Onkyo SKB-940 Service Manual

Onkyo SKB-940 Service Manual

7.1-ch home theater speaker package
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3 7 63 1515 0
- - Powered Subwoofer - -
"SKW-940"
TE
L 13942296513
www
.
http://www.xiaoyu163.com
7.1-CH HOME THEATER SPEAKER PACKAGE
MODEL
B MDC
B MPP
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 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.
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ao
y
i
http://www.xiaoyu163.com
8
SERVICE MANUAL
SERVICE MANUAL
HTP-940(B)
- - Front Speakers (L/R) - -
"SKF-940F"
- - Center Speaker - -
"SKC-940C"
Black model
Q Q
3
6 7
1 3
120V AC, 60Hz
230-240V AC, 50Hz
u163
.
2 9
9 4
2 8
Ref. No. 3961
- - Surround Speakers (L/R) - -
"SKM-940S"
- - Surround Back Speakers (L/R) - -
"SKB-940"
1 5
0 5
8
2 9
9 4
ON THE
m
co
HTP-940
9 9
062006
2 8
9 9

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Summary of Contents for Onkyo SKB-940

  • 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 NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE-CURRENT OR RESISTANCE...
  • Page 2 HTP-940 3 7 6 3 1 5 1 5 0 EXPLODED VIEWS-1 SKW-940 : POWERED SUBWOOFER <Note> S901 (POWER SWITCH) and U05 : MPP type only. S901 SP11 x 10 pcs. P901 x 2 pcs. A102 A103 Refer to "EXPLODED VIEWS-2"...
  • Page 3 HTP-940 3 7 6 3 1 5 1 5 0 EXPLODED VIEWS-2 SKW-940 : POWERED SUBWOOFER SP01a / SP01b SP08 SP07 SP04 L 1 3 9 4 2 2 9 6 5 1 3 x 8 pcs. SP09 SP02 x 4 pcs.
  • Page 4 http://www.xiaoyu163.com HTP-940 3 7 6 3 1 5 1 5 0 EXPLODED VIEWS-3 SP21a - SP21d SKF-940F <L> / SKF-940F <R> with Catching Holder (SP22) / without Terminal (SP32) SP31 SP32a / SP32b I N A L c h l a c i t e R c h I N A...
  • Page 5 http://www.xiaoyu163.com HTP-940 3 7 6 3 1 5 1 5 0 EXPLODED VIEWS-4 SKC-940C SP41a / SP41b with Catching Holder (SP42) / without Terminal (SP52) I N A SP52 SP51 l a c G r e SP53a / SP53b TWEETER WOOFER L 1 3 9 4 2 2 9 6 5 1 3 WOOFER...
  • Page 6: Exploded Views

    http://www.xiaoyu163.com HTP-940 3 7 6 3 1 5 1 5 0 EXPLODED VIEWS-5 SKM-940S <L> / SKM-940S <R> SP71 SP61a - SP61d with Catching Holder (SP62) / without Terminal (SP72) SP76 SP73a - SP73d x 2 pcs. SP75 L c h I N A B l a B l u...
  • Page 7 http://www.xiaoyu163.com HTP-940 3 7 6 3 1 5 1 5 0 EXPLODED VIEWS-6 SKB-940 <L> / SKB-940 <R> SP91 SP81a - SP81d with Catching Holder (SP82) / without Terminal (SP92) SP96 SP93a - SP93d x 2 pcs. SP95 L c h I N A l a c B r o...
  • Page 8: Main P.c.board

    HTP-940 3 7 63 1515 0 SCHEMATIC DIAGRAM SKW-940 : POWERED SUBWOOFER NAAF- LINE INPUT Q301(1/2) MAIN PC BOARD P301 NJM4558LD R301 R307 220* C302 C955 47/50 R305 223J 8.2K* E801 C303 OUTPUT LEVEL R505 R506 R511 Q509 (1/4W)
  • Page 9 http://www.xiaoyu163.com HTP-940 3 7 63 1515 0 NOTE THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY AF-8829 REPLACE ONLY WITH PART NUMBER SPECIFIED. VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL). ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED. ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
  • Page 10 HTP-940 3 7 63 1515 0 PRINTED CIRCUIT BOARD VIEWS-1 SKW-940 : POWERED SUBWOOFER MAIN PC BOARD (NAAF-8829) Component side R517 C315 Q517 R651 Q518 R545 C316 R541 R320 R319 Q503 R317 C506 C314 R544 J306 J303 Q509 R513...
  • Page 11: Adjustment Procedure

    HTP-940 3 7 63 1515 0 ADJUSTMENT PROCEDURE SKW-940 : POWERED SUBWOOFER / ADJUSTMENT OF IDLING CURRENT [When] 1. Exchange transistors (Q505 - Q519). 2. Exchange MAIN PC board ass'y (NAAF-8829). [Procedure] <Note> No speaker load and No input signal.
  • Page 12: Exploded Views Parts List

    ELECTRIC SHOCK. REPLACE ONLY WITH PART <MDC> : Canadian model only NUMBER SPECIFIED. <MPP> : European model only REF. NO. PART NAME DESCRIPTION Q'TY PART NO. (SN) REMARKS SKW-940 (B) : POWERED SUBWOOFER EXPLODED AMPLIFIER SECTION EXPLODED Q515 2SC5359-R 2203082 EXPLODED Q515 or...
  • Page 13 2/7 PAGE 3 7 63 1515 0 SP01b CABINET ASS'Y SKW-940 (B) MPP 000-SKW940SMPPSER <MPP> EXPLODED SP02 FOOT (PLASTIC) D249-W54001B-00 EXPLODED SP03 CUSHION Dia17.5 x 2T 442-902133-00 EXPLODED SP04 WOOD SCREW 4STT + 20A (FOR SPx8 / FOOTx4) 837440204...
  • Page 14 EXPLODED SP61d CABINET ASS'Y SKM-940S (B) <R> MPP 000-1KM940SRBSER <R> <MPP> EXPLODED SP62 CATCHING HOLDER D230-DN3X01B-01 EXPLODED SP63 WOOFER W1367B (ONKYO ELE M) W1367B EXPLODED SP64 TWEETER TW3223A TW3223A EXPLODED SP65 S. ABSORBER 25t x 50 x 50 443-925404-00 EXPLODED...
  • Page 15: Printed Circuit Board Parts List

    <MDC> : Canadian model only ELECTRIC SHOCK. REPLACE ONLY WITH PART <MPP> : European model only NUMBER SPECIFIED. SKW-940 MAIN PC BOARD (NAAF-8829-1C / -1D) POWER TRANS. PC BOARD (NAPS-8831-1C / -1D) POWER SWITCH PC BOARD (NASW-8833-1C) CIRCUIT NO. PART NAME DESCRIPTION Q'TY PART NO.
  • Page 16 http://www.xiaoyu163.com 5/7 PAGE 3 7 63 1515 0 Q605 2SA933S-S 2213355T Q605 or 2SA933S-R (1) 2213354T Q605 or KTA1267-GR (1) 2215995T Q606 KRA103M 2215780T Q606 or DTA124ES (1) 2212600T Q607 2SA933S-S 2213355T Q607 or 2SA933S-R (1) 2213354T Q607 or KTA1267-GR (1) 2215995T Q608 2SC1740S-S...
  • Page 17 http://www.xiaoyu163.com 6/7 PAGE 3 7 63 1515 0 C601 VR C CE04W50V-10M(VR) 394681007T C602 VR C CE04W50V-10M(VR) 394681007T C603 VR C CE04W10V-470M(VR) 394634717T C603 or VX C CE04W16V-470M(VX_BLK) (1) 397344717T C604 VR C CE04W35V-33M(VR) 394663307T C604 or ELECT C CE04W35V-33M (1) 354763309T C903 TF C...
  • Page 18 http://www.xiaoyu163.com 7/7 PAGE 3 7 63 1515 0 R543 CARBON R R16J-180 417341814T R544 TRIM R N06HR100BC 5210359T R601 CARBON R R16J-5.6K 417345624T R602 CARBON R R16J-100K 417341044T R603 CARBON R R16J-150K 417341544T R604 CARBON R R16J-180 417341814T R605 CARBON R R16J-22 417342204T R609...
  • Page 19 Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8023 Fax: 072-831-8124 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 http://www.us.onkyo.com/ ONKYO EUROPE ELECTRONICS GmbH Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 http://www.eu.onkyo.com/...

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