Samsung WF7450SAV, WF7450NAW Service manual

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Page 1

WASHING MACHINE DRUM TYPE

BASIC : WF-F1061

MODEL NAME : WF7450SAV

WF7450NAW

MODEL CODE : WF7450SAV/YLP

WF7450SAV/YLR

WF7450SAV/YLW

WF7450NAW/YLW

WF7450NAW/YLR

SERVICE

PRODUCT IMAGE THE FEATURE OF PRODUCT

1. QUICK WASH

2. DELAY START

3. HAND WASH

4. SILVER NANO(OPTION)

5. CERAMIC HEATER(OPTION)

Manual

Refer to the service manual in the itself (http://itself.sec.samsung.co.kr/) for the more information.

Page 2

CONTENTS

1. PRECAUTIONS

1-1. SAFE PRECAUTIONS .......................................................................................................................................... 1

1-2. PRECAUTIONS UPON INSTALLATION ................................................................................................................ 2

2. THE FEATURE OF PRODUCT

2-1. SPECIFICATIONS .................................................................................................................................................. 5

2-2. OVERVIEW OF THE WASHING MACHINE .......................................................................................................... 6

2-3. THE COMPARATIVE SPECIFICATIONS OF PRODUCT ...................................................................................... 7

2-4. ACCESSORY AND OPTION SPECIFICATIONS ................................................................................................... 8

3. PRODUCT SPECIFICATIONS

3-1. OVERVIEW OF THE CONTROL PANEL ............................................................................................................... 9

3-2. PROGRAMME CHART ........................................................................................................................................ 10

3-3. MAIN FUNCTION .................................................................................................................................................12

3-4. TECHNICAL POINT ............................................................................................................................................. 15

3-5. DESIGNATION OF MAIN COMPONENTS .......................................................................................................... 18

4. ALIGNMENT AND ADJUSTMENTS

4-1. GENERAL ERROR FUNCTION ........................................................................................................................... 20

4-2. TEST MODE ......................................................................................................................................................... 22

5. ASSEMBLY AND DISASSEMBLY

5-1. TOOLS FOR DISASSEMBLY AND ASSEMBLY ..................................................................................................23

5-2. ASSEMBLY AND DISASSEMBLY ........................................................................................................................ 24

6. TROUBLE DIAGNOSIS

6-1. TROUBLE DIAGNOSIS ........................................................................................................................................ 33

6-2. PROBLEM CHECKING AND METHOD OF PCB ................................................................................................. 35

6-3. DETAILED DIAGNOSIS .......................................................................................................................................41

7. EXPLODED VIEWS AND PARTS LIST

7-1. EXPLODED VIEWS OF TOP(FRONT) ................................................................................................................ 42

7-2. EXPLODED VIEWS OF TUB ............................................................................................................................... 43

7-3. EXPLODED VIEWS OF CASE ............................................................................................................................ 44

7-4. PARTS LIST .........................................................................................................................................................45

Page 3

CONTENTS

8. BLOCK DIAGRAM ...................................................................................................................................48

9. WIRING DIAGRAM

9-1. PCB ASSY’ LAYOUT ............................................................................................................................................ 49

9-2.CONNECTOR & RELAY TERMINALS DESCRIPTION (MAIN PCB) .................................................................... 50

9-3.CONNECTOR & RELAY TERMINALS DESCRIPTION (AG-KIT PBA OPTION) ................................................. 51

10. SCHEMATIC-DIAGRAM

10-1. ROLD (WF7450SAV) .......................................................................................................................................... 52

11. PCB CIRCUIT DIAGRAM

11-1. PCB CIRCUIT DIAGRAM ................................................................................................................................... 53

11-2. PCB CIRCUIT DIAGRAM (AG-KIT OPTION) .................................................................................................... 54

12. CIRCUIT DESCRIPTION

12-1. OVERALL SYSTEM ........................................................................................................................................... 55

12-2. AC INPUT & POWER CIRCUIT ......................................................................................................................... 56

12-3. DRIVING SYSTEM CIRCUIT ............................................................................................................................ 57

12-4. MOTOR CIRCUIT .............................................................................................................................................. 58

12-5. SENSOR DETECTION CIRCUIT ...................................................................................................................... 59

12-6. MOTOR TACHO INPUT SYSTEM .................................................................................................................... 60

12-7. SILVER NANO SYSTEM (OPTION) .................................................................................................................. 61

13. REFERENCE INFORMATION

13-1. MODEL NAME ................................................................................................................................................... 62

13-2. TERMINOLOGY ................................................................................................................................................. 63

13-3. FABRIC CARE CHART ......................................................................................................................................64

13-4. ELECTRICAL WARNINGS ................................................................................................................................. 64

13-5. Q & A ..................................................................................................................................................................65

Page 4

1. Precautions

1-1. Safe Precautions

1. Do not allow the customer to repair the product. It may cause personal injury or product damage when the unit is serviced by unqualiﬁ ed personnel.

2. Disconnect power to the appliance before servicing. Be aware of the possibilities of an electric shock.

3. Do not use multi-plug. Power outlet may be overloaded causing the socket to overheat.

4. Check for any damage on power plug or power outlet. Replace it immediately if it has problem. (It may cause an electric shock or ﬁ re)

5. Make sure to earth the product. May cause electric shock.

6. Do not clean the product with water. May cause electric shock / ﬁ re or shorten product life.

7. The wiring harness should be free from moisture and connected properly during serving. It should be proof against any external force.

8. Remove any dust or dirt in the product, wiring section and connections during servicing. Protect against possibilities of ﬁ re due to tracking etc.

9. Check for any water trace on electrical parts, harness, etc. Replace the parts or wipe dry the water.

10.Check the assembled status of the parts after servicing. Check if the product is assembled in the same status as before servicing.

11.Be sure not to pull on the power cord but to unplug it by holding the plug. Beware of possibility of electric shock or ﬁ re when the power cord is damaged.

12.Unplug the power plug from the outlet when the washing machine is not used. Beware of possibility of electric shock or ﬁ re while lightening.

13.Do not use or put ﬂ ammable materials (including gasoline, alcohol, thinner etc) around the washing machine. Flammable materials may spark an explosion or ﬁ re.

14.Do not put a water containing bowl or wet laundry on the washing machine. It may cause an electric shock or ﬁ re, or shorten the product life when its water penetrates into the washing machine.

15.Do not install the washing machine in a place where it is exposed to snow or rain etc. It may cause an electric shock or ﬁ re and shorten the product life.

16.Do not press control buttons with pointed objects such as pins, needles, etc. It may cause an electric shock or other problems.

17.Check the washing machine is leveled horizontally on the ﬂ oor and is installed properly. Vibration may shorten the product life.

18.Make sure to use connectors when connecting wires. If wires are connected without connectors, it may cause a tracking ﬁ re.

19.When the washing machine is to be laid down for servicing, put a pad on the ﬂ oor and lay the product on its side slowly. If the wash machine is laid on its front, internal components may be damaged by the tub.

Page 5

1-2. Precautions upon Installation

■ How to Remove Shipping Bolts

■ Precautions before Installation

1. Remove the screws by using the supplied spanner.

3. Fill the holes with the supplied plastic caps.

2. Remove the shipping bolts from the back of the unit.

4. Keep the shipping bolts and screws for future use.

The unit is quite heavy. So, make sure to have 2 or more personnel move it.

Install the unit at a place with a wall outlet easily accessible.

Make sure that the unit stands on a ﬁ rm and leveled ﬂ oor.

Keep the unit away from places in which it is freezing, especially in winter.

keep it away from direct sunlight or high humidity, and install it in a place with good ventilation.

Keep the unit away from heat appliances such as a heater.

Page 6

■ Grounding

Ć Make sure to ground the unit to prevent electric leak- age or shock.

Ć With a grounded receptacle It does not need an additional grounding.

■ Water Drainage

Ć Hook the drain hose over the Wash Basin or Laundry Tub or plug the end of the drain hose into the Standpipe.

- Hook the drain hose over the Wash Basin or Laundry Tub or plug the end of the drain hose into the Standpipe.

- The outlet end of the drain hose must be at least 60-90 cm above the base of the machine.

Ć Seal the drain pipe connections.

- If not, it may cause water leakage.

Ć Prevent water from siphoning away.

- If the end of the drain hose is put in water, it could siphon away water during washing. So, make sure that the end of the drain hose is not put in water.

 Note: Caution must always be exercised to avoid collapsing or damaging the drain hose. For best performance the drain hose should not be restricted in any way, through elbows, couplings or excessive lengths.

Page 7

utionon

■ How to Level the Unit

1.Select an installation place. Install the unit with 10cm or more clearance from its surrounding walls.

2.Check if the unit is leveled. If the unit wabbles, adjust the leveling legs.

3.Adjust the leveling legs.

The 4 leveling legs should touch the

ﬂ oor all together.

After adjusting the leveling bolt, tighten the

lock nut by turning it clockwise.

When the unit is not leveled

Lift up the unit a little bit and adjust the shortest. Turn the leveling bolt counter clockwise as shown in the picture above (The leveling leg gets longer.)

Lock Nut

Leveling Bolt

Spanner

Flat Head Screwdriver

uti

Tighten the lock nut after

the leveling. If not, it

could generate vibrations &

noises.

Page 8

2. THE FEATURE OF PRODUCT

2-1. SPECIFICATIONS

WASH TYPE FRONT LOADING TYPE

MODEL NAME WF7450SAV,WF7450NAW

DIMENSION

WATER PRESSURE 50 kPa ~ 800 kPa

WEIGHT

WASH and SPIN CAPACITY 4.5 kg (DRY LAUNDRY)

WASHING AND HEATING

SPIN

PUMPING 34 W

WATER CONSUMPTION 43ℓ(STANDARD COURSE)

SPIN REVOLUTION

PACKAGE Wt

MODEL WF7450SAV,WF7450NAW rpm 1000 PAPER 2.5kg PLASTIC 1.0kg

PANEL CONTROL

NET W 598mm X D 400mm X H 844mm

GROSS W 668mm X D 530mm X H 890mm

NET 55 kg

GROSS 58 kg

220V 1900W

240V 2200W MODEL WF7450SAV,WF7450NAW 220~240V 230W

COVER TOP

DRAWER

DOOR GLASS

BASE COVER

DEBRIS FILTER

DRAIN HOSE

POWER PLUG

ADJUSTABLE LEG

EMERGENCY DRAIN TUB

Page 9

2-2. OVERVIEW OF THE WASHING MACHINE

CONTROL PANEL

SSY-DOOR

DRAWER

WATER SUPPLY VALVE

AG-KIT PCB

SENSOR PRESSURE

TUB

ADJUSTABLE LEG

DRAIN HOSE

ASSY PUMP

POWER CORD

BUFFER SPRING

WEIGHT-BALANCE

PULLEY

BELT

MOTOR

SHOCK ABSORBER

Page 10

2-3. THE COMPARATIVE SPECIFICATIONS OF PRODUCT

THE COMPARATIVE SPECIFICATIONS OF PRODUCT˄ϔ˅

Item 4.5kg Old (4.5kg)

Model Name WF7450SAV WF-F1061

Capacity (Washing) 4.5kg 4.5kg

Drum Capacity 43ℓ 43ℓ

Washing Motor HXGP2I HXGP2I

Supply/Drain All temperatures /Drain pump Cold /Drain pump

Balancer Weight Weight

SIZE(W*D*H) 598*400*844 598*400*844

THE COMPARATIVE SPECIFICATIONS OF PRODUCT˄Ѡ˅

4.5kg

Model Name

Water-level Control O O

Add Laundry X X

Exterior Replacement

Part Name

WF7450SAV WF7450NAW

Function

Speciﬁ cations

Design

Cover Door

FRAME FRONT

SILVER WHITE

Page 11

2-4. ACCESSORY AND OPTION SPECIFICATIONS

ITEM DESCRIPTION CODE-NO. Q’TY REMARK

HOSE-WATER(C) DC62-10289C 1

BOLT-SPANER DC60-40146A 1

CAP-FIXER DC61-10688A 5

CAP-FIXER DC67-00208A 1

HOSE-HANGER DC62-10278A 1

Page 12

3. PRODUCT SPECIFICATIONS

3-1. OVERVIEW OF THE CONTROL PANEL

ķǂǂǂǂǂǂǂǂǂĸǂĹǂĺǂĻǂǂļǂĽǂľǂǂĿ

1. Detergent dispenser

2. Display panel Displays wash cycle and error messages. During execution of the program, the program indicator blinks.

3. Program selection button Press the button repeatedly to select one of the eight available wash button. Cotton Synthetics Wool Rinse+Spin Baby cotton Handwash Quickwash Spin.

4. Temperature selection button Press the button repeatedly to cycle through the available water temperature options. (Cold water 30 C 40 C 60 C 95 C). When pressing this button during washing, you can see the selected temperature in the diaplay panel.

5. Spin selection button Press the button repeatedly to cycle through the available water temperature options.

WF7450SAV,WF7450NAW Rinse hold,No spin,400,800,1000rpm

No spin The laundry remains in the drum without being spin after the ﬁ nal drain. Rinse hold The laundry remains soaking in the ﬁ nal rinse water. Before the laundry can be unloaded, either “Drain” or the “Spin” program must be run.

6. Function selection button Press the button repeatedly to cycle through the available partial wash options. Prewash Rinse+ Rinse Hold Ag+.

7. Delay start selection button Press the button repeatedly to rotate between the retarded start options avaiable. (from 3 hours to 24 hours, in 1 hour increments.)

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3-1. OVERVIEW OF THE CONTROL PANEL

8. Start/Pause selection button Press to pause and restart programs. Press the start/pause button before adding laundry. This can only be selected within 5 minutes of the start.

9. On/Off button Press once to turn the washing machine on, press again to turn the washing machine off. If the washing machine power is left on for longer than 10 minutes without any buttons being touched, The power automatically turns off.

What is the “Child Lock” function

-If you press the “Child Lock” button (rinse+spin) longer than 2 sec during operation, this function is selected.

-If once this function is selected, no change can be done until the end of laundry.

-Press the “Child Lock” button (rinse+spin) longer than 2 sec to cancel the function. Note: Check out the Child Lock button ﬁ rst when no button is activate while the washing machine is working.

Page 14

3-2. PROGRAMME CHART

PROGRAM

Cotton

Colour Syn-

thetics Wool Hand-

wash Quick

PROGRAM Cotton Colour

Synthetics

Wool Handwash Quick

Max load

(kg)

WF7602SAV

WF7600NAW

6.0 5.2 4.5 95 1200 1000

6.0 5.2 4.5 60 1200 1000

3.0 2.5 2.5 60 800 800

2.0 1.5 1.5 40 400 400 - √

3.0 2.0 2.0 60 1200 1000 - √

WF7520SAV

Averagely or lightly soiled cottons, bed linen, table linen, underwear, towels, shirts, etc. Averagely or lightly soiled cottons, bed linen, table linen, underwear, towels, shirts, etc. Averagely or lightly soiled blouses, shirts, etc., Made of polyester(diolen, trevira), polyamide (perlon, nylon)

or other similar blends. Only machine washable woolens with pure new wool label. Very light wash couse like hand wash. Lightly solied cottons or linen blouses, shirts, dark coloured terry cloth, colourd linen articles, jeans, etc.

WF7450SAV

WF7450NAW

Max

temp

(ć)

Spin Speed

(MAX)rpm

WF7602SAV

Type of WASH

WF7600NAW

WF7520SAV WF7450SAV

WF7450NAW

wash

Detergent

And additives

Pre

wash

γ γ

ender

√

De-

soft-

lay

start

γγ γγ

γγ

γγ γγ

γγ

Cycle

Time (min)

126

1. Programme with prewash lasts approx. 15 minutes longer.

2. The programme duration data has been measured under the conditions speciﬁ ed in Standard IEC 456.

3. Consumption in individual homes may differ from the values given in the table due to variations in the pressure and temperature of the water supply, the load and the type of laundry.

Page 15

3-3. MAIN FUNCTION

1) Auto power S/W off function

● After power on, the auto power S/W off function automatically switches power off for you if you do not

press selection button for 10 minutes.

● After selecting the function, the auto power S/W off function automatically switches power off for you if

you do not press start/pause button for 10 minutes.

● until 5 minutes past, After ﬁ nishing the last function, the auto power S/W off function automatically

switches power off for you if you do not re-select the course button or manual button.

2) Door open function

● Door just can be opened at water level 24.05 KHz over, water temperature 55ć below, motor off, if

power is off door is not opened (only auto-door model).

● If door is open during the operating, all operating is halted, and door error message will be displayed

(2-digit panel displays “dE” 4-digit panel displays “door”) and error melody will coming out .

● Door open error can be cleared by closing the door. the operating keeps going on.

3) Rinse hold function

● If rinse hold function selected, the operating is ﬁ nished , the machine do not drain the water after last

rinse.

4) No spin function

● If no spin function selected, the operating is ﬁ nished after last rinse.

5) Drain function

● Drain function is over, after pumping out the water for 2 minutes , without motor rotating.

6) Pre-washing function

● Pre-washing function can be selected ,when you choice the following mode; cotton, coloreds, syn.

thetics, delicates, baby cotton, baby coloreds, baby delicates, baby stains.

● Water level/reverse time is the same with the selected course.

● Pre-washing takes about 16 minutes.

7) Power-out compensation function

● If power is out on selected process, the process before power out is stored to EEPROM, once power is

back the process before power out continues.



● When power is back, washing process starts from the process at the point of the power out, rinse/drain process starts from the initial process.

POWER-OUT COMPENSATION FUNCTION PROCESS

START WASHING

POWER OUT

SAVE DATA to EEPROM

POWER BACK

MICOM RESTORE

RINSE/DRAIN

START

SAVE DATA

to EEPROM

RINSE/DRAIN

PROCESS

POWER OUT

POWER BACK

MICOM RESTORE

FINISH

Page 16

8) Fuzzy washing function (weight-sensing)

● After ﬁ nishing initial water supply, when the fall of the water level needs supplementary water supply, Sensing function perceives the weight with the supplementary water supply numbers and starts to

work. Under the course of Cotton, or Coloureds, if the supplementary water supply numbers become over 2 times the function is going at default condition ( high water level ), if 1 time that is going at middle level, if 0 below low water level, heating hours and rinse hours depend on the above data.

ECO PRE mode is selected, the process going on at default condition.

Washing hours

Cotton Coloureds

Rinse water level

High Default Default Default

Middle Default-20 min Default-10min 23.80KHZ

Low Default-30 min Default-15min 24.10KHZ

ĆAfter sensing weight, above hours is decreased from above default hours

9) Bubble - detecting function At the each condition of washing&dehydrating , rinse&dehydrating , hydrating, bubble -detecting function works, this function works 5times normally, if the function detects bubbles at 6 times , the bubble-detecting function

stops and go on to the next process.

● The bubble-detecting function during washing & dehydrating to rinse & dehydrating after 2 times instant dehydrating and before main dehydrating, if the water level is under 24.50KHZ, Bubble → Detecting function thinks there are bubbles and add the bubbles-removing rinse, needing hours are above hours and 8 Min 40 sec. → The bubble-detecting function during single hydrating process after 2 times instant dehydrating and before main dehydrating , if the water level is 24.50KHZ below or during main dehydrating, water level data is 24.50KHZ below Bubble-detecting function thinks there are bubbles and add the bubbles-removing rinse 1 times, needing hours are above hours and 5 min 50 sec.

Bubble-detecting function operating process

18 sec

laundry scattering

draining &reverse

50 sec

unbalance

detecting range

500rpm

220rpm

bubble detection

(default water level 24.50KHZ below)

Page 17

10) Unbalance detecting & laundry balance positioning system ķ Just before the hydrating process and just after reversal rotation for balancing laundry position, this function is carried out ĸThe initial 6 sec is the period of reversal rotation for balancing laundry position , Drum rotates 50rpm for initial 6 sec Ĺ Next 12 sec, the rotation increases the speed from 50 rpm to 95 rpm slowly ĺ During the next 8 sec, drum rotates at the speed of 95 rpm, the sensor decides the degree of laundry unbalance with TACHO data which is attached to motor Ļ If the degree of unbalanced laundry is over 6 times to default value, laundry balancing system carryies out feed back process 3 times.

Unbalance detecting & laundry balance positioning system

410rpm

500rpm

220rpm

9sec

laundry scattering

unbalance

detecting range

95rpm

11) R.P.M control The rotating motor enables the magnetics( i.e generator) to generate magnetic ﬂ ux in proportion to

r.p.m, magnetic ﬂ ux induced by coil sensor in the opposite side produces the wave like the ﬁ gure below to dΦ/dt and via rectangular wave generating circuit, the waves reaches MICOM and micom controls r.p.m with the pulse, count and cycle inputted by program.

V (VOLT)

T (HOUR)

Page 18

3-4. TECHNICAL POINT

1) Motor on/off time at each course

unit:sec

Course

Cotton 13 4 13 4 50 Coloureds 12 8 12 8 50 Synthetics 10 5 10 5 50 Delicates 5 10 5 10 50 Wool 2 48 2 48 50 Handwash 258258 50 Quick 22 4 22 4 50 Bed Linen 10 10 10 10 50 Heavy Soil 12 8 12 8 50 Baby Cotton 12 8 12 8 50 Daily Wash 12 8 12 8 50

Model

Cw Off Ccw Off

Washing

Motor r.p.m

2) Final dehydrating r.p.m at each course

Model

Course Cotton 1000

Colour 1000

Synthetics 800

Wool 400

Handwash 400

Quick 1000

Ć You can change the r.p.m to the above a table by use spin button under no spin situation.

WF7450SAV,WF7450NAW

unit:rpm

Page 19

3) The water supply control at each process cycle

Model

Process cycle Pre Washing Cold water 5L/min

Washing Cold water 10L/min + (Hot water 10L/min) Rinse Cold water 10L/min Final rinse Cold water 10L/min + Cold water 5L/min

WF7450SAV,WF7450NAW

4) The water level data at each course

Course

Cotton

Colour

Synthetics

Wool

Handwash

Quick

Model

Washing 23.80 24.30 24.10 Rinse 23.20 24.20 24.00 Washing 23.80 24.30 24.10 Rinse 23.20 24.20 24.00 Washing 23.00 24.00 23.70 Rinse 22.80 24.20 23.90 Washing 22.80 24.00 23.80 Rinse 22.30 23.80 23.35 Washing 22.80 24.00 23.80 Rinse 22.30 23.80 23.35 Washing 23.80 24.30 24.10 Rinse 23.20 24.20 24.00

Default water level

(kHz)

Supplementary water

START (kHz)

unit:Khz

Supplementary water

End (kHz)

Page 20

5) The other water level data

The water data unter each conditon 1st water supply (only preparation) 24.80 1st water supply level to washing tub Overﬂ ow error 21.00 The water supplied reach 2/3 of door Bubble

detectingatwashing/rinse/dehydrating Bubble detecting rinse water level 23.50 The water level which can detect bubbles Water level which can open door 24.80 over It is possible to open the door Water level which can drive heater 24.80 Safety water level of wash heater Water level which can reset the drain 24.80 The water level can be detected after 1st drain-

ĆIf water level is 15KHZ below or 30 KHZ above , Sensor-pressure is out of order so needs changing.

24.50 Bubble -detecting water level

ing

WF7450SAV,WF7450NAW

unit:Khz

Page 21

3-5. DESIGNATION OF MAIN COMPONENTS

3-5-1. Normal / Reverse Revolution of Motor and R. P. M. Control

Rotor

510

Stator coil

Rotor

Stator coil

CCW

(± 7%)

Resist

ancevalue

STATOR(5.1) STATOR(5.10) ROTOR(8.9) TACHO(3.4) PROTECTOR(6.7) “H”(mm) Code-No. Remark

2.07Ω 0.90Ω 2.35Ω 34.3Ω 0 30

Rated

value

123456

D E E P S

H G

I H

L D D

I M

R O T A T S

D E

WASHING MOTOR

220~240V/50Hz

789

R O T

)

(

R P

R O T O

STATOR

DC31-

00002H

WF7450SAV

WF7450NAW

3-5-2. Door safety Device

When Door is closed, door stay closed. if “set” is operated, power supplied to ,wires have solenoid or bimetal keep the door closed, and electronical power ﬂ ows between and make it operate.

DC64-00653A (WF7450SAV)

Page 22

3-5-3. Detergent tub and water supply value

A Detergent tub is composed of housing and 3 drawers . supplied water ﬂ ows into the 3 drawer-detergent tub by way of classiﬁ er at each washing process. three open drainage way with detergent and supplied water by way of connector located under the housing ﬂ ows into washing tub. the water supply valve is composed of a cold water valve(2way) and water ﬂ ow per Min in the valve is below.

Hot water

valve (1 way)

(Option)

water ﬂ ow(L/min) 10ℓ 12 ℓ 5 ℓ

resistance value 4.4 kΩ 4.2 kΩ 4.2 kΩ

power consumption AC 220~240V 50HZ

usable water pressure 0.5 ~ 8Kg /cm3

Cold water valve (2 way)

V1 V2

3-5-4. Shock absorber and buffer spring

This wash machine is equipped with 2 Shock absorbers with same capacity and with 2 buffer springs. 2 Shock absorber are placed under the tub and outside case , 2 buffer springs are placed on the right and left of the upper side of outside case. Shock absorber function: during wash, dehydration absorb the shock. buffer spring: buffering the vibration

device capacity of Shock absorber

Shock absorber 8±2 kg

Page 23

5. ASSEMBLY AND DISASSEMBLY

5-1. TOOLS FOR DISASSEMBLY AND ASSEMBLY

NO. TOOL

3 Vice pliers

4 Other(Driver, Nipper, Long nose) General tools for the after service. 5 JIG for the Tub 1 (Disassemble and Assemble)

Box driver

Double-ended

spanner

10mm 13mm 19mm

10, 13,19mm

Motor (1), Balance (5), 2 holes of each left and right of the shock absorber 1 Pulley hole

Replaceable for the box driver. Since the bolt runs idle when the box driver is used, use the box driver 17mm.

Tool to protect the idle and abrasion of the bolt for the box driver.

Page 24

5-2. ASSEMBLY AND DISASSEMBLY

Warning! To avoid risk of electrical shock, personal injury or death, disconnect the power to the washing machine

Part Name Descriptive Picture How To Do

ASS’Y-

COVER TOP

ķ Remove the two screws holding the Top Cover at the back of the unit.

ĸRemove the top-cover through pushing and pulling.

Ĺ Then, the Water (Pressure) Sensor, Noise Filter and Water Valve can be replaced.

sensor pressure

water valve

noise ﬁ lter

Page 25

Part Name Descriptive Picture How To Do

FRAME

FRONT

ķ Remove the Top Cover and the Assy Drawer.

ĸ Remove the one screw on the front of the control panel.

Ĺ Remove the two screws on the plate(u).

ĺRemove the control panel by disconnecting

the connector that connects PCB to the wire-harness.

Page 26

Part Name Descriptive Picture How To Do

FRAM

FRONT

Ļ Remove the assy-panel control.

ļInsert a ﬂ at head screwdriver into the gap

and pry down the Cover Front (Left) to separate it.

Ľ Remove the Wire Diaphragm from the Frame Front.

ľ8nseat the Diaphragm.

Page 27

Part Name Descriptive Picture How To Do

FRAM

FRONT

Ŀ Remove the 2 screws on the Frame Front.

ŀRemove the 3 screws on the bottom of

Frame Front.

Page 28

Part Name Descriptive Picture How To Do

BELT



Before removing the belt, should be opened the cover bottom.

ķ Remove the belt before the re-assembly. ĸEnsure the belt is placed on the center

of the motor pulley. <Belt assembly> Hang the belt on the motor pulley(ķ). Before placing it around the pulley(ĸ).

MOTOR

ķ Remove the wire housing from the motor. ĸ Remove the bolts holding the motor by

using the power screwdriver. Ĺ Remove the motor.

Page 29

Part Name Descriptive Picture How To Do

Water Supply

Valve

ķ Remove the ﬁ xing screws for the water supply valve.

ĸ Disconnect the valve wires. Ĺ Separate the water hoses.

Water Level

Sensor

ķRemove the top cover.

ĸRemove the ﬁ xing screws for the water

level sensor.

Ĺ Disconnect the water level sensor harness. ĺ Disconnect the hose pressure. Ļ Replace the water level sensor.

Page 30

Part Name Descriptive Picture How To Do

Door-Hinge

ķ Remove the ﬁ xing screws holding the Door-Glass.

ĸ Separate the glass.

Ĺ After removing the two screws holding the

Holder Glass, replace the Door Hinge.

ĺ After putting them back together, check if the screws holding the Door Hinge is fastened properly.

Drain Pump

ķ Insert the ﬂ at head screwdriver into the slot on the top of the Cover Filter and lever it down to separate it.

ĸ Unscrew the drain ﬁ lter by turning it counter clockwise. The water remaining inside could ﬂ ow out. So, put an empty bowl on the ﬂ oor to hold the water.

Page 31

Part Name Descriptive Picture How To Do

Ĺ Tilt the unit backward and take out the drain pump.

ĺ Disconnect the incoming water hose and the wire harness. (Caution: Check if the unit is plugged out. There is possibility of electric shock.)

Ļ Separate the Hose Filter Tub and the Drain Hose.

Ć CHECK POINT

1. Remove the Drain Filter and check if there are foreign substances (coin, buttons, etc)

blocking inside - If so, clear the inside.

2. Check if the wire harness is connected properly - If not, connect it properly.

3. If water leaks, check if the Clamp Hose and the Cap Drain are assembled tightly

- If not, assemble them tightly.

Remove the water remaining inside by turning the Filter counter clockwise.

Page 32

Part Name Descriptive Picture

How To Do

Door S/W

ķ Open the Door.

ĸ Remove the Spring Diaphragm and separate

the Diaphragm from the Frame Front.

- Insert the ﬂ at head screwdriver and pry up the spring to remove the Spring Diaphragm.

- The Diaphragm could get damaged when taking it out. So, unseat it in one direction slowly.

Ĺ Remove the screws holding the Door S/W.

ĺ Take out the Door S/W. Ļ Disconnect the wire connector. (Press the

hook to unlock the tab and plug it out.)

Page 33

Part Name Descriptive Picture

How To Do

Heater

ķ Remove the frame front.

ĸ Disconnect the connector housing.

Ĺ Remove the nut holding the heater and separate

the heater.

ĺ Take out the heater from the tub. (

ĆCaution: Be sure to insert the heater into the

Bracket in the tub. If not, it may cause a ﬁ re. And, make sure to have the packing seating on it’s place. fasten the nut with 5 kg/cm is fastened loosely, it may cause water leakage.)

.If the nut

Page 34

6. TROUBLE DIAGNOSIS

6-1. TROUBLE DIAGNOSIS

- As the micom wash machine is conﬁ gured of the complicate structure, there might be the service call. Below information is prepared for exact trouble diagnosis and suitable repair guide.

Caution for the Repair and Replacement

Please follow below instruction for the trouble diagnosis and parts replacement.

1) As some electronic components are damaged by the charged static electricity from the resin part of wash machine or the human body, prepare the human body earth or remove the poten

difference of the human body and wash machine by contacting the power supply plug when work contacting to PCB is executed.

2) Since AC 220~240V is applied to the triac T1 and T2 on P.C.B, the electric shock may occur by touching and be careful that the strong and weak electricity are mixed.

3) As the P.C.B assembly is designed for no trouble, do not replace the P.C.B assembly by the wrong diagnosis and follow the procedure of the trouble diagnosis when the micom is not op erated normally.

Page 35

No Item Cause and treatment

- Is the PCB connector connected well?

- Is the voltage normal?

- Is the power supply plug connected well?

1 The power is not supplied

2 The water is not supplied.

- Is the noise ﬁ lter connected well?

- Is the secondary output of the power supply transformation normal?

- Is the fuse disconnected? (option)

• If above points are not found, the PCB assembly is out of order. Replace it.

- Is the knob open?

- Did you push START/PAUSE button after selecting the course?

- Is the water supply valve connected well?

- Is the winding of the water supply valve continuous?

- Is the connection and operation of the pressure switch normal?

• If above points are not found, the PCB assembly is out of order. Replace it.

The wash does not start though the water supply is

stopped.

The drum does not rotate

during washing.

The drum rotates by one direction during washing.

(The drum rotates to one direction for SPIN.)

6 Drainage problem.

Dehydration problem.

8 Abnormal noise during SPIN.

- Is the connection and operation of the pressure switch normal?

- Is the pressure switch hose damaged so that the air is leaked?

- Is the pressure switch hose bent?

- Check the operation of the water level switch.

• If above points are not found, the PCB assembly is out of order. Replace it.

- Is the belt connected well?

- Is the winding of the motor continuous? (Rotor winding, stator winding, generator)

- Is the motor protector normal?

• If above points are not found, the PCB assembly is out of order. Replace it.

- The PCB assembly is out of order. Replace it. (Inversion relay open trouble)

- Is the drainage hose bent?

- Is the winding of the drainage pump continuous?

- Is the drain ﬁ lter clogged by the waste?

• If above points are not found, the PCB assembly is out of order. Replace it.

- The unbalance is detected.

- Put in the laundry uniformly and start again.

- Is the pulley nut loosen?

- Is the transport safety device removed?

- Is the product installed on the level and stable place? (Little noise may be generated during the high-speed SPIN.)

Leak breaker or current/leak

breaker is down during washing.

10 The heater is not executed

Do not open the door

- When the leak breaker is down, check and make the earth of the outlet.

- When the current is down, the current is leaked. <Is the breaker down when the leak/current breaker is combined?>

- Check the rated capacity of the current and leak breaker. The current breaker may be down due to the lack of the current when the wash machine and other apparatus are used. In this case, execute the cold water wash to check whether the current capacity is lack.

- Is the wash heater terminal unplugged.

- Is the wash heater normal.

- If above points are not found,the PCB assembly is out of order. Replace it.

- Disconnect the power supply.

- Remove the water from the washing machine.

- Use a screwdriver to the pop on the plastic base cover,set it aside.

- Locate the orange plastic tub and pull forward to open the door.

Page 36

6-2. PROBLEM CHECKING AND METHOD OF PCB

6-2-1. The Part Of Power Source

NO Power On

YES

The Voltage

BetweeneandfIs

DC 300V?

YES

Check The DIODE(D18~D21)

The Voltage Betweenaandbis DC 12V?

YES

The Voltage

Between d and b is

YES

DC 5V

Check LVT1

Exchange IC4(7805)And Check The condenser(CE4)

And IC3

¤—

Page 37

6-2-2. Reset Part

The Value Of

Measurement Result

Between Micom 8 And

Gnd Is 5V?

Check IC7

6-2-3. Interrupt Part

YES

Check The Power Source

Check The Curve

Output Of

Check The Micom

Number 9?

Check The Part Of

Oscillator

¤˝

Check PC2

Check TR2,R32

Page 38

6-2-4. Checking The Part Of An Oscillator

When The Micom 2,3

Check, The Value Is

16Mhz?

YES

Exchange Micom

Check Resonator R46

6-2-5. Check The Part Of Buzzer

Part is DC12V ?

YES

Exchange BZ1,

Check TR1,R59, Micom

Check The Part Of Power Source

Page 39

6-2-6. Driving Part Checking

ƹ Conﬁ rm The Output Of DC5V, When The Every Part Of Micom Number Check, According To Some Problem and Condition. ex) When The Drain Is Not Operating But Pump Motor Is Operating, Check The Voltage Of Micom is 5V.

Micom Number 31 Is

5 Voltage?

YES

The Part Of a is

0 Voltage?

YES

Check R47, TRIAC4

Micom Bad

Check The IC6

KID65003AP

¤˝

Ć Check The Micom 18th In The Above Method When The Cold Water Is Bad

Page 40

6-2-7. Conﬁ rm The Driving Part Of Motor

Motor Is Not Spinning

Motor Is Not Turning

Right And Left

Check The Tacho Part

YES

Check BD1, TRIAC1

Check RELAY3

Page 41

6-2-8. Checking The Tacho Part

Have The Motor Turn In Hand

Is The Rectangular

Curve In The Micom 13?

YES

Exchange The Motor

Check The Surroundings

Circuit And TR5

Page 42

6-3. DETAILED DIAGNOSIS

ķǂĸǂĹĺ

1. Driving Compartment Test Mode A. Hold down the ķ and the ĸ buttons simultaneously and then press the Power button ĺ.

(All of the LEDs li ght up and the display shows t1 in 2 seconds.) B. The driving part can be tested when you press the push button dial Ĺ right after entering into the TEST MODE.

No Check Test Method Description

Motor Wiring (Red/Whiteķ/Blue/Pink/ Violet/Whiteĸ) Resistance between Blue-Red, Red-Whiteķand Whiteķ-Blue should be

2.0Ω±10%.

Check resistance of the Water Valve terminals.

Check resistance of the Drain Pump terminals.

Check resistance of the Door S/W terminals.

Check frequency (Hz) between the Water Pressure Sensor terminals.

1.Replace the SUB PCB.

2.If not, replace the Noise Filter.

1 Motor

2 Water Valve

3 Drain Pump

4 Door S/W

5 Water Pressure Sensor

6 MAIN PCB

Check if the motor operates or check the Motor terminals.

Check if it supplies water or check the Water Valve terminals.

Check if it drains normally or check the pump terminals.

Check if it works at the Cotton course or check the Door S/W terminals.

Refer to Page 15. (Water Level Table at each Course)

1. Press the buttons on the display. Check if all of the LEDs work.

2.Check if voltage between the white and the black terminals

is 220~240V.

2.THERMISTOR TEST MODE A. Hold down “ķ” and “ĸ” keys simultaneously and then press POWER S/W “ĺ” on. (Whole lamps turn on and display show “t1” after 2 Seconds.) B. Press the “Delay start” key and display shows “t2”. C. Press the “Start/Pause” key and display shows the inside temperature of tub.

Page 43

7. EXPLODED VIEWS AND PARTS LIST

7-1. EXPLODED VIEWS OF TOP(FRONT)

C0002

C0043

F0125

R0019

C0115

R0036

A0328

D0010

C0058

C0044

D0072

D0045

F0064

D0061

Page 44

7-2. EXPLODED VIEWS OF TUB

U0355

I0043

U0010

U0095

U0307

R0030

R0158

U0029

U0038

U0015

U0023

U0033

U0016

U0355

U0328

R0001

U0035

U0013

U0030

U0018

Page 45

7-3. EXPLODED VIEWS OF CASE

P0001

W0004

W0001

R0027

R0158

W0002

Y0040

A0115

R0159

R0021

R0159

A0025

I0022

F0027

A0006

U0133

U0359

J0019

J0013

J0025

B0070

I0040

Page 46

7-4. PARTS LIST

SVCcod Low Material Description SPECIFICATION Qty SA/SNA A0006 DC63-00625A COVER-FRONT(L) SEW-DR803BT,PP,-,-,-,-,-, 1 SA A0025 DC97-02106C ASSY-FIXER TUB SEW-3HR105,L114.5 5 SA A0034 DC60-40146A BOLT-SPANER -,HR,-,T2.3,OD36,-,BLK,-,- 1 SA A0043 DC61-10688A CAP-FIXER SWF-P12,PP(TB53),-,-,-,WHT,-, 5 SA A0114 DC64-00587A SHUTTER Q1636GW/XEU,DNAPLA,-,-,-

,WHT,PP( A0115 DC61-60180A SLEEVE-PLUG NYLON#6,SEW-720DR,-,-,NTR 2 SA A0132 DC61-10673A CAP-DRAIN SWF-P12,PP(TB53),-,-,-,WHT,-, 1 SA A0282 DC63-00414B COVER-BACK SEW-3HR103BT,GI,T0.4,-,-,-,-, 1 SA A0332 DC62-10290B HOSE-WATER(H) WIP4013SRW,PVC+NYLON,ID10. 1 SA A0362 DC61-40081A HOLDER-WIRE DAWH-2NC,NYLON66,-,-,-,-,NTR 5 SA B0070 DC97-00920C ASSY-LEG SEW-HW108,- 4 SA C0002 DC97-12535Q ASSY-PANEL CON-

TROL C0043 DC64-01228B BUTTON-PUSH(F) CATS2-PJT,ABS,-,-,NEAT-WH 1 SA C0044 DC64-01229A BUTTON-PUSH(P) CATS2-PJT,ABS,-,-,-,- 1 SA C0058 DC64-00120E DOOR-LOCK S/W 760DR,NYLON,-,WHT,-,-,VDE/ 1 SA C0075 DC64-01226A KNOB-ENCODER CATS2-PJT,ABS,-,-,-,-,-,-,- 1 SA C0075 DC64-01227A BUTTON-ENCODER CATS2-PJT,ABS,-,-,-,- 1 SA C0103 DC66-00141A LEVER-DOOR P1092,ZnDC,-,-,-,-,-,DOOR LOC 1 SA C0115 MFS-C2J14NA-01ASSY-PCB PARTS(M) MFS-C2J14NA- 1 SA

J1484T/HAC,HOT+COLD 1 SA

1SA

C0116 DC66-30160A LEVER PE,L335,SWF-P12(ORG) 1 SA D0010 DC97-04751D ASSY-COVER DOOR P1405J/SEW-660DW,CR_COAT 1 SA D0045 DC97-03423A ASSY-HOLDER GLASS P1405J,ABS,WHT,CUSION- 1 SA D0061 DC64-00920C DOOR-GLASS S,P,F MODEL(LOW),GLASS,T5.0,H 1 SA D0109 DC61-60519A GUIDE-BAR SWF-P12,SHV-745CC1(SSEC),-,-,- 2 SA F0027 DC99-00662A ASSY-PAINT FRAME WF-J1456C,T1.0/NEAT-WHT 1 SA F0060 DC96-00775A ASSY-BRACKET

FRAME F0064 DC97-00416A ASSY-FRAME FRONT SWF-P12,FRAME-FRONT 1 SA F0065 DC97-05134C ASSY-FRAME

PLATE(U) I0003 DC62-10289C HOSE-WATER(C) RUSSIA,PVC+NYLON,ID10.3,-, 1 SA I0022 DC97-02250F ASSY-HOSE DRAIN(O) B1415J(NO-SPONGE),EPD 1 SA I0030 DC62-10278A HOSE-HANGER -,PP(JS20),-,-,-,-,NTR,- 1 SA I0041 DC62-10311A HOSE-PRESSURE -,EPDM,ID13.5,-,-,-,BLK,SW 1 SA I0043 DC62-10303A HOSE-AIR -,EPDM,ID24,-,-,L130,BLK,SWF-P1 1 SA I0046 DC62-10302A HOSE-DRAIN SWF-P12,EPDM,ID5.5,-,-,L220,B 1 SA J0019 DC61-10652B CASE-PUMP PP(5113MF6),SW-5C1P,-,-,-,WHT, 1 SA J0020 DC63-00443B COVER-PUMP SEW-HR125,PP,T1.3,-,-,-,-,WHT 1 SA J0025 DC31-30008D PUMP-DRAIN SW-70XP,220/240V,50Hz,SYNCHRO 1 SA P0001 DC97-09921F ASSY-COVER TOP J1484/HAC,MDF/NEAT-WHT WI 1 SA R0001 DC97-05848B ASSY-DRUM J1455AVIW/XSA,JUMP2-PJT/SSEC 1 SA R0007 DC97-05103A ASSY-FLANGE SHAFT Q1435V,ALDC+SM45C/FOR6 1 SA R0019 DC97-11440G ASSY-HOUSING

DRAWER

TS2-PJT,SPONGE ADD 1 SA

WF-B125AV/YLP,T-PJT/ 1 SA

J2 HOT+COLD,HOT+COLD 1 SA

Page 47

7-4. PARTS LIST

SVCcod Low Material Description SPECIFICATION Qty SA/SNA R0025 DC97-11386A ASSY-PANEL DRAWER CAT’S 2 -PJT,- 1 SA R0027 DC97-00731A ASSY-SENSOR PRES-

SURE

R0030 DC91-12078C ASSY-WIRE DIA-

PHRAGM R0036 DC61-01616A BODY-DRAWER STANDARD(B/P/J),PP,-,-,-,-,- 1 SA R0106 DD60-50018A NUT-FLANGE -,M5XP0.8,FZY,MSWR10,- 2 SA R0124 DC61-01416A STOPPER-DRAWER T-PJT,POM(F20-02),T2.5,-, 1 SA R0158 DC62-10305A HOSE-DRAWER TUB -,EPDM,ID35,-,-,L158,BLK 1 SA R0158 DC67-00051D HOSE-DRAWER S1093~S6093,EPDM,-,-,-,-,BLK 0.68 SA R0159 DC61-00952A SPRING-HANGER SEW-3HR105,-,CD3.5,-,OD25. 2 SA U0003 DC60-60044A WASHER-PLAIN -,ID10.5,OD30,T3,-,STS304 2 SA U0010 DC66-00327A PULLEY Q1636GW/XEU,ALDC8-1,-,-,-

U0012 DC61-01447A BRACKET-HEATER V7,STS430,T0.6mm,W30mm,L1 1 SA U0015 DC31-00002A MOTOR-DRUM MCC52/64-148/SEC2,220~240V,50 1 SA U0016 DC62-00160A SEAL-OIL TS0-PJT,NBR(SD35),BLK,-,-,-,JIN 1 SA U0018 DC47-00007A HEATER -,DRUM-MDL,SUS316L,-,-,230V,20,-, 1 SA U0023 DC61-00201A BRACKET-NUT SBHG-R,P1291,T3,-,-,-,NO-PAI 1 SA U0023 DC61-40348B BRACKET-NUT SBHG-R,P1291,T3,-,-,-,NO-PAI 5 SA U0023 DC61-40348B BRACKET-NUT SBHG-R,P1291,T3,-,-,-,NO-PAI 2 SA U0029 DC61-20219E DOOR-DIAPHRAGM SEW-HW107,EPDM,-,-,-,-,GR 1 SA U0030 DC61-30346C TUB-FRONT P1405J,FRPP(FRPP15%)SAMBAC

U0033 DC62-10304A HOSE-FILTER TUB -,EPDM,ID65,-,-,L151,BLK 1 SA U0035 DC62-20311A VANE-CHECK SWF-P12,EPDM,-,-,BLK,-, 1 SA U0078 DC97-10977K ASSY-SEMI TUB BACK J1455,FRPP(GF15%) 1 SA U0086 DC67-00079A WEIGHT-BALANCER(F) SEW-HW107,FE,-,-,-,RE 1 SA U0095 6602-001199 BELT-TIMING GEAR 1275JMA,POLYURETHAN,T3. 1 SA U0133 DC66-00421A DAMPER-SHOCK F-PJT,FRICTION-DAMPER,-,-,- 2 SA U0320 6011-001497 BOLT-HEX M7,L112.5(44),ZPC(YEL),SWRCH1

U0320 DC60-40141A BOLT-HEX SM10C/DAMPER,HEX,M8,L66,-

U0320 DC60-40144A BOLT-HEX M10,L41,ZPC2(YEL),SM10C/DAMP-

U0328 DC62-40183A PACKING-TUB SWF-P12,EPDM,-,-,-,-,-,BLK,- 1 SA U0353 DC61-60359E CLAMPER HOSE F1235AS/F1035AS,-,-,ID7.8,Y 1 SA U0353 DC61-60497A CLAMPER HOSE SWF-P12,HSWR,-,ID70/OD75.8, 1 SA U0353 DC61-60359G CLAMPER HOSE F1235AS/F1035AS,-,-,ID37.2, 1 SA U0353 DC61-00133A CLAMPER HOSE P1291,PP(BJ-730),ID24.5,OD2 1 SA U0355 DC67-00105A WEIGHT-BALANCER SEW-3HR105,GC-150,-,-,-, 1 SA U0355 DC67-00106A WEIGHT-BALANCER SEW-3HR105,GC-150,-,-,-, 1 SA U0359 DC62-00066A FILTER-CASE -,PP,-,-,-,-,BLK/SW90V2 1 SA U0360 DC61-60499B CLIP-TUB HSWR,P1291,-,NO/PAINT, 8 SA U0360 DC61-60520A CLIP-TUB SK5,SWF-P12,-,PLATE-TYPE, 2 SA W0001 DC96-00989B ASSY-WIRE HARNESS J1484/HAC,AC220V/50Hz/ 1 SA

P1091,S-PRE+BRAKET+ 1 SA

TS-2,Q1636,FE,SW-C,Z 1 SA

1SA

,OD296.8

1SA

K,-,

1SA

2SA

,ZPC2(

2SA

Page 48

7-4. PARTS LIST

SVCcod Low Material Description SPECIFICATION Qty SA/SNA W0002 DC96-00146A ASSY POWER CORD UCP2,-,250V/16A,-,-,-,-, 1 SA W0004 DC96-00954C ASSY-M.WIRE HAR-

NESS W0010 DC63-00651A COVER-HEATER Q1657TGW/XEU,GI,T0.4,-,-,-, 1 SA W0031 DC65-60118K BAND-RING HSWR,YEL,PI2.0,OD22,ID18 1 SA W0031 DC65-60118J BAND-RING -,HSWR,-,-,-,YEL,PI2.0/ID23 1 SA W0032 DC62-00024F VALVE-WATER B1215J,NYLON66/250TRMN,-,-,N 1 SA W0032 DC62-30314A VALVE-WATER SWF-P12,NYLON#6,-,-,-,EATON( 1 SA Y0035 DE65-20026A CABLE CLAMP -,NYLON66,-,NYLON66,NTR,NTR, 2 SA Y0040 DC29-00005B FILTER-EMI FA-2151T-2,1.2MM NUT,250V,15A 1 SA Z0006 DC97-02412A ASSY-BOLT SWF-P12,MOTOR, M8*L62 3 SA Z0006 DC97-02412B ASSY-BOLT SWF-P12,WEIHGT(L)/M8*L147 1 SA Z0006 DC97-02412D ASSY-BOLT Q1636,WEIHGT(U)/M8*L103 1 SA Z0006 DC97-02412H ASSY-BOLT Q1657,- 1 SA

CAT’S 2 B1182T/HAC M 1 SA

Page 49

8. BLOCK DIAGRAM

AC ZERO CROSSING

MOTOR

UNIVERSAL

MOTOR

CW/CCW

CONTROL

RELAY

DETECT CIRCUIT

POWER

CONTROL DRIVE

MAIN MOTOR

CONTROL DRIVE

PRE-VALVE

DRIVE

ACTUATOR CONTROL

HOT-VALVE

COLD-VALVE

CONTROL

TRIAC

DRIVE

DOOR CONTROL

DRAIN PUMP

DRIVE

CONTROL

DRIVE

RELAY

FREQUENCY

DOOR-COM

CHECK DRIVE

AD COVERTER

CONTROL

DOOR-LOCK

DOOR-UNLOCK

DOOR-CLOSE SIG

WATER LEVEL SENSOR

DOOR-LOCK SIG

WATER THERMISTOR

DOOR-UNLOCK SIG

HEAT SINK THERMISTOR

EEPROM

RESET

OSCILLA TION

DISPLAY

MAIN PBA

CIRCUIT

DRIVE

EEPROM

PRE WASH

RINSE

SPIN

CPU

WASH

MAIN MICOM

CIRCUIT

DISPLAY

CONTROL DRIVE

CIRCUIT

ERROR

CONTROL

AG DIRVE

Page 50

9. WIRING DIAGRAM

9-1. PCB ASSY’ LAYOUT

Description

system wire

valve wire

nano wire

sink thermistor

Number

Item Part

14 CN8 Connect the driving

15 CN11 Connect to the pre

16 CN10 Connect to the silver

17 CN9 Connect to the heat

Description

power

Number

Operating parts as cold/hot/

drain/door

ing part

Item Part

8 BD1 Convert AC into DC for motor

9 Triac2 Control motor on/off

10 RY3 Control direction of motor

11 CN5 Connects to the wire of motor

12 RY4 Control on/off as high RPM

13 Operat-

Description

functions

Number

Item Part

1 Display Displays or indicates operations or

2 Power_key Turns the power on/off

3 Start_key Stars/stops an option

4 key Selects and processes each function

5 CN1 Connect to the GND Wire

6 CN2 Detects if the door is open or closed

7 CN4 Connect to the AC1 Wire

Page 51

9-2. Connector & Relay Terminals Description (MAIN PCB)

Page 52

9-3. Connector & Relay Terminals Description (AG-KIT PBA Option)

Page 53

10. SCHEMATIC-DIAGRAM

10-1. ROLD (WF7450SAV)

Page 54

11. PCB CIRCUIT DIAGRAM

11-1. PCB CIRCUIT DIAGRAM

LED12

LED11

LED10

LED9

ISP_TX

DGND

SMW250-06DW

R50

+5V

DGND

MTZJ11B

LTV817B

RELAY2

HEATER_RELAY

DSP1

330

MOTOR_CONTROL

ISP_RX11ISP_TEST

456

10K

+5V

PC2

+12V

ZNR2

ZNR1

GRN

DOOR SWITCH

CSD-4328G

LED16

LED15

LED14

LED13

R11

123

CN7

10K

R53

IC7

R32

4.7K

R31

10nFC5

100K R18

14D182

14D911D

CN1

SET GND

CUT OFF

THERMAL

LED19

LED24

LED18

LED21

LED17

LED20

330

R12

R14

C28

TACHO

RESET

R45

4.7K

C25

100nF

CE6

1uF

7533

GND

DGND

IN OUT

100nF

C22

TR2

MMBT3904

DGND

R29

47K

R30

LTV814

100K R20

+12V

OMIF-S-112LM

BLK

YDW236-01BLK

RELAY1

POWER_RELAY

SV50-R32

O110O211O3

IC1

I17I26I35I4

R15 R13

+5V

R10 R8 R7 R4 R2

4.7k CHIP X 7

4.7K

5759616263

MICOM1

TMP86FS49FG

+5V

IC4

KA7805A

IN OUT

+8V

+12V

470uF

CE2

DGND

100nF

UG2D

D25 UG2D

D24

LVT1

T-PJT

123

2.2nF

D23

100K

R24

CE1

10uF

1N4007

D21

1N4007

D20

coil

WHT

CN4

NOISE

FILTER

AC220-240V

SCHEMATIC DIAGRAM

330

AG-IH

C23

CE4

GND

CE3

UF4007

PTC1

100nF

CM2

ZNR4

20D561

AC100-120V

LED4

LED8

LED3

LED7

LED2

LED6

LED5

SV50-R32

LED1

330

VCC

GND

KID65003AP

3I52I61

DGND

DIGIT-LED

THERMISTOR_HS

AVDD

VAREF

VDD1VSS

+5V

100nF

470uF

100nF

470uF

DGND

100

ZD1

R26

PC1

100

DR54EN

R25

BYP

100nF

IC3

TNY266P

1N4007

D18

1N4007

D19

270M

330

10nF

DGND

DOOR-SIG IN

ZERO CROSS

HEATER_RELAY

RY2

CC1

CN3

LED25

LED23

LED22

4041435961

383942

3839404142

SCAN-LED KEY

SCAN-LED KEY5SCAN-LED KEY

C26

10nF

DGND

C11

100nF

DGND

TR6

123

C12

R40

150

C16

10nF

POWER_RELAY

1N4148

POWER_RELAY

OMIF-S-112LM

RY1

680nF

GRN

This Document can not be used without Samsung’s authorization.

4.7K

R16

1N4148

100

4.7nF

C15

R37

4.7K

SW6 SW7 SW5

SPS

SW4 SW3 SW2 SW1

SPS

1N4148

100

R34

C14

4.7nF

BIMETAL(LOCK)

OPTION

KEY_SCAN

DOOR_LOCK

SCAN-LED KEY

AG_SIG-A

DIGIT-LED

KRC246S

DGND

+5V

DGND

300 R39

100nF

D26

1N4148

RY4

345

OMIH_SH_112L

MOTOR_CONTROL(10A)

OJ1

GSIB1560

R22

100

800, 1000RPM

CM3

1200, 1400RPM

100nF

HIGH RPM OPTION

INSERT

DELETE

YEL

CN6

WHT

123

TACHO

PROTECTOR

WASHING MOTOR

DGND

+5V

MEMORY(EEPROM)

DGND

AG_SIG-B

RY3

34567

JUMP

456

ROTOR

STATOR

C13

R36

R33

EEPROM1

IC5

EEPROM2

SCL52SDA

100nF

10K

DIAL-A

+5V

VCC

DIAL-B

RTE24012

100nF

CN5

SDA

24LC04B

A2 SCL

VSS

DGND

XIN

XOUT

+5V

R46

16MHZ

AG KIT

DGND

+5V

TACHO

C30

100nF

D27

1N4148

CE7

10uF

R41

D221N4007

47K

R23

R21

270K

R19

270K

DGND

586062

58596061626364

DIGIT-LED

SCAN-LED KEY

CW/CCW

POWER_RELAY

HIGH_SPEED

DIGIT-LED

KRC246S

DGND

202122

45678

THERMISTOR_H

THERMISTOR_HS

2I23

IC6

R38

10nF

TRIAC_1A

TRIAC2

VALVE_HOT

CN2

252627

R60

C32

DIGIT-LED

PWM_AG

O313O412O5

620

DIGIT-LED

SCAN-LED KEY

C34

150

10nF

TRIAC6

VALVE_PRE

IC2

DIGIT-LED

302951249

I66I7

R51

10nF

R48

TRIAC_1A

C21

RED

CN11

PRE VALVE

TR4

1415161718

GND VCC

620

+5V

KRC246S

KID65003AP

C19

150

10nF

TRIAC3

WHT

THERMISTOR

SCAN-LED KEY

DGND

GND

VCC

KID65783AP

+12V

P21

W_HEATER

DIGIT-LED

THERMISTOR_H

VALVE_HOT

222324

+12V

373635

DGND

123

+12V

1K R59

R42

C33 R61

SM2LZ47

+12V

620

10nF

C31

150

TRIAC_1A

10nF

TRIAC5

VALVE_MAIN

678

MAIN VALVE

R55

R58C29

PUMP MOTOR

BZ1

620

150

10nF

DGND

+12V

10nF

DOOR_UNLOCK(BIMETAL_LOCK)

C24

10nF

TRIAC_1A

TRIAC4

D_PUMP

CN8

DGND

TR3

KRC246S

202122

56789

WILL

AG_SIG-B

R47

620

+5V

DGND

C17

100nF

HOT VALVE

WATER SENSOR

1nF C6

DGND

TACHO

293031

R27

AG_SIG-A

R17

CM1

ZNR3

D17 D16

OPTION PART

D14 D12

D10 D8 D6

D11 D13 D15

313335

333435

D_PUMP

DOOR_COM

VALVE_PRE

VALVE_MAIN(COLD)

BUZZER

W/L SENSOR

TR1

20162514131549

161718

131415

AG-IH

PWM_AG

POWER_RELAY

MT1

SM10LZ47

TRIAC1

MT2

180

100nF

COIL1

20D561

NV2-08730

BD1

1N4148 X 9

1N4148 X 7

DOOR_UNLOCK

Size

CIS-MID NEW

[SMPS, FLASH MICOM]

Suwon-City, Gyeonggi-Do, Korea

416, Maetan-3Dong, Youngtong-Gu

SAMSUNG Electronics Co., Ltd.

TITLE:

MYUNG_JU KIM

MFG ENGR CHK

R&D CHK

Drawn by

DOC CTRL CHK

Engineer

12345

CN10

DGND

4.7K

R52

R54

4.7K

AG-IH

PWM_AG

AG_SIG-A

AG_SIG-B

TACHO

10nF

C20

MMBT3904

TR5

R49

4.7K

DGND

R35

27K

C10

100nF

1K R28

100nF

THERMISTOR_H

C18

100nF

DGND

1K R44

CE5

33K

THERMISTOR_HEATSINK

10uF

4.7K

R43

THERMISTOR_HS

C27

100nF

1K R57

CE8

10uF

+5V

R56

10K

123

WHT

CN9

HEATSINK TERMISTOR

Sheet

Drawing Number

REVChanged by

QA CHK

16:30:00 P.M.

Time Changed

Saturday, August 15, 2005

Date Changed

DGND

Page 55

11-2. PCB CIRCUIT DIAGRAM(AG-KIT Option)

D G N D

N 2

D G N D

L T V 8

1 7

1 K

3 8

L M 3 9 3

VCC

-IA OB

+IA

C G N D

-IB

GND

+IB

B 2 5 0

0 9 W

H T

n a

a l

C G N D

1 N 4 7 5 1

7 K

C 2

1 8 V

1 0

7 0 n F

C G N D

R 7

1 0

1 0 n F

L T V 8

1 7

IC1 KA2904

Z D 2

C G N D

VCC

-IA

+IA

-IB 5

GND

+IB

1 u

1 1

P C 6

D G

N D

T R 5

T R 6

This Document can not be used without Samsung’s authorization.

1 9 W

0 3 W

H T

6 n F

PTC1

JUMP

270M

BYP

S2 EN

TNY266P

4 7

1 8 V

1 0

T V 8 1 7 B

R 7

KSA928A-Y

4 .

D 6

1N4007

D 7

1N4007

C 3

UF4007

R 2 8

1 8 V

R 1 7

C G N D

R 1

D G N D

P C 1

C G N D

R 1 1

A g _ B

A g _ A

R 1 5

C G N D

P C 3

D G N D

1 K

4 .

7 K

T R 1

T R 4

4 .

7 K

C G N D

S i

g n a l

_ A

L T V 8 1 7 B

KSA928A-Y

L T V 8 1 7 B

R 6

1N4007

C 0

E u

1 0 0 K

D 2

2 .

2 N F

1 N 4 7 5 1

1 0 u F

KSA928A-Y

1 K

D 4

D 5

R 2 3

C 8

6 1 6

U F 4 0

0 7

1 2 0 O H

3 7

C E 9

7 K

U F

0 0 7

C G N D

+ 1 2 V

7 8 1 8

1 8 V

+ 1 2 V

S i

g n a l

_ B

Page 56

12. CIRCUIT DESCRIPTION

12-1.OVERALL SYSTEM

Page 57

12-2.AC INPUT & POWER CIRCUIT

Function

Generates a required DC power of 12V

Description

or 5V in case of supplied or disconnected

AC power.

- When AC 220V is applied to D18~D21

it to DC 300V

- When DC 300V IS appliedto IC3

LVT1t to dC 12V. and dc 8v

through IC4(KA7805).

- The 8v is transformed to DC 5V

Page 58

12-3.DRIVING SYSTEM CIRCUIT

Function

Controls each driving system (VALVE, DOOR

S/W, DRAIN-MOTOR) by turning RELAY or

TRIAC on/off.

Description

- MICOM outputs a high signal of 5V from pin

DOOR S/W) connected to CN6 turn on if

the TR14,15 are grounded this creates an

electric potential difference from the 12V that

- Then, IC6 pin10~16 areelectrically

grounded (0V).

-Whenpin#10to16aregrounded,and

# 29,30,31,32,34 of micom.

turns on RELAY 1,2,3,4 and TRIAC1,2,3,4,5,6

theyaresuppliedwithpower.

- The operating parts (VALVE, DRAIN-MOTOR,

Page 59

12-4.MOTOR CIRCUIT

Function

Description

that of the driving system.

(0V), TRIAC1 turns on.

unlocked. If unlocked, it does not apply

power to the motor even if TRIAC1 turns on.

the motor connected to CN4 is supplied with

power and drives CW (right direction).

will drive the motor CCW (reverse) as the

wiring is switched to CCW.

Supplies power to the motor and turns it

CW/CCW (Right / Reverse direction).

- The operation of TRIAC1 is the same as

- If the electric potential of R39 is grounded

- CN1 detects if the door is locked or

- If the door is unlocked and TRIAC1 turns on,

- Under such conditions, turning RELAY3 on

of the motor to one for higher driving.

- Turning RELAY4 on will switch the winding

Page 60

12-5.SENSOR DETECTION CIRCUIT

Function

Detects signals from the sensor and controls

the current system.

Description

- The water level sensor is connected to pin 8

of CN6.

- The frequency of the level sensor changes

accordingtothewateramountinthetub.

48 for detecting the water amount.

- Then, the frequency is input to MICOM pin

- The DHSEH sensor is connected to CN9 ;

according to the ambient temperature. The

- The resistance of the temp. sensor changes

changed resistance is applied to R56 and

R57.

decided according the temp. MICOM stores

- The voltage applied to R56 and R57 is

MICOM compares it to the pre-

the value.

defined one before detecting the current

- When voltage is applied to MICOM pins 23,

temp.

Page 61

12-6.MOTOR TACHO INPUT SYSTEM

Function

Description

Detects the current RPM of the motor and

controls the output.

pin 1 of the CN5.

- The motor TACHO sensor is connected to

asquarewaveisappliedtopin1.

- According to the current RPM of the motor,

- The square wave that is input to TR5

BASE turns the motor on if high (5V), and

turns it off if low (0V). And this operation

will be inverted to TACHO NET for a clear

wave with no noise.

Then MICOM counts the frequency of the

input signal and detects the current RPM of

- The signal is applied to MICOM pin 13.

the motor.

Page 62

12-7.SILVER NANO SYSTEM(OPTION)

Function

Applies the electric current to the silver plate during

the water supply and uses the silver water to

Description

perform the bacteria-free or sterilization processes.

the system.

- Selects the silver nano feature to operate

and AG_A.

- Supplies water to the two silver plates AG_B

Then, SINAL_A and SIGNAL_B output a

high signal of 5V.

for 15 seconds outputting a high signal of 5V.

SIGNAL_A output turns TR1 and TR6 on to

generate a potential difference between the 12V

and the grounding for causing the current to flow.

SIGNAL_B output turns TR4 and TR5 on to

generate a potential difference between the 12V

and the grounding for causing the current to flow.

the resistance of R27.

- Both SIGNAL_A and SIGNAL_B repeat this

- The flowing current is transformed to a voltage by

for detecting and controlling the flowing current.

- Then, the voltage is applied to IC1 pin 2 and used