Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo Audio XG-52XV hfe_daewoo_xg-52xv_xw-53x_service_en

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                             SN : 9CD8304100



   Service Manual
           Model : XG-52x[V][K] Series
                   XG-53x[V][K] Series
                   XW-52x[K] Series
                   XW-53x[K] Series
XG-52x[V][K] Series         XG-53x[V][K] Series




XW-52x[K] Series               XW-53x[K] Series




      DAEWOO DAT CO., LTD.
                             JUN. 2005
1                                                                                                                            1
                           Mini component sound system
2                      with CD-R/RW/MP3/Video CD playback                                                                    2
        XG-522[V]/524[V][K)/525[V][K)/526[V][K)/527[V][K)/528[V][K)
3      XG-532[V]/534[V][K)/535[V][K)/536[V][K)/537[V][K)//538[V][K)                                                          3
                         Mini component sound system
4                                   with CD-R/RW playback
                                                                                                                             4
                   XW-522/524[K)/525[K)/526[K)/527[K)/528[K)
5                  XW-532/534[K)/535[K)/536[K)/537[K)/538[K)                                                                 5
6   Table of Contents                                                                                                        6
7   SAFETY PRECAUTIONS ......................................................................................... 1
    ADJUSTMENTS ........................................................................................................ 2
                                                                                                                             7
8   EXPLODED VIEW AND PARTS LIST ...................................................................... 3
    WIRING DIAGRAM ................................................................................................... 4
                                                                                                                             8
    BLOCK DIAGRAM .................................................................................................... 5
9   SCHEMATIC DIAGRAM ........................................................................................... 6
                                                                                                                             9
           CD Section
           MP3/VCD Section
           FRONT Section
           TAPE and FUNCTION Section
           AMP Section
           MIC Section
           POWER Section
    PCB PATTERN LAYOUT ........................................................................................... 7
           MAIN
           AMP
           FRONT
           POWER
    ELECTRICAL PART LIST .......................................................................... Appendix
     Safety Precautions                                                                                                                        1
1
    WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE              laundry tub, in a wet basement, or near a swimming pool,

2
    THIS APPLIANCE TO RAIN OR MOISTURE.

                              CAUTION
                                                                           and the like.

                                                                             PORTABLE CART
                                                                                                 2. Carts and Stands - The appliance
                                                                                                    should be used only with a cart or
                                                                                                                                               2
                      RISK OF ELECTRIC SHOCKS                                                       stand that is recommended by th


3                                                                                                                                              3
                            DO NOT OPEN                                                             manufacturer.
                                                                                                 3. An appliance and cart combination
     CAUTION :TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT                                          should be moved with care. Quick
              REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS                                     stops, excessive force, and uneven


4                                                                                                                                              4
              INSIDE.                                                                               surfaces may cause the appliance
              REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.                                       and cart combination to overturn.
                                                                                  Figure 2       4. Wall or Ceiling Mounting - The appli-
              THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE
              PRESENCE OF UNINSULTED "DANGEROUS VOLTAGE"                                           ance should be mounted to a wall or


5                                                                                                                                              5
              WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE                    ceiling only as recommended by the manufacturer.
              SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF              5. Ventilation - The appliance should be situated so that its
              ELECTRIC SHOCK TO PERSONS.                                   location or position does not interfere with its proper
                                                                           ventilation. For example, the appliance should not be situated

                                                                                                                                               6
              THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE

6             PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE              on a bed, sofa, rug, or similar surface that may block the
              (SERVICING) INSTRUCTIONS IN THE LITERATURE                   ventilation openings; or, placed in a built-in installation, such
              ACCOMPANYING THE APPLIANCE.                                  as a bookcase or cabinet that may impede the flow of air
                                                                           through the ventilation openings.


7                                                                                                                                              7
                              CAUTION                                   6. Heat - The appliance should be situated away from heat
     TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC
                                                                           sources such as radiators, heat registers, stoves, or other
     PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET
     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

8                          LASER SAFETY
    THIS UNIT EMPLOYS A LASER. ONLY QUALIFIED SERVICE PERSONNEL
                                                                           power supply only of the type described in the operating
                                                                           instructions or as marked on the appliance.                         8
                                                                        8. Grounding or Polarization - The precautions that should be
    SHOULD REMOVE THE COVER OR ATTEMPT TO SERVICE THIS DEVICE
                                                                           taken so that the grounding or polarization means of an

9                                                                                                                                              9
    DUE TO POSSIBLE EYE INJURY.
                                                                           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,
1     Safety Precautions                                                                                                                            1
    13.Outdoor Antenna Grounding - If an outside antenna is                 15.Object and Liquid Entry - Care should be taken so that objects

2      connected to the receiver be sure the antenna system is
       grounded so as to provide some protection against voltage
                                                                               do not fall and liquids are not spilled into the enclosure through
                                                                               openings.
                                                                            16.Damage Requiring Service - The appliance should be
                                                                                                                                                    2
       surges and built-up static charges. Article 810 of the National
       Electrical Code, ANSI/NFPA 70, provides information with                serviced by qualified service personnel when:

3      regard to proper grounding of the mast and supporting
       structure, grounding of the lead-in wire to an antenna-dis
                                                                                a) The power-supply cord or the plug has been damaged; or
                                                                                b) Objects have fallen, or liquid has been spilled into the
                                                                                   appliance; or
                                                                                                                                                    3
       charge unit, size of grounding conductors,location of antenna-
       discharge unit, connection to grounding electrodes and                   c) The appliance has been exposed to rain; or

4      requirements for the grounding electrode. See Figure 1.                  d) The appliance does not appear to operate normally or
                                                                                    exhibits a marked change in performance; or
                                                                                e) The appliance has been dropped, or the enclosure
                                                                                                                                                    4
                EXAMPLE OF ANTENNA
                                                                                   damaged.

5                                                                                                                                                   5
                GROUNDING                            ANTENNA LEAD
                                                     IN WIRE
                                                                            17.Servicing - The user should not attempt to service the
                                                                               appliance beyond that described in the operating instructions.
                       GROUND CLAMP                                            All other servicing should be referred to qualified service
                                                   ANTENNA DISCHARGE UNIT
                                                   (NEC SECTION 810-20)        personnel.

6                         ELECTRIC
                          SERVICE
                          EQUIPMENT
                                                    GROUNDING CONDUCTORS
                                                    (NEC SECTION 810-21)

                                             GROUND CLAMPS
                                         POWER SERVICE GROUNDING
                                                                                                                                                    6
                                         ELECTRODE SYSTEM
        NEC - NATIONAL ELECTRICAL CODE   (NEC ART 250 PART H)




7   14.Non-use Periods - The power cord of the appliance should be
       unplugged from the outlet when left unused for a long period
       of time.
                                                                                                                                                    7
8                                                                                                                                                   8
9                                                                                                                                                   9
     Adjustments                                                                                                                                                                    1
1
      TAPE SECTION

2                                                                                                                                                                                   2
                                                        Output Level
                                                        Measurement                                     Input Point
                                                           Point                                                                            Scope

                                                            R-CH                     47 kohm

                                                                                                            VTVM



                                                                                                                                                                                    3
                                              Input Level


3
                                              Measurement
                                              Point

                                                               L-CH                  47 kohm

    Test Tape be used

4                        Tape
                       MTT-111N
                                                                                        Contents
                                                                                         3 KHz
                                                                                                                                             Use
                                                                                                                                    Tape Speed Adjustment                           4
                       MTT-114N                                                          10 KHz                                    Head Azimuth Adjustment
                       MTT-5511/                                                          Blank                                   Record Frequency Property

5   HEAD ADJUSTMENT (AZIMUTH)
    1. 10KHz test tape(example: MTT-114N) must be used for this adjustment.
                                                                                                                                                                                    5
    2. Connect to VTVM or oscilloscope to the headphone jack or speaker terminal.
    3. Press the play button.

6   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
                                                                                                                                                                                    6
    1. Connect the frequency counter to TP603, GND.

7                                                                                                                                                                                   7
    2. Press the REC button.
    3. Adjust L600 to obtain 80 KHz



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