Daewoo KOT-150S0A Service Manual Download Page 62 | Manualshive

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61

EXPLODED VIEW AND PARTS LIST

1. DOOR ASSEMBLY

1) KOT-150S0A

REF. NO.

PART NAME

DESCRIPTION

PART CODE

Q’TY

REMARK

BLACK

A00

FRAME DOOR

PC

3512204400

1

BISQUE

WHITE

BLACK

A01

HANDLE DOOR *I

PC

3512602900

1

BISQUE

WHITE

BLACK

A02

BARRIER SCREEN *O

TEMP GLASS T3.2

3517006200

1

BISQUE

WHITE

BLACK

A03

SUPPORTER BARR-S *O

ABS XR-401 H-2938

3515307000

1

BISQUE

WHITE

BLACK

A04

DOOR PAINTING AS

KOT-150S0A

3511712300

1

BISQUE

WHITE

A05

HOOK

POM

3513101200

1

A06

SPRING HOOK

PW1

3515101800

1

A07

SCREW TAPPING

T2S TRS 4X12 MFZN

7122401211

2

A08

BARRIER SCREEN *I

PE T0.1

3517006300

1

A09

GASKET DOOR

PP 5113MF6 A353B BK

3512302100

1

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Summary of Contents for KOT-150S0A

Page 1: ...Service Manual Microwave Oven Model KOT 150S0A KOT 151S0A KOT 152U0A KOT 152C0A KOT 155S0A DAEWOO ELECTRONICS CO LTD S M No T150S0A003 http svc dwe co kr Feb 2002...

Page 2: ...e gen erating compartments check the magnetron wave guide or transmission line and cavity for proper align ment integrity and connections d Any defective or misadjusted components in the interlock mon...

Page 3: ...make repairs 1 A broken door hinge 2 A broken door viewing screen 3 A broken front panel oven cavity 4 A loosened door lock 5 A broken door lock The door gasket plate and oven cavity surface should be...

Page 4: ...ing Forced air Microwave Distribution Stirring fan disk and turntable Rectification voltage doubler half wave Door Sealing Choke System Safety Device Cavity Thermostat open 194 90 reset 32 0 Bottom Th...

Page 5: ...4 EXTERNAL VIEW REFER TO THE INSTALLATION GUIDE INSTALLATION REFER TO THE INSTALLATION GUIDE OPERATIONS AND FUNCTIONS REFER TO THE USE AND CARE MANUAL...

Page 6: ...t the electric charge in the high voltage capacitor For about 30 seconds after the operation has stopped an electric charge remains in the high voltage capacitor When replacing or checking parts short...

Page 7: ...CABINET INSTALLATION Refer to FIG 1 for the following steps 1 Position the cabinet over the top of the microwave oven and slide the power cord all the way through the top opening 2 Slide the cabinet...

Page 8: ...7 FIG 1...

Page 9: ...ee FIG 1 3 Remove the screw from the top center tab of the control panel 4 From the top and back of the control panel lift the top locking tab and pull the top of the panel out slightly then lift the...

Page 10: ...s or lint 7 Mount the new control circuit board to the mounting bracket with 4 screws 8 Plug the following connectors over their control circuit board plugs so that they lock into place a 2 Pin connec...

Page 11: ...r motor to the oven with its two mounting screws 6 Connect the wires to the stirrer motor terminals 7 Reinstall stirrer motor cover 8 Refer to Cabinet Installations and reinstall the vent grille on th...

Page 12: ...new socket in its place with its mounting screw 5 Reattach the wire connectors over the light socket terminals 6 Reinstall the cavity lamp bracket into its air guide top and secure the cavity lamp br...

Page 13: ...om the top and back of the control panel pull out the Fuse Holder 5 Without touching the metal ends remove the defective line fuse from its holder and install a new one in its place 6 Mount the contro...

Page 14: ...emove it then install a new capacitor in its place 6 Reconnect the wires to the new vent motor capacitor terminals as shown in the FIG 6 7 Reinstall the control panel and the vent grille on the microw...

Page 15: ...to FIG 7 for the following steps 6 Remove the two mounting screws from the interlock switch assembly and position the assembly so you can easily access the switches and wiring 7 Refer to REMOVE SWITC...

Page 16: ...ck Monitor Switch provides an added safety check on the Primary and Secondary Interlock Switches If the Primary and Secondary Interlock Switches allow the oven to operate with the door open the Monito...

Page 17: ...for the following steps 6 Remove the mounting screw from the bottom thermostat and lift the bottom flange out at slot in the chassis See FIG 8 7 Unplug the two wire connectors from the bottom thermos...

Page 18: ...tor to the oven with its the screws 6 Connect the wires to the tray motor terminal 7 Reinstall the base plate in the oven 8 Secure its 4 screws WARNING Personal Injury Hazard Disconnect from the elect...

Page 19: ...he orange and brown wires over the light socket terminals 5 Mount the base plate to the microwave oven WARNING Personal Injury Hazard Disconnect from the electrical supply before servicing the unit Fa...

Page 20: ...njury Hazard Disconnect from the electrical supply before servicing the unit Failure to do so could result in electrical shock or other personal injury CAUTION Personal Injury Hazard Because of the we...

Page 21: ...sket along the edges of the door with a putty knife 3 Install the new gasket so that it fits tightly into place inside the door WARNING Personal Injury Hazard Disconnect from the electrical supply bef...

Page 22: ...re connectors from the cavity thermostat See FIG 13 2 8 Install the new cavity thermostat and reinstall the air guide top vent motor cabinet and vent grille on the microwave oven WARNING Personal Inju...

Page 23: ...22 FIG 13 1 FIG 13 2...

Page 24: ...motor 5 Install the new vent motor and secure the vent motor 6 Connect the wire connector and secure the vent motor 7 Mount the control panel to the oven and secure it with its mounting screw 8 Refer...

Page 25: ...or housing with the two mounting screws 8 Slide the fan blade 9 Connect the fan motor wires to the fan motor terminals Reassembly 1 Connect the wiring to the control panel circuit board and then mount...

Page 26: ...s lock together 8 Route the green wire under the cover and mount the eyelet to the chassis with the screw you removed earlier 9 Refer to Cabinet Installation and reinstall the cabinet and the vent gri...

Page 27: ...upply before servicing the unit Failure to do so could result in electrical shock or other personal injury CAUTION Personal Injury Hazard Because of the weight and and size of the microwave oven two p...

Page 28: ...steps 5 Unplug the five high voltage transformer wire connectors and remove high voltage transformer 6 Mount the new high voltage transformer to the plate with 4 mounting screws you removed earlier 7...

Page 29: ...nd of the high voltage rectifier lead to the bracket with its mounting screw FIG 18 WARNING Personal Injury Hazard Disconnect from the electrical supply before servicing the unit Failure to do so coul...

Page 30: ...emove the old capacitor WARNING Personal Injury Hazard Disconnect from the electrical supply before servicing the unit Failure to do so could result in electrical shock or other personal injury CAUTIO...

Page 31: ...the front end of the capacitor and tighten the screw just enough to hold the capacitor in place 8 Connect the end of the high voltage rectifier and red wire coming from the high voltage transformer to...

Page 32: ...Support the magnetron with one hand while you remove the screws with the other so that the magnetron does not fall as you remove it FIG 20 WARNING Personal Injury Hazard Disconnect from the electrica...

Page 33: ...to the top of the chassis with its four mounting hex unts Make sure that you tighten the nuts securely 11 Connect the red high voltage leads to the magnetron terminals 12 Refer to Cabinet Installation...

Page 34: ...manual by time cooking in order to find the exact cause of any trouble TROUBLE 1 Oven does not operate at all any input can not be accepted CONDITION CHECK Check continuity of interlock monitor switch...

Page 35: ...ter of approximately 190 mm 3 The oven and the empty vessel are at ambient temperature prior to the start of the test The initial temperature of the water is 10 2 C 50 3 6 F It is measured immediately...

Page 36: ...omagnetic energy leakage monitor NARDA 8100B HOLADAYH1501 600 cc glass beaker with an inside diameter of approx 8 5cm 3 5in Glass thermometer 100 C or 212 F When checking for R F leakage use an approv...

Page 37: ...faces faster than 1 inch per second 2 5 cm sec otherwise a false reading will occur When testing near a corner of the door keep the probe perpendicular to the surface and move it horizontally with out...

Page 38: ...cut out The cavity thermal cut out is located air guide top This thermal cut out is normally closed and will open at a set temperature to disable the oven The bottom thermal cut out is located direct...

Page 39: ...erviced for any reason NOTE Replace the magnetron if the checks and all of the high voltage component tests are good but the unit still does not heat a load 1 Set the ohmmeter to the Rx1 scale and mea...

Page 40: ...et the ohmmeter to the R x 1 scale and measure across the terminals Set the ohmmeter to the R x 1 scale and measure the a High speed windings blue and black wires b Low speed windings blue and white w...

Page 41: ...Set the ohmmeter to the Rx1 scale and measure forward resistance across the rectifier terminals with the lead touching the anode and the lead touching the cathode a Normal The meter indicates several...

Page 42: ...heck is interlock monitor switch primary and secondary interlock switches check 1 In case of interlock monitor switch check 2 In case of primary interlock switch check Condition 1 Door is opened 2 Com...

Page 43: ...42 WIRING DIAGRAM 1 WIRING DIAGRAM...

Page 44: ...ools the magnetron by blowing the air coming from the intake on the rear plate hole 3 The oven lamp lights the inside of the oven 4 Indicator light turns on to indicate function operation Cooking time...

Page 45: ...en auto defrost is selected and the desired defrosting time is chosen the automatic cycle divides the defrosting time into 5 periods of alternating defrost and stand times by cycling on and off 4 When...

Page 46: ...hen the CANCEL OFF pad is touched during cooking 1 The touch control circuit the voltage supplied to the RELAY 1 coil and causes the magnetron to stop oscillating 2 RELAY 5 and 6 turns off 3 The displ...

Page 47: ...r changes in proportion to fluctuation of power source voltage NOTE The allowable tolerance of the secondary voltage is within 5 of normal voltage NOTE Each measure point must be measured with GND poi...

Page 48: ...oesn t come on from G1 to G7 SEGMENT d doesn t come on from G1 to G7 SEGMENT e doesn t come on from G1 to G7 SEGMENT f doesn t come on from G1 to G7 SEGMENT g doesn t come on from G1 to G7 SEGMENT h d...

Page 49: ...r in display comes on Cause RELAY 6 does not operate CHECK METHOD When touching START pad oven lamp turns on Fan motor and turntable rotate and cook indicator in display comes on Cause RELAY 1 does no...

Page 50: ...CHECK METHOD If clock does not keep exact time you must check resistor R20 transistor Q6 STAGE POINT 1 DOOR OPEN 2 DOOR CLOSED A OPEN CLOSED B 5VDC GND CHECK NO METHOD REMEDY 1 Check the stage ON OFF...

Page 51: ...ating check the point A B C D after 1 2 minutes R 6 10 connecting status of humidity sensor must be checked before checking point A B C D NO 1 2 3 4 CHECK POINT A B C D REMARK 0 5V VALUE 3 5V 11 3Vdc...

Page 52: ...ssembly 1 Incomplete segments A Segments missing B Partial segments missing C Digit flickering other than normal fluorescent slight flickering D TOUCH CLOCK PAD TO ENTER TIME OF DAY does not disply wh...

Page 53: ...EVERAGE 3 MINUTE ADD FROZEN VEGETABLE OFF vent fan light 2 POPCORN FAVORITE CHOICE BEVERAGE BAKED POTATO PLATE DINNER PIZZA FROZEN VEGETABLE FROZEN COOK SENSOR TIME COOK AUTO DEFROST MINUTE ADD POWER...

Page 54: ...pad Between A and H 2 1 pad Between B and H 3 2 pad Between C and H 4 3 pad Between D and H 5 4 pad Between E and H 6 5 pad Between F and H 7 6 pad Between G and H 8 7 pad Between A and I 9 8 pad Betw...

Page 55: ...LOCK AUTO START pad Between D and K 26 AUTO DEFROST pad Between E and K 27 COOK TIME pad Between F and K 28 POWER LEVEL MORE LESS pad Between G and K 29 LIGHT OFF pad Between A and L 30 LIGHT NIGHT pa...

Page 56: ...55 2 COMPONENT INFORMATION 1 TRANSISTOR 2 DIODE AND ZENER DIODE 2 COMPONENT INFORMATION 1 TRANSISTOR...

Page 57: ...56 3 PRINTED CIRCUIT BOARD FILM...

Page 58: ...57...

Page 59: ...58 4 PCB CIRCUIT DIAGRAM...

Page 60: ...ONNECTOR WAFER CN4 35328 0610 4CW3061MXO 1 15 CONNECTOR WAFER CN5 YM396 05VA 3519150510 1 16 DIODE SWITCHING D1 D15 D17 D18 1N4148 AUTO 52mm DZN4148 17 17 DIODE RECTIFYING D16 D19 D24 1N4004A AUTO 52m...

Page 61: ...2W 150 Ohm 5 RD 2Z151JS 2 KOT 151S KOT 155S 48 RESISTOR FUSIBLE R28 1 4W 1 Ohm 5 RF AZ109J 1 49 RESISTOR R29 1 2W 27 Ohm 5 RD 2Z270JS 1 50 RESISTOR R30 1 6W 47K Ohm 5 RD AZ473J 1 51 RESISTOR ARRAY RA1...

Page 62: ...HITE BLACK A02 BARRIER SCREEN O TEMP GLASS T3 2 3517006200 1 BISQUE WHITE BLACK A03 SUPPORTER BARR S O ABS XR 401 H 2938 3515307000 1 BISQUE WHITE BLACK A04 DOOR PAINTING AS KOT 150S0A 3511712300 1 BI...

Page 63: ...BLACK A02 BARRIER SCREEN O TEMP GLASS T3 2 3517006210 1 BISQUE WHITE A03 FRAME DOOR HANDLE SILICON RUBBER 3517304100 1 BLACK A04 DOOR PAINTING AS KOT 150S0A 3511712300 1 BISQUE WHITE A05 HOOK POM 351...

Page 64: ...TEMP GLASS T3 2 3517006220 1 BISQUE WHITE BLACK A03 HANDLE DOOR I PC 3512602920 1 BISQUE WHITE BLACK A04 DOOR PAINTING AS KOT 150S0A 3511712300 1 BISQUE WHITE A05 HOOK POM 3513101200 1 A06 SPRING HOO...

Page 65: ...RTER HANDLE PC 3515307910 1 BISQUE WHITE BLACK A04 DOOR PAINTING AS KOT 150S0A 3511712300 1 BISQUE WHITE A05 HOOK POM 3513101200 1 A06 SPRING HOOK PW1 3515101800 1 A07 SCREW TAPPING T2S TRS 4X16 MFZN...

Page 66: ...U0A 351822320 1 BISQUE WHITE BLACK KOT 152C0A 3518522330 1 BISQUE WHITE BLACK PC 3516722700 1 BISQUE WHITE BLACK B01 CONTROL PANEL PC 3516722710 1 BISQUE WHITE BLACK PC 3516722720 1 BISQUE WHITE B02 B...

Page 67: ...ACK B00 SWITCH MEMBRANE KOT 155S0A 3518522340 1 BISQUE WHITE B01 DECORATOR C PANEL STS430 T0 5 3511609200 1 BLACK B02 CONTROL PANEL PC 3516722730 1 BISQUE WHITE B03 BACK PLATE SECC T0 6 3516802110 1 K...

Page 68: ...67 3 TOTAL ASSEMBLY...

Page 69: ...KCPSWLF10 1 BISQUE WHITE BLACK KOT 155S0A PKCPSWLD10 1 BISQUE WHITE F00 SCREW TAPPIMG TI TRS 4X10 MFZN 7112401011 1 F01 HARNESS LAMP KOT 150S0A 3512766700 1 F02 SCREW TAPPING TI TRS 4X10 MFZN 71124010...

Page 70: ...519000 1 F30 SCREW TAPPING TI TRS 4X10 MFZN 7112401011 1 F31 PROTECTOR WIRE SECC T0 6 3515703700 1 F32 LOCK POM 3513804700 1 F33 LEVER LOCK POM 3513700800 1 F34 SW MICRO VP531A OF SZM V16 FA 61 4415A6...

Page 71: ...50V 75W 3513003000 1 F69 COVER MOTOR SYNCRO SECC T0 5 3511406700 1 F70 SCREW SPECIAL T1 TRS 4X16 SE MFZN 7S312X40D1 1 F71 SCREW SPECIAL T1 TRS 4X16 SE MFZN 7S312X40D1 3 F72 SENSOR HUMIDITY DH 1 D2 351...

Page 72: ...S M NO T150S0A003 DAEWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC PRINTED DATE Feb 2002...

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