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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