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Схема AVR-3808CI & AVC-3808 Ver. 2


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                                                                                            Ver. 2
                                                                                           Please refer to the
                                                                                           MODIFICATION NOTICE.




                                SERVICE MANUAL
                 MODEL                             JP     EU       EC        E2   EK   E2A E1C EUT

AVR-3808CI
AVR-3808
AVC-3808

                                 AV SURROUND RECEIVER
                                 AV SURROUND AMPLIFIER

                                        Upgrade




For purposes of improvement, specifications and
design are subject to change without notice.



Please use this service manual with referring to the
operating instructions without fail.


Some illustrations using in this service manual are
slightly different from the actual set.




                                            e
                                    Denon Brand Company, D&M Holdings lnc.



                                                                                        X0401 V.02 DE/CDM 0810
SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.

LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the
power cord is less than 460 kohms, the unit is defective.



 CAUTION           Please heed the points listed below during servicing and inspection.

   Heed the cautions!                                                   Inspect for safety after servicing!
Spots requiring particular attention when servicing, such            Check that all screws, parts and wires removed or discon-
as the cabinet, parts, chassis, etc., have cautions indicated        nected for servicing have been put back in their original po-
on labels or seals. Be sure to heed these cautions and the           sitions, inspect that no parts around the area that has been
cautions indicated in the handling instructions.                     serviced have been negatively affected, conduct an insu-
                                                                     lation check on the external metal connectors and between
   Caution concerning electric shock!                                the blades of the power plug, and otherwise check that
                                                                     safety is ensured.
(1) An AC voltage is impressed on this set, so touching in-
    ternal metal parts when the set is energized could
                                                                     (Insulation check procedure)
    cause electric shock. Take care to avoid electric shock,
                                                                     Unplug the power cord from the power outlet, disconnect
    by for example using an isolating transformer and
                                                                     the antenna, plugs, etc., and turn the power switch on. Us-
    gloves when servicing while the set is energized, un-
                                                                     ing a 500V insulation resistance tester, check that the in-
    plugging the power cord when replacing parts, etc.
                                                                     sulation resistance between the terminals of the power
(2)There are high voltage parts inside. Handle with extra            plug and the externally exposed metal parts (antenna ter-
    care when the set is energized.                                  minal, headphones terminal, microphone terminal, input
                                                                     terminal, etc.) is 1M or greater. If it is less, the set must
   Caution concerning disassembly and                                be inspected and repaired.
   assembly!
Though great care is taken when manufacturing parts from
sheet metal, there may in some rare cases be burrs on the
                                                                      CAUTION          Concerning important safety
edges of parts which could cause injury if fingers are
moved across them. Use gloves to protect your hands.
                                                                                       parts

   Only use designated parts!                                        Many of the electric and structural parts used in the set
                                                                     have special safety properties. In most cases these prop-
The set's parts have specific safety properties (fire resis-         erties are difficult to distinguish by sight, and using re-
tance, voltage resistance, etc.). For replacement parts, be          placement parts with higher ratings (rated power and
sure to use parts which have the same properties. In par-            withstand voltage) does not necessarily guarantee that
ticular, for the important safety parts that are marked z on         safety performance will be preserved. Parts with safety
wiring diagrams and parts lists, be sure to use the desig-           properties are indicated as shown below on the wiring dia-
nated parts.                                                         grams and parts lists is this service manual. Be sure to re-
                                                                     place them with parts with the designated part number.
   Be sure to mount parts and arrange
   the wires as they were originally!                                (1) Schematic diagrams ... Indicated by the z mark.
For safety reasons, some parts use tape, tubes or other in-          (2) Parts lists ... Indicated by the z mark.
sulating materials, and some parts are mounted away from
                                                                                      Using parts other than the designated
the surface of printed circuit boards. Care is also taken with
                                                                                      parts could result in electric shock, fires or
the positions of the wires inside and clamps are used to
                                                                                      other dangerous situations.
keep wires away from heating and high voltage parts, so
be sure to set everything back as it was originally.




                                                                 2
                                          AVR-3808CI / AVR-3808 / AVC-3808                   Upgrade
z

                                 z
                                 z




                   3
    AVR-3808CI / AVR-3808 / AVC-3808   Upgrade
A



    OUTLINE FOR UPGRADE OF AVR-3808 (                                                                                             )

    1. About the Model Name.
      A product of the model name having "A" next to "3808" is an upgraded product. (yellow-colored cell)
      The product of the gray-colored cell is not upgraded. (gray-colored cell)

                                                                                           REGION
                                       NA                   EU                   AP                  TW                  CH               JP
                                    AVR-3808CI           AVR-3808A         AVR-3808A            AVR-3808
                                     BKEU/EC             BKE2/SRE2           SPE2A               SPEUT
                    AVR-                                                                                                  -                -
                                    Upgrade              Upgraded          Upgraded             Upgrade
                                    via DPMS             production        production           via DPMS
                                                                                                                     AVC3808A         AVC3808A
                                                                                                                      SPE1C             SP/K
                    AVC-                -                    -                    -                   -
                                                                                                                     Upgraded         Upgraded
                                                                                                                     production       production




    2. Details of Upgraded specifications. (                                                                     )
                                                                                            REGION
                                              NA                 EU                   AP               TW                 CH               JP
                                       AVR-3808CI           AVR-3808A          AVR-3808A            AVR-3808          AVC3808A         AVC3808A
                                        BKEU/EC             BKE2/SRE2            SPE2A               SPEUT             SPE1C             SP/K

                                        Upgrade             Upgraded           Upgraded             Upgrade           Upgraded        Upgraded
                                        via DPMS            production         production           via DPMS          production      production
                    ASD-A11R
                                              yes                yes                  yes              yes                yes             yes
                      Ready
                     Dynamic
                                              yes                yes                  yes              yes                yes             yes
                     Volume
     Additional      Dynamic
     Features                                 yes                yes                  yes              yes                yes             yes
                       EQ
    
                       CEC                    yes                yes                  yes              yes                yes             yes
                     Rhapsody                 yes                 -                    -                  -                   -            -
                       Sirius
                                              yes                 -                    -                  -                   -            -
                       Ready
                   Model name on
                                       AVR-3808CI           AVR-3808            AVR-3808            AVR-3808          AVC-3808         AVC-3808
                    Front-panel
                    Indication of      Addition of          Addition of        Addition of      Addition of          Addition of      Addition of
                    FLD Display        model name           model name         model name       model name           model name       model name
                                                            Addition of        Addition of                           Addition of      Addition of
                      Owner's            Control                                                     Control
    Printing and                                            Supplement         Supplement                            Supplement       Supplement
                      Manual            by region                                                   by region
     Materials                                                manual             manual                                manual           manual
                       Sticker                               Addition of        Addition of                            Addition of     Addition of
                   on Front panel            None           "Upgraded"         "Upgraded"             None            "Upgraded"      "Upgraded"
                    and Carton                                sticker            sticker                                sticker         sticker
                    Control card            original        AVR-3808A           AVR-3808             original         AVC-3808A       AVC-3808A
                   Serial number            original       *****50001          *****50001            original        *****50001       *****50001




                                                                           4
                                                       AVR-3808CI / AVR-3808 / AVC-3808                         Upgrade
DIMENSION




                           5
            AVR-3808CI / AVR-3808 / AVC-3808   Upgrade
WIRE ARRANGEMENT
If wire bundles are untied or moved to perform adjustment or
parts replacement etc., be sure to rearrange them neatly as
they were originally bundled or placed afterward.
Otherwise, incorrect arrangement can be a cause of noise
generation.

Wire arrangement viewed from the top


                                            AVR-3808CI/AVR-3808 model

                                                       Back Panel side




                                                       Front Panel side




                                                               6
                                         AVR-3808CI / AVR-3808 / AVC-3808   Upgrade
          AVC-3808 model

          Back Panel side




          Front Panel side




               7
AVR-3808CI / AVR-3808 / AVC-3808   Upgrade
DISASSEMBLY



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