Onkyo SKW-50 Service manual

SKW-50

SKW 50

z

Ref. No . 3699

R

SERVICE MANUAL

POWERED SUBWOOFER

-

072001

120V AC,60H

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.

p

y

p

p

)

(

y)

g

)

p

p

)

(

)

)

(

)

(

)

y

SPECIFICATIONS

Type Bass-reflex with built-in power Speaker 20-cm woofer

lifier Power suppl

am

Use For su

re

Frequency response 30-200Hz 9-1/4" x 19-5/16" x 16-1/8"
Crossover frequency50-200Hz(variable

Maximam out

ut impedance 4.7kohm Pin connector cable(1pc.

In

Sensitivit
Speaker-level 2V

Line 45mV

ut power 60W

12kohm Instruction manual

erbass-range Power consumption 70W

roduction Dimensions(W x H x D)235 x 490 x 409(mm

at maximum crossover frequenc

for speaker-level input terminals
for low-level inputjacks

Weight 12.5k

Accessory

Other AUTO STANDBY ON/OFF

AC 120V,60Hz

27.6lbs

Spacers(4pcs.

with CANCELLING Switch

SKW-50

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
F901
252253 2A-T/UL-ST2

252159 or 2A-UL/T237,Fuse or

P ANEL VIEW

Frequency adjusting knob Output level adjusting knob

POWERED SUBWOOFER

OUTPUT

FREQUENCY

50

Hz

200

Hz

LEVEL

MIN MAX

POWER

SKW-50

Power switch and indicator

Speaker-level input terminals

(MONO)

INPUT

L

R

LINE

INPUT

FROM

AMP/RECEIVER

OUTPUT

TO SPEAKERS

SPEAKER LEVEL

_L+_

R

+

_L+_

R+

Speaker-level output terminals

Low-level input jacks

Auto standby switch

To AC outlet

AUTO STANDBY

OFF ON

REAR PANEL CONNECTION

SKW-50

Connection with amplifier's
special subwoofer jack

AMP/RECEIVER

Preamplifier

Output terminals

L

R

SPEAKER LEVEL

_L+_

R

+

INPUT

FROM

AMP/RECEIVER

OUTPUT

TO SPEAKERS

_

_

R+

INPUT

OUTPUT

TO SPEAKERS

L+

FROM

SPEAKER LEVEL

_L+_

R

+

_

R+

LINE

INPUT

L

(MONO)

R

_

L+

AUTO STANDBY

OFF ON

LINE

AUTO STANDBY

INPUT

L

(MONO)

OFF ON

R

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

INPUT

FROM

AMP/RECEIVER

OUTPUT

TO SPEAKERS

_

R+

SPEAKER LEVEL

_L+_

R

+

_L+_

R+

_

Connection with receiver's(amplifier's)

L+

speaker terminals

SKW-50

EXPRODED VIEW

B14

B28

A17

B14
B6

B25

A20

P901

A18

A15

A16

A13

A12

S

P

EA

K

IN

E

A

P

R

MP

U

L

/R

T

F

EV

R

E

O

C

E

M
E
I

L

V

E

R

O

T

U

O

T

S

P

P

E

U

A

T

K
E

R

S

L

IN

E

IN

PU

T

A
U

T
O

S
T

A
N

D
B

Y

L

(
MO

N
O
)

R

A6

O
F

F

O
N

Q952

Q951

U2

A3

A3

U3

A8

Q516

Q541

A1

A14

A23

U1

F901

U5

Q515

R602

T901

A19

B17

P535

B20

B19

U9

B8

U4

B27

A22

U8

A11

B16

U7

B24

B2

B18

B23

B3

B10

PARTS LIST

EXPLODED VIEW

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
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
B24 70-015-414-01
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

105-㱢115 L=195,Paper duct

㱢

4*50,Self tapping screw

㱢

4*14,Self tapping screw

㱢

SKW-50

BLOCK DIAGRAM

SKW-50

SPEAKER
INPUT/OUTPUT

IN

RCA

C366

-19dB

BAL

+9.5dB

Q302

(1/2)

Q301

-6dB
R321

4.7K

R319

4.7K

NAAF-6866-2

Q302

(2/2)

AUTO_STANDBY

ON/OFF

CIRCUIT

NAETC-6870-2

LEVEL

R328

AUTO_
STANDBY
CANCEL

NAAF-6866-2

+21dB

Q303

NAETC-6867-2

SW

LPF

12DB/OCT

50-200HZ

MUTE
CIRCUIT

CUTOFFFREQUENCY
VOLUME

LPF

12DB/OCT
50-200HZ

THERMAL
PROTECTION
CIRCUIT

SPEAKER

5OHM

+28dB

POWERAMP

NAAF-6865-2

+5.6V

1

+14.4V

1

-14.4V
1

+B

1

GND

1

-B

1

Q951

O

D931

C931

C912 C911

D933

D911

D_ARRAY

I

G

Q952

I

O

G

D932

POWER TRANS

T901

NASW-6868-2

AC120VMDD

AC IN

NAPS-6869-2

SKW-50

Q

R

M

SCHEMATIC DIAGRAM

R318

18K

2

3

102K

4.7K

2.2K

2.2K

4.7K

102K

S301

Q302

C315

R311

R313

R314

R312

C316

C306

101

M5218

102K

C318

R301
100K

R303
100K

C317

102K

R304
100K

R302
100K

SWCANCELPOWER

1

8.2K

5.6K

1K

R371

R372

R319

4.7K

R317

C301

47/16

C302

47/16

C320

47/16

-14.4

R326

100K

R316

10K

INPUT

INPUT/OUTPUT

LCH

RCH

R305

12K

R306

P301

12K

C366

223Z

LEVELSP

AUTO

Main PC board

U1

NAAF-6865-2

47/16

R307

R309

P302

R310

R308

C305

100

100

100

100

U2

R322

22K

M5218

8

5

7

Q301

6

4

5.6K
R315

M5218

3

1

Q301

2

R320

10K

JL953B

JL953A

Q951

2SD1266

14.4 37.6

C953

220/16

C951

220/16

C952

220/16

-15.0

C954

220/16

Q952

2SB941

Input/Output PC board

NAAF-6866-2

R323
22K

4

M5218

6

Q302

7

5

8

R324

0

C955

220/16

R327
100K

C956

220/16

JL303A

R321

4.7K

R951

47

(1/4W)

15.0
R953

6.8K

(1/2W)

D951

MTZJ15C

D952

MTZJ15C

R954

6.8K

(1/2W)

-37.6

R952
47

(1/4W)

NAETC-6870-2

R328

(2/2)

LEVEL

P304B

470

R346

C340

0.1

0.1

JL303B

P501

C501

220/6.3

C502

151

R615

12K

(1/2W)

1SS133

R328

C339

C527

47/50

D615

20KA

(1/2)

C322

47/16

R501

1K

R502

33K

R510

R329

22K

P304A

5

6

47K

C503

R330

1K

0

151

Q303

M5218

R331

10K

R505

(1/4W)

2SC1775

R521

-37.8V

Q504

2SC2240

Volume PC board

U7

OP amplifer PC board

U3

7

3

2

R336

0

1K

Q501

220

R506

1K

(1/4W)

Q502

2SC1775

-0.6

R522

220

R503

5.6K
Q503

2SC2240

-38.4V

R504

270

8

Q303

4

37.9V

37.9V

R509

330

R527

1K

C504

470/6.3

M5218

C505

020

R507

33K

R508

47

(1/4W)

1

(1/4W)

2SA949-Y

2SA949-Y

0

R511

82

Q505

Q507

R349

47K

-37.9V

2SC2229-Y

2SC2229-Y

Q506

R512

82

(1/4W)

R355

2.2K

Q509

2SA949-Y

R515

12K

R516

12K

Q510

(1

C621

10/50

R621

5.6K

R622

100K

R623
180

C622

10/50

1K

Q604

DTA124ES

P604

2SA933S

Q605

2SA933S-S

JL641A

Q603

R607

10K

5.6

5.5
2SC17

JL641B

U9

5.0

R60

100

R60

2.2

5.4

8

5

6

0

D621

Q624

4

M5218

R624

150K

D622

MTZJ2.7B

0

7

R625

10K

D627

2

3

R626

10K

Q624

R627

22

R628

22

D628

M5218

1

P623

C623

R636

39K

220/16

R629

390K

R630

820K

0

Q621

0.40.4

R632

470K

R633
120K

R631

39K

0

DTC124ES

C630

104

Q622

2SC1740S-S

D633

1SS133

5.6

Q606

2SA933S-S

R613

22K

4.9

R638

1K

R639
100K

R611
100K

5.4

R612

22K

R610

Standby LED PC board

SKW-50

0

SCHEMATIC DIAGRAM

CROSSOVER

(1/2)

R356

20KB

P305B

P305A

R355

R349

47K

R511

82

(1/4W)

Q505

SA949-Y

Q507

SA949-Y

2.2K

Q509

2SA949-Y

R516

2SC2229-Y

-37.9V

Q510

Q506

2SC2229-Y

R512

82

(1/4W)

R515

12K

12K

C343

124

R513

(1/4W)

R514

82

(1/4W)

R357

5.6K
C341

124

82

820

R542

150

R544

100B

-39.0V

8

3

Q305

2

4

R517

3.3KR541
1

-1

Q541

2SC3423

R543

100

M5218

C344

1

47/16

R359
100K

Q517

2SA933S-S

C517

10/50

-1.6

C514

101

2.2K

R360

0

R358

1.6V

2SD667A-C

2SB647A-C

20KB

Q518

C528

Q519

(2/2)

R356

10/50

R528

330

(1/2W)

C526

10/50

Volume PC board

U7

NAAF-6867-2

R366

5

5.6K
C345

124

C347

124

2SC4793

2SA1837

Q513

Q514

6

R526

150

(1/2W)

Q305

M5218

P501A

Q515

R531

0.22
(5W)

R532

0.22

(5W)

Q516
2SA1941

or

2SA1695

7

R367

1K

2SC5198

or

2SC4468

R534

100

P531

R533

3.3
(1W)

C519

224

C520

224

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 OF THE PARTS.
EX)

PRINTING SIDE

CIRCUIT IS SUBJECT TO CHANGE FOR IMPRIVEMENT.

OP amplifer PC board

U3

Main PC board

U1

P535A

CAUTION

FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD. REPLACE
ONLY WITH FUSE OF SAME TYPE

V

A

AND RATING INDICATED.

ATTENTION

AFIN D' ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENOIE. REPLACER UNIOUEMENT
PAR UN FUSIBLE DE MEME TYPE

V

A

ET CALIBRATION COMME INDIQUE.

Q604

DTA124ES

Q603

P604

2SA933S

5

933S-S

R607

10K

JL641A

U9

R608
100K

5.6
R609

0.1

5.0

5.5

2SC1740S-S

JL641B

100K

R606

2.2M

Q602

SML-1216W

NAETC-6873-2

D641

R605
180K

0.6

R604

680K

C601

33/35

2SC1740S-S

Standby LED PC board

Q601

D601

1SS133

R603
330K

R601

22K

D933

MTZJ5.6B

R934

1K

(1/2W)

5.6

0

R933

10K

R602

PTH9M04BC222

17.1V

R931

820
(1W)

R932

820

C931

10/50

D931

D932

(1W)

E810

-39.0V

D911

RS403L

39.0V

C911

4700/50

C912

4700/50

C903

C904

104J

104J

JL911A

Power switch PC board

T901

(MDD)

NPT-1396D

(MJJ)

NPT-1396J

JL911B

NAPS-6869-2

U5

F901

(MJJ)(MDD)

Power transformer PC board

2A/125V

C902
472M

P902A

AC-H

AC-G

P901A

P902B

P902C

P901

U4

S901

C901

103M

NASW-6868-2

MDD TYPE

120V/60HZ

PARTS LIST

PC BOARD 1

SKW-50

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

PARTS LIST

PC BOARD 1

SKW-50

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

PARTS LIST

PC BOARD 2

SKW-50

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

PARTS LIST

PC BOARD 3

SKW-50

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

PARTS LIST

PC BOARD 4

SKW-50

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

p

g

j

(

j

ADJUSTMENT PROCEDURES

623

604

䇭䋱䋮Confirming operations

䋱䋭䋱 Confirming operation of auto standby On/Off

a. Turn AUTO STANDBY switch on.

SKW-50

b. After no in

Confirm that the indicator chan

c. Next short-circuited the terminal of P604.

Confirm that indicator changes from green to red.

ut condition continues more than 10 seconds, short-circuited the terminal of P604.

䇭䋲䋮Adjustment of idling current

a.

ust the trimming resistor R544 so that the voltage of P531 becomes 0.25mV.

Ad

Auto Standby Switch is OFF position. No input and no load.䋩

b. After 5 minuters, read

ust R544 so that the voltage becomes 4mV.

䇭

es from red to green.

P531

P

P

P A CKING VIEW

SKW-50

B33

The setting position before shimpment

( FRONT PANEL )
OUTPUT LEVEL ----- RIGHT ABOVE
CROSSOVER FREQUENCY ----- RIGHT ABOVE
POWER SW ----- OFF

( REAR PANEL )
AUTO STANDBY SWITCH ----- ON

B45

B37

B36

B31

B32

B43

B39

The set is put for side.

SPEA

KE

INPUT

A

R

M
P

LEV

/

F

R

R

E

O

C

EL

M
E
I

V

ER

OUTP

TO

S
P

E

UT

A

K

ER

S

LINE
INP

UT

A
U
T

O

S
T
A

N
D

B
Y

L

(
M

O
N

O
)

R

O
F
F

O

N

B40

B34

CAISSON DE BASSES AMPLIFIE

SKW-50

B35

BW

SU

D

ER

W

O

P

SKW-50

M

E

SYST

R

E

F

O

O

B44

PARTS LIST

PA CKING 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 car d
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

SKW-50

ONKYO CORPORATION

Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: [phone] Fax: [phone]

ONKYO U.S.A. CORPORATION

18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.
Tel: [phone] Fax: [phone] E-mail: [e-mail]

HOMEPAG

http://www.onkyo.co.jp/

E