Service Manuals, User Guides, Schematic Diagrams or docs for : ONKYO Audio SKW204 Onkyo-SKW204 actsub

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Onkyo-SKW204 actsub


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                                                                      SKW-204

                                                                Ref. No. 3946
                                                                      052006
                        SERVICE MANUAL


               POWERED SUBWOOFER
          MODEL SKW-204(B)/(S)/(Y)




                Black, Silver and Yellow models
B MDC 120V AC, 60Hz                  S MPA 230-240V AC, 50Hz
B MPP 230-240V AC, 50Hz              S MWT 120/220-240V AC, 50/60Hz
S MPP 230-240V AC, 50Hz              Y MWT 120/220-240V AC, 50/60Hz

              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 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.
                                                                                                                                                      SKW-204


                                                                                        A05a             
EXPLODED VIEWS-1                                           S901                         x 2 pcs.         U04 (VOLTAGE SELECTOR PC BOARD) : MWT type only.
AMPLIFIER SECTION                                                                                                F902
                                                               A103
           P901                                                                                                 U04
                                        SP11
                                        x 10 pcs.                 A05
                            A05                                   x 4 pcs.                                     U05
                            x 2 pcs.
              A102                                A02
                                                                                                                      A04
              A103                                                                      A03
                                                                                                 U02

               A05                                      A101
                                                                             A08              SP12                     Refer to "EXPLODED VIEWS-2"
               x 2 pcs.                                                      x 2 pcs.         x 4 pcs.
                                                             Q516                                                            SP13
                                                    U06   A07            A05                                                 x 2 pcs.
                                            A06
                                                                      Q541
                                                                                                                                         U03
                                A02
                                                                                                                                               T901
                                                                                    Q515
                                                                              A07
                                                                         A01
                                                                                                                                                      F901
                                                                             A11


                                                U01



                                           A05
                                           x 5 pcs.




  
  F901C (LABEL) : MPP/MPA type only.




                                                                                                                                                             SKW-204
  Part No. (SN) ---> Refer to
                                                                                          F901C
  "PRINTED CIRCUIT BOARD PARTS LIST".
                                                                                            SKW-204



EXPLODED VIEWS-2
SPEAKER SECTION


                                  SP01a - c




                                                         SP07a / b

                  SP06                                               SP04
                                                                     x 6 pcs.
     SP08                                                                       SP09a - c




                  SP02
                  x 4 pcs.

                  SP04
                  x 4 pcs.
                               SP05a / b      SP11
                                              x 2 pcs.
                    SP03
                    x 4 pcs.




                                                                                                  SKW-204
                                                                                                                                                                                                                                                                                                           SKW-204
                              A                                                                                                                  B                                                                                                 C                                                               D
    SCHEMATIC DIAGRAM                                                                                                            NAAF-8829                                                                                                                             NAAF-8830                                                              R101
                                                                                                                                                                                                                          FOR SKW-204AMP                                                                                                       20K
                                                                                                                                                                                                                                                                                                                     S101
                             U01 MAIN PC BOARD                                                                                                                                                                                                                                       PHASE SWITCH
                                                                                                                                                                                                                                                                                                       OFF          ON
    LINE INPUT                                                                                                           Q301(1/2)
     P301                                                                                                                NJM4558LD
1                            R301                                                                                        8
                                                                                                                3             1                                R307
                               1K
                                                                                                                                                                 220*




                                                                                                                                                                             FOR SKW-540AMP
                                                                                        C302                   2
       C955                                 (PP/PA/WT) 224                              47/50                           4

                                                                     R302
                                    C301

                                                                                                                        R305




                                                                                                                                                                                                J316
                                                                                                                                                                                                                                                                      R315




                                                                                                                                                                                                 NC
                                                                                                                                                          R306
                                                                                                                                                  47K
       223J
                                                                   20K
                                                                                                                                                                                                                                                                      3.3K
                                                                                                                        22K*                                                                                                                                                                                               Q302(2/2)




                                                                                                        R303
                                                                                                                                                                                                                                                                                                                           NJM4558LD

                                                                                              47K
            E801                                                                                                                                                                                                                                   R313                                               R316
                                                                                                                          C303                                                                                                                                                                        10K 5            8                      C314




                                                                                                                R304
                                                                                                                2.2K*
                                                                                                                           NC                                                                                                                      3.3K                 4
                                                                                                                                                                                                                                                                                                                                   7          47/16
                                                                                                                                                                                                                                                                  2
                                                                                                                                                                                                                                                   100/25                                             C312     6
                                                                                                                                                                                                                                                                              1
                                                              OUTPUT                                                                                                                                                                               C311           3     8                             334J             4




                                                                                                                                                                                                                                            R312
                                                                                                                                                                                                                           R311




                                                                                                                                                                                                                                            100K
                                                                                                                                                                                                                           100K
                                                              LEVEL                                                                                                                                                                                                   Q302(1/2)




                                                                                                                                                                                                                                                            R314
                                                                                                                                                                                                                                                            3.3K
                                                                                                                                                                                                                                                                      NJM4558LD




                                                                                                                                                                                                                                                                                                              C313
                                                                                                                                                                                                                                                                                                              124
                                                                                                                                                                         J317
                                                                                                                                                                 FOR SKW-204AMP
2
                                                                                                                                                                                                                                                           R505              R506                              R511                              R51
                                                                                                                                                                                                                                                            1K                 1K                                82               Q509            82
                                                                                                                                                                                                                                                          (1/4W)             (1/4W)                           (1/4W)           2SA949-Y           (1


                                                                                                                                                                                
                                                                                                                                                                                                                                                                                                               Q505
                                                                                                                                                                                NC : No mount of parts.                                                                                                     2SA949-Y




                                                                                                                                                                                                                                                                                                                                       C506
                                                                                                                                                                                                                                                                                                                             070
                                                                                                                                                                                                                                                        Q501                 Q502
                                                                                                                                                                                                                                                   2SC2240-BL                2SC2240-BL
                                                                                                                                                                                                                          C501 R501                0                                                C505
                                                                                               R951
                                                                                                                                                                                                                          47/50 1K                                                                  020
                                                                                              3.3K (2W)                                                                                                                                                C503
                                                                          MTZJ15C MTZJ15C




                                           C951                                                                                                                                                                                   R502                 224J                   -0.6                  R507
                                                                                            D951




                                                                                                                                                                                                                  C502
                                                                                                                                                                                                                                   47K                                                                                                    R515
                                                                                                                                                                                                                   NC
                                                                                                                                                                   P501B




                                           220/16                                                  POWER NEED TO CONFIRM                                                                                                                                    R521              R522                    33K                                 12K
3
                                                                                                                                                                                     NC




                                                                                                                                                                                                                                                             220              220                              Q507
                                                                                                                                                                                                                                                                                                            2SA949-Y                     R516
                                                                                            D952




                                           C952                                                                                                                                                                                                                                              R509      0                                  12K
                                                                                                                                                                                                                                                                            R503
                                           220/16                                                                                                                                                                                                                           5.6K              1K
                                                                                                   R952                                                                                                                                                                                                                       2SC2229-Y
                                                                                                                                                                                                                                                                                                  R508
                                                                                                                                                                                                     12K (1/2W)




                                                                                            3.3K (2W)                                                                                                                                                                                        R527   47
                                                                                                                                                                                                                                                                         Q503
                                                                                                                                                                                                                                                                        2SC2240-BL           270 (1/4W)                                   Q510
                                                                                                                                                                                                                                    R510
                                                                                                                                                                                                                   R651




                                                                                                                                                                                                                                    100K
                                                                                                                                                                                                                                                       MTZJ5.6B



                                                                                                                                                                                                                          C527                                                                                                 Q506
                                                                                                                                                                                                                                                        D501




                                                                                                                                                                                                                          1/50                                                               C504                            2SC2229-Y
                                                                                                                                                                                                                                                                            R504
                                                                                                                                                                                                     1SS133




                                                                                                                                                                                                                                                                                             220/16                         R512                 R51
                                                                                                                                                                                                                   D651




                                                                                                                                                                                                                                                                            2.2K                                                                  82
                                                                                                                                                                                                                                                                                                                             68
                                                                                                                                                                                                                                                                                                                           (1/4W)
                                                                                                                                                                                                                                  2SA933S
                                                                                                                                                                                                                                  Q604
                      C601
              10/50




4
                                                                                                                                                                                                                                                                                                                                                   5.
                      R601
               5.6K




                                           Q301(2/2)
                                           NJM4558LD                                                                                                                                                                                                                                      Q606
                                                     8                                                         D603                                                                                       Q603                                                                        KRA103M                5.0 R624
                                                5                                                                                                                                                     2SC1740S-S
                                                                                                               1SS133                                                                                                                                                                                            100K
                                                                                                    7                                                          R610
                                                                   6                                                                                                                                                                                   R619                           P631
                                                                                                                        R605                                     560K
                                                                                                                                                                                              R611
                                                                                                                                                                           820K




                                                                                                                         22                                                                                                                            22K
                                                                           4                                                                                                                                                                                                                                       R623      0.05
                                                                                                                                                        R609




                                                                                                                                                                                                                                                                                            Q607
                                                                                                                                                 39K
                                                                                                                                 470/16
                                                                                                                          C603




                                                                          R603                                                                                                                                                                                                           2SA933S               100K                     0.6     R627
                                                                            150K                                                                                                                                  470K                                                                                                                          680K
                                                                                                                                                                                                                                                                                                                Q608
                                                                                                                                          P633




                                                                                                                                                                                                                                                       R620             Q605
                                                                                                                                                 NC




                                                                                                                                                                                                                  R613                                                                                     2SC1740S-S
                                                                     D601   D602                                                                         Q602    120K                                                                                                   2SA933S
                                                                                                                                                         KRC103M R614                                                                   R617           100K
                                                                     MTZJ2.7B MTZJ2.7B                                                                                                                             D605                                                                                       R626
                                         R602


                                                             10/50 R604




                                                                                                                                                                                                                                         1K
                             100K

                                    C602 180




                                                                                                                                                                                                                   1SS133
                                                                                                                                                                                                                                                                                                              2.2M                               C60
                                                                                                                                                                                              R612




                                                                                                                                                                                                                                                                        R621
                                                                                                                                                                           39K




                                                                                                                                                                                                                                    R615                                                       R622                                R625
                                                                                                                                                                                                                                                    R616                1K                                                                       33/3
5                                                                                                                                                                                                                                   22K             100K
                                                                                                                                                                                                                                                                                                10K                                180K
                                                                                                                                                                                                          C950

                                                                                                                                                                                                       104/50

                                                                                                                                                                                                                                                                            P632A

                                                                                                                                                                                                                                                       GREEN RED
                                                                                                                                                                                                                                                              LED
                                                                                                                                                                                                                                             SKW-204
                                        E                                                                      F                                                         G                                             H
                                                                                                                                                  NOTE
R101            R101(2/2)                                                                                                                              THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR SAFETY
 20K             20K               U02 FREQUENCY ADJUSTMENT
                                                                                                                                                       REPLACE ONLY WITH PART NUMBER SPECIFIED.
                    FREQ.              PC BOARD                                                                                                        VOLTAGE (MEASURED WITH VOLTMETER)                  IS DC VOLTAGE.(NO INPUT SIGNAL).
                                               PHASE SWITCH AND FREQUENCY ADJUST.                                                                      ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
                    P301B                              FOR SKW-204AMP                                                                                  ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
                                                                                                                                                       ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
                                                                                                                                                       ELECTROLYTIC CAPACITORS (            ) ARE IN uF/WV.
                    P301A                                                                                                                              ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
                                                                                                                                                       EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
                                                                                                                                                       ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
                                                                                                                                                       THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
                                                                                                                                                       EX)                 PRINTING SIDE
                                                                                                                                                       CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
             R317




                                                                                              Q303(1/2)
      2.2K




                                               Q303(2/2)
                                               NJM4558LD                                      NJM4558LD                                                  CAUTION                                              ATTENTION
                            R320                                                             8
314                         10K            8                                         3
                                    5                                                                                                                    FOR CONTINUED PROTECTION                             AFIN D'ASSURER UNE PROTECTION
7/16                                                         7                                      1                                                    AGAINST FIRE HAZARD, REPLACE                         PERMANENTE CONTRE LES RISQUES
                            C315    6                                                2                                                                   ONLY WITH FUSE OF SAME TYPE                          D'INCENDIE, REMPLACER UNIQUEMENT
                                                                                                                                                                                                      A   V
                                                                                             4
                                                                                                                                       A       V
                                                                                                                                                         AND RATING INDICATED.                                PAR UN FUSIBLE DE MEME TYPE
                                                                                                                                                                                                              ET CALIBRATION COMME INDIQUE.
             R319




                            334J           4
      100K




                                                                     R321
                                                                      1K
                                    C316
                                    124




                                                                                                                                                                     THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
                                                                                                                                                                     THAT THE FUSE USED IS SLOW OPERATING TYPE
                                                                                                                                                                     FOR CONTINUED PROTECTION AGAINST FIRE
                                                                                                                                                                     HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
                                                                                                                                                                     RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL.

    R513
     82                                                           Q518                                                                                               CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
     (1/4W)                                                  2SC2235-Y
                                                                                                                                                                     E LENT.POUR UNE PROTECTION PERMANENTE,N'UTILISER
                                                              1.6V
                                                                                            Q513                                                                     QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
                                     Q517                                                                                                                            INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
                                   2SA933S-S
                                                                                                             Q515 2SC5359-O/R
             R541         R517                                                        2SC5171
              820         3.3K
                            1
                                                                                  R528              R526
                     -1                                                           390                82
                                                                                                                              P531




                                               C517                              (1/2W)            (1/2W)                                                            U03 POWER                                       U04 VOLTAGE
                     Q541                      10/50                                                        R531                     SPEAKER
                                                                                                                                                                         TRANSFORMER                                     SELECTOR
                                                                                                                                            JL535A/B




                    2SC3423                                                                                 0.22
                                                                                                            (5W)                                                         PC BOARD                                        PC BOARD
                                                                                   C526
                                                                         10/50




             R542                                                                                                                                                                         NAPS-8831                                  NASW-8832
                                                                  C528




                                                                                                                                                                              MWT                                      MWT
              150                                                                  10/50
                                                                                                    2SA1987-O/R                                                                                                       Lo
                                                                                                                       R533                                                   T901                                    P905B
             R544




                                                                                                                                                                                                                                             Lo
             100B




                                 R543                                                                                  3.3
                                 180                                                                                                                                          NPT-1539DQ
                                                                                                        Q516           (1W)                                                            06             P905A           P905B




                                                                                                                                                                                                                                      S902
                                                                                                                                                                                                                                             Hi
                                                                                                                                                                                                                      Hi
                                                                                                                                                                      P903B




Y                                         -1.6
             ADJUST.                                                                                                                                                                    5A/125V P907A
                                                                                                                        C519
             IDLING                                                                      Q514                                                                                          05 F901
                                                                                      2SA1930                           224
                                                                    Q519                                                                                                                                                             F902
                                                                 2SA965-Y                                               C520                                                           02                            P908A
                                                                                                                         224                                                                                                    1.6A/250V
                                                                                                                                                                                       01                             P908B
    R514                                                                                                                                                                                              P906A                          NASW-8833
     82 (1/4W)                                 C514
                                                101                                                                                                                                                                                               MWT
                                                                                                                                                                                                                      P906B    S901


                                                                                                                                                                                                      P902A
                                                                                                                                                                                                                              P901

                                                             +5.6V                                                                                                                                                 U05 POWER SWITCH
      5.6
                                                                                                                                                                      MPP/MPA             NAPS-8831                    PC BOARD
                                                                                                                                                                              T901
                                                                                                                                                                                                 F901                          NASW-8833
                                                                                                                                                                              NPT-1539P
                                                                                                                                                                      P903B




                                                                                                                                                                                            1.6A/250V               P906B            MPP/MPA
                                                                                                 D902                                                                                                 P907A
                                                                                                 RL1N4003                                                                                                               S901          POWER
                                                                 R904                 R901       or GP104003E                                                                                         P906A                           SWITCH
                                 D606
                                 1SS133                        1K                  820 (1W)
                                                             (1/2W)                                D903
                                                                                                                                               104J/100




R627                                                                                               RL1N4003
                                                                                                                                     C903




680K                               R628
                                                                                                                                                 NC




                                                                                      R902         or GP104003E             D901
                                                  MTZJ5.6B




                                                                                                                                                                                                      P902A                   P901
                                                                                                                         D3SBA20
                                                                          R903
                                                                 D904




                                   330K
                                                                 10K




                                                                                   820(1W)
                                    R629
                                     NC
                      Q609                                                          C909                                                                              MDC                 NAPS-8831
                                                                                                                                                             J903A




    C604                                                                            22/50                                  C905
                       NC
    33/35                                                                                                                 5600/71
                                                                                                                                                                              T901
                                                                                                                                                                                                 F901                          NASW-8833
                                   R701                                                                                                                                       NPT-1539D
                                                                                                                                                                      P903B




                                    NC                                                                                                                                                      5A/125V                 P906B            MDC
                                                                                                                                                                                                      P907A             S901          POWER
                                                                                                                                                                                                      P906A                           SWITCH
                                                                                                                                               104J/100




                                                                                                                           C906
                                                                                                                                     C904


                                                                                                                                                 NC




                                                                                                                          5600/71

                                                                                                                                                                                                      P902A                   P901
                                                                                                                                                                                                                                                                                                                                                               SKW-204
           A                                                                                                            B                                                                                                                                    C                                                                                                  D
    PRINTED CIRCUIT BOARD VIEWS-1



1       U01 MAIN PC BOARD (NAAF-8829)
               Component side



                                                                                                                                                                        R517                                                                                                                                                     C315

                                         25138829A




                                                                                                                                                                                                                                                                                      Q303
                                                                                                                                                                        Q517




                  



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