Daewoo AXL-125, AXL-125R Service Manual
Service Manual
MINI COMPONENT SYSTEM
Model :
AXL-125/R
DAEWOO ELECTRONICS CO., LTD.
MINI COMPONENT SYSTEM
XL-125/R
Table of Contents
SAFETY PRECAUTIONS......................................................................................... 2
ADJUSTMENTS....................................................................................................... 4
EXPLODED VIEW AND PARTS LIST ...................................................................... 5
WIRING DIAGRAM ................................................................................................... 8
BLOCK DIAGRAM .................................................................................................... 9
SCHEMATIC DIAGRAM ........................................................................................... 10
POWER / AMP /TUNER / TAPE .................................................................................................... 10
CD .................................................................................................................................................... 11
CONTROL ........................................................................................................................................ 12
PCB PATTERN LAYOUT ........................................................................................ 13
ELECTRICAL PART LIST ....................................................................................... 17
- 1 -
Safety Precautions
WARNING
THIS APPLIANCE TO RAIN OR MOISTURE.
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.
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 :
OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS
RADIATION EXPOSURE.
CAUTION :
PLUG TO WIDE SLOT, FULLY INSERT.
ATTENTION :
LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU'AU FOND.
: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
CAUTION
RISK OF ELECTRIC SHOCKS
DO NOT OPEN
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
LASER SAFETY
USE OF ANY CONTROLS, ADJUSTMENTS, OR PROCEDURES
TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF
POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE
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
water - for example, near a bathtub, washbowl, kitchen sink,
used near
laundry tub, in a wet basement, or near a swimming pool,
and the like.
PORTABLE CART
Figure 2
only as recommended by the manufacturer.
ceiling
5. Ventilation - The appliance should be situated so
location or position does not interfere with
ventilation. For example, the appliance
on a bed, sofa, rug, or
ventilation
as a bookcase or cabinet that may impede the flow
through the ventilation openings.
6. Heat - The appliance should be situated away from
sources such as radiators, heat registers,
appliances (including amplifiers) that
7. Power Sources - The appliance should be
power supply only of the type
instructions or as marked
8. Grounding or Polarization - The precautions that
taken so that the grounding or
appliance is not defeated.
9. Power - Cord Protection - Power-supply cords
routed so that they are not likely to be
by items placed upon or
attention to cords at
point where
10.Protective Attachment Plug - If the appliance is equipped with
an attachment plug having overload
safety feature.
resetting of
required, be sure the
replacement plug
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
from power lines.
openings; or, placed in a built-in installation, such
protective device. If replacement of the plug is
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
its proper
should not be situated
similar surface that may block the
stoves, or other
produce heat.
connected to a
described in the operating
on the appliance.
polarization means of an
walked on or pinched
against them, paying particular
plugs, convenience receptacles, and the
they exit from the appliance.
protection. This is a
See Instruction Manual for replacement or
service technician has used a
specified by the manufacturer that has the
that its
of air
should be
should be
heat
away
- 2 -
Safety Precautions
13.Outdoor Antenna Grounding - If an outside antenna
connected to the receiver be sure the antenna
system is
grounded so as to provide some protection against voltage
surges and built-up static
Electrical Code,
regard to
proper grounding of the mast and supporting
charges. Article 810 of the National
ANSI/NFPA 70, provides information with
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.
EXAMPLE OF ANTENNA
GROUNDING
GROUND CLAMP
ELECTRIC
SERVICE
EQUIPMENT
NEC - NATIONAL ELECTRICAL CODE
POWER SERVICE GROUNDING
ELECTRODE SYSTEM
(NEC ART 250 PART H)
ANTENNA LEAD
IN WIRE
ANTENNA DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
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.
is
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
b) Objects have fallen, or liquid has been spilled
damaged; or
into the
appliance; or
c) The appliance has been exposed to rain; or
d) The appliance does not appear to operate
exhibits a marked change in
performance; or
e) The appliance has been dropped, or the
normally or
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.
- 3 -
Adjustments
1. TAPE SECTION
Input Level
Measurement
Point
Output Level
Measurement
Point
R-CH
47 kohm
Input Point
VTVM
Scope
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 L603 to obtain 80 KHz±100Hz
TAPE ALIGNMENT CHART
Step Item Reference Value Test Tape Adjust Point Test Point Note FIG.
Tape Speed
1
Adjustment
2
Azimuth Adjustment
Recording Bias Oscilla-
tor Frequency Adjust-
3
ment
Normal
High
3,015~3,025Hz MTT-111N RV601
3,000~3,010Hz MTT-111N RV601
5,820~6,180Hz MTT-111N - - - - - -
Maximum Level
Phase:Within90°
80 KHz± 0.5
MTT-114N Head Screw
MTT-5511 L603
Line Out L/R
Channel
Line Out L/R
Channel
Shorted
TP601,
TP602
Line Out L/R
Channel
TP603,GND
Confirm Wow & Flutter is within 0.35%
Confirm Tape Speed
of end position after
adjustment at tape
start position
Confirm High speed
after normal speed
adjustment
Adjust with frequency
counter connected.
FIG.1
FIG.1
FIG.1
FIG.2,3,4
FIG.1
Test Tape : MTT-111N(3kHz)
MTT-5511(Blank)
Set
Frequency Counter
Output Level
Measurement Point
FIG. 1 : Tape Speed & Record Bias Oscillator
Frequency Adjust Circuit
L-CH
Screw
Angle
Peak
R-CH
Peak
within
1 dB
Output Level
L-CH
R-CH
Peak
Peak
within
1 dB
Screw Angle
FIG. 3 : Tape Azimuth Adjust Head Screw & Waveform
- 4 -
Adjust with Frequency
Counter Connected
Forward
Side
Reverse
Side
FIG. 2 : Tape Azimuth Adjust Location
(Record/Playback Head)
Test Tape
MTT-114N
(10kHz)
L-CH
Set
Screen Pattern
In Phase 45 90 135 180
Good Wrong
Oscilloscope
V H
Output Level
Measurement Point
FIG. 4 : Tape Azimuth Adjust Circuit & Waveform
Exploded View and Mechanical Parts List
Model No:XL-125/R
- 5 -
AXL-122L/124L/125R/123DP/125DP/128L
Exploded View and Mechanical Parts List
Model No:XL-125/R
NO PARTS NAME CODE NO. DESCRIPTIONS Q'TY REMARKS
1 WINDOW DOOR A 9CD16177A0 MIPS 1
2 WINDOW DOOR B 9CD16177B0 MIPS 1
3 DOOR COVER A 9CD18123A0 MIPS 1
4 DOOR COVER B 9CD18123B0 MIPS 1
5 SRING DOOR EJECT R 9CD30080R0 STS 0.9 1
6 SRING DOOR EJECT L 9CD30080L0 STS 0.9 1
7 DOOR FRAME A 9CD18113A0 MIPS 1
8 DOOR FRAME B 9CD18113B0 MIPS 1
9 CUSHION FOOT 9CD4207700 URETHAN 2
10-A DAMPER GEAR B 9CD2603200 ACETAL 2
10-B DAMPER BASE B 9CD2603300 ABS 2
11-A LOCKER BASE 9CDOB01900 ABS 2
11-B LOCKER CAM 9CDOB02000 ABS 2
11-C LOCKER SPRING 9CDOB01600 STS 2
12 BRKT SIDE 9CD2412900 ABS 2
13 KNOB CD A 9CD1342200 ABS 1
14 KNOB CD B 9CD1342300 ABS 1
15 DECO EQ L 9CD10034L0 ACRYL 1
16 DECO EQ R 9CD10034R0 ACRYL 1
17 KNOB FUNCTION 9CD1342400 ACRYL 4
18 PLATE FUNCTION 9CD0911900 PC 4
19 KNOB POWER 9CD1342600 ABS 1
20 KNOB DISC 9CD1342500 ABS 1
21-A CASSETTE DECK LOGIC 9CD6007800 ADR-243AMW 1
21-B CASSETTE DECK LOGIC 9CD6007700 ADR-243DSW 1
22 BADGE DAEWOO 9CD1500900 ABS 1
23 PANEL FRONT 9CD0308600 MIPS 1
24 DECO VOL 9CD1003300 ABS 1
25 KNOB VOL 9CD1342700 ABS 1
26 WINDOW FLT 9CD1617800 ACRYL 1
27 CD DECK MECHA 9CD6006900 1
28 DOOR CD 9CD1812400 MIPS 1
29 WIN DOOR CD 9CD1617600 ACRYL 1
30 PLATE LED 9CD0911700 PVC T=0.5 1
31-A GUIDE FLT 9CD2506500 ABS 1
31-B GUIDE FLT 9CD2506300 ABS 1
31-C GUIDE FLT 9CD2506700 ABS 1
32 PLATE FLT 9CD0909800 PVC T=1.0 2
33 COVER TOP 9CD0411400 MIPS
124L/125L/128L/123DP
122L
OPTION
122L/124L/125L/123DP
125S/128L/125DP
128
- 6 -
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