Daewoo | DWF-753 | Service manual | Daewoo DWF-753 Service manual

Daewoo DWF-753 Service manual
S/M No.:WF750SE002
Service Manual
Auto Washer
Model : DWF-750/752/800/802
753/755/803/805
756/758/806/808
• Caution:
In this Manual, some parts can be changed for improving,
their performance without notice in the parts list. So, if you
need the latest parts information, please refer to PPL(Parts
Price List) in Service Information Center (http://svc.dwe.co.kr).
Feb.2001
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WASHING MACHINE
Contents
1. SPECIFICATIONS................................................................................................................... 2
2. STRUCTURE OF THE WASHING MACHINE ....................................................................... 3
3. FUNCTIONS OF THE CONTROL PANEL ............................................................................. 4
4. DIRECTIONS FOR INSTALLATION AND USE
LOCATION OF WASHER ............................................................................................................... 6
DRAIN SYSTEM.............................................................................................................................. 6
HOW TO CONNECT THE INLET HOSE........................................................................................ 7
HOW TO CLEAN THE FILTER ....................................................................................................... 8
5. FEATURE AND TECHNICAL EXPLANATION
FEATURE OF THE WASHING MACHINE ..................................................................................... 9
WATER CURRENT TO ADJUST THE UNBALANCED LOAD ...................................................... 9
AUTOMATIC WATER SUPPLY SYSTEM ..................................................................................... 9
AUTOMATIC DRAINING TIME ADJUSTMENT ........................................................................... 10
SOFTENER DISPENSER ............................................................................................................. 11
AUTOMATIC UNBALANCE ADJUSTMENT ................................................................................ 12
CIRCULATING-WATER ................................................................................................................ 12
LINT FILTER.................................................................................................................................. 13
RESIDUAL TIME DISPLAY........................................................................................................... 13
DRAIN MOTOR ............................................................................................................................. 13
GEAR MECHANISM ASS’Y ......................................................................................................... 14
PRINCIPLE OF BUBBLE GENERATOR ...................................................................................... 14
FUNCTIONAL PRINCIPLE OF BUBBLE WASHING MACHINE ................................................. 15
6. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT
GEAR MECHANISM ASS’Y REPLACEMENT............................................................................. 16
MOTOR SYNCHRONOUS AND VALVE REPLACEMENT.......................................................... 18
BRAKE ADJUSTMENT................................................................................................................. 18
7. THE REPAIR METHOD OF GEAR MECHANISM FOR CLUTCH SPRING PROBLEM
THE STRUCTURE OF GEAR MECHANISM............................................................................... 19
HOW TO CHECK THE CLUTCH SPRING PROBLEM................................................................ 20
THE PROCESS OF DISASSEMBLE............................................................................................ 21
THE PROCESS OF ASSEMBLE.................................................................................................. 23
8. TROUBLE SHOOTING GUIDE
CONCERNING WATER SUPPLY..................................................................................................25
CONCERNING WASHING ........................................................................................................... 26
CONCERNING DRAINING........................................................................................................... 27
CONCERNING SPINNING ........................................................................................................... 28
CONCERNING OPERATION ....................................................................................................... 29
9. PRESENTATION OF THE P.C.B ASS’Y .............................................................................. 30
APPENDIX
WIRING DIAGRAM ....................................................................................................................... 31
PARTS DIAGRAM & PARTS LIST................................................................................................ 35
CIRCUIT DIAGRAM ...................................................................................................................... 44
1. SPECIFICATIONS
NO.
DWF-750/753/756
ITEM
DWF-752/755/758
1 POWER SOURCE
POWER
DWF-800/803/806
DWF-802/805/808
AVAILABLE IN ALL LOCAL AC VOLTAGE
50Hz
320W
2
CONSUMPTION 60Hz
300W(110~127V) / 340W(220V)
MACHINE
NET
28kg/28.5kg(pump)
28.5kg/29kg(pump)
WEIGHT
GROSS
31.5kg/32kg(pump)
32kg/32.5kg(pump)
3
4 DIMENSION (WXHXD)
5 MATERIAL OF INTERNAL TUB
525X858X535
525X948X535
525X858X535
PLASTIC
STAINLESS STEEL
6 WATER LEVEL SELECTOR
HIGH(55l), MID(45l), LOW(31l)
7 OPERATING WATER PRESSURE
0.3kgf/cm2~8kgf/cm2 (2.94 N/cm2~78.4N/cm2)
8 MAXIMUM MASS OF TEXTILE
5.5kg
6.0kg
WASH
125~145(50Hz), 130~150(60Hz)
SPIN
710~725(50Hz), 760~785(60Hz)
SUIT
50(50Hz), 60(60Hz)
REVOLUTION
9
PER MINUTE
10 WATER CONSUMPTION
APPROX. 130l/CYCLE
11 WATER LEVEL CONTROL
ELECTRONICAL SENSOR
12 ANTI NOISE PLATE
13 GEAR MECHANISM ASS’Y
2
OPTION
SPUR GEAR
14 LINT FILTER
O
15 SOFTENER INLET
O
16 ALARM SIGNAL
O
17 AUTO. WATER SUPPLY
O
18 FUNCTION FOR BUBBLE
OPTION
19 AUTO RE-FEED WATER
O
20 AUTO POWER OFF
O
SPECIFICATIONS
525X948X535
2. STRUCTURE OF THE WASHING MACHINE
The parts and features of your washer are illustrated on this page.
Become familiar with all parts and features before using your washer.
NOTE
• The drawing in this book may vary from your washer model. They are designed to show the different features of all models covered by this book, Your model may not include all features.
• Page references are included next to same features.
Refer to those pages for more information about the features.
• HOT WATER TAP
After using the washer, close the water tap.
In case of the single valve model,
there is no hot water valve.
• COLD WATER TAP
After using the washer,
close the water tap
• SOFTENER INLET
• DETERGENT CASE
• BLEACH INLET
• LINT FILTER
• CONTROL PANEL
• POWER SWITCH
• GROUND WIRE
In case of 3-wire
power cord, ground
wire will not be
provided
• POWER CORD
• PULSATOR
• DRAIN HOSE
• ADJUSTABLE LEG
Accessories
DRYTEN(OPTION)
HOSE ADAPTER
UNDER COVER(OPTION)
HOSE CONNECTOR(OPTION)
P
U
In case of screw shaped inlet hoses
water tap adapters will not be provided.
INLET HOSE(OPTION)
DRAIN HOSE
NON PUMP MODEL
CONNECTOR INLET(OPTION)
PUMP MODEL
STRUCTURE
3
3. FUNCTIONS OF THE CONTROL PANEL
Control panel has micom sensor.
As the buttons are pressed, the lamps indicating the selection of your desired washing program will light up.
1. DWF-750/752/800/802
HOURS
RES.
CONTROL
PROGRAM
2. DWF-753/755/803/805
• Press this switch to turn the power on or off.
• It can be used to choose water temperature to be supplied.
• As the button is pressed, water temperature will be repeated.
COLD → COLD+HOT → HOT
• In case of the single valve model, there is no wash temperature selector function.
• It can be used to adjust amount of water according to the size of the load to be washed.
• As the button is pressed, water level is selected by MID → HIGH → LOW
RES.
• It can be used to pre-engage time for wash.
• It is the button for the partial process or the combination of each process (wash, rinse,
spin)
CONTROL
• If you want to change wash time, rinse times, spin time, you must press this button after
selecting each process by the process button. Also, this button can be used to spin only.
PROGRAM
• It can be used to select the full-automatic program.
• As the button is pressed, program will be selected by following order :
FUZZY → FUZZY+SOAK → HEAVY → HEAVY+SOAK → SPEEDY → SUIT(WOOL)
• Operation and temporary stop is repeated as it is pressed.
• When you want to change program in operating;
press the “START/HOLD” button → Select the program that you want to change → press
the “START/HOLD” button again.
4
CONTROL PANEL
3. DWF-756/758/806/808
• Press this switch to turn the power on or off.
• It can be used to choose water temperature to be supplied.
• As the button is pressed, water temperature will be repeated.
COLD → COLD+HOT → HOT
• In case of the single valve model, there is no wash temperature selector function.
• It can be used to adjust amount of water according to the size of the load to be washed.
• As the button is pressed, water level is selected by MID → HIGH → LOW
• It can be used to cancel the full-automatic program.
• When the button is pressed, the display will light down.
If you want to wash, rinse or spin, you can press one of the buttons.
• It can be used to pre-engage time for wash.
• It can be used to select the full-automatic program.
• As the button is pressed, program will be selected by following order :
FUZZY → HEAVY → SUIT(WOOL) → BLANKET → SPEEDY
• It can be used to adjust washing time.
• As the button is pressed, it will repeat.
6 MIN → 9 → 12 → 15 → 18 → SOAK
• It can be used to adjust rinse times.
• As the button is pressed, it will repeat.
• 1 TIME → 2 → 3 → 4 → 5
• It can be used to adjust spin time.
• As the button is pressed, it will repeat. 1MIN → 3 → 5 → 7 → 9
• Operation and temporary stop is repeated as they are pressed.
• When you want to change program in operating;
press the “START/HOLD” button → Select the program that you
want to change → press the “START/HOLD” button again.
PROCEDURE
5
4. DIRECTIONS FOR INSTALLATION AND USE
§ è Location Of Washer
Check location where washer will be installed. Make sure you have everything necessary for correct installation.
Proper installation is your responsibility.
• Do not place or store your washer below 0˚C(32˚F) to avoid any damage from freezing.
• Install the washer on the horizontal sold foor.
If the washer is installed on an unsuitable floor, it could make considerable noise, vibrate and cause a malfunction.
If washer is not level, adjust the front leg(A) up or down for horizontal setting.
C
• Earthed electrical outlet(B) is required with 20cm of bottom back of
washer cabinet.
• Hot and cold water faucets (C) must be within 1M of the upper back of
the washer cabinet and provide water pressure 0.3kgf/cm 28kgf/cm2(2.94N/cm2-78.4N/cm2).
B
A
UP
DOWN
§ è Drain System
Never forget to install drain hose before operating your washer.
The packing box is opened, there are a drain hose.
• Conect the drain hose to the drain outlet at the back side of the washer.
Non-Pump Model
Pump Model
Drain Outlet
Drain hose
Drain hose
NOTES
The opening must not be obstructed by carpeting when the washing machine is installed on a carpeted floor.
Non-Pump Model
1 In case that it goes over a door sill.
Don’t let the height of the drain
hose exceed 20cm from the bottom
of washer.
2 In case of extending the drain hose.
Don’t let the total length exceed 3m.
3 Be careful that the end of the drain
hose is not immersed in water.
3m
20Cm
Pump Model
Laundry tub drain system
• Top of tub must be at
least 86cm (34inches)
high and no higher than
130cm from bottom of
washer (A)
6
DIRECTIONS
Standpipe drain system
A
• Needs a 3cm minimum diameter standpipe with minimum
carry away capacity of 30liters per minute.
• Top of tub must be at
least 86cm(34inches)
high and no higher than
B
130cm from bottom of
washer (B)
§ è How to Connect the Inlet Hose
Be careful not to mistake in supplying between the hot(maximum : 50˚C) and cold water.
In using only one water tap or in case of attached one water inlet valve, connect the inlet hose to the cold water inlet
valve.
Do not over tighten : this could cause damage to couplings.
FOR ORDINARY TAP
1
Pull down the collar
of the inlet hose to
separate it from the
water tap adapter.
2
Loosen the four
screws at the water
tap adapter, but don’t
loosen the screws until
they are separated from
the water tap adapter.
3
Connect the water tap
adapter to the water tap and
tighten the four screws evenly
while pushing up the adapter
so that the rubber packing
can stick to the water tap
tightly.
¡ collar
TAPE
4
Remove the tape,
and screw connector
B into connect A tightly.
5
Connect the inlet
hose to the water tap
adapter by pulling down
the collar of the hose end.
6
Connect the inlet hose adapter
of the hose to the water inlet of
the washer by turning it clockwise to be fixed tightly.
Connector A
Connector B
• Please check the rubber packing
inside the inlet hose adapter of
the hose.
FOR SCREW-SHAPED TAP
1
Connect the inlet
hose to the water tap
by screwing the connector D tightly.
2
Connect the connector-inlet supplied if
necessary.
3
Insert the inlet hose adapter
into the water inlet of washer
and turn it to be fixed.
Connector
Inlet
Connector D
Rubber
Packing
Connector D
Inlet Hose
Connector C
Hose
Rubber
Packing
Connector C
• Assert the packing in the inlet
CONNECTION
7
§ è How To Clean The Filter
CLEANING THE LINT FILTER
1
2
Pull the Filter frame
upward.
3
Turn the lint filter
inside out, wash the
lint off with water.
Lint Filter
Return the filter as it was, and
insert the filter frame into the
slot.
Filter Frame
CLEANING THE WATER INLET FILTER
• Clean the filter when water leaks from the water inlet.
1
2
Pull the
power plug
out before
cleaning it.
3
Turn off the
water supply
to the washer
and separate
the inlet hose.
Pull the
inlet filter out.
4
Remove the dirt
from the inlet filter
with a brush.
CLEANING THE DRAIN FILTER
• In case of “U” shaped drain hose, this filter’s equipped at the back side of washer.
• This drain filter is to screen the foreign stuffs such as threads, coins, pins, buttons etc ..
• If the drain filter is not cleaned at proper time (every 10 times of use), drain problem could be caused.
1
Put down the
remained water in the
hose. And put a container
under the filter to collect
water.
2
Turn the cap counterclockwise.
3
Pull out the filter assembly off
the case of the main body.
FILTER
SLIT
CASE
CAP
CAP
FILTER
4
CONTAINER
Clean the drain filter
removing the foreign
stuffs.
FILTER
5
Put in the filter along the
guiding prominence of the
case. Please note the left
position of the filter adjusting
the groove to the guide rib.
FILTER
GUIDE
RIB
CAP
SLIT
CONVENIENCE
Turn the cap clockwise tightly.
CASE
CAP
8
6
CAP
5. FEATURE AND TECHNICAL EXPLANATION
Feature of the Washing Machine
1 The first air bubble washing system in the world.
2 Quiet washing through the innovational low-noise design.
3 The wash effectiveness is much more enhanced because of the air bubble washing system.
4 The laundry detergent dissolves well in water because of the air bubble washing system.
5 The adoption of the water currents to adjust the unbalanced load.
6 One-touch operation system.
Water Current to Adjust the Unbalanced Load
It is a function to prevent eccentricity of the clothes after wash by rotating pulsator C.W and C.C.W for 35
seconds.(But, the SUIT course have no operation of the water currents to adjust the unbalnced load.)
EFFECT
It reduces vibration and noise effectively while spinning.
WATER FLOW
WASH
DRAIN
MOTOR
C.W
SINGAL
C.C.W
TIME(SEC.)
SPIN
0.4
FILL
0.4
RINSE 1
0.4
DRAIN
0.4
SPIN
0.4
FILL
RINSE 2
0.4
•••••••
DRAIN
•••
40 SEC. (About 25 Times)
* When the water level is “HIGH”
Automatic Water Supply System
The water level would be lowered because the clothes absorbs water at the beginning of washing. Therefore, after
60 seconds, the operation is interrupted to check the water level, and then the water is supplied again until the selected water level is reached.
EXPLANATION
9
Automatic Drainning time Adjustment
This system adjusts the draining time automatically according to the draining condition.
Good draining
The washer begins spin process after drainage.
Bad draining
Draininig time is prolonged.
No draining
Program is stopped and gives the alarm.
Draining
condition
FUNCTIONAL PRINCIPLE
1 The micom can remember the time from the begining of drain to reset point when the pressure switch reaches to
“OFF” point
Drain Time
Movement of the Program
Less than
Continue draining
10 minutes
More than
Program stops and gives the alarm with
blinked on display lamp.
10 minutes
2 In case of continuous draining, residual drain time is determined by micom.
Draining time as a whole = D + 40
Residual drain time.
The time remembered by micom.
10
EXPLANATION
Softener Dispenser
This is the device to dispense the softener automatically by centrifugal force.
This is installed inside the auto-balancer.
FUNCTIONAL PRINCIPLE
1 Softener stays in room (A) when poured into softener inlet.
2 Softener moves from (A) to (B) by centrifugal force during intermittent spin process.
3 Softener flows from (B) to (C) during rinse process next to intermittent spin.
4 Softener moves from (C) to (D) by centrigfugal force during second intermittent spin.
After spin process is finished, the softener is added into the tub through softener outlet.
FLOW OF THE SOFTENER
Wash
Normal
Program
Intermittent
Spin
Centrifugal
force
(A)
Hold
Intermittent
Spin
Rinse
Flow in
Centrifugal
force
Flow in
(B)
(C)
Spin
(D)
FLOW OF THE SOFTENER INSIDE OF THE BALANCER
Room inside
the balancer
A
B
C
D
Centrifugal force
Flowing by weight
NOTES
Softener moves into the next room when r.p.m of the tub is more than 100 r.p.m.
HOW TO CHECK MOVEMENT
Pour a reasonable amount of “MILK” into softener dispenser and operate the washer with no load. In final
rinse cycle, make sure that the milk is added into the
tub through softener outlet.
Balancer
Softener
outlet
B
A
D
C
Softener inlet
EXPLANATION
11
Automatic Unbalance Adjustment
This system is to prevent abnormal vibration during intermittent spin and spin process.
FUNCTIONAL PRINCIPLE
1 When the lid is closed, the safety switch contact is “ON” position.
2 In case that wash loads get uneven during spin, the outer tub hits the safety switch due to the serious vibration,
and the spin process is interrupted.
3 In case that P.C.B. ASS’Y gets “OFF” signal from the safety switch, spin process are stopped and rinse process is
started automatically by P.C.B. ASS’Y.
4 If the safety switch is operated due to the unbalance of the tub, the program is stopped and the alarm is given.
NOTES
The alarm finished when you close the lid after opening it. Check the unbalance of the wash load and the
installation condition.
Circulating-Water
CIRCULATING-WATER
The washing and rinsing effects have been
improved by adopting the water system in
which water in the tub is circulated in a
designed pattern.
When the pulsator rotates during the washing
or rinsing process, the water below the pulsator vanes creates a water currents as shown
in figure.
The water is then discharged from the upper
part of the tub through the water channel.
About 40 L/min. water is circulated at the ‘high’
water level, standard wash load and standard
water currents.
12
EXPLANATION
Filter
Tub
Water
channel
Pulsator
Outer tub
Lint Filter
Much lint may be obtained according to the kind of
clothes to be washed and some of the lint may also
sticks to the clothes.
To minimize this possibility a lint filter is provided on
the upper part of the tub to filter the wash water as it
is discharged from the water channel. It is good to
use the lint filter during washing.
Filter
Filter
Bleach
Bleach
Inlet
Inlet
Pulsator
Pulsator
HOW TO REPLACE LINT FILTER
1 Pull the filter frame upward.
2 Turn the lint filter inside out, and wash the lint off with water.
3 Return the filter as it was, and fix the filter frame to the slot.
Residual Time Display
When the START/HOLD button is pressed, the residual time (min.) is displayed on the time indicator, and it will be
counted down according to process.
When operation is finished, the TIME INDICATOR will light up
.
Drain Motor
STRUCTURE
Pull
Loosen
Pulley
Lever
Inductive ring
Magnet
Coil of motor
Magnet of motor
FUNCTIONAL PRINCIPLE
1 When the DRAIN MOTOR connected to the power source, the DRAIN MOTOR rotates with 900 r.p.m and
revolves the pulley by gear assembly for reducing.
2 When the pulley is rotated, the pulley winds the wire to open the drain valve.
3 Therefore, rotation of pulley changed to the linear moving of wire.
4 The wire pulls the brake lever of Gear Mechanism Ass’y within 5 seconds.
5 After the wire pulled, gear assembly is separated from motor and condition of pulling is held by operation of the
lever.
6 When the power is turned off, the drain valve is closed because the wire returns to original position.
EXPLANATION
13
Gear Mechanism Ass’y
The proper water currents is made by the rotation of pulsator at a low speed to prevent the damage to the small
sized clothes.
Pulsator shaft
Spin shaft
One way clutch
bearing
Gear unit as
Sun gear
Internal gear
Planetary gear
Clutch spring
Brake lever
Clutch boss
Gear pulley
Motor
Pulsator
1490 r.p.m
(50Hz)
Gear unit as
1 revolution
Motor
Pulsator
Gear Unit as
Gear Pulley
5 revolutions
138 r.p.m
720 r.p.m
Tub
Gear pulley
Directly
720 r.p.m
V-belt
Principle of Bubble Generator
STRUCTURE
Bobbin & coil
Armature
Magnet
Bellows
Trans core
Air
Air
Air out hole
Protector A
Air in hole
Protector B
14
EXPLANATION
PRINCIPLE OF INTAKE & OUTLET OF THE AIR
INTAKE : ARMATURE moves up, and BELLOWS inhales the air. At the same time, protector B is open and A is
close.
OUTLET : ARMATURE moves down, and BELLOWS exhausts the air. At the same time, protector B is close and A
is opend.
FUNCTIONAL PRINCIPLE OF TRANS & MAGNET
¡ The phase of A.C electric power changes to 60 cycle/second.
¡ The magnetic pole of trans core is changed by the change of the phase of A.C electric power.
¡ The core repeats push and pull (3600 times/min.) of the armature magnet.
A.C
A.C
N
S
LEAF SPRING
NS
TRANS CORE
NS
S
N
MAGNET
Functional Principle of Bubble Washing Machine
ACROSS SECTION
Air bubble
Tub
Outer tub
Pulsator
FUNCTIONAL PRINCIPLE
Bubble generator supplies the air from the bottom of outer tub to the inner space of pulsator, the air is dispersed by
the rotation of pulsator. Air-bubble is created by the centrifugal force, and rises up.
EXPLANATION
15
6. DIRECTIONS FOR DISASSEMBLY AND ADJUSTMENT
Warning
BEFORE ATTEMPTING TO SERVICE OR ADJUST ANY PART OF THE WASHING MACHINE, DISCONNECT THE POWER CORD FROM THE ELECTRIC OUTLET.
Gear Mechanism Ass’y Replacement
¡ Raise the top plate on the outer cabinet.
¡ Remove outer tub cover from the tub ass’y.
¡ Loosen the pulsator mounting screw and remove
¡ Remove the spinner shaft flange nut by using ‘T’
¡ Remove the tub ass’y.
type box wrench.
NOTES
To assemble the gear mechanism ass’y, reverse
the disassembly procedure.
16
DIRECTIONS
the pulsator.
¡ Lay the front of the washer on the floor.
¡ Remove four bolts mounting the plate-gear protect by
¡ Remove four bolts mounting the gear mechanism
ass’y by using a box wrench.
using a box wrench and remove plate-gear protect.
¡ Remove the V-belt.
¡ Pull out the gear mechanism assy.
DIRECTIONS
17
Motor Synchronous And Valve Replacement(Non Pump Model)
¡ Lay the front of the floor.
¡ Loosen two special screw and motor synchronous.
¡ Take out the wire of motor synchonous from the
bracket.
¡ Separate the motor sycnchronous from the base.
¡ Turn the valve by using screw driver as shown in
picture.
¡ Remove the valve lid from the valve drain assy.
Brake Adjustment
¡ Loosen the adjustment bolt and turn the adjustment bolt until the end of the bolt touches to the
brake lever.
¡ Tighten the lock nut and apply a small amount of
paint-lock.
Adjustment bolt
Clutch lever
Gear mechanism ass'y
18
DIRECTIONS
Brake lever
NOTES:
1. The brake adjustment has been made at the
factory, so that it is not re-adjust.
However, in case of insufficient brake operation,
problem the upper procedure.
2. Overtightening of the adjustment bolt will cause
poor brake performance.
3. Undertightening of the adjustment bolt will
cause continuous braking and thereby.
cause the problems of the motor during the
spingcycle.
7. THE REPAIR METHOD OF GEAR MECHANISM FOR CLUTCH SPRING PROBLEM
The Structure Of Gear Mechanism
Clutch Lever
Bearing
Clutch Boss
Clutch Tip
Clutch spring
Coupling
Pulley
Spring Washer
Fastening Nut
Pulley Shaft
Clutch Boss Ass’y
Pulley Shaft
Fastening Nut
Coupling
Spring Washer
Drum plate
Pulley
¡ ‹TOOL FOR REPLACING THE CLUTCH BOSS ASSEMBLE¡
¡‹
Tool name
Specification
Q’ty
Fixing jig
1
Ratchet handle
1
Socket and extension bar
Some cotton yarn
socket : 10mm, 17mm
per each
some
THE REPAIR
19
How To Check The Clutch Spring Problem
PROBLEM
1) THE LAUNDARY IS IN THE SPIN TUB UNEVENLY WHEN JUST STARTING SPIN PROCESS.
2) THEREFORE, IT CAUSE THE SERIOUS NOISE AND VIBRATION WHEN WASHING AND SPINNING
PROCESS OR SUPPLING WATER IRREGULARY WHEN SPINNING PROCESS
AND CAUSE SHORT OF SPIN PERFORMANCE.
CHECKING METHOD
IN THIS CASE, YOU MUST EMPTY THE SPIN TUB FIRST.
1) TO CHECK THE REVOLUTION OF SPIN TUB. IF THE SPIN TUB DOES NOT REVOLVE AND ONLY
THE PULSATOR IS TURNING, THAT IS CLUTCH SPRING DEFECT.
2) TO CHECK THE SPIN SPEED(RPM) BETWEEN SPIN TUB AND PULSATOR.
IF YOU FIND THE DIFFERENT SPIN SPEED BETWEEN SPIN TUB AND PUSATOR, THIS IS ALSO
CLUTCH SPRING DEFECT.
IN THIS CASE, WE ARE GOING TO SUPPLY THE CLUTCH BOSS ASSEMBLY INSTEAD OF GEAR
MECHANISM ASSEMBLEY. PLEASE REFER TO FOLLOWING FIG.
THE CLUTCH BOSS ASSEMBLY
NO.
PARTS NAME
SPECIFICATION
CODE
Q’TY
1
CLUTCH SPRING
1.5*1.5
3615110000
1
2
CLUTCH BOSS
PP
3619301300
1
3
GREASE
beacon#325 3g
PACKING PACKING THE CLUTCH BOSS ASS’Y
METHOD BY USING VINYL PACK
CLUTCH BOSS ASS’Y PART CORD : 3610028000
20
THE REPAIR
1
The Process Of Disassemble
Disassemble 1
No.
Process
Notice
Use wrench or driver
- ratchet handle
- extension bar
- socket : 10mm
1
Remove the protector
Release screws marked 4-point
2
Remove the v-belt
Use fixing jig for pulley as to
see fig 1.
and 17mm-socket for nut
3
Loosen the fastening nut
Take out plain washer if it has
4
Disassemble the spring washer
THE REPAIR
21
Disassemble 2
No.
5
Process
Notice
Disassemble the pulley
Catch the boss and pull
upward with spiral rotate in the
clockwise direction
6
Disassemble the clutch boss
assembly
7
Separate coupling from clutch
boss ass’y
Clean the drum plate, coupling
surface and contact face
between drum plate and coupling
8
22
THE REPAIR
Cleaning
It is necessary to keep cotton
piece goods being dry and
clean
The Process Of Assemble
Assemble 1
No.
Process
Notice
Check the uneven face of coupling is assembled upward
1
Assemble the coupling
2
Assemble the new clutch boss
ass’y
3
Assemble the pulley
- Push in the clutch boss ass’y
with rotating on the clockwise
direction.
- After assembling, rotate on the
clockwise more 2~3 teeth and
pull out the pulley shaft upward
If there was plain washer, you
have to assemble plain washer
the first and then assemble
spring washer
4
Assemble the spring washer
THE REPAIR
23
Assemble 2
No.
Process
Assemble the fastening nut
5
6
Notice
- Use fixing jig and 17mm
socket wrench
as if disassembling,
as fastening torque about
100~200kgf-cm.
- Check the end-play, up and
downward and check the binding force, too much or not on
bi-direct of rotation.
Assemble the Belt
7
Assemble the protector
keep distance 2~3mm
Synchronous
Motor
8
Final checking
Clutch Tip
3.5~4.5
24
Drain
Valve
THE REPAIR
Finally, check the distance
between brake lever and control bolt. (2~3mm)
Also, check the interferance
depth both clutch tip and clutch
boss(3.5~4.5mm)
8. TROUBLE SHOOTING GUIDE
NOTES
1. When replace the P.C.B. ASS’Y do not scratch the surface of the P.C.B. ASS’Y.
2. Disconnect the power cord from the electric outlet.
Concerning Water Supply
PROBLEM
CHECK POINT
CAUSE
Do you open the water
tap?
NO
SOLUTION
Open the water tap.
YES
YES
Is the filter of the water
inlet valve clogged with
dirt?
Clean the filter.
NO
WATER IS
NOT SUPPLIED.
Increase the water pressure.
NO
Is the water pressure
sufficient?
(0.3~8 kgf/cm2)
NOTE : Open the water tap fully and measure
the flow rate.
Flow
rate(l/min.)
Water pressure
(kgf/cm2)
YES
11.5
15.0
18.0
20.3
24.1
27.4
0.3
0.4
0.5
0.6
0.8
1.0
From the upper results, you know that the flow rate more than
11.5l/min. is essential for water supply.
Does the water inlet
valve make operating
sound?
NO
Water inlet valve
is defective.
Change water inlet valve.
Improper connection of
the connector or the terminal.
Connect the connector or
the terminal properly.
P.C.B AS is defective.
Change the P.C.B AS.
Lead wire is defective.
Change the lead wires.
YES
Is the connector or the
terminal connected
properly?
NO
YES
Is the output voltage of
the P.C.B normal?
NO
YES
TROUBLE SHOOTING
25
PROBLEM
CHECK POINT
Does the water supply
continue while the power
is turned off?
CAUSE
SOLUTION
YES
The water inlet valve is
defective.
Change the water inlet
valve.
YES
The triac of P.C.B is
defective.
Change the P.C.B ASS’Y.
NO
Does the water supply start
as soon as you press the
power switch?
NO
WATER SUPPLY IS NOT
STOPPED.
Operate the washer after
setting the water level to
“HIGH”
NO
Does the water supply
continue after the water
reaches to the “HIGH”
level?
YES
Is the air tube of water
level switch kinked or
deformed?
Normal operation.
YES
NO
Air tube is defective.
Change the air tube.
Pressure switch is defective.
Change the pressure
switch.
Concerning Washing
PROBLEM
CHECK POINT
CAUSE
SOLUTION
Does the motor operate after finishing water supply?
NO
YES
Does pulsator rotate in
only one direction?
YES The triac of P.C.B is
defective.
NO
THE PULSATOR DOES
NOT ROTATE
EVEN IF THE
WATER IS
SUPPLED.
YES
NO
Is the motor coil disconnected?
YES
Is the V-belt worn out?
NO
TROUBLE SHOOTING
Normal
Does the motor make
operating sound?
Is the connection condition of capacitor terminal good?
26
Change the P.C.B
ASS’Y.
YES
NO
Motor is defective.
Improper connection
YES
V-belt is defective.
Change the motor.
Connect the terminal
properly.
Change the V-belt.
Change the motor.
Concerning Draining
PROBLEM
CHECK POINT
Do you install the
drain hose properly?
CAUSE
NO
SOLUTION
Improper installation
Install the drain hose
properly.
Malfunction of drainage
by the foreign matter
Remove the foreign matter from the pump housing
Drain pump is defective
Change the Drain pump
P.C.B ASS’Y is defective.
Change the P.C.B ASS’Y.
YES
THE WASHER
DOES NOT
DRAIN.
Is the foreign matter
accumulated inside
the pump housing?
YES
NO
Is the output voltage of
the drain pump normal?
YES
NO
TROUBLE SHOOTING
27
Concerning Spinning
PROBLEM
CHECK POINT
CAUSE
SOLUTION
YES
Close the lid.
Is the lid open?
NO
Does the safety switch
operate normally?
NO
Safety switch is defective.
Change the safety
switch.
NO
Improper connection of
the connector.
Connect the connector
properly.
P.C.B. ASS’Y is defective.
Change P.C.B ASS’Y.
Drain motor is defective.
Change the drain motor.
P.C.B ASS’Y is defective.
Change the P.C.B ASS’Y.
V-belt is defective.
Change the V-belt.
Motor is defective.
Change the motor.
Improper connection.
Connect the terminal correctly.
P.C.B ASS’Y is defective.
Change the P.C.B ASS’Y.
YES
Is the connector of
P.C.B ASS‘Y connected
properly?
YES
Does the pulsator rotate
while the tub does not
rotate?
NO
THE WASHER
DOES NOT
SPIN.
YES
Is the input
voltage of the drain
motor normal?
YES
NO
YES
Is the V-belt worn out?
NO
Is the input voltage of
motor normal?
YES
NO
Is the connection condition of capacitor terminal good?
NO
YES
28
TROUBLE SHOOTING
Concerning Operation
PROBLEM
CHECK POINT
CAUSE
SOLUTION
NO
Is the plug connect-ed
to electric outlet?
Connect the plug.
YES
YES
THE INDICATOR
LAMPS(L.E.D)
DO NOT LIGHT
UP WHEN THE
POWER BUTTON IS
PRESSED.
Is Fuse opended?
Change Fuse
NO
Is the condition of
power button good?
NO
MOTOR
ROTATES
WHEN
START/HOLD
BUTTON IS
NOT
PRESSED.
ABNORMAL
NOISE DURING WASH
PROCESS.
Change P.C.B ASS’Y.
Improper connection of
the connector.
Connect the connector
properly.
P.C.B. ASS’Y is defective.
Change P.C.B ASS’Y.
YES
Is the connector of the
P.C.B. ASS’Y connected properly?
NO
YES
PROGRESS
LAMPS(LED)
DO NOT LIGHT
UP.
Power button is defective
Do you press
START/HOLD button?
NO
YES
Does the pressure switch
operate normally?
NO
P.C.B ASS’Y is defective.
Replace P.C.B ASS’Y.
Pressure switch is defective.
Change the pressure
switch.
Abnormal
YES
Check the output voltage
of P.C.B ASS’Y
Is the strange noise generated when the pulsator
rotates in TEST MODE
of P.C.B ASS’Y?
Press START/HOLD button.
YES
P.C.B ASS’Y is defective
Change P.C.B ASS’Y.
There is foreign matter
between pulsator and
tub.
Remove the foreign matter.
V-belt is defective.
Change the V-belt.
NO
YES
Is the V-belt worn out?
TROUBLE SHOOTING
29
9. PRESENTATION OF THE P.C.B ASS’Y
Concerning Error Message
MESSAGE
CAUSE
Improper installation of drain hose.
Install drain hose properly.
The drain hose is blocked up by foreign
matter.
Remove foreign matter from drain hose.
Drain motor is inferior.
Change drain motor.
The water tap is closed.
Open the water tap.
The water inlet filter clogged.
Clean the water inlet filter.
It passes over the 30 minutes, yet it doesn’t
come to assigned water level.
Check whether or not is comes to the
assigned water level.
Wash loads get uneven during spin.
Re-set wash loads evenly.
Poor installation of the unit.
Proper installation.
The lid is opened.
Close the lid.
The safety switch is inferior.
Change the safety switch.
The load sensing is inferior. After the load
sensing operates about 7 seconds, the
message is displayed during 1 second and
water level is always fixed ‘high’.
The water level sensing is inferior.
30
PCB ASS’Y
SOLUTION
Change the P.C.B. ASS’Y.
Check the water level sensor and the
contact part of the connector.
APPENDIX
§ è Wiring Diagram [non-pump]
WIRING DIAGRAM
31
§ è [Non-Pump, Single Valve]
32
WIRING DIAGRAM
§ è [Pump]
WIRING DIAGRAM
33
§ è [pump, single valve]
34
WIRING DIAGRAM
§ è Parts Diagram
PARTS DIAGRAM
35
✔ Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
§§
è Parts List
NO.
PART CODE
SPECIFICATION
REMARK
PLATE T
3614521500
PP
A02
DOOR B AS
3611797600
ABS
OPTION :
A03
DOOR F AS
3611797700
ABS
TRANSPARENT
A04
DOOR B
3611797300
PP
OPTION :
A05
DOOR F
3611797400
PP
NOT TRANSPARENT
A06
SPRING PLATE LEVER
3615111800
SUS
A07
PLATE LEVER
3614521400
PP
A08
SPRING DOOR
3615112100
SUS D1.4
A09
PANEL B
3614233400
PP
A10
CAP WATER
-
PP
A11
CAP DRY
-
PP
A12
CONNECTOR HOSE
3619506600
PS
A13
PACKING
3614004100
SILICON
A14
PANEL B
3614233600
PP
OPTION : BACKWARD
3614233500
ABS
DWF-750/752/800/802
3614235610
ABS
DWF-753/755/803/805
3614235600
ABS
DWF-756/758/806/808
A15
PANEL F
OPTION :
UPWARD WATER VALVE
A16
CAP REAR
3610902600
CR
A17
NOZZLE DETERGENT
3618102600
PP
A18
CASE DETERGENT
3611130700
PP
A19
LEVER SAFETY S/W
3613701800
POM
A20
SPRING LEVER SAFETY
3615111700
SUS D1.0
A21
CLAMP
4507D08150
MFZN HOSE ID=7PIE
A22
SENSOR PRESSURE AS
3614801300
CDN-D6N
A23
SWITCH COVER AS
4507K44031
15A 220VAC 1006FD
3615403510
AC 110-130V/50,60Hz COLD
3615402010
AC 220V/60Hz COLD
3615403711
AC 220-240V/50Hz COLD
3615403530
AC 110-130V/50,60Hz COLD
3615402030
AC 220V/60Hz COLD
3615403630
AC 110-130V/50,60Hz HOT
3615402130
AC 220V/60Hz HOT
3615403831
AC 220-240V/50Hz HOT
3612787910
8A COLD NON-BUBBLE
3612787915
5A, COLD NON-BUBBLE
SINGLE VALVE
3612787920
8A COLD BUBBLE
DWF-750/752/800/802
3612787925
5A COLD BUBBLE
3612787950
8A COLD NON-BUBBLE
3612787955
5A, COLD NON-BUBBLE
3612789600
8A COLD BUBBLE
3612787965
5A COLD BUBBLE
3612787930
8A COLD/HOT BUBBLE
A24
A25
A26
36
PART NAME
A01
VALVE INLET
VALVE INLET
HARNESS AS
PARTS DIAGRAM
3612787935
5A COLD/HOT BUBBLE
3612787940
8A COLD/HOT NON-BUBBLE
BACKWARD
UPWARD
BACKWARD
SINGLE VALVE
DWF-753/755/803/805
DWF-756/758/806/808
DUAL VALVE, PUMP
✔ Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
NO.
A26
A27
A28
A29
A30
A31
PART NAME
HARNESS AS
CORD POWER AS
UNIT BUBBLE AS
UNIT CAPACITOR
PCB AS
UNIT FILTER AS
PART CODE
SPECIFICATION
REMARK
3612787945
5A COLD/HOT NON-BUBBLE
DUAL VALVE, PUMP
3612787970
8A COLD/HOT BUBBLE
3612787975
5A COLD/HOT BUBBLE
3612787980
8A COLD/HOT NON-BUBBLE
3612787985
5A COLD/HOT NON-BUBBLE
3611337000
F H05VV 3X0.75 1.9M WH
3611337100
RVCTFK 2X0.75 1.9M GY
JAPAN
3611337200
N LFC-3R 3X0.75 1.9M GY
AUSTRALIA
3611337300
F H05VV 3X0.75 1.9M WH
ITALY
3611337400
RW-300/500 3X0.75 1.9M
PR. CHINA
3611337500
VCTF 3X0.75 1.9M
INDIA
3611337600
U VCTF 3X0.75 1.9M GY
SOUTH KOREA
3611337700
P VCTF 3X0.75 1.9M WH
KUWAIT
3611337800
VCTF 3X0.75 1.9M WH
KUWAIT, OMAN
3611337900
H05VV-F 3X0.75 1.9M WH
MALAYSIA
3611338000
H05VV-F 3X0.75 1.9M
SINGAPORE
3611338100
A-VCTFK 2X0.75 1.9M GY
TAIWAN
3611338200
F H05VV 3X0.75 1.9M BK
EUROPEAN NATIONS
3611338300
C SJT 3X18AWG 1.9M GY
PANAMA, USA
3611338400
H05VV-F 3X0.75 1.9M GY
ARGENTINA
3611338500
H05VV-F 3X0.75 1.9M GY
SOUTH AFRICA
OMAN
DUAL VALVE
CHILE
3611338600
P VCTF 3X0.75 1.9M WH
3618946301
AC220-240V L=750 PAD
3618906401
AC110-130V L=750 PAD
3618911600
8.4µF 400VAC CAN-TYPE
AC220-230V/50,60Hz
3618911900
30µF 200VAC CAN-TYPE
AC120-127V/60Hz
3618912000
33.6µF 200VAC CAN-TYPE
AC110V/60Hz
3618959700
7.5µF 400VAC CAN-TYPE
AC240V/50Hz
PRPSSWU602
802WT(T8-V1F)
PRPSSWU603
752MN(T8-V2)
PRPSSWU701
750WTP(T8-V1)
PRPSSWU702
800WMP(T8-V2)
PRPSSWU704
750MNP(T8-V2F)
PRPSSWU703
800WMP(T8-V2F, AUSTRAL IA)
PRPSSWU900
803MNP(T8-V2F)
PRPSSWU901
803MTC(T8-V1F)
PRPSSWU902
803MTP(T8-V1)
PRPSSWU903
803MNP(T8-V2)
PRPSSWU904
803MNP(T8-V2)
PRPSSWU905
803MNP(T8-V2, AUSTRALIA)
PRPSSWU800
806MNP(T10-V2)
PRPSSWU801
806MTC(T10-V1)
PRPSSWU802
806MNC(T10-V2)
PRPSSWU803
806MTP(T10-V1)
3618961000
FILTER + COIL
3618961010
FILTER + COIL, THERMAL TUBE
OPTION
DWF-750/752/800/802
DWF-753/755/803/805
DWF-756/758/806/808
OPTION
PARTS DIAGRAM
37
38
PARTS DIAGRAM
✔ Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
§§
è Parts List
NO.
PART NAME
PART CODE
SPECIFICATION
REMARK
B01
CABINET
3610809600
PAINTED STEEL SHEET 0.6T
B02
HANDLE CABINET
3612603300
PP
B03
PLATE UPPER
3614521600
PP
B04
BASE U
3610389100
PP LOW H=45
DWF-750/753/756/800/803/806
3610389200
PP HIGH H=135
DWF-752/755/758/802/805/808
B05
LEG ADJUST AS
3617702100
DWF-1089W2
B06
LEG FIX
3612100310
SBR
B07
HOLDER SUPPORT F
3613044600
FRPP
FRONT
B08
HOLDER SUPPORT B
3613044500
FRPP
REAR
B09
COVER BACK
3611413600
SPG 0.4T
B10
COVER UNDER
3611418500
PP
OPTION
B11
HARNESS OUTER
3610068700
50/0.18GREEN ST710489-2
2-WIRE POWER CORD
B12
HOSE DRAIN O AS
3613213500
LDPE L=950
NON-PUMP
B13
HOSE DRAIN O AS
3613218800
LDPE/EVA L=1600 PUMP
B14
GUIDE DRAIN HOSE
3612502300
PP
B15
FILTER AS
3611901530
DWF-800WNP E-TYPE
ASKOLL PUMP
3611904900
DWF-5590DPNE E-TYPE
DMI PUMP
3611419100
VO ASKOLL 220-240V/50Hz
3611419200
HB 110V, 220V/60Hz
3611405320
PP
3618958900
AC 220-240V/50Hz
3618959000
AC 220V/60Hz
3618959100
AC 110-127V/60Hz
3618957230
AC 220V/50Hz, L=1350, VSF
3618957200
AC 230~240V/50Hz, L=1350, VSF
3618957260
AC 220V/60Hz, L=1350
3618957300
AC 110~127V/60Hz, L=1350, VSF
3918957330
AC 110~127V/60Hz, DIW, L=1350
B16
B17
COVER PUMP
COVER PUMP
UNIT DRAIN PUMP
B18
UNIT DRAW PUMP
PUMP
ASKOLL PUMP
DMI PUMP
ASKOLL PUMP
DMI PUMP
PARTS DIAGRAM
39
40
PARTS DIAGRAM
✔ Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
§§
è Parts List
NO.
PART NAME
PART CODE
SPECIFICATION
C01
BALANCER AS
3616104700
DWF-6010
C02
TUB I
3618808500
SUS 0.5T
C03
TUB U
3618808601
PP
C04
GUIDE FILTER
3612507000
DWF-6010NP
C05
SPECIAL SCREW
3616003700
SUS 5.5X16
C06
PULSATOR AS
3719706700
DWF-800WNP
C07
BALANCER AS
3616104500
DWF-5510PN
C08
TUB I
3618808100
PP
C09
GUIDE FILTER
3612503900
PP
C10
PULSATOR AS
3619706600
DWF-750WTP
C11
FILTER AS
4505E82002
POLYESTER 90X120 INSERT
C12
SPECIAL SCREW
3616002901
SUS 304 NON-SILOCK
C13
SPECIAL NUT
4507D83080
SUS 304
C14
FLANGE TUB
3617201100
5KG 3-FOOT
C15
SPECIAL SCREW
3616007000
SCM24H, 6.5X24
REMARK
STAINLESS STEEL
PLASTIC
PARTS DIAGRAM
41
42
PARTS DIAGRAM
✔ Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr)
§§
è Parts List
NO.
PART NAME
PART CODE
SPECIFICATION
D01
COVER TUB O
3611414600
PP
D02
TUB O
3618817600
PP
D03
SUSPENSION AS F
3619804200
FRONT
D04
SUSPENSION AS B
3619804300
REAR
D05
VALVE DRAIN AS
3615408500
DWF-750M
D06
HOSE DRAIN I AS
3613227000
LDPE+EVA DWF-752MN
D07
HOSE DRAIN I AS
3613226900
LDPE+EVA DWF-800WNP
D08
CLAMP
4507D08150
MFZN HOSE ID=7PIE
D09
HOSE
4500D08210
ID=4.0
D10
CLAMP
4507D08150
MFZN HOSE ID=7PIE
D11
HOSE
4500D08210
ID=4.0
D12
BASE
3610302900
SECEN 1.2T
D13
SPECIAL SCREW
3616007000
SCM24H 6.5X24
D14
MOTOR SYNCHRONOUS
3966010410
220-240V/50,60Hz ST=23
3966320830
110-127V/60Hz ST=23
D15
GEAR MECHANISM
3617307310
GM-0600-KJ4P0
D16
BOLT HEX
7640802011
6B-1 8X20 SW MFZN
D17
PROTECTOR GEAR
3618303600
SGCC 1.2T
D18
SPECIAL WASHER
4505E34030
PP
3618959900
110-127V/60Hz W1D30CC004
3618960100
220V/60Hz W1D0UC004
3608960200
220-240V/50Hz 30VC004
7650802511
6B-1 8X25 HS MFZN
3618401420
DP=53.0 50Hz ALDC
3618402800
DP=48.5 60Hz ALDC
3618431900
DP=53.0 50Hz PRESS
3618432000
DP=48.5 60Hz PRESS
D19
UNIT MOTOR AS
D20
BOLT HEX
D21
PULLEY MOTOR AS
REMARK
NON-PUMP
PUMP
OPTION : PUMP
OPTION : BUBBLE
OPTION
D22
PULLEY MOTOR AS
D23
WASHER SPRING
7401008011
SW-8 MFZN
D24
NUT HEX
7392800011
M8XP1.25 MFZN
D25
BELT V
4507D34020
M20
50Hz
4507B34020
M19.5
60Hz
D26
HARNESS EARTH INNER
3612757010
L=560
PARTS DIAGRAM
43
§ è Circuit Diagram
1. DWF-750/752/803/805/753/755/803/805
44
CIRCUIT DIAGRAM
2. DWF-756/758/806/808
45
DAEWOO ELECTRONICS CO., LTD.
686, AHYEON-DONG MAPO-GU SEOUL, KOREA
C.P.O. BOX 8003 SEOUL, KOREA
TELEX: DWELEC K28177-8
CABLE: “DAEWOOELEC”
FAX: 82-2-360-7877
TEL: 82-2-360-7114
http://www.dwe.co.kr
S/M NO. : WF750SE001
PRINTED DATE: JULY.2000
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