Service Manuals, User Guides, Schematic Diagrams or docs for : ONKYO Audio Onkyo SL105

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Onkyo SL105


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                                                                                         SL-105



                                                                                    Ref. No.3709
                                                                                          082001
                                            SERVICE MANUAL
                           SUB WOOFER SYSTEM

                                     SL-105 / HTP-2




                                                                    D-L5 x 5
                                                               SATELLITE SPEAKERS
                           SL-105
                      POWERED SUBWOOFER

        Black color : MPP model
Yellow color : MDT, MGT models



                                     MPP      230-240V AC, 50Hz
                                     MDT      120V AC, 60Hz
                                     MGT       220-230V 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.
                                                                         SL-105

 SERVICE NOTE
 1. Replacing the fuses


This symbol located near the fuses indicates that the fuse used is
fast operating type. For continued protection against fire hazard, re-
place with same type fuse. For fuse rating refer to the marking adja-
cent to the symbol.


Ce symbole indique que le fusible utlise est a rapide. Pour une pro-
tection permanente, n'untiliser que fusibles de meme type. Ce darni-
er est la qu le present symbol est appse.

 CIRCUIT NO. PART NO. DESCRIPTION

 CIRCUIT NO. PART NO.          DESCRIPTION
  F901,F903     252069 or       0.8A-SE-EAK or
                252236          800MA-SE-TL250V 
  F902          252159 or       2A-UL/T-237 or
                 252253         2A-T/UL-ST2 


 2. Safety-check out
After correcting the original service problem, perform the following
safety check before releasing the set to the customer. Connect the in-
sulating-resistance tester between the plug of power supply cord and
screw on the back panel.
Specifications: 3.3Mohm
                                                                                                                                                                         SL-105


PANEL VIEW
    Subwoofer SL-105

    Front panel                 2                                        3    Rear panel
                                                                                                                                                C
                                                                                     SL-105                             SPEAKER LEVEL                   LINE
                                                                                                                                                       INPUT
                                                                                                                                                               AUTO STANDBY

                                                                                                                        +   R
                                                                                                                                _   _   L   +
            SL-105                          POWERED SUBWOOFER                                                 INPUT
                                                                                                                FROM
                                                                                                         AMP/RECEIVER
                                                                                                                                                      L
                                      FREQUENCY          OUTPUT LEVEL                                                                               (MONO)

                                                                                                                                                                OFF    ON
                                                                                                            OUTPUT                                    R
                                                                                                          TO SPEAKERS
                                                                                                                        +   R   _   _   L   +


                                    50 Hz       200 Hz
                                                                                                                                                D              A B
                                                         MIN       MAX




                                                               POWER




                                                               1
                                                                                                   To AC outlet

1    Power switch (POWER) and indicator                                      A Low-level input jacks (LINE INPUT)
     Pressing this button turns the power on (the indicator                    Connect these jacks to the LINE OUT jacks of the
     lights). Pressing the button again turns the power off                    amplifier etc.
     (the indicator goes out).                                               B Auto standby switch (AUTO STANDBY)
     Red:        Unit is in standby mode                                       This switch is used to turn on and off the auto standby
     Green:      Unit is in operation                                          function.
2    Frequency adjusting knob (FREQUENCY)                                      ON: This activates the auto standby function.
     Use this knob to select the high-frequency range at                       If a constant level signal is not received from the
     which you wish to cut off the signal to the subwoofer.                    amplifier (or receiver) over a period of a few minutes,
     You can select any frequency between 50 Hz and 200                        the SL-105 automatically enters the standby state. If a
     Hz depending on the characteristics of the speaker                        constant level signal is later received from the amplifier
     system being used with the SL-105.                                        (or receiver), the power is automatically turned back on.
3    Output level adjusting knob (OUTPUT LEVEL)                                OFF: Deactivates the auto standby function.
     Use this knob to adjust the output level of the
     subwoofer.                                                                Notes:
                                                                                * The auto standby function operates on the existence
                                                                                  or absence of a constant level input signal. If the auto
                                                                                  standby function does not operate properly, try
                                                                                  slightly increasing (or decreasing) the output level of
                                                                                  the amplifier or receiver. (Note that output levels of
                                                                                  some amplifiers and receivers cannot be adjusted.
                                                                                  For more details regarding your components, refer to
                                                                                  the instruction manual supplied with them.)
                                                                                * If noise from peripheral components causes the or if
                                                                                  incorrect operation of the auto standby function,
                                                                                  outputting low volumes (i.e., during the nighttime)
                                                                                  causes the auto standby function to activate, turn off
                                                                                  the auto standby function.
                                                                                * The auto standbythe SL-105 is turned on.while the
                                                                                  power switch for
                                                                                                     function only operates

                                                                             C Speaker-level input terminals
                                                                               (INPUT FROM AMP/RECEIVER)
                                                                               Connect these input terminals to the speaker output
                                                                               terminals of your amplifier or receiver.
                                                                             D Speaker-level output terminals
                                                                               (OUTPUT TO SPEAKERS)
                                                                               The speaker-level signal to the front speakers is output
                                                                               from these terminals.
                                                                                                         SL-105


EXPLODED VIEW
(CABINET SECTION)




                                   S3
       Indicated in the exploded view of
                     an amplifier section.




                                                                                                    S9
                                                                                   E901




                                                         S1


                                                     P535




                     S10



                               S7                             S7

                                     S7
                                                    S7
                                                               S4




                                          S4


                                                                                               S4




                                                               S2
                                               S8
                                                                         S4




                                                                    S8
                                                                                          S8




                                                                              S8
                                                                                                               SL-105


 CHASSIS EXPLODED VIEW
 (AMPLIFIER SECTION)


                                                                     S6
                                                                                       S3



                    S5                                  U8
                          A18


              A18                               U7




                                                                                            U6
                                       U4


                                                                     A20
                                                        A5
                                                             A4    A15
                                           U3                                                U2
                                      A5                                                                        S7


                                                        A2                                                     A42 S7
                                               Q516           Q951
                                 Q541 A2                      Q952
                                                             A5                                                A42
                            Q515                Q516B        A4
                                                                                                  A4
                         R602 A2       Q515A                                                                         S7
                             A5                                            A8
                                                                                        S7
            T901

                                                                                                  S7
                                  A1                                                                                 S7
     F901                                                U1       E811

                                                                                                               A42
                                                                                                                 S7
U5                                                                               A48
                                                                                                         A49
                                A52
                                                                                A41
                                                                                                  S7
                                                                                                       A55

                                  A30                                                                  P901



                                A43

                   A43
                                                                                                                  SL-105


EXPLODED VIEW PARTS LIST                                                NOTE: THE COMPONENTS IDENTIFIED BY MARK
                                                                              ARE CRITICAL FOR RISK OF FIRE AND
                                               ELECTRIC SHOCK. REPLACE ONLY WITH
    REF. NO.          PART NO.       DESCRIPTION                              PART NUMBER SPECIFIED.
    A1                27160467       Heat sink, SKW-205AMP
    A2                801433         3SMS8W.SW+14B(BC), Self tapping screw
    A4                27130745       Bracket
    A5                838130088      3TTB+8B, Self tapping screw
    A8                27141661       Retainer
    A15                28184777      Cover
    A18               82143010       3P+10FN(BC), PAN head screw
    A20               28141322A      Cushion
    A21               28141417       Cushion, P t1x5x160
    A22               28141418       Cushion, Q t1x5x80
    A30                27100412      Chassis
    A41               27122929       Rear panel 
                      27122930       Rear panel 
                      27122931       Rear panel 
    A42               838430088      3TTB+8B(BC), Self tapping screw
    A43               830440109      4TTC+10C(BC), Self tapping screw
    A48               28141479       Cushion, t1X5X335
    A49               28141416       Cushion, O t1x5x195
    A52               28141334       Insulation sheet
    A55               27301941       Cord bushing, KF-41
    E811,E814         27255004       Clip
    E901              260208         Wire tie
    F901              252069         0.8A-SE-EAK or
                      252236         800MA-SE-TL250V, Fuse 
                      252159         2A-UL/T-237 or
                      252253         2A-T/UL-ST2, Fuse 
    P535              2009990611UL   NSAS-2P0833, Socket assy
    P901              253175         AS-CEE ZA, Power cord 
                      253272HIT      AS-UC-6#18, Power cord 
    Q515          *   2203063        2SC5198-O or
                  *   2202523        2SC4468-O or
                  *   2202524        2SC4468-Y or
                  *   2202526        2SC4468-P or
                  *   2203062        2SC5198-R, Transistor
    Q515A,Q516A       223021         TBM-51W 9043, Isolation plate
    Q516          *   2203053        2SA1941-O or
                      2202513        2SA1695-O or                CAUTION:
                  *                                              Replacement of the transistor of mark , if necessary
                  *   2202514        2SA1695-Y or                                                     *
                                                                 must be made from the same beta group (HFE) as the
                      2202516        2SA1695-P or                original type.
                  *
                  *   2203052        2SA1941-R, Transistor       NOTE:  European model
    Q541              2202104        2SC3423-Y or                            Taiwanese model only
                      2202103        2SC3423-O, Transistor                   Asian model only
    Q951              2202754        2SD1266-P, Transistor                   Yellow color model
                                                                             Black color model MPP only
    Q952              2202764        2SB941-P, Transistor
    R602              4000144        PTH9M04-2.2K, Thermistor
    T901              2301460        NPT-1396P, Power transformer 
                      2301487        NPT-1396D, Power transformer 
                      2301562        NPT-1396G, Power transformer 
                                                                                                                                                                                             SL-105


BLOCK DIAGRAM

   SPEAKER
   INPUT/OUTPUT                                                    NAAF-6866-3      NAETC-6870-3

                                                                                                                                                CUTOFF FREQUENCY
                                                                                                                                                   VOLUME
                    -19dB
                                            -6dB
                                                                                                                                                                                          SPEAKER
                                            R321                                                                                                                                           5OHHM




                                                                                               LEVEL
                                            4.7K                                                                   +21dB                                                 +28dB




                                                   R319

                                                          4.7K
                    BAL              Q301                                Q302




                                                                                        R328
                                                                        (2/2)
                                                                                                                                       LPF                   LPF
                                                                                                                    Q303                                                POWER AMP.
                                                                                                                                      12DB/OCT              12DB/OCT
                                                                                                                                       50-200HZ             50-200HZ
                                                                                                            NAETC-6867-3



    RCA IN
                            +9.5dB



                            Q302
                            (1/2)
             C366




                                                                            AUTO_
                                                                            STANDBY                                                                            THERMAL
                                                                                                                                      MUTE
                                                                            ON/OFF                                                                             PROTECTION
                                                                                                                                     CIRCUIT                   CIRCUIT
                                                                            CIRCUIT                         AUTO_
                                                                                                            STANDBY
                                                                                                          CANCEL SW

                                                                                                          NAAF-6866-3                                                  NAAF-6865-3


                                                              +5.6V                                                           D931
                                                                                                                                                         NASW-6868-3
                                                          1




                                                                                                            D933


                                                                                                                     C931




                                                                                                                              D932
                                                                        Q951
                                                          +14.4V
                                                                       O G I                                                                  T901
                                                          1                                                                                  POWER
                                                                                 Q952                                                        TRANS
                                                          -14.4V
                                                                                O G I
                                                          1
                                                                                                                   D911
                                                              +B                                                    D_ARRAY

                                                          1                                                                                                            AC IN
                                                                                                   C911




                                                                                                                                                                       MJJ AC100V
                                                                                                                                                                       M D TA C 1 2 0 V
                                                          GND                                                                                                          M P PA C 2 3 0 V
                                                                                                   C912




                                                          1                                                                                                            M G TA C 2 2 0 V
                                                                                                                                                      NAPS-6869-3
                                                          -B
                                                          1
                                                                                                                                                                                                                                                                                                                                                                                                             SL-105



              SCHEMATIC DIAGRAM

                                                              R318                                                                                                     NAAF-6866-3                                                       NAETC-6870-3
                                                              18K




                                                                                                                                                                                                                                                                          20KA
                                                                                                                                                                                                                                                  R328
                                                                                                                                                                                                                                                  (2/2)
                                                              C306
                              C305                                                                                                                                                   R323




                                                                                                                                                                                                                                                                   R328
                                                                                                                                                                                                                                          LEVEL




                                                                                                                                                                                                                                                                          (1/2)
      INPUT          R 3 0 54 7 / 1 6                         101                                                                                                                       22K
                                            2                                         R319          C320                                   R322                              4
                     12K                               Q302                                                                                                                        M5218
                                                                         1            4.7K                                                   22K                 6                                                                                  P304B
                                                                                                    47/16                                                               Q302
                     R306                   3                                                                                                                                                7
              P301




                                                              M5218
                                                                                                      R326                                                       5           8
                     12K
                                                                                                      100K
                                                                                                                                                            R324                                                                                    470                                               P304A
                      C366




                                                                                                                                                                                        220/16
                                                                                                                                                                             C955
                                                                                                                                                             0                                                                                     R346
                                                                                     R317




                      223Z
                                                                             5.6K
                                                C315
                                  102K




                               R307                              R301                       C301                                                                                                    R327




                                                                                                                                                                                        220/16
                                                                                                                                                                            C956
                                                                                                                                                                                                    100K                                                                                              5
                               100                               100K
                                                R311
                                     4.7K




                                                                                            47/16                                                                                                                                                          C340                                                                                                                                             R355
         SP LEVEL                                                                                                                                                                                                                                                          C322                                         7
                                                                                                                                                                                                                                                           0.1                                                Q303
                                                                                            C302




                                                                                                                                                                                                                 JL303A
                               R309                              R303                                                                                                                                                                                                     47/16                       6                                                                                                     2.2K




                                                                                                                                                                                                                                         JL303B
      INPUT/OUTPUT
                               100                               100K                                                                                                                                                                                                                                            M5218




                                                                                                                                                                                                                                                                  C339
                                                R313



                                                               C317
                                                       102K




                                                                                                                                                                                                                                                                                       R329
                                     2.2K




                                                                                            47/16                                                                                                                                                                                                                                                                                                                            R




                                                                                                                                                                                                                                                                                                47K
                                                                                                                                                                                                                                                            0.1
                                                                                                                                                                                                                                                                                                                 R331
                                                                                                                                                                                                                                                                                                                                                                                         R349                                5
                                                                                                                                                                                                                                                                                                                  10K
                                                                                                                                                                                                                                                                                                                                                                                          47K                                C
LCH
                                                R314

                                                       C318

                                                               102K




                                                                                                                                   8M 5 2 1 8
                                     2.2K
                        P302




                                                                                                              5                                                                                                                                                                                                                                                                                                               1
                                                                                                                                                    7                                                                                                                                                  R330
                               R310                              R304                                                         Q301
                                                                                                               6                                                                                                                                                                                          1K                                        3          8
                               100                               100K
                                                R312
                                     4.7K




                                                                                                                                   4                                                                                                                                                                                                                                      1
                                                                                                                                                                                                                                                                                                                                                          Q303
                               R308                              R302                                                             5.6K                                                                                                                                                                                                              2                                                                       C3
RCH
                               100                               100K                                                             R315                                                                                                                                                                                                                                                                                       12
                                                C316
                                  102K




                                                                                                                                                                                                                                                                                                                                                               4
                                                                                                            R316
                                                                                                                                                                                                                                                                                                                                          R336                     M5218
                                                                                                            10K                                                                                                                                                                                                                             0
                                                                                                                                    M5218
                                                                                                              3
                                                                                                                                                     1      R321
                                                                                                                              Q301
                                                                                                               2                                            4.7K

                       AUTO POWER CANCEL SW
                                                                                                                           R320
                                                                                    1K
                                                                                                                             10K
                                                                              R371
                                                                                                                                                                                                                                         P501
                                                                             R372
                                                                      8.2K




                                                                                                                                                                                                                                                                                                                                      R506                                                                                  R5
                                                                                                                                                                                                                                                                                                                     R505                                                      R511
                                                                                                                                                                                                                                                                                                                                                                                                              Q509           82
                                     S301




                                                                                                                                                                                                                                                                                                                      1K               1K                                        82
                                                                                                                                                                                                                                                                                                                                                                              (1/4W)                        2SA949-Y       (1/4
                                                                                                                                                                                                                                                                                                                 (1/4W)              (1/4W)
                                                                                                                                                                                                                                                                                                                                                              37.9V
                                                                                                                                           JL953B

                                                                                                                                                                                                                                                                                                                                                                                Q505
                                                                                                                                                                                                                                                                                                                                                                              2SA949-Y
                                                                                                                                                                                                                                                                                                                                                         37.9V                                                               R

                                                                                                                                           JL953A                                                                                                                                                                                                                                                                             8
       NAAF-6865-3
                                                                                                                                                                                                                                                                                                                   Q501              Q502
                                                                                                                                                                                                                                                                                                                2SC1775              2SC1775
                                                                                                                                             Q951                           R951
                                                                                                                                                                                                                                                              C501                R501                    0                                                         C505
                                                                                                                          14.4             2SD1266               37.6        47      (1/4W)
                                                                                                                                                                                                                                                            220/6.3                   1K                                                                            020
                                                                                                                         220/16




                                                                                                                                                                     15.0                                                                                                                                                             -0.6
                                                                                                              C953




                                                                                                                                                                                                                                                             C502                     R502            C503                                                          R507
                                                                                                                                                                                                                                                                                                                                                                                                              R515
                                                                                                                                                                                                                                                             151                       33K             151
                                                                                                                                                                            R953                                                                                                                                                                                    33K                                        12K
                                                                                                                                                                            6.8K(1/2W)                                                                                                                               R521             R522
                                                                                                                                           220/16
                                                                                                                                    C951




                                                                                                                                                                                                                                                                                                                      220             220                                        Q507
                                                                                                                                                                                                                                                                                                                                                                              2SA949-Y
                                                                                                                                                                      D951                                                                                                                                                                                                                                   R516
                                                                                                                                                                     MTZJ15C                                                                                                                                                                             R509                                                 12K
                                                                                                                                                                                                                                                                                                                                    R503                              0
                                                                                                                                                                                                                                                                                                                                                          330
                                                                                                                                                                                                                                                                                                                                    5.6K                                                            2SC2229-Y
                                                                                                                                                                                                                                                           R615
                                                                                                                                                                                                                                                           12K                                                 -37.8V                                               R508                       -37.9V
                                                                                                                                                                                                                                                                                                                                    Q503
                                                                                                                                    220/16




                                                                                                                                                                       D952                                                                               (1/2W)                                                                                                     47
                                                                                                                                     C952




                                                                                                                                                                                                                                                                                                                                                         R527
                                                                                                                                                                      MTZJ15C                                                                                                                                                                                      (1/4W)                                    Q510
                                                                                                                                                                                                                                                                                                                 Q504                                     1K
                                                                                                                                                                            R954                                                                                                                                                   2SC2240
                                                                                                              220/16




                                                                                                                                                         -15.0                                                                                                     C527                                                            -38.4V
                                                                                                               C954




                                                                                                                                                                            6.8K(1/2W)                                                                                                  R510                                                                                                      Q506
                                                                                                                                                                                                                                                                   47/50                 22K                                                                                                   2SC2229-Y
                                                                                                                                                                                                                                                                                                                2SC2240                                  C504
                                                                                                                                                                                                                                                                                                                                                                                                                          R514
                                                                                                                                                                                                                                                                                                                                   R504                                                         R512
                                                                                                    -14.4                                                        -37.6                                                                                                                                                                                  470/6.3                                                            82
                                                                                                                                                                                                                                                                   D615                                                             270                                                           82
                                                                                                                                                                            R952                                                                                  1SS133                                                                                                                        (1/4W)                   (1/4W)
                                                                                                                                            Q952
                                                                                                                                           2SB941                           47(1/4W)




                                                                                                                                                                                                                                                                                                                                    5.6                                                 Q604
                                                                                                                                                                                                                                                                                              5.4                                                                                                                         R608
                                                                                                                                                                                                                                                                                                                                                                              DTA124ES
                                            C621                                                                                                                                                                                                                                                                                                                                                                          100K
                                         10/50                                                                                                                                                                                                                                                                              Q606                                                                            5.6
                                                                                                                                                                                                                                                                                                                        2SA933S-S             4.9                                          Q603                     R609
                                                                                                                                                                                                   



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