Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo Audio XG-315 hfe_daewoo_xg-315_service_en

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                     S/N No. :   9CD8302400



Service Manual
Mini Component System

Model: X G - 3 1 5                                                                                MINI COMPONENT SYSTEM

                                                                                                                                                    XG-315



                                              Table of Contents

                                              SAFETY PRECAUTIONS ..................................................................................... 2~3
                                              ADJUSTMENTS ........................................................................................................ 4
                                              EXPLODED VIEW AND PARTS LIST ......................................................... 5~6
                                              WIRING DIAGRAM ................................................................................. 7
                                              BLOCK DIAGRAM ............................................................................. 8
                                              SCHEMATIC DIAGRAM ..................................................................................... 9~13
                                                "
                                                  TUNER/TAPE/AMP/POWER .............................................................................. 9
                                                "
                                                  MP3 CD ............................................................................................................. 10
          XG-315
                                                "
                                                  FRONT .............................................................................................................. 11

                                              PCB PATTERN LAYOUT ...................................................................................12~15
                                                "
                                                  MAIN ................................................................................................................. 12
                                                "
                                                  MP3 CD ............................................................................................................. 13
                                                "
                                                  FRONT .............................................................................................................. 14
                                                "
                                                  POWER ............................................................................................................. 15
                                              ELECTRICAL PART LIST .......................................................................... Appendix




    DAEWOO DAT CO., LTD.                                                                                   1
                             APR. 2004
                             FEB. 2004
 Safety Precautions                                                                                                                          Safety Precautions
                                                                                                                                           13.Outdoor Antenna Grounding - If an outside antenna is                 15.Object and Liquid Entry - Care should be taken so that objects
WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE              laundry tub, in a wet basement, or near a swimming pool,
                                                                                                                                              connected to the receiver be sure the antenna system is                 do not fall and liquids are not spilled into the enclosure through
THIS APPLIANCE TO RAIN OR MOISTURE.                                    and the like.
                                                                                                                                              grounded so as to provide some protection against voltage               openings.
                                                                                             2. Carts and Stands - The appliance
                          CAUTION                                        PORTABLE CART                                                        surges and built-up static charges. Article 810 of the National      16.Damage Requiring Service - The appliance should be
                                                                                                should be used only with a cart or
                  RISK OF ELECTRIC SHOCKS                                                                                                     Electrical Code, ANSI/NFPA 70, provides information with                serviced by qualified service personnel when:
                                                                                                stand that is recommended by th
                        DO NOT OPEN                                                                                                           regard to proper grounding of the mast and supporting                    a) The power-supply cord or the plug has been damaged; or
                                                                                                manufacturer.
                                                                                             3. An appliance and cart combination             structure, grounding of the lead-in wire to an antenna-dis               b) Objects have fallen, or liquid has been spilled into the
                                                                                                                                              charge unit, size of grounding conductors,location of antenna-              appliance; or
 CAUTION :TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT                                          should be moved with care. Quick
                                                                                                                                              discharge unit, connection to grounding electrodes and                   c) The appliance has been exposed to rain; or
          REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS                                     stops, excessive force, and uneven
          INSIDE.                                                                                                                             requirements for the grounding electrode. See Figure 1.                  d) The appliance does not appear to operate normally or
                                                                                                surfaces may cause the appliance
          REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.                                                                                                                                                                  exhibits a marked change in performance; or
                                                                                                and cart combination to overturn.
                                                                              Figure 2       4. Wall or Ceiling Mounting - The appli-                                                                                  e) The appliance has been dropped, or the enclosure
          THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE                                                                                             EXAMPLE OF ANTENNA
                                                                                                                                                                                                                          damaged.
          PRESENCE OF UNINSULTED "DANGEROUS VOLTAGE"                                           ance should be mounted to a wall or                     GROUNDING                            ANTENNA LEAD
                                                                                                                                                                                            IN WIRE
                                                                                                                                                                                                                   17.Servicing - The user should not attempt to service the
          WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE                    ceiling only as recommended by the manufacturer.
                                                                                                                                                                                                                      appliance beyond that described in the operating instructions.
          SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF              5. Ventilation - The appliance should be situated so that its
                                                                                                                                                              GROUND CLAMP                                            All other servicing should be referred to qualified service
          ELECTRIC SHOCK TO PERSONS.                                   location or position does not interfere with its proper                                                            ANTENNA DISCHARGE UNIT
                                                                                                                                                                                          (NEC SECTION 810-20)        personnel.
                                                                       ventilation. For example, the appliance should not be situated
          THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE                                                                                                       ELECTRIC
                                                                                                                                                                                           GROUNDING CONDUCTORS
                                                                                                                                                                                           (NEC SECTION 810-21)
          PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE              on a bed, sofa, rug, or similar surface that may block the                                SERVICE
                                                                                                                                                                 EQUIPMENT
                                                                                                                                                                                    GROUND CLAMPS
          (SERVICING) INSTRUCTIONS IN THE LITERATURE                   ventilation openings; or, placed in a built-in installation, such
                                                                                                                                                                                POWER SERVICE GROUNDING
                                                                                                                                                                                ELECTRODE SYSTEM
          ACCOMPANYING THE APPLIANCE.                                  as a bookcase or cabinet that may impede the flow of air                NEC - NATIONAL ELECTRICAL CODE   (NEC ART 250 PART H)

                                                                       through the ventilation openings.
                          CAUTION                                                                                                          14.Non-use Periods - The power cord of the appliance should be
                                                                    6. Heat - The appliance should be situated away from heat
 TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC                                                                                      unplugged from the outlet when left unused for a long period
                                                                       sources such as radiators, heat registers, stoves, or other
 PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET                                                                                      of time.
 UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE              appliances (including amplifiers) that produce heat.
 EXPOSURE.                                                          7. Power Sources - The appliance should be connected to a
                                                                       power supply only of the type described in the operating
                       LASER SAFETY                                    instructions or as marked on the appliance.
THIS UNIT EMPLOYS A LASER. ONLY QUALIFIED SERVICE PERSONNEL
                                                                    8. Grounding or Polarization - The precautions that should be
SHOULD REMOVE THE COVER OR ATTEMPT TO SERVICE THIS DEVICE
DUE TO POSSIBLE EYE INJURY.                                            taken so that the grounding or polarization means of an
                                                                       appliance is not defeated.
CAUTION : USE OF ANY CONTROLS, ADJUSTMENTS, OR PROCEDURES           9. Power - Cord Protection - Power-supply cords should be
OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS              routed so that they are not likely to be walked on or pinched
RADIATION EXPOSURE.                                                    by items placed upon or against them, paying particular
                                                                       attention to cords at plugs, convenience receptacles, and the
CAUTION : TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF
                                                                       point where they exit from the appliance.
PLUG TO WIDE SLOT, FULLY INSERT.
                                                                    10.Protective Attachment Plug - If the appliance is equipped with
ATTENTION : POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE              an attachment plug having overload protection. This is a
LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPON-             safety feature. See Instruction Manual for replacement or
DANTE DE LA PRISE ET POUSSER JUSQU'AU FOND.                            resetting of protective device. If replacement of the plug is
                                                                       required, be sure the service technician has used a
                                                                       replacement plug specified by the manufacturer that has the
Important Safety Instructions                                          same overload protection as the original plug.
- All the safety and operating instructions should be read before   11.Cleaning - The appliance should be cleaned only as
  the appliance is operated.                                           recommended by the manufacturer.
- The safety and operating instructions should be retained for      12.Power Lines - An outdoor antenna should be located away
  future reference.                                                    from power lines.
- All warnings on the appliance and in the operating instructions
  should be adhered to.
- All operating and use instructions should be followed.
1. Water and Moisture - The appliance should not be used near
    water - for example, near a bathtub, washbowl, kitchen sink,




                                                                    2                                                                                                                                              3
     Adjustments
1. TAPE SECTION
                                                        Output Level
                                                        Measurement                                         Input Point
                                                           Point                                                                                Scope

                                                           R-CH                      47 kohm

                                                                                                                VTVM
                                             Input Level
                                             Measurement
                                             Point

                                                               L-CH                  47 kohm

Test Tape be used
                        Tape                                                            Contents                                                 Use
                      MTT-111N                                                           3 KHz                                          Tape Speed Adjustment
                      MTT-114N                                                           10 KHz                                        Head Azimuth Adjustment
                      MTT-5511                                                            Blank                                       Record Frequency Property
   HEAD ADJUSTMENT (AZIMUTH)
1. 10KHz test tape(example: MTT-114N) must be used for this adjustment.
2. Connect to VTVM or oscilloscope to the headphone jack or speaker terminal.
3. Press the play button.
4. Adjust the azimuth by using a screw driver to maintain the max. L&R output voltage.
5. Adjust tape A(1), tape B(2) respectively, Please secure the azimuth position by using locking paint.
   RECORDING BIAS OSCILLATOR FREQUENCY ADJUSTMENT
1. Connect the frequency counter to TP603, GND.
2. Press the REC button.
3. Adjust L600 to obtain 80 KHz



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