Onkyo SKW 50 Service Manual
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Onkyo SKW 50 Service Manual

Onkyo SKW 50 Service Manual

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See also: Instruction Manual
SERVICE MANUAL
R
POWERED SUBWOOFER
MODEL SKW-50
MODEL SKW 50
MDD
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
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.
120V AC,60Hz
ON THE
SKW-50
Ref. No . 3699
072001

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Summary of Contents for Onkyo SKW 50

  • Page 1 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...

  • Page 2: Specifications

    SKW-50 SPECIFICATIONS Type Bass-reflex with built-in power Speaker 20-cm woofer amplifier Power supply AC 120V,60Hz For superbass-range Power consumption reproduction Dimensions(W x H x D) 235 x 490 x 409(mm) Frequency response 30-200Hz 9-1/4" x 19-5/16" x 16-1/8" (at maximum crossover frequency) Weight 12.5kg Crossover frequency...

  • Page 3: Panel View

    SKW-50 PANEL VIEW Frequency adjusting knob Output level adjusting knob POWERED SUBWOOFER FREQUENCY OUTPUT LEVEL POWER Power switch and indicator Speaker-level input terminals LINE SPEAKER LEVEL AUTO STANDBY INPUT INPUT FROM AMP/RECEIVER (MONO) OUTPUT TO SPEAKERS Speaker-level output terminals Low-level input jacks Auto standby switch To AC outlet...
  • Page 4 SKW-50 REAR PANEL CONNECTION Connection with amplifier's special subwoofer jack LINE SPEAKER LEVEL AUTO STANDBY INPUT INPUT FROM AMP/RECEIVER If your receiver(amplifier)is equipped with (MONO) a monaural subwoofer jack,connect it to the OUTPUT TO SPEAKERS SKW-50 Left (LINE INPUT)jack. Connection with a preamplifier Preamplifier Output terminals LINE...
  • Page 5 SKW-50 EXPRODED VIEW IN P R LE LI N IN P ST AN Q952 Q951 Q516 Q541 P901 Q515 F901 R602 T901 B19 B20 P535...

  • Page 6: Parts List Exploded View

    SKW-50 PARTS LIST EXPLODED VIEW REF NO. PART NO. DESCRIPTION 27160467 Heat sink 27130745 Bracket 27141661 Retainer 28184777 Cover 29-100-076-21 Cushion 28141475 t2X5X160,Cushion 28141476 t2X5X80,Cushion 27122895A Rear panel 830440109 4TTC+10C(BC),Self tapping screw 28141473 t2X5X415,Cushion 28141474 t2X5X195,Cushion 28141334 Cushion 27301941 Cord,bushing 260208 Binder 223021...
  • Page 7 SKW-50 BLOCK DIAGRAM S P E A K E R N A A F - 6 8 6 6 - 2 N A E T C - 6 8 7 0 - 2 I N P U T / O U T P U T C U T O F F F R E Q U E N C Y V O L U M E - 1 9 d B...

  • Page 8: Schematic Diagram

    SKW-50 SCHEMATIC DIAGRAM Input/Output PC board Volume PC board N A E T C - 6 8 7 0 - 2 N A A F - 6 8 6 6 - 2 R 3 1 8 1 8 K C 3 0 6 C 3 0 5 R 3 2 3 L E V E L...
  • Page 9 SKW-50 SCHEMATIC DIAGRAM NOTE THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY. Volume PC board REPLACE ONLY WITH PART WITH PART NUMBER SPECIFIED. VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE. (NO INPUT SIGNAL) C R O S S O V E R ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV.

  • Page 10: Parts List

    SKW-50 PARTS LIST PC BOARD 1 MAIN PC BOARD(NAAF-6865-2D) CIRCUIT NO. PART NO. DESCRIPTION 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...
  • Page 11 SKW-50 PARTS LIST PC BOARD 1 MAIN PC BOARD(NAAF-6865-2D) CIRCUIT NO. PART NO. DESCRIPTION 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...
  • Page 12 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...
  • Page 13 SKW-50 PARTS LIST PC BOARD 3 INPUT/OUTPUT PC BOARD(NAAF-6866-2D) CIRCUIT NO. PART NO. DESCRIPTION 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...
  • Page 14 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...

  • Page 15: Adjustment Procedures

    SKW-50 ADJUSTMENT PROCEDURES Confirming operations 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.

  • Page 16: Packing View

    SKW-50 PACKING VIEW 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. IN P R LE LI N...
  • Page 17 SKW-50 PARTS LIST PACKING VIEW REF NO. PART NO. DESCRIPTION 62-000-394-01 MONO BLACK 3m,RCA Pin cord 65-000-204-01 Foot 80-000-470-01 Cushion 80-000-470-11 Cushion 84-001-923-01 Carton box 85-000-400-11 500x1550x0.5t,Protection sheet 85-000-354-21 Protection sheet 29100097-1A 250x350,Poly bag 29365090 Warranty card 87-000-996-01 Instruction manual 89-000-482-01 Label 85-000-376-61...
  • Page 18 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: onkyo@onkyousa.com HOMEPAGE http://www.onkyo.co.jp/...

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