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Daewoo 181GOA0A manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    Service Manual Microwave Oven Model : KOR-180A0A KOR-181G0A DAEWOO ELECTRONICS CO., L TD. http://svc.dwe.co.kr S/M No.: R180A0A002[...]

  • Page 2

    PRECA UTIONS T O BE OBSER VED BEFORE AND DURING SER VICING T O A V OID POSSIBLE EXPOSURE T O EXCESSIVE MICRO W A VE ENERGY (a) Do not operate or allow the oven to be operated with the door open. (b) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs if necessary: [...]

  • Page 3

    SAFETY AND PRECA UTIONS CAUTION : This Device is to be Serviced Only by Properly Qualified Service Personnel. Consult the Service Manual for Proper Service Procedures to Assure Continued Safety Operation and for Precautions to be Taken to Avoid Possible Exposure to Excessive Microwave Energy. 1. FOR SAFE OPERATION Damage that allows the microwave e[...]

  • Page 4

    SPECIFICA TIONS MODEL KOR-180A, KOR-181G POWER SUPPLY 120V~60HZ, SINGLE PHASE WITH EARTHING MICROWAVE 1500 W POWER GRILL CONSUMPTION COMBINATION MICROWAVE ENERGY OUTPUT 1100 W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS (W X H X D) 589X339X488mm (23.2X13.3X19.2 in.) CAVITY DIMENSIONS (W X H X D) 399X278X451mm (15.7X10.9X17.8 in.) NET WEIGHT APPR[...]

  • Page 5

    EXTERNAL VIEW 1. OUTER DIMENSION 488 5[...]

  • Page 6

    1. DOOR SEAL Door seal maintains the microwave within the oven cavity and prevents microwave leakage. 2. DOOR HOOK When door is closed, it will automatically lock shut. If door is opened while oven is operating, magnetron tube will immediately stop operating. 3. DOOR SCREEN Allows viewing of food. Microwave cannot pass through perforations in scree[...]

  • Page 7

    K OR-180A0A 1. Time set pad - Used to set the cooking time and the present time. 2. Display - Cooking time, power level, indicators and present time are displayed. 3. One touch - Used to cook or reheat specific quantities of food. 4. Auto cook - Used to cook or reheat. 5. More - Used to add time to cooking. 6. Less - Used to remove time from cookin[...]

  • Page 8

    8 M/W DEF MORE AUTO COOK 1. BREAD 2. SOUP 3. BAKED POTATO 4. FRESH VEGETABLE 5. FROZEN VEGETABLE LESS TIMER LOCK lb POPCORN FROZEN PIZZA DINNER PLATE MEAT POWER DEFROST POULTRY FISH STOP/ CLEAR START/ SPEEDY COOK AUTO DEFROST CLOCK KITCHEN TIMER 12 3 45 6 78 9 0 MICROWAVE OVEN KOR-181G 1. Time set pad - Used to set the cooking time and the present [...]

  • Page 9

    INST ALLA TION 1. Steady , flat location. This microwave oven should be set on a steady, flat surface. 2. Leave space behind and side. All air vents should be kept a clearance. If all vents are covered during operation, the oven may be overheated and, eventually, cause oven failure. 3. A wa y from radio, and TV sets Poor television reception and ra[...]

  • Page 10

    OPERA TIONS AND FUNCTIONS 1. Connect the main lead to an electrical outlet. 2. After placing the food in a suitable container, open the oven door and put it on the glass tray. The glass tray must always be in place during cooking. 3. Close the door securely. 4. The oven door can be opened at any time during operation by touching the door release bu[...]

  • Page 11

    DISASSEMBL Y AND ASSEMBL Y - Cautions to be observed when trouble shooting. Unlike many other appliances, the microwave oven is high-voltage, high-current equipment. It is completely safe during normal operation. However, carelessness in servicing the oven can result in an electric shock or possible danger from a short circuit. You are asked to obs[...]

  • Page 12

    1. T o remo ve cabinet 1) Remove three screws on cabinet back. 2) Push the cabinet backward. 2. T o remo ve door assembly 1) Remove two screws which secure the stopper hinge top. 2) Remove the door assembly from top plate of cavity. 3) Reverse the above for reassembly. NOTE : After replacing the door assembly, perform a check of correct alignment w[...]

  • Page 13

    3. T o remove door parts. REF NO. PART CODE PART NAME DESCRIPTION Q TY REMARK A01 3512205100 3512203900 FRAME DOOR ABS SG-175, SG-0760D 1 KOR-180A KOR-181G KOR-180A KOR-181G A02 3517005320 3517007400 BARRIER-SCREEN*O SAN T1.5 1 A03 3515204400 STOPPER HINGE *T AS KOR-162J0A 1 A04 3511710500 DOOR PAINTING AS KOR-180A 1 A05 3517005200 BARRIER-SCREEN*I[...]

  • Page 14

    4. Method to reduce the gap between the door seal and the oven fr ont surface . (1) To reduce gap located on part A . Loosen two screws on stopper hinge top, and then push the door to contact the door seal to oven front surface. Tighten two screws. (2) To reduce gap located on part B . Loosen two screws on stopper hinge under, and then push the doo[...]

  • Page 15

    5. T o remove contr ol panel par ts. REF NO. PART CODE PART NAME DESCRIPTION Q TY REMARK 3518522800 SWITCH MEMBRANE KOR-180A0A 1 A01 3518522810 KOR-181G2A 1 3516726000 1 A02 3516719100 CONTROL PANEL ABS AF-348, VT-0826 1 KOR-180A KOR-180G A03 PKMPMSXL00 PCB AS KOR-161G2A 1 A04 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 4 A05 3513702800 LEVER DOOR O[...]

  • Page 16

    NOTE : Never install the magnetron without the metallic gasket plate which is packed with each magnetron to prevent microwave leakage. Whenever repair work is carried out on magnetron, check the microwave leakage. It shall not exceed 4mW/cm 2 for a fully assembled oven with door normally closed. 6. T o remove high v oltage capacitor . 1) Remove a s[...]

  • Page 17

    8. T o remove wind guide assembl y . 1) Remove a screw which secure the wind guide assembly. 2) Draw forward the wind guide assembly. 3) Pull the fan from the motor shaft. 4) Remove two screws which secure the motor shaded pole. 5) Remove the motor shaded pole. 6) Reverse the above steps for reasembly. 9. T o remove H.V .transf ormer . 1) Remove fo[...]

  • Page 18

    INTERLOCK MECHANISM AND ADJUSTMENT The door lock mechanism is a device which has been specially designed to completely eliminate microwave radiation when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave. (1) Primary interlock switch When the door is closed, the hook locks the oven[...]

  • Page 19

    TR OUBLE SHOO TING GUIDE Following the procedure below to check if the oven is defective or not. 1) Check grounding before trouble checking. 2) Be careful of the high voltage circuit. 3) Discharge the high voltage capacitor. 4) When checking the continuity of the switches, fuse or high voltage tranformer, disconnect one load wire from these parts a[...]

  • Page 20

    CONDITION CHECK Check continuity of magnetron Defective magnetron RESULT No Continuity CAUSE REMEDY Replace Outlet has proper voltage Fuse does not blow. CONDITION CHECK Check continuity of primary interlock switch Malfunction of primary interlock switch RESULT No Continuity CAUSE REMEDY Adjust or replace Turn table motor and oven lamp do not turn [...]

  • Page 21

    CONDITION CHECK RESULT Check continuity of high voltage capacitor terminals with wires removed Continuity CAUSE Defective high voltage transformer REMEDY Replace No microwave oscillation Check continuity of high voltage rectifier in forward and backward direction with DC megger Continuity in backward direction Defective high voltage rectifier Repla[...]

  • Page 22

    (TROUBLE 4) The following visual conditions inditions indicate a probable defective touch control circuit or membrane switch assembly 1. Incomplete segments, 1) Segments missing. 2) Partical segments missing. 3) Digit flickering other than normal display slight flickering. 4) " :0" does not display when power is on. 2. A distinct change i[...]

  • Page 23

    MEASUREMENT AND TEST 1. MEASUREMENT OF THE MICR O W A VE PO WER OUTPUT Microwave output power can be checked by indirectly mmeasuring the temperature rise of a certain amount of water exposed to the microwave as directed below. PROCEDURE 1. Microwave power output measurement is made with the microwave oven supplied at rated voltage and operated at [...]

  • Page 24

    2. MICRO W A VE RADIA TION TEST PROCEDURE 1. Prepare Microwave Energy Survey Meter, 600cc glass beaker, and glass thermometer 100 F). 15cc of tap water initially at 20 5 9 F) in mm(3.5 in.). 3. Place it at the center of the tray and set it in a cavity. 4. Close the door and operate the oven. 5. Measure the leakage by using Microwave Energy Survey M[...]

  • Page 25

    3. COMPONENT TEST PR OCEDURE High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle. It is neither necessary nor advisable to attempt measurement of the high voltage. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor. 1. High[...]

  • Page 26

    WIRING DIA GRAM 26[...]

  • Page 27

    PRINTED CIRCUIT BO ARD 1. CIRCUIT CHECK PR OCEDURE 1. Low voltage transformer check The low voltage transformer is located on the P.C.B. Measuring condition: Input voltage: 120V / Frequency: 60Hz 2. Voltage Check - Key check point - Check method NOTE 1. Refer to Ciruit Diagram (point 4). 2. Secondary side voltage of the low voltage transformer chan[...]

  • Page 28

    MP1 MP2 Mesure point 28[...]

  • Page 29

    3. When there is no microwave oscillation 1) When touching START pad, oven lamp does not turn on. Fan motor do not rotate, but cook indicator in display comes on. Cause : RELAY 2 does not operate. refer to Circuit Diagram (point 3) - Check method 2) When touching START pad, oven lamp turns on. Fan motor and turntable rotate and cook indicator in di[...]

  • Page 30

    2. PCB CIRCUIT DIAGRAM 30[...]

  • Page 31

    NO NAME SYMBOL SPECIFICATION PART CODE Q TY 1 BUZZER BZ1 BM-20K 3515600100 1 2 C ARRAY CA1 7P(6) 102 M 50V CN6XB-102M 1 3 CAPACITOR ELEC EC1 50V RS 1 F CEXE1H109V 1 4 CPAPCITOR ELEC EC2 25V RSS 1000 F CEXF1E102V 1 5 CONNECTOR WAFER CN1 YW396-02AV 3519150520 1 6 CONNECTOR WAFER CN3 YW396-05AV 3519150510 1 7 CONNECTOR WAFER CN2 FCZ 254-11 441M367160 [...]

  • Page 32

    EXPLODED VIEW AND P ARTS LIST 1. DOOR ASSEMBL Y Refer to Disassembly and assembly 2. CONTROL P ANEL ASSEMBL Y Refer to Disassembly and assembly 3. T O T AL ASSEMBL Y 32[...]

  • Page 33

    REF NO PART CODE PART NAME DESCRIPTION Q’TY A00 3511715500 3511715510 DOOR AS KOR-180A0A 1 DOOR AS KOR-181G0A 1 B00 PKCPSWAC00 CONTROL-PANEL AS KOR-180A0A 1 PKCPSWAC50 CONTROL-PANEL AS KOR-181G0A 1 3510802400 1 F01 3516004100 CABINET SECC T0.6 3 F02 3516113100 SPECIAL SCREW T1 TRS LR4 POLE 4X10 SE MFZN 1 F03 3516112400 CAVITY AS KOR-180A0A KOR-18[...]

  • Page 34

    REF NO PART CODE PART NAME DESCRIPTION Q ’ TY F33 3513814300 LOCK POM BLACK 1 F34 3513601500 LAMP BL 125V 25W T25 C5A #187 1 F35 7121400611 SCREW TAPPING T2S PAN 4X6 MFZN 1 F36 3966820200 MOTOR SYNCRO 120V 2W GM-16-12F17 1 F37 3518905300 THERMOSTAT OFF:75 ON:65 H #187 NB 1 F38 3513003400 HOLDER THERMOSTAT PBT 1 F39 7272400811 SCREW TAPTITE TT3 TR[...]

  • Page 35

    DAEWOO ELECTRONICS CO., L TD. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC” PRINTED D A TE: DEC, 200 1 S/M NO. : R180A0A002[...]