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XW-215
Service Manual
33 pgs5.99 Mb0

Daewoo XW-212, XW-214, XW-215 Service Manual

Service Manual
S/N No. :
Sep. 2002
D AEW OO ELECTR ONICS CO., LTD.
http : //svc.dwe .co.kr
Mini Component System
Model:
WARNING
: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE.
CAUTION :
TO REDUCE THE RISK IF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE OF UNINSULTED "DANGEROUS VOLTAGE"
WITHIN THE PRODUCT'S ENCLOSURE THAT MAY BE
SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK TO PERSONS.
THIS SYMBOL IS INTENDED TO ALERT THE USER TO THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE (SERVICING) INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE APPLIANCE.
CAUTION
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC PLUG WITH AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
LASER SAFETY
THIS UNIT EMPLOYS A LASER. ONLY QUALIFIED SERVICE PERSONNEL SHOULD REMOVE THE COVER OR ATTEMPT TO SERVICE THIS DEVICE DUE TO POSSIBLE EYE INJURY.
CAUTION :
USE OF ANY CONTROLS, ADJUSTMENTS, OR PROCEDURES
OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
CAUTION :
TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF
PLUG TO WIDE SLOT, FULLY INSERT.
ATTENTION :
POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPON­DANTE DE LA PRISE ET POUSSER JUSQU'AU FOND.
Important Safety Instructions
- All the safety and operating instructions should be read before
the appliance is operated.
- The safety and operating instructions should be retained for
future reference.
- 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,
laundry tub, in a wet basement, or near a swimming pool, and the like.
2. Carts and Stands - The appliance should be used only with a cart or stand that is recommended by th manufacturer.
3. An appliance and cart combination
should be moved with care. Quick
stops, excessive force, and uneven surfaces may cause the appliance
and cart combination to overturn.
4. Wall or Ceiling Mounting - The appli-
ance should be mounted to a wall or
ceiling only as recommended by the manufacturer.
5. Ventilation - The appliance should be situated so that its
location or position does not interfere with its proper
ventilation. For example, the appliance should not be situated
on a bed, sofa, rug, or similar surface that may block the
ventilation openings; or, placed in a built-in installation, such
as a bookcase or cabinet that may impede the flow of air through the ventilation openings.
6. Heat - The appliance should be situated away from heat
sources such as radiators, heat registers, stoves, or other
appliances (including amplifiers) that produce heat.
7. Power Sources - The appliance should be connected to a
power supply only of the type described in the operating
instructions or as marked on the appliance.
8. Grounding or Polarization - The precautions that should be
taken so that the grounding or polarization means of an appliance is not defeated.
9. Power - Cord Protection - Power-supply cords should be
routed so that they are not likely to be walked on or pinched
by items placed upon or against them, paying particular
attention to cords at plugs, convenience receptacles, and the
point where they exit from the appliance.
10.Protective Attachment Plug - If the appliance is equipped with
an attachment plug having overload protection. This is a
safety feature. See Instruction Manual for replacement or
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 same overload protection as the original plug.
11.Cleaning - The appliance should be cleaned only as recommended by the manufacturer.
12.Power Lines - An outdoor antenna should be located away from power lines.
CAUTION
RISK OF ELECTRIC SHOCKS
DO NOT OPEN
PORTABLE CART
Figure 2
13.Outdoor Antenna Grounding - If an outside antenna is
connected to the receiver be sure the antenna system is grounded so as to provide some protection against voltage
surges and built-up static charges. Article 810 of the National
Electrical Code, ANSI/NFPA 70, provides information with
regard to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna-dis charge unit, size of grounding conductors,location of antenna­discharge unit, connection to grounding electrodes and requirements for the grounding electrode. See Figure 1.
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.
15.Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings.
16.Damage Requiring Service - The appliance should be serviced by qualified service personnel when:
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 c) The appliance has been exposed to rain; or
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 damaged.
17.Servicing - The user should not attempt to service the appliance beyond that described in the operating instructions.
All other servicing should be referred to qualified service personnel.
ANTENNA DISCHARGE UNIT (NEC SECTION 810-20)
ANTENNA LEAD IN WIRE
POWER SERVICE GROUNDING ELECTRODE SYSTEM (NEC ART 250 PART H)
GROUND CLAMP
ELECTRIC SERVICE EQUIPMENT
GROUNDING CONDUCTORS (NEC SECTION 810-21)
GROUND CLAMPS
EXAMPLE OF ANTENNA GROUNDING
NEC - NATIONAL ELECTRICAL CODE
1. TAPE SECTION
Test Tape be used
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 L603 to obtain 80 KHz
±
500Hz
Tape Contents Use
MTT-111N 3 KHz Tape Speed Adjustment MTT-114N 10 KHz Head Azimuth Adjustment MTT-5511 Blank Record Frequency Property
VTVM
Scope
R-CH
L-CH
47 kohm
47 kohm
Input Level Measurement Point
Input Point
Output Level
Measurement
Point
TAPE ALIGNMENT CHART
Step Item Reference Value Test Tape Adjust Point Test Point Note FIG.
1
Tape Speed Adjustment
Normal
3,015~3,025Hz MTT-111N RV601
Line Out L/R Channel
Line Out L/R Channel
Confirm Wow & Flut­ter is within 0.35%
FIG.1
3,000~3,010Hz MTT-111N RV601
Line Out L/R Channel
Confirm Tape Speed of end position after adjustment at tape start position
FIG.1
High
5,820~6,180Hz MTT-111N - - - - - -
Confirm High speed after normal speed adjustment
FIG.1
2
Azimuth Adjustment
Maximum Level Phase:Within90∞
MTT-114N Head Screw
Line Out L/R Channel
FIG.2,3,4
3
Recording Bias Oscilla­tor Frequency Adjust-
ment
80 KHz
±
0.5
MTT-5511 L603
TP603,GND
Adjust with frequency counter connected.
FIG.1
FIG. 1 : Tape Speed & Record Bias Oscillator
Frequency Adjust Circuit
Test Tape : MTT-111N(3kHz)
MTT-5511(Blank)
Frequency Counter
Output Level Measurement Point
Set
FIG. 2 : Tape Azimuth Adjust Location
(Record/Playback Head)
FIG. 3 : Tape Azimuth Adjust Head Screw & Waveform
FIG. 4 : Tape Azimuth Adjust Circuit & Waveform
Forward
Side
Reverse
Side
Adjust with Frequency
Counter Connected
L-CH Peak
R-CH
Peak Screw Angle
Output Level
within
1 dB
within
1 dB
L-CH Peak
R-CH Peak
Screw Angle
VH
Oscilloscope
L-CH
Output Level Measurement Point
Set
Test Tape MTT-114N
(10kHz)
Screen Pattern
In Phase 45 90 135 180
Good Wrong
Exploded View and Mechanical Parts List
Model : XW-212/212R, XW-214/214R, 215/215R
5
NO PARTS NAME CODE NO DESCRIPTIONS Q’TY REMARKS
1 PANEL FRONT 9CD0308200 MIPS 1 2 DOOR COVER A 9CD18117A0 MIPS 1 3 DOOR COVER B 9CD18117B0 MIPS 1 4 WINDOW DOOR A 9CD16169A0 ACRYL SMOKE20% 1 5 WINDOW DOOR B 9CD16169B0 ACRYL SMOKE20% 1 6 DOOR CD 9CD1811800 MIPS 1 7 WINDOW FLT 9CD1616800 ACRYL SMOKE20% 1 8 KNOB FUNCTION 9CD1340300 ACRYL CLEAR 1
9 KNOB POWER 9CD1340400 MIPS 1 10 KNOB CONTROL 9CD1340500 ABS 1 11 KNOB UBS 9CD1340600 ACRYL LIGHTBLUE 1 12 KNOB VOL 9CD1340700 MIPS 1 13 SPRING DOOR EJECT L 9CD30078L0 STS 1 14 SPRING DOOR EJECT R 9CD30078R0 STS 1 15 GUID FLT 9CD2506600 MIPS 1 16 DOOR FRAME A 9CD18113A0 ABS 1
16~1 DOOR FRAME B 9CD18113B0 ABS 1
17 BRKT SIDE 9CD2412900 MIPS 2 18 DAMPER GEAR B 9CD2603200 ACETAL 2 19 DAMPER BASE B 9CD2603300 ACETAL 2 20 LOCKER BASE 9CDOB01900 ACETAL 2 21 LOCKER CAM 9CDOB02000 ACETAL 2 22 LOCKER SPRING 9CDOB01600 STS 2 23 CASSETTE DECK LOGIC 9CD6010100 PIGEON CWL-44FF-33 1 24 CUSHION FOOT 9CD4207700 EVA 2 25 HEAT SINK 9CD4406200 BSP 0.5T 1 26 CD DECK MECHA 9CD6009300 DCC01BC+D73S 1 27 COVER TOP 9CD0409600 MIPS 1 28 COVER SIDE L 9CD0409900 MIPS AMI-730L 1 29 CHASSIS BOTTOM 9CD0607100 SCP 1 30 FILTER FUNCTION 9CD4700900 PC T 0.15 1 31 WASHER SCREW 9CD3102400 TT2 BIN 310 +D14 1 32 COVER SIDE R 9CD0410000 MIPS AMI-730L 1 33 COVER BACK 9CD0411100 MIPS 1 34 BRKT HEATSINK 9CD2414400 ST 0.3 1 35 HEAK SINK50
AL 1 36 BRKT HEATSINK 9CD2414600 SECC T 1.0 2 37 PLATE FLT 9CD0911600 PC0.5T 1 38 PLATE LED 9CD0911700 PC0.5T 1 39 PCB FRONT 9CD6582600 1 40 BADGE BRAND 9CD1500900 SHERWOOD 1
NO SCREW Q’TY CODE NO DESCRIPTIONS Q’TY REMARKS
S1 SCREW TAPTTITE 7173261011 TT2 BIN 2.610 MFZ 11 S2 SCREW TAPTTITE 7173301011 TT2 BIN 3.010 MFZN 21 S3 SCREW TAPTTITE 7173301212 TT2 BIN 3.012 BK 21 S4 SCREW TAPTTITE 7173301612 TT2 BIN 3.06 MFZN 6 S5 SCREW TAPTTITE 7173400611 TT2 BIN 4.06 MFZN 4
S5-1 SCREW TAPTTITE 7173401011 TT2 BIN 4.010 MFZN 0
9CD4405800
Wiring Diagram
7
Model : XW-212/212R
Wiring Diagram
8
Model : XW-214/214R, 215/215R
Block Diagram
9
Model : XW-212/212R
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