Service Manuals, User Guides, Schematic Diagrams or docs for : ONKYO Audio A-933 hfe_onkyo_a-933_service_en

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                                                                                                                             A-933

                                                                                     Ref. No. 3876
                                                                                           032005
                            SERVICE MANUAL


                      INTEGRATED AMPLIFIER
                           MODEL A-933
                                                                                ON                             STANDBY




                                                                                1         2              3         4


                                                                                5         6              7         8


                                                                                9        10/0            >10      GROUP



                                                                                 FM              AM            CLEAR

                                                                                                 CD



                                                                                                 MD



                                                                                          TAPE /CDR




                                                       MD                                     VOLUME
                                                LINE        TAPE /CDR


                                           CD                               PRESET            MUTING                PRESET
STANDBY/ON



                                       TUNER                                                  VOLUME              SLEEP


           ON(G)                                                                              TIMER
         STANDBY(R)
                                        PHONO

                                                                                              ENTER
                                                                                                               INPUT

                                                                                MEMORY          REPEAT         DISPLAY



                                                                                RANDOM          P MODE         SCROLL



                                                                                                          CLOCK
                                                                                                           CALL




                                                                                              RC-613S




                                                                              RC-613S
                          Silver and Black models
                      S UPP, S MPP 230-240V AC, 50Hz
                      B UPP, B MPP 230-240V AC, 50Hz




                 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.
                                                                                                A-933

SPECIFICATIONS

 Power output :                                 80 W + 80 W (8        , 1 kHz, DIN)
 Dynamic power :                                270 W + 270 W (3        , Front)
                                                220 W + 220 W (4        , Front)
                                                110 W + 110 W (8        , Front)
 THD (total harmonic distortion) :              0.08% (1 kHz, 1 W)
 Damping factor :                               25 (Front, 1 kHz, 8     )
 Input sensitivity and impedance :              200 mV, 50 k    (LINE)
                                                2.5 mV, 50 k    (PHONO MM)
 Output level and impedance :                   200 mV, 2.2 k    (REC OUT)
 Phono overload :                               130 mV (MM, 1 kHz, 0.5%)
 Frequency response :                           10 Hz - 60 kHz, +1 dB -3 dB (CD)
 Tone control :                                 +8 dB, -8 dB, 100 Hz (BASS)
                                                +8 dB, -8 dB, 20 kHz (TREBLE)
                                                +10 dB, 80 Hz (SUPER BASS)
 SN ratio :                                     100 dB (LINE, IHF-A)
                                                70 dB (PHONO, IHF-A)
 Speaker impedance :                            4 - 16
 Power supply :                                 AC 230 - 240 V, 50 Hz
 Power consumption :                            100 W
 Stand-by power consumption :                   0.9 W
 Dimensions (W x H x D) :                       275 x 103 x 328 mm
 Weight :                                       7.5 kg


 Analog inputs :                                PHONO, TUNER, CD, LINE, MD, TAPE/CDR, MAIN IN
 Analog outputs :                               MD, TAPE/CDR
 Subwoofer pre outputs :                        1
 Speaker outputs :                              2 (A, B)
 Phones :                                       1




 Specifications and features are subject to change without notice.
                                                                                                               A-933


SERVICE PROCEDURE

 1. Replacing the fuses
                  This symbol located near the fuse indicates that the
  fuse used is show operating type, For continued protection against
  fire hazard, replace with same type fuse , For fuse rating, refer to
  the marking adjest to the symbol.

                Ce symbole indique que le fusible utilise est e lent.
  Pour une protection permanente, n'utiliser que des fusibles de meme
  type. Ce demier est indique la qu le present symbol est apposre.

  REF.NO.      NAME         DESCRIPTION          Q'TY     PART NO.       REMARKS
  F901         FUSE         3.15A-SE-EAWK          1      252076GR
  F902         FUSE         2A-SE-EAK              1      252074GR


 2. Initialize the unit.
  (1) Press and hold down the MAIN IN button, then press the STANDBY/ON button.
         All indicators light up ---> Standby
  (2) Disconnect the AC power cord from a wall outlet.


 3. Setting position before shipment.
  (1) POWER switch                  : ON
  (2) BASS                          : CENTER
  (3) TREBLE                        : CENTER
  (4) SUPER BASS                    : MIN.
  (5) VOLUME                        : MIN.


 4. EuP Lot6 correspondence, Add "D" to the end of serial numbers.
  Change T903, P TRANS, NPT-1938P, 2301539                 2301539A.
       old part (2301539)            old set

       new part(2301539A)            new set(EuP Lot6 correspondence, Add "D" to the end of serial numbers.)
                                                                                                                                                                                                  A-933


                                                                                                                                                                  A084
 EXPLODED VIEW                                                              U02                          A025
                                                                                                                                                                                        A083
                                                                                                         x 2 pcs.
                                                                P312                                                                   A082                                             x 2 pcs.
                                                                                                                     A002              x 9 pcs.
                   P901                                                                                                                                                                    A096



               P901A      A755             A002
                           x 8 pcs.        x 2 pcs.                           A002               E402
                                                                              x 4 pcs.
 A102                                                                  A045                    T901
                                                                       x 2 pcs.
            P201A
            x 2 pcs.                                                                                                                                A081                            A037
                                                             T902                                                       A037                                                        L=30mm x 2
                       A039                                                                                  P701
                                                                                                                        L=20mm           A003
                         A040                                                                                                            x 2 pcs.
A038                             A037                 U01
                                                                                  A032                                             A002
x 17 pcs.                        L=25mm                                           x 8 pcs.                                         x 3 pcs.                       U04
                                 x2                   A027
                                                                                   A002                                     A002
                                                                                                                            x 7 pcs.
                                                                   A002
                                                                   x 2 pcs.
                                  A037
                     F901C L=30mm                                                            A029          U08
                                A037                                                                                                                              A002
                                                                                                                                                                  x 2 pcs.
                                L=30mm
               A101 U09
                                                                                                                      U06 U13                                  A054 A057
                         F901                                                                                U14                                                                       A068 A063
                                                E401
            A002                                x 6 pcs.                            U11
                                                                          A044 A047                                                                                          A055
            A043                A002                   A033                          A002
                                x 2 pcs.               x 2 pcs.                              x 2 pcs.                                               A053
                                                                                                                                                                                              A065
                                                                                                             A007
                                                                                                         A005                      A073                        A055                         A066
                                                                                                         x 2 pcs.      A001        x 3 pcs.
                                                                                                        A002                            A057
                                                                                                        x 2 pcs.                                  A056
            U10                                                                                                                                          A064
                                                                                                                                         A068                                                    A071
                                                                                                                                                                              A051
                                      A021                                                                                                                                                   A072
                                                                                                                                       A062
                                                                                                         A037                                          A024
                                                                                                         L=10mm x 8                                    x 5 pcs.                            A075
                                                                                                                                                                                           x 2 pcs.
                                                                                                          A022
                                                                                                          x 4 pcs.                                  A069                      A061
                                                                                                                                                    x 2 pcs.




                                                                                                                                                                                                          A-933
                                                                                    A037
                                                            A024                    L=15mm       A024
                                                            x 6 pcs.                                                                                                  A067
                                                                                    x3           x 4 pcs.                                                             x 4 pcs.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  A-933
                                 A                                                                                                                        B                                                                                                                                                        C                                                                                                                                       D                                                                                 E                                                                                                             F                                                                                                                                           G                                                                                         H
    SCHEMATIC DIAGRAMS-1                                                                                                                                                                                                                                                                                                                                                                                                                                                                          To NADG-8505
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    (SD-2 : H4)
    PRE-AMPLIFIER SECTION / POWER SUPPLY SECTION
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   P702A
                                                                                                                                                                                                                                                                                         NAAF-8499 & NAAF-8500                                                                                                                                                                                                                                                                                                                                                                                                                            NAETC-8501 & NAETC-8502
                                                       L201
                                                     NCH-1358                                                                                                                                                                                                               U02                                                                                                                                                                                                                                                 TONE/DIRECT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     U04
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     VOLUME PC BOARD




                                                                    C281
                              P206
                                                                                                                                                                                                                                                                            PRE-AMPLIFIER PC BOARD




                                                                           102
                                                                                        C203
1                                                                                       22/25                                       NJM4580M-D




                                                                                                                                                                                                                                                                                                                                                                                                                                                                         JL302B
                                                                                                                                                                                                                                                                                                                            C301
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 NJM4580M-D                 C357                     SUPER
                                                                                                                              5                                                                                                                                                                                                                                     NJM4580M-D                                                                                                                                                                                                                                  5
                                                                                                                                                              C213                                                                                                      R301                                                47/25                                                                                                                                                                                                                                                                                                                           47/25                    BASS                                                                                                BASS                                       TREBLE




                                                                                                              C207
                                                                                                              152J
                              P207                                                                                                                7                                                                                                                                                                                                  3                                                                                                                                                                                                                                                                                       7




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             C375 223
                                                                                                                                  Q201                                                                                                                                                                                                                                                 C305                                                                                                                                                                            C353                                              Q351
                                                                                                                              6                                                                                                                                         3.3K                                                                                                    1                        R311                                                     HPFL                                                                                                 47/25                                    6
                                                                                                                                                              10/50                                                                                                                                                                                         Q301
                                                                                                                                                                                                                                                                                                                                                     2                                                                      Q305                                                                                                        R353                                                                                                                                                                                   C363
                                                                                                                                                                                                                                                                                                                                                                                       47/25                  47                                                  GND                                                                                                                                                                                                                                                          104
            RI




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        R377
                                                                                                                                                                                                                                                                                                                                                                                                                          2SD655-F




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        4.7K
                                                                                                                                                                                                                                                                   Q303                                                                                                                                                                                                                                                                                                                                                                                                                      R369




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    10K 33/35




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         C371
                                                                                                                                                                      R213
                                                                                                                                                                              100K




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        C387




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         822J
                              P208                                                                                        C209       C211                                                                                                                                                                                                                                                                                                                         HPFR                                                                                                                                                                                                                                                                                                                          C367




                                                                                                  C205 R207




                                                                                                                                                                                                                                                                                                                                                                                                220K
                                                                                           220K




                                                                                                                                                                                                                                                                                                                     220K

                                                                                                                                                                                                                                                                                                                            220K
                                                                                           R205




                                                                                                                                                                                                                                                                                                                            R303

                                                                                                                                                                                                                                                                                                                                          R305




                                                                                                                                                                                                                                                                                                                                                                                                          R313
                                                                                                                                                                                                                                                                2SD655-F                                 R315                                                  R307 10K                                                                                                                                                                                                                                        R365 47K                                                                      20KA                                                    NJM4580M-D




                                                                                                       820
                                                                                                                          682J       182J                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     C365                                                              473J
                                                                                                                                                                                                                                                                                                                                                                                                                               R317                               GND                                                                                                                                              Q353                                                                          474J                          822




                                                                                                                                                                                                                                                                                                                                                  R309
                                                                                                                                                                                                                                                                                                                                       5.6K
                                                                                                                                                                                                                                                                                                              1K                                                                                                                                                                                                                                                                                                   2SK365-GR                                                                                                                          3




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           R359
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  220K
                                                                                                                                                                                                                                                                                                                                                                                                                                1K




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   R361
                                                                                                                220/6.3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  HPIN                                                  C351        R351                                                                                   R383                                                                                                                                                                                             R381
                                                                                                                                                                                                                                                                                                                                                           C303 NC                                                                                                                                                                                                                                                                                                                                                                                                         1     R370                  R391                                      R371
                              P209                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    VOLUME                                                                                                                                            C359                                                     Q352           100KC
                                                                                                                          R209       R211                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     R373                                                                     10K                                       50KC
                                                                                                                                                                                                                                                                                                                                                           C304 NC                                                                                                                                                          47/25      470                                                                                    D351 1M                                                                                                                  2                                                                       470
                                                                                                                          470K       39K




                                                                                                                                                                                                                                                                                                                                                  R310
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        R357




                                                                                                                                                                                                                                                                                                                                           5.6K




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               33/50
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               C355
                                                 C282                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  C361                    680




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         C373
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         393J
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        R379
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    R375
                                                                                                                                                                                                                                                                                                                                                                                                          R314




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    100K
                                                                                                                                                                                                                                                                                                                                                                                                                               R318




                                                                                                                                                                                                                                                                                                                                                                                                220K




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         1K
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       393J                                                                                     C369




                                                                                                                220/6.3
                                                                                                                          R210           R212                                                                                                                                                                                                                                                                                                                                                                                                           470




                                                                                                     C206
                                                                                                                                                                                                                                                                                                          R316




                                                                                                                                                                                                                                                                                                                     220K

                                                                                                                                                                                                                                                                                                                            220K
                                                                                                                                                                                                                                                                                                                            R304

                                                                                                                                                                                                                                                                                                                                       R306




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                R355
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                224J




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                6.8K
                                                     102 R201                                                             470K           39K                                                                                                                                                                                                                                                                                                                                                                                                    R353




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   R364 R363
                                                                                                                                                                                                                                                                   Q304                                                                                     R308 10K




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   12K 12K
                                       C283              1K                                                                                                                                                                                                                                                                                                                                                                       1K
                                                                                                                                                                                                                                                                2SD655-F                                      1K                                



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