Daewoo DWF-4220 Series Service Manual Download Page 40

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DISPLAY UNIT

1. CIRCUIT DIAGRAM

• When electric power source is turned on, the LED lamp is turned on necessarily corresponding to the standard

course.

HOT

R66 220

STANDARD

WARM

R9 220

MED

SPEED

DHY

R58 220

MIN

DRY/WOOL

R34 220

WASH

R53
10K

Q4
A1270

Q5
A1270

R56
10K

R54

3.9K

R55

3.9K

R63

3.9K

R62
10K

Q7
A1270

34 HOLD

17 P10

18 P11

11 R60

22 P20

23 P21

25 P23

19 P12

+6V

COLD

R64 220

LOW

DIRTY

24 P22

RINSE

Summary of Contents for DWF-4220 Series

Page 1: ...Full Auto Electric Washing Machine Service Manual 612 1 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC FAX 02 364 5588 5305 TEL 02 360 7315 7 DAEWOO...

Page 2: ...RECTIONS FOR INSTALLATION AND USE HOW TO INSTALL THE WASHING MACHINE 12 HOW TO CONNECT THE INLET HOSE 14 HOW TO GROUND THE WIRE 15 6 PROCEDURE OF FULL AUTOMATIC WASHING 16 7 DIRECTIONS FOR DISASSEMBLY...

Page 3: ...8 131 DWF 5020 7 WATER LEVEL DWF 4220 HIGH 47 MEDIUM 38 LOW 30 SMALL 22 SELECTOR DWF 5020 HIGH 48 MEDIUM 39 LOW 31 SMALL 23 8 OPERATING WATER PRESSURE 0 3 8kgf cm2 2 9 78 4N cm2 SPIN 690 50Hz 9 REVOLU...

Page 4: ...just the unbalanced load 6 One touch operation system WATER CURRENTS TO ADJUST THE UNBALANCED LOAD It is a function to prevent eccentricity of the clothes after washing by rotating pulsator C W and C...

Page 5: ...ed up near the tub wall by rotation of the pulsator B Water is pulled down in the middle of the tub by rotation of the pulsator C Water currents is generated by rotation of the pulsator C Rotate A A B...

Page 6: ...process is finished the softener is added into the tub through softener outlet FLOW OF THE SOFTENER FLOW OF THE SOFTENER INSIDE OF THE BALANCER NOTE Softener moves into the next room when r p m of the...

Page 7: ...witch is operated due to the unbalance of the tub the program is stopped and the alarm is given CIRCULATING WATER COURSE AND LINT FILTER CIRCULATING WATER The washing and rinsing effects have been imp...

Page 8: ...ONOUS MOTOR STRUCTURE FUNCTIONAL PRINCIPLE 1 When the SYNCRONOUS MOTOR connected to the power source the SYNCRONOUS MOTOR rotates and revolves the pulley by gear assembly for reducing 2 When the pulle...

Page 9: ...r shaft One clutch bearing Brake lever Spinner shaft Planetary gear Clutch spring Clutch boss Spinner pulley Sun gear Internal gear Planetary gear Pulsator Planetary V belt Spinner pulley 1 revolution...

Page 10: ...cond 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 FUNCTIONAL PRINCIPLE OF BUBBLE WAS...

Page 11: ...pters will not be provided Drain Hose Clamp Under Base Cover Option Drain Hose Pump Model Non Pump Model SOFTENER INLET Pour softener into the softener inlet just before wash and it will be added into...

Page 12: ...the size of the wash load Start Hold Button Press this button to begin operation or to stop operation temporarily Operation and temporary stop are repeated as it is pressed Process Selection Button T...

Page 13: ...er put down to the ground 2 Check the Horizontal Status Check the position of tub above the center of the washer NOTES The opening must not be obstructed by carpeting when the washing machine is in st...

Page 14: ...drain hose and at a height of min 70cm 70Cm min Position the washing machine next to the wall MUST be ventilated NOTES 1 Let the highest point of the drain hose be more than 1m above the floor If not...

Page 15: ...e separated from the water tap adapter Connector A Tape Connector B Tap Adapter Connector B Connect the inlet hose to the water tap adapter by pulling down the collar of the hose end Connect the con n...

Page 16: ...r pipe made of plastic If both your water tap and water pipe are made of metal connect the ground wire to the base of the water tap In case of using 3 core cord there is no need for grounding 20Cm Nev...

Page 17: ...ose the water tap and disconnect the inlet hose if necessary Turn off the power and disconnect the power cord from the electric outlet being sure to take hold of the plug Clean the lint filter Pressin...

Page 18: ...Only Wash Stage 2 Only Rinse Stage 3 Only Spin Stage 4 Wash and Rinse Stage 5 Rinse and Spin Pressing the Power Switch Selecting Water level Selecting Process WATER LEVEL H I G H M E D I U M L O W S M...

Page 19: ...box wrench Remove the special washer T type box wrench Special Nut Special Washer Lay the front of the washer on the floor Remove four bolts mounting the gear protect by using a box wrench and remove...

Page 20: ...he adjustment screw fastening the bracket and place the adjustment screw to the brake lever as shown in figure Tighten the adjustment screw completely Brake lever Adjustment bolt Gear mechanism ass y...

Page 21: ...ter inlet valve make operating sound Change water inlet valve YES Flow rate l min Water pressure kgf cm 2 11 5 15 0 18 0 20 3 24 1 27 4 0 3 0 4 0 5 0 6 0 8 1 0 NOTE Open the water tap fully and measur...

Page 22: ...normal P C B ASS Y is defective Change P C B ASS Y PROGRESS LAMPS LED DO NOT LIGHT UP Press START HOLD button NO P C B ASS Y is defective Change P C B ASS Y YES Do you press START HOLD button YES YES...

Page 23: ...r open Does the safety switch operate normally Improper connection of the connector Connect the connector properly P C B ASS Y is defective Do you put down the drain hose Does the syncronous motor ope...

Page 24: ...not rotate Is the input voltage of the drain motor normal P C B ASS Y is defective Change the P C B ASS Y V belt is defective NO YES Is the V belt worn out Change the motor Motor is defective Is the i...

Page 25: ...e of the transformer normal P C B ASS Y is defective Change P C B ASS Y PROGRESS LAMPS LED DO NOT LIGHT UP Press START HOLD button NO P C B ASS Y is defective Change P C B ASS Y YES Do you press START...

Page 26: ...the water inlet filter It passes over the 30 minutes yet it doesn t Check whether or not it comes to the come to assigned water level assigned water level o o o o o o o o o o Wash loads get uneven du...

Page 27: ...by pressing START HOLD button TEST MODE The operation condition of the washer can be checked without water in the tub by test mode of the P C B ASS Y as shown below Buzzer sound indicating the end of...

Page 28: ...O M I C D W F 4 2 2 0 DISPLAY UNIT L E D KEY INPUT UNIT SAFETY SWITCH UNIT LOAD DRIVE UNIT MOTOR WATER INLET DRAIN BUBBLE WATER LEVEL SENSOR UNIT INTERRUPT UNIT POWER SUPPLY UNIT MAIN OSC 4 1943MHz R...

Page 29: ...2 AIN6 9 R53 AIN7 10 R60 11 R61 12 R70 13 R71 WTO 14 R72 XTIN 15 R73 XTOUT 16 P10 17 P11 18 P12 19 P13 20 VSS 21 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 VDD R92 SCK R91 SO R90 S...

Page 30: ...f electric power to loads The purpose of using the MICOM terminal No 3 Q15 A1271Y is that the Q15 prevents the instant supply of electric power supply to loads in case MICOM s action is wrong by means...

Page 31: ...mes it is happened that the TRIAC DRIVE TR has a short circuit or an open circuit In this case being measured the resistance between the TR E C with tester the resistance value should be near the If n...

Page 32: ...SNUBBER TOTAL PARTS CURRENTS CW WASH SM12JZ47 62 1 2W 100 1W 683K BCR 12PM 14L AC 250V CCW WASH SM12JZ47 62 1 2W 100 1W 683K BCR12PM 14L AC 250V DRAINAGE BCR1AM 12L 330 1 4W 100 1W 103K AC 250V HOT C...

Page 33: ...e frequency between the MICOM terminal No 38and the GND 3 CAUTION FOR A S The output of the frequency in the WATER LEVEL SENSOR varies in accordance with temperature and using condition If it doesn t...

Page 34: ...6V D5 IN4003 104Z 50V C25 470uF 16V C27 104Z 50V C26 1000uF 35V IC1 REGULATOR 7806 D3 1N4003 D2 1N4003 C28 104Z 50V The gray red The waveform in secondary part of the transformer Measuring the wavefor...

Page 35: ...condenser and ceramic condenser have short circuit The reason is that it happerns no electric power supply INTERRUPT UNIT 1 CIRCUIT DIAGRAM 2 EXPLANATION OF CIRCUIT The INTERRUPT UNIT is necessary to...

Page 36: ...all programs are initialized when the power switch is ON Here the reason why uses RESET I C is that the RESET UNIT prevents the MICOM from incorrect action Also the R37 C19 104Z as a RC filter is use...

Page 37: ...g an output the frequency waveform of 2 KHz from the MICOM terminal NO 20 BUTTON INPUT UNIT 1 CIRCUIT DIAGRAM R57 220 BUZZER 6V 20 MICOM WATER TEMPERATURE LEVEL D10 MENU D6 STOP START D7 R36 220 R22 1...

Page 38: ...between the part of and the GND Specification of oscillator It is in general use for the MICOM maker s recommendatory value of condenser which is fit for MICOM s characteristics SAFETY SWITCH UNIT 1...

Page 39: ...h the ground The UNBLANCE error occurs in case of not being level with the ground The waveform between the MICOM terminal No 13 and the GND LOAD SENSOR UNIT 1 CIRCUIT DIAGRAM 2 EXPLANATION OF CIRCUIT...

Page 40: ...essarily corresponding to the standard course HOT R66 220 HI STANDARD WARM R9 220 MED SPEED DHY R58 220 MIN DRY WOOL R34 220 WASH R53 10K Q4 A1270 Q5 A1270 R56 10K R54 3 9K R55 3 9K R63 3 9K R62 10K Q...

Page 41: ...L WH RD WH RD WH RD LINE FILTER WH WH RD POWER SWITCH WH EARTH GN YW OR GN BL YW FUSE BL YW BK WH RD FUSE BL YW BR OR BK BN YW OR GN BL OR WH WH FUSE BL WH WH RD WH RD WH RD WH RD YW BK VT VT BL BL VT...

Page 42: ...MOTOR MOTOR P C B RD BL WH RD WH RD LINE FILTER WH WH RD POWER SWITCH WH EARTH GN YW OR GN BL YW FUSE BL YW BK WH RD FUSE BL YW BR OR BK BL OR WH WH WH RD WH RD YW BK VT VT BL BL VT PK RD BL YW BK VT...

Page 43: ...02010 FRPP COLD P10 3615402010 VALVE INLET COLD AC 220V 60Hz 1 Peru etc 3615403310 AC 110 120V 50 60Hz Japan 3615403510 AC 110 130 60Hz Taiwan 3615403710 AC 220 240V 50Hz Chile 3615402130 VALVE INLET...

Page 44: ...ECIAL WASHER SUS 304 T2 0 P144 1 T11 4507D83080 SPECIAL NUT SUS 340 1 T12 3619702200 PULSATOR AS PP 1 T13 4505E32030 SC PULSATOR FIX AS 6x2 5 SCREW RING O 1 T14 3611408300 COVER TUB PP 1 T15 361030290...

Page 45: ...0 6t PUMP 1 361806100 SGCC 0 6t NON PUMP C02 3614509900 PLATE UPPER PP 1 C03 3612201800 FRAME TOP PP 1 C04 3612601100 HANDLE CABINET PP 1 C05 3611301100 CORD POWER AS 3x1 0 300x2 300 RTM PN 1 WAK42H76...

Page 46: ...8703720 CONNECTOR FUSE PT ASS Y WASHING MACHINE W01 3619801600 SUSPENSION AS DWF 4200 SERIES Front 2 W02 3619801610 SUSPENSION AS DWF 4200 SERIES Back 2 W03 3611411800 COVER BACK PP PUMP 1 3611404400...

Page 47: ...46 PARTS DIAGRAM P18 P18 P15 P16 P14 P04 P03 P07 P05 P13 P22 P23 P20 P12 P11 P08 P10 P10 P09 P01 P02...

Page 48: ...47 T14 T13 T12 T10 T04 T07 T08 T06 T15 T27 T22 T16 T17 T26 T28 T29 T29 T03 T11 T02 T01 T02 T32 T23 T17 T25 T24 T19 T21 T20 T18 T31 T30 T05 DWF 4220 NON PUMP MODEL...

Page 49: ...48 C01 C03 C04 C02 W03 B14 B13 A01 B08 B05 B01 W01 W01 B13 A01 A02 W04 C05 B02 B04 B03 NON PUMP MODEL B07 B06 B08 B09 B10 B11 B12...

Page 50: ...9k J R9 RD 4Z221JK R CARBON FILM 1 4 220 J R24 RD 4Z221JK R CARBON FILM 1 4 220 J R25 RD 4Z221JK R CARBON FILM 1 4 220 J R30 RD 4Z221JK R CARBON FILM 1 4 220 J R31 RD 4Z221JK R CARBON FILM 1 4 220 J R...

Page 51: ...ARBON FILM 1 4 10k J R49 RD 4Z103JK R CARBON FILM 1 4 10k J R51 RD 4Z103JK R CARBON FILM 1 4 10k J R53 RD 4Z103JK R CARBON FILM 1 4 10k J R56 RD 4Z103JK R CARBON FILM 1 4 10k J R60 RD 4Z103JK R CARBON...

Page 52: ...02A C ELECTRO 16V RS 1000 F 13x20 C25 CEXE1C471A C ELECTRO 16V RS 470 F 10x20 C26 CEXF1V102A C ELECTRO 35V RSS 1000 F 13x25 C1 CMXB2E683J C MYLAR EU 250V 0 068 F J C3 CMXB2E683J C MYLAR EU 250V 0 068...

Page 53: ...7400300 HEAT SINK 50x50 T 3 DWF 6688AT BUZZ1 4507B72160 BUZZER WFB20 16PC IC1 13GR47C840 IC MICOM TMP47C840N IC2 1S8054HNZ IC AUDIO RESET S 8054HN IC3 TPC817C PHOTO COUPLER PC817C IC4 1L7806 IC REGULA...

Page 54: ...LED12 DDLR523D LED LAMP DLR523D LED13 DDLR523D LED LAMP DLR523D LED14 DDLR523D LED LAMP DLR523D SW1 5S50101400 SW TACT KQB 902 1C 1P SW2 5S50101400 SW TACT KQB 902 1C 1P SW3 5S50101400 SW TACT KQB 902...

Page 55: ..._ _ IC2 RESET I C 5 8054HN 1 3 R38 10K D5 1N4003 _ C28 104Z IC4 REGULATOR 7806 C26 _ 35V D2 1N4003 D4 1N4003 D1 1N4003 C24 103Z R61 22K R60 10K Q6 C3202 R50 3 9K C20 47 F 10V J16 J9 DRY WOOL J8 RSV NO...

Page 56: ...RESET I C 5 8054HN 1 3 R38 10K D5 1N4003 _ C28 104Z IC4 REGULATOR 7806 C26 _ 35V D2 1N4003 D4 1N4003 D1 1N4003 C24 103Z R61 22K R60 10K Q6 C3202 R50 3 9K C20 47 F 10V J16 J9 DRY WOOL J8 RSV NOS R28 10...

Page 57: ...56 BARE PCB TOP BOTTOM...

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