M5218
47K
22K
M5218
R329
47/16
M5218
C339
4.7K
4
JL303A
1
R322
C955
3
C320
220/16
R306
LEVEL
22K
R319
220/16
Q302
2.2K
P301
12K
R328
R323
101
2
(1/2)
(2/2)
R328
C306
C305
R 3 0 54 7 / 1 6
INPUT
U7 Volume PC board
NAETC-6870-2
NAAF-6866-2
R318
18K
R331
R349
47K
100
100K
102K
C316
100
7
Q301
R330
6
4
5.6K
100K
R315
R316
8
3
1K
R302
1
Q303
2
4
M5218
R336
0
10K
M5218
3
R321
1
Q301
4.7K
2
A U T O P O W E R C A N C E LS W
R320
1K
10K
P501
R372
8.2K
R371
R506
R505
1K
S301
R511
82
(1/4W)
1K
(1/4W)
(1/4W)
Q509
2SA949-Y
37.9V
JL953B
Q505
2SA949-Y
U1 Main PC board
37.9V
JL953A
NAAF-6865-2
R951
37.6
47
(1/4W)
C501
R501
220/6.3
1K
0
C505
020
R502
33K
C502
151
R953
6.8K(1/2W)
-0.6
C503
151
-37.8V
C527
R510
22K
47/50
R504
D615
1SS133
R952
47(1/4W)
Q510
Q506
2SC2229-Y
C504
2SC2240
-37.6
2SC2229-Y
-37.9V
R508
47
(1/4W)
1K
2SC2240
-38.4V
R516
12K
0
Q503
Q504
R954
6.8K(1/2W)
Q952
2SB941
R509
330
R527
MTZJ15C
-14.4
Q507
2SA949-Y
5.6K
R615
12K
(1/2W)
R515
12K
33K
R503
D952
-15.0
R507
R522
220
R521
220
D951
MTZJ15C
C952
220/16
C951
15.0
220/16
C953
220/16
14.4
Q502
2SC1775
Q501
2SC1775
Q951
2SD1266
C954
220/16
270
DTA124ES
5.6
Q606
10/50
2SA933S-S
Q624
7
6
0
0
0.4
R627
22
D627
4
0.4
Q622
2SC1740S-S
P623
R630
820K
R628
22
M5218
R624
R629
390K
D628
R623
180
D621
D622
MTZJ2.7B
22K
R625
10K
39K
R626
M5218
2
Q624
R60
2.2M
Q605
R638
1K
2SA933S-S
R607
5.4
10K
0
10/50
Q
2SC17
R611
100K
1SS133
10K
C622
5.0
2SA933S
5.5
R633
120K
R631
39K
R636
100
R612
22K
R613
D633
100K
R60
Q603
R632
470K
150K
R622
P604
R639
100K
Q621
0
R610
1K
DTC124ES
1
3
C630
104
JL641B
5.6K
8
4.9
JL641A
5
(1
Q604
5.6
5.4
R621
R
R512
82
(1/4W)
470/6.3
C621
C623
220/16
RCH
R312
R304
R308
8M 5 2 1 8
5
R310
4.7K
P302
10K
LCH
Standby LED PC board U9
SKW-50
SCHEMATIC DIAGRAM
NOTE
THE COMPONENTS IDENTIFIED BY MARK
CROSSOVER
ARE CRITICAL FOR SAFETY.
REPLACE ONLY WITH PART WITH PART NUMBER SPECIFIED.
VOLTAGE (MEASURED WITH VOLTMETER)
20KB
R 3 5 6( 2 / 2 )
R356 (1/2)
20KB
U7 Volume PC board
ELECTROLYTIC CAPACITORS (
IS DC VOLTAGE. (NO INPUT SIGNAL)
) 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 OF THE PARTS.
P305B
EX)
PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPRIVEMENT.
P305A
2.2K
0
2.2K
R357
R349
47K
8
3
5.6K
C341
1
Q305
2
4
124
M5218
R358 R360
NAAF-6867-2
R355
CAUTION
R366
C344
5.6K
C345
47/16
R359
100K
5
7
Q305
V
A
6
M5218
124
ATTENTION
C347
124
C343
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD. REPLACE
ONLY WITH FUSE OF SAME TYPE
AND RATING INDICATED.
R367
1K
124
V
A
AFIN D' ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENOIE. REPLACER UNIOUEMENT
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
U3 OP amplifer PC board
P501A
U1 Main PC board
R511
82
(1/4W)
Q509
2SA949-Y
R513
82
(1/4W)
1.6V
Q517
Q513
2SA933S-S
R517
R541
820
R528
-1
C528
10/50
R532
0.22
(5W)
C526
10/50
100B
R544
150
R516
12K
100
R531
0.22
(5W)
R542
R515
12K
R534
150
(1/2W)
(1/2W)
10/50
Q541
2SC3423
2SC5198
or
2SC4468
R526
330
C517
Q507
SA949-Y
Q515
2SC4793
3.3K
1
Q516
2SC2229-Y
-37.9V
R543
100
2SA1941
or
2SA1695
-1.6
Q514
Q510
2SA1837
Q519
C514
Q506
2SC2229-Y
P535A
Q518
2SD667A-C
P531
Q505
SA949-Y
R533
3.3
(1W)
C519
224
C520
2SB647A-C
224
101
R514
82
R512
82
(1/4W)
(1/4W)
-39.0V
Q604
R608
100K
DTA124ES
5.6
D601
R609
0.1
Q602
R604
680K
0.6
5.5
2SC1740S-S
C601
33/35
R606
2.2M
05
A933S-S
R607
D933
R603
MTZJ5.6B 17.1V
330K
R934
1K
(1/2W)
R601
22K
0
R605
180K
10K
5.6
R933
10K
R931
820
(1W) D931
D932
D911
RS403L
39.0V
R932
8 2 0( 1 W )
U4
Power switch PC board
P902B
C931
10/50
C911
T901
S901
5.0
2SA933S
1SS133
P902A
N P T - 1 3 9 6 D( M D D )
N P T - 1 3 9 6 J( M J J )
JL911A
C912
4700/50
104J
E810
NAETC-6873-2
C904
R602
Q601
2SC1740S-S
PTH9M04BC222
JL911B
4700/50
JL641B
P902C
NASW-6868-2
F9012A/125V
(MJJ)(MDD)
AC-H
P901
C902
472M
-39.0V
JL641A
C901
103M
100K
C903
Q603
104J
P604
AC-G
P901A
D641
SML-1216W
NAPS-6869-2
U9 Standby LED PC board
U5 Power transformer PC board
MDD TYPE
120V/60HZ
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
E812
JL641
P501
JL641A
P531,P604
P535A
P623
JL953A
E813
JL911A
Clamp
260224
Sockets
2009990604UL
2009990602UL
Plugs
25055133
25055038
25055165
25055038
25055627
Holders
27190608-1
25051107
CP-1S
NSAS-6P0818
NSAS-4P0815
NPLG-3P117
NPLG-2P29
NPLG-2P149
NPLG-2P29
NPLG-6P589
(CRAMP) UA-0 V0
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
SKW-50
ADJUSTMENT PROCEDURES
䇭䋱䋮Confirming operations
䋱䋭䋱 Confirming operation of auto standby On/Off
a. Turn AUTO STANDBY switch on.
b. After no input condition continues more than 10 seconds, short-circuited the terminal of P604.
Confirm that the indicator changes from red to green.
c. Next short-circuited the terminal of P604.
Confirm that indicator changes from green to red.
䇭䋲䋮Adjustment of idling current
a. Adjust the trimming resistor R544 so that the voltage of P531 becomes 0.25mV.
(Auto Standby Switch is OFF position. No input and no load.䋩
b. After 5 minuters, read just R544 so that the voltage becomes 4mV.
䇭
P531
R544
4
P623
P604
SKW-50
PACKING VIEW
B33
The setting position before shimpment
( FRONT PANEL )
OUTPUT LEVEL
CROSSOVER FREQUENCY
POWER SW
----- RIGHT ABOVE
----- RIGHT ABOVE
----- OFF
( REAR PANEL )
AUTO STANDBY SWITCH
----- ON
B31
B32
B43
B45
B36
B39
The set is put for side.
SP
AM
EA
KE
INPU
T
P/R FR
EC OM
EIV
ER
TO
OU
SP
TP
R LE
VE
L
UT
EA
KE
RS
LIN
E
INPU
T
AU
(MO
TO
STA
ND
BY
L
NO
)
R
OF
F
ON
B40
B37
CAISSON DE BASSES AMPLIFIE
SKW-50
T
M
E
S
Y
S
R
0
-5
KW
S
R
E
F
O
O
W
D
E
W
O
P
B
U
S
B44
B35
B34
SKW-50
PARTS LIST
PACKING VIEW
REF NO.
B31
B32
B33
B34
B35
B36
B37
B39
B40
B43
B44
B45
PART NO.
62-000-394-01
65-000-204-01
80-000-470-01
80-000-470-11
84-001-923-01
85-000-400-11
85-000-354-21
29100097-1A
29365090
87-000-996-01
89-000-482-01
85-000-376-61
DESCRIPTION
MONO BLACK 3m,RCA Pin cord
Foot
Cushion
Cushion
Carton box
500x1550x0.5t,Protection sheet
Protection sheet
250x350,Poly bag
Warranty card
Instruction manual
Label
700 x 950,Poly bag
SKW-50
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/