Service Manuals, User Guides, Schematic Diagrams or docs for : ONKYO Audio TX-NR808 hfe_onkyo_tx-nr808_service_en

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                                                              TX-NR808

                                                        Ref. No. 4208
                                                              062010
                  SERVICE MANUAL


                  AV RECEIVER
     MODEL TX-NR808(B)/(S)




              Black and Silver models                     RC-771M

B MDC, B MDF               120V AC, 60Hz
B MMP, B MMA, B MMB, S MMP 220-240V AC, 50/60Hz
B MMR, B MMQ               220-240V AC, 50/60Hz




        SAFETY-RELATED COMPONENT
        WARNING!!
        COMPONENTS IDENTIFIED BY MARK      ON THE
        SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
        CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
        REPLACE THESE COMPONENTS WITH ONKYO
        PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
        IN THIS MANUAL.
        MAKE LEAKAGE-CURRENT OR RESISTANCE
        MEASUREMENTS TO DETERMINE THAT EXPOSED
        PARTS ARE ACCEPTABLY INSULATED FROM THE
        SUPPLY CIRCUIT BEFORE RETURNING THE
        APPLIANCE TO THE CUSTOMER.
                                                                                                                                  TX-NR808


SERVICE PROCEDURE-1

 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 adjacent 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.        PART NAME           DESCRIPTION          PART NO.         REMARKS
       F2000          FUSE                4A-UL/T-233          252325GR         !
       F2000 or       FUSE                4A-T/UL-ST2          252257GR         !
       F2001          FUSE                3.15A-UL/T-233       252323GR         !
       F2001 or       FUSE                3.15A-T/UL-ST2       252256GR         !
       F6901          FUSE                15A-TUL-250V         252303GR         !
       F6901 or       FUSE                15A-UL/T-314         252197GR         !
       F6902          FUSE                15A-TUL-250V         252303GR         !
       F6902 or       FUSE                15A-UL/T-314         252197GR         !
       F901           FUSE                12A-TUL-250V         252301GR         !, 
       F901           FUSE                12A-UL/T-314         252196GR         !, 
       F901 or        FUSE                6.3A-SE-EAK          252079GR         !, 
       F901 or        FUSE                6.3A-SE-TL250V       252279GR         !, 
            
             : 120V,Canadian model                          : 230V,Australian model
             : 120V,Taiwanese model                         : 220/230-240V,Hong kong model
             : 230V,CE(European) country model              : 220/230-240V,Chinese model
             : 230V,UK model

 2. Safety check out
  (U.S.A. model only)
  After correcting the original service problem, perform the following safety check before releasing the unit to the customer.
  Leakage current Check
  Measure the leakage current to a known earth ground (water pipe or conduct etc.) by connecting a leakage current
  tester between the earth ground and exposed metal parts of the unit (input/output ground terminals, screw heads or metal overlays etc.).
  Plug the power supply cord directly into a 120Vac 60Hz wall socket and turn ON/STANDBY button on.
  Any current measured must not exceed 0.5mA.

 3. Memory Backup
  This model uses a EE-PROM IC in order to retain radio presets and other settings. So, memory contents will be
  kept eternally with no care.

 4. To initialize the unit
 1. ON/STANDBY (Power On)
                                                                ON/STANDBY       VCR/DVR
 2. VCR/DVR + ON/STANDBY.
               Cle a r                   Stand-by

  Preset memory and each mode stored in the memory, are
  initialized and will return to the factory settings.
                                                                                                     TX-NR808


SERVICE PROCEDURE-2

 5. To check version of Microprocessor, DSP and Video FW(Firmware)
 1. ON/STANDBY (Power On)

 2. DISPLAY + ON/STANDBY.
     [e.g.] TX-NR808
                          Main :
                           1 .03/1 0 7 2 9 A M

 3. TONE    [Tone      ] ---> Forward            [     ] : DTR-40.2/ 50.2, DHC-40.2

   TONE     [Tone      ] ---> Reversed.
                                                                         FW Version displayed
                                                                         only for 3 seconds.
                TONE
                         Ma in:
                          1.0 3 /10729A M                             Main Microprocessor

                TONE                                 TONE


                         DS P 1 st/NE T:
                          1 .06/1 0 9 2 2 A M7                        1st DSP/NET (DA830)

                TONE                                 TONE


                         DS P 2 n d :
                          1.0 0 /10429aM A                            2nd DSP


                TONE                                 TONE


                         V ideo:
                           1 .02/1 0 7 2 9 A S                        Video Microprocessor

                TONE                                 TONE

                         V S P (S equoia ):
                           1 .03/1 0 7 0 9 A MA                       VSP (Video Signal Processor)

                                                     TONE


 4. ON/STANDBY (Power Off).
                                          TONE
                       ON/STANDBY         TONE                                  DISPLAY
                                                                                                                                                                                                                                                             TX-NR808

                                                                                                                                                           A065                                                                                    A435
EXPLODED VIEWS-1                                                                                                                                           x 7 pcs.                                                                                L=10mm
OVERALL                                                                                                                               U0020                                                                  A715
                                                                                                                                                                                                             x 3 pcs.                                        A703
                                                     A261                                                               U0021                                 U0027
                               A275         A269     x 5 pcs.                                          A143
                                     A281                                                                     A137
                                            x 2 pcs.          A245                   A143                     x 2 pcs. U0022                                  U0026
          A285
                                         A271                                                                                                                 U0025                                        A701
                                                              A251
A283                           A267                                                                                                                           U0024
                               x 7 pcs.                          A702                                                                      D6901
                   A259                                          x 2 pcs.                                                                                                         U0012
                   x 8 pcs.                                                                                                A067                                                                        A717
                                                                                                            U0050                                                                                      x 6 pcs.
  A273 P900                                                                                                                                                                                                                                    A705
  x 2 pcs.
             A263                                                                                                 U0011                       A072                                      Q6068
             x 2 pcs.                                                                                                                                                             Q6066
                                                                                             U0051                   A165                                                Q6060 Q6061     Q6064
           A257
           x 10 pcs.                                                                                              A157
                                                                                                                                                                      Q6065
              A255
              x 12 pcs.                                         U007               U0054                      A160                                                  Q6067
                                                    P8002                                                     x 3 pcs.
                   A181
                   x 7 pcs.                                                                                   A169                                                                                                 Q6061A
                                                                                                              x 2 pcs.                                                                             Q6054
                                                                                                                                            A435
                                                  U0041                       P2101                                                         L=15mm      A063                          Q6058                                A051
                                                                                                                 A153                                                                                                      x 6 pcs.
                               U011                                                                                                                     x 14 pcs.                  Q6056
                                                                                                                          A048                                                                                      Q6051A        A047
                                                         A131                                                                                              A069                 Q6051                                             x 6 pcs. A049    A050
                              P103                                                                                                                         x 6 pcs.          Q6050
              P906                                                                                                              A046        A061                  U0010   Q6055                                                                     A163
                                                                                         A077                                   x 2 pcs.                                          Q6060A
                                                                                         x 20 pcs.                                          x 6 pcs.                  Q6057
                                                                          F2000                                                                                                                                                                       A045
                                                                                                                                                                                                                A155
                                                                       F2001                                A149
                                                 U0052                                                A148                                                                            Q6050A
                                                                                                      x 2 pcs.
                                                   A129                             A143                                                           P062                                             F6901
                                                   x 2 pcs.
                                                                                                                                                   A147                               U0029
                                                                                    U0040
                                                                                                     P061                                          x 4 pcs.
                                                                               A127            A147                                                                                 A071                   F6902
                                                                               x 2 pcs.        x 4 pcs.                                                                             x 2 pcs.
                                      P6600A      P6600A                       U0030
                                      x 2 pcs.    x 14 pcs.                                                                       A133                                     A247
                                                                                                                                             A177             A179
                                                                                                                                             x 3 pcs.         x 4 pcs.            T901 A089
                                                                                                              A161                                                                                   A167
                                                                                           A119                                                                                           L=40mm     x 5 pcs.
                                        U0032                                              x 4 pcs.                                                                                                             A153
                                                                                                                                                                                                                        A154
                                            A125                                                                                                       A081
                        F901E                                                                                                                                                                                           A159
                                 F901
                 A141                                                                                                                                                                                                   x 4 pcs.                  Refer to
                                                                                                                                                                                                                                   A151           EXPLODED VIEWS-2
                                       P6600A
                                       x 6 pcs.                                                                                                                                                                                       A163
                                 P9008            U0031                     A135                                                                                                          A155
               U0034                                                                                                                                   A087                                        U0065
                                                                                                                                                       L=40mm
                                                                              A177                                                                                             A155
                                                                              x 3 pcs.                                                                 A089
                                                                                                                                                       L=3mm
                                                                                                                                                       A083
                                                                                                                                                       x 4 pcs.                                                                     A171
                                                                                                                                                       A085                                                                         x 9 pcs.
                                                                                                                                                       x 4 pcs.
                                                                                                                     A121                              A093
                                                                                                                     x 3 pcs.                          x 4 pcs.
                                                                                                                                                                                                            A152
                                                                                                                                                         TX-NR808


                                                                                                            POWER SWITCH SECTION
EXPLODED VIEWS-2                                                                                            MMP, MMA, MMB, MMQ, MMR type
FRONT SECTION                                                                                                    A509
                                                                                                                 x 2 pcs.
             P8641                                                                                                                  A507
                                                                                                                                    x 2 pcs.
                       U00610                      P7501                                                     P9008
 P3101                                                                                                               U0069
                                A423
     A431                       x12 pcs.
                                                                                                                            U0066 A505
     U0081                                 U0060            A419
    A429                                                        U0064
     A417                                                                        A447
                                                                        A435     x 3 pcs.
                                                    A421                                           A435
                                                                        L=10mm
                                                                                    A401           L=20mm
                                                   U0068                                           A435                          A467
  A425                                             U0063                                           L=20mm                                  A465
  x 3 pcs.                                                                              A409                                 A463
                                    A449           A435                                        A411                                                    A477
         U0061                                L=10mm                                           x 2 pcs.
              A433                    U0062                                                                                  A461
               A427                      A403
               x 2 pcs.                                                                                                      A457                         A459
   JL4103        U0067
                                                                                                                                               A455
                                 A435                                                               A469
                                 L=20mm                                                                                 A485
                                                              A401B                 A413
     A453                        A435                       A405 A437
     x 2 pcs.                    L=20mm
                                                       A407                                 A493
                       A451                            x 2 pcs.
                                                                                                                                                A491
     A473                                                                                                                                             A517
                                                                                                                                                        A515
                     A439           A439       A441        A471
                     3TTB+10B       3TTB+10B               3P+6FN
      A475                                     3TTB+10B             A479
      3P+6FN                                                        3P+6FN




                                                                                                                                                                 TX-NR808
                          A443                      A443                                                                       A501
                                        A445        3TTB+8B
                          3TTB+8B       3TTB+8B
                A445                                          A445
                3TTB+8B       --- Bottom View ---             3TTB+8B
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           TX-NR708/808/1008, TX-NA708/808/1008, HT-RC270, DTR-40.2/50.2, DHC-40.2
                               A                                       B                                                            C                                                                                                     D                                                              E                                                                                   F                                                          G                                                                  H                                                   I                                                J                                           K
     SCHEMATIC DIAGRAMS - 1
     BLOCK DIAGRAM AUDIO SECTION

                                                            except onk JJ                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             HEADPHONES
1                                                            TUNER                UNIVERSAL
                                                              PACK                PORT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          POWER AMPLIFIER
                                                                                                                                                                                                                                                                                                         Z3L                                                                                     MAINR
                                                                                                              L      83    L
                                                                                                                                                                                                                                                                                                         Z3R                                                                                         1                                                                                                                                                                                                                                                SPEAKER TERMINALS
                                                                                                                                                                                                                                                                                                                                                                                                     2                                                                             22       SL                                                                                FL
                                                                                                                                                                                                                                                                                                                                                                                                                                     TONE                                                                                                                                                              +29dB
                                                                                                              R      82    R                                                                                                                                                                                                                                                                                                                                                       23       SL
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              FRONT LEFT
                                             for US                                        SIRIUS_L                                                                                                                                                                                                                                                                                                                                                                                24
                                                                                                                     57    L                                                                                                                                                                                                                                                                                                     Down mix : No use
           SIRIUS                            SIRIUS                                        SIRIUS_R
                                                                                                                                                                                                                                                   R2A15220FP                                                                                                                                    MAINL
                                                                                                                                                                                                                                                                                                                                                                                                     1
                                                                                                                                                                                                                                                                                                                                                                                                                                 Tone : Use for Z3
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              FR
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       +29dB
                                                                                                                     56    R
                                                                                                                                                                                                                                                                                                                                                                                                     2                                                                             20       SR
                                                                                                                                                                                                                                                                                                                                                                                                                                     TONE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    SPRLF                     FRONT RIGHT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   19       SR
                                                                                                                     60    L                          MAINL
                 L
        AUDIO IN                                                                                                                                                                                                                                                                                                                                                                                                                                                                   18
                                                                                                                                                                                                                                                                                                                                   SL(DAC)                  43           SL(DAC)                                                                                                                                                                                              C
         (FRONT) R                                                                                                   61    R                          MAINR                                                                                                                                                                                                         43                                                                                                                                                                                                                                 +29dB
2                                                                                                                                                                                                                                                                                                                                                           91
                                                                                                                                                                                                                                                                                                                                                                    91
                                                                                                                                                                                                                                                                                                                                                                         MCH SL
                                                                                                                                                                                                                                                                                                                                                                                                                                 1
                                                                                                                                                                                                                                                                                                                                                                                                                                 2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   16       C
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    SPRLC                     CENTER
                                                                                                                     65    L                               L
                               L                                                                                                                                           ADCL
                                                                                                                                                                                                        53
                                                                                                                                                                                                                                                                                                                                   SR(DAC)                  42         SR(DAC)
    PHONO (MM)                                                                                                                                                                                               Z3                                                                                                                                                                                                                                                                    17
                                                                                                                     64    R                               R                                                                                                                                                                                                                                                                                                                                                                                                                SL/Z3L
                               R                                                                                                                                                                        54
                                                                                                                                                                                                             708:Z2 mirror
                                                                                                                                                                                                                                                                                                                                                            90           MCH SR
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       +29dB
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              SURR
                                                                                                                                                                                                                                                                                                                                                                    90                                                                                                             15

                    L
                                             PHONO EQ                                                                67    L
                                                                                                                                                                      ADCR
                                                                                                                                                           0/-6/-12/-18dB
                                                                                                                                                                                                                                                                                                                                                                                                                                 1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              LEFT
                                                                                                                                                                                                                                                                                                                                                            39           C(DAC)                                                  2                                              Ref. GND
            TUNER                                                                                                                                                                                                                                                                                                                                                                                                                                                                  14       SW

     ( for onk JJ ) R                                                                                                66    R                                                                                                                                                                                                                                93           MCH C
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          SR/Z3R
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       +29dB
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              SURR
                                                                                                                                                                                                                                                                                                                                                            38           SW(DAC)                                                                                                   13
                                                                                                                     69    L                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        SPRLSR
                               L




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            +
                                                                                                                                                           L
                                                                                                                                                                       SUB1L
                                                                                                                                                                                                        46
                                                                                                                                                                                                                                                                                                                                                                                                                               1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              RIGHT




                                                                                                                                                                                                                    MAIN
                                                                                                                                                                                                                                                                                                                                                                                                                             SRC
        TV/CD IN                                                                                                                                                                                                                                                                                                                                            92           MCH SW
                                                                                                                                                                                                                                                                                                                                                                                                                               2
                                                                                                                     68    R
                               R                                                                                                                           R                                            47
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   10
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        SBL/Z2L/Bi_L/LH
                                                                                                                                                                                                                                                                                                                                                            34
                                                                                                                                                                                                                                                                                                                                                                    34
                                                                                                                                                                                                                                                                                                                                                                         FL(DAC)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   11
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        FL                                                                                                             +29dB                                                  SUR. BACK
                               L                                                                                     71    L
                                                                                                                                                                       SUB1R
                                                                                                                                                                                                                                                                                                                -6dB
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                / Bi Amp
                                                                                                                                                                                                                                                                                                                                                            95           FL(MIX)
3               PC IN
                                                                                                                                                                                                                                                                                                                                                                                                                               2                                                   12                                                                                                                                                                         LEFT
                               R                                                                                     70    R                                                                                                                                                                               inverted down mix
                                                                                                                                                                                                                                                                                                                                                            41           FL
                                                                                                                                                                                                                                                                                                                                                                                                                             SLC
                                                                                                                                                                                                                                                                                                                                                                                                                               1
                                                                                                                                                                                                                                                                                                                                                                                                                                                  priority terminal
                                                                                                                                                                                                                                                                                                                                                                    41
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        SBR/Z2R/Bi_R/RH
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       +29dB                                                  SUR. BACK
                               L                                                                                     73    L                                                                                                                                                                                                                                40           FR
                                                                          



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