DAEWOO ELECTRONICS KOR-61AP2S Service Manual
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DAEWOO ELECTRONICS KOR-61AP2S Service Manual

DAEWOO ELECTRONICS KOR-61AP2S Service Manual

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Service Manual
Microwave Oven
Model : KOR-61AP2S
DAEWOO ELECTRONICS CO., LTD.
OVERSEAS SERVICE DEPT.
KOR-81AP2S
KOR-61AP0S
KOR-81AP0S

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Summary of Contents for DAEWOO ELECTRONICS KOR-61AP2S

  • Page 1 Service Manual Microwave Oven Model : KOR-61AP2S KOR-81AP2S KOR-61AP0S KOR-81AP0S DAEWOO ELECTRONICS CO., LTD. OVERSEAS SERVICE DEPT.

  • Page 2: Table Of Contents

    PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPO- SURE TO EXCESSIVE MICROWAVE ENERGY (a) Do not operate or allow the oven to be operated with 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 as necessary : (1) Interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and latches (5) evidence of dropping or abuse.

  • Page 3: Proper Use And Service Precautions

    PROPER USE AND SERVICE PRECAUTIONS 1. For Safe Operation Damage that allows the microwave energy (that cooks or heats the food) to escape will result in poor cooking and may cause serious bodily injury to the operator. IF ANY OF THE FOLLOWING CONDITIONS EXIST, OPERATOR MUST NOT USE THE APPLIANCE. (Only a trained service personnel should make repairs.) 1) A broken door hinge.

  • Page 4: Specifications

    SPECIFICATIONS SPECIFICATION ITEM KOR-61AP0S/2S KOR-81AP0S/2S POWER SUPPLY 230V 50Hz, SINGLE PHASE WITH EARTHING POWER CONSUMPTION 1200W 1350W MICRO WAVE OUTPUT POWER 800W 900W FREQUENCY 2450 MHz OUTSIDE DIMENSIONS (WXHXD) 465 X 274 X 364 mm 495 X 289 X 394 mm CAVITY DIMENSIONS(WXHXD) 290 X 200 X 290 mm 320 X 225 X 330 mm...

  • Page 5: Feature Diagram

    FEATURES DIAGRAM STAGE DEFROST AUTO WEIGHT TIME START LOCK CUPS MICROWAVE OVEN RANGE KOR-61AP Dinner Beverage plate 1.Baked Potato 2.Fresh Vegetable frozen 3.Soup Pizza 4.Fish Fillets Menu 5.Meat Loaf M-Low Weight Feeding bottle M-Hi High Clock/ A.Start Auto Def. 100g 1000g Stop / Start...

  • Page 6: Control Panel

    CONTROL PANEL STAGE DEFROST AUTO WEIGHT TIME START LOCK CUPS MICROWAVE OVEN RANGE KOR-61AP Dinner Beverage plate 1.Baked Potato 2.Fresh Vegetable frozen 3.Soup Pizza 4.Fish Fillets Menu 5.Meat Loaf M-Low Weight Feeding bottle M-Hi High Clock/ A.Start Auto Def. 100g 1000g Stop / Start...

  • Page 7: Installation

    INSTALLATION 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 overheat and, eventually, cause oven failure.

  • Page 8: Operation Procedure

    OPERATION PROCEDURE TO STOP THE OVEN WHILE THE OVEN IS OPERATING 1. Press PAUSE/CLEAR pad. • The PAUSE indicator starts blinking. • You can restart the oven by touching START pad. • Touch PAUSE/CLEAR pad once more to erase all instruction except clock. 2.

  • Page 9: Controls

    CONTROLS Setting the Clock When the oven is first plugged in, the display will flash “ : 0” and a tone will sound. If the AC power ever goes off, the display will flash “ : 0” when the power comes back on. THIS HAPPENS...
  • Page 10 Weight Defrosting WEIGHT DEFROST lets you easily defrost food by eliminating guesswork in determining defrosting time. The min- imum weight for WEIGHT DEFROST is 200 grams. The maximum weight for WEIGHT DEFROST is 3000 grams. Follow the steps below for easy defrosting. DO THIS THIS HAPPENS...
  • Page 11 Time Defrosting When TIME DEFROST is selected, the automatic cycle divides the defrosting time into periods of alternating defrost and stand times by cycling on and off. DO THIS THIS HAPPENS... The WEIGHT DEFROST indicator STAGE DEFROST AUTO AUTO START WEIGHT TIME lights and “0”...
  • Page 12 Cooking in One Stage DO THIS THIS HAPPENS... The STAGE1 indicator lights and DEFROST AUTO M-HI STAGE START WEIGHT TIME “P-80” is displayed. 1. Touch M-HI pad. @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ @ @...
  • Page 13 Cooking in Two Stages For best results, some recipes call for one Power Level for a certain length of time and another power level for a different length of time. Your microwave oven can be set to change from one to another. DO THIS THIS HAPPENS...
  • Page 14 Weight Defrosting and Cooking in Two Stages Some recipes require frozen foods to be thawed before cooking. This oven can be programmed to automatically defrost foods before cooking. DO THIS THIS HAPPENS... The WEIGHT DEFROST indicator STAGE DEFROST AUTO AUTO START WEIGHT TIME...
  • Page 15 DO THIS THIS HAPPENS... The STAGE2 indicator lights and M-HI DEFROST AUTO STAGE START WEIGHT TIME “P-80” is displayed. 5. Touch M-HI pad. LOCK CUPS To set the time to EXAMPLE : 1HOUR 10MIN 1MIN DEFROST AUTO STAGE “4:20”. START WEIGHT TIME •...
  • Page 16 Auto Start Allows you to program cooking to start at a time you select. The food will automatically start cooking at the desired time. Program is able up to 2 stages (no acceptable DEFROST) DO THIS THIS HAPPENS... 1. Program the desired power level and cooking time. The AUTO START indicator lights STAGE DEFROST...
  • Page 17 To Check Auto Start Time Once you have correctly programmed the oven for AUTO START, the present time will appear on the display. DO THIS THIS HAPPENS... The programmed AUTO START CLOCK/ time A.START will appear on the display for 3 sec- onds.
  • Page 18 ƒNFROZEN PIZZA ƒN ¡ 200g : Touch FROZEN PIZZA once. ¡ 300g : Touch FROZEN PIZZA twice within 1.5 seconds. @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @...
  • Page 19 Auto Cook (Menu & Weight) Auto cook allows you to cook or reheat many of your favorite foods by repeatedly touching menu pad. After the menu selection, touch chosen pad until number in display is same as desired quantity to cook. DO THIS THIS HAPPENS...
  • Page 20 Feeding Bottle This key is for feeding bottle disinfection effect. At first, detach the nipple from the bottle and pour the 30cc water into each bottle, arrange the bottle symmetrically on the glass tray and operate. DO THIS THIS HAPPENS... When you touch FEEDING BOT- STAGE DEFROST...

  • Page 21: Interlock Mechanism

    INTERLOCK MECHANISM FUNCTIONS AND ADJUSTMENTS The door lock mechamism is a device 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.
  • Page 22 (2) Secondary interlock switch and interlock monitor switch When the door is closed, the hook pushes the push lever down ward, and push lever presses the button of the interlock monitor swich to bring it under “off”, condition and presses the button of the secondary interlock switch to bring it under “on”, condition.

  • Page 23: Precautions For Disassembly And Repair

    PRECAUTIONS FOR DISASSEMBLY AND REPAIR – Cautions to be observed when trouble shooting. Unlike many other appliances, the microwave oven is a high-voltage, high-current equipment. It is completely safety during normal operation. However, carelessness in servicing the oven can result in an electeric shock or possible danger from a short circuit.

  • Page 24: Disassembly And Assembly

    DISASSEMBLY AND ASSEMBLY 1. To remove cabinet. Remove three screws on cabinet back. 2. To remove door assembly. 1) Remove two screws ¤ which secure the stopper hinge top. 2) Remove the stopper hinge top ¤Ł and door assembly ¤Ø from top plate of cavity.
  • Page 25 (1) Remove the gasket door (A06) from door painting ass’y (A04) (2) Remove the barrier screen inner (A05) from door painting ass’y (A04). (3) Remove the door frame (A01) from door weld ass’y (A04). (4) Remove the hook spring (A08) and the hook (A07). (5) Remove the barrier screen outer (A02).
  • Page 26 5. To remove control panel assembly. (1) Remove a screw shich secure the control panel push up two snap fits and draw forward the control panel assem- bly. (1) Remove a screw holding control panel assembly to the oven front plate. (2) Remove the door open lever (B05) from the control panel.
  • Page 27 6. To remove high voltage capacitor. (1) Remove a screw ¤ which secure the grounding ring termi- nal of the H.V. diode ¤Ł and the capacitor holder ¤Ø . (2) Remove the capacitor holder ¤Ø with the H.V. capacitor ¤Œ . (3) Reverse the above steps for reassembly.
  • Page 28 @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ?

  • Page 29: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE Following the procedures below to check if the oven is defective or not. 1. Check grounding before checking trouble. 2. Be careful of the high voltage circuit. 3. Discharge the high voltage capacitor. (see page 23) 4. When checking the continuity of switches or of the high voltage transformer, disconnect one lead wire from these parts and then check cintinuity with the AC plug removed.
  • Page 30 2. Type of encoding and pad names. 10 sec 1 min 10 min HIGH M-HI M-LOW FROZEN SPEEDY BEVERAGE PIZZA COOK DINNER FEEDING MORE START LESS PLATE BOTTLE STOP/ CLOCK/ AUTO WEIGHT MENU CLEAR A.START DEFROST Fig. 4 Key Matrix The membrane keyboard consists of 21 keys whose configurations are described above and provide 11 pad ter- minations to be connected to the touch control circuit as Fig.
  • Page 31 (TROUBLE 2) DIGITAL READOUT DISPLAY DOES NOT SHOW PROGRAMMING, EVEN IF THE MEM- BRANE KEYBOARD IS PROGRAMMED BY TOUCHING PROPER PADS. CONDITION CHECK RESULT CAUSE REMEDY Malfunction Replace Display does not Check each pad for Normal of touch control control show programming continuity of the circuitry of...
  • Page 32 (TROUBLE3) THE OVEN NOT OPERATE AT ALL; DISPLAY WINDOW DOES NOT DISPLAY ANY FIG- URES AND ANY INPUTS CAN NOT BE ACCEPTED. CAUSE REMEDY CONDITION CHECK RESULT Malfunction of Replace Primary 12A fuse Check continuity Continuity Interlock moni- Interlock Switch blows Interlock Monitor and Secondary...
  • Page 33 CAUSE REMEDY CONDITION CHECK RESULT Outlet has Check continuity Defective oven Replace proper of oven thermostat thermostat. Continuity voltage (For KOR-61AP0S Fuse does KOR-81AP0S) not open Check continuity Open power Replace of power supply supply cord. Continuity cord. Defective touch Replace Normal control circuit...
  • Page 34 CAUSE REMEDY CONDITION CHECK RESULT Check continuity Turn table motor, Open winding Replace of primary wind- Conntinuity fan motor and oven lamp turn of high voltage on for a transformer and second when touch control the start pad Defective touch Normal Replace circuit...
  • Page 35 (TROUBLE 6) MICRWAVE OUTPUT POWER IS LOW . FIRST OF ALL, CHECK IF OUTPUT POWER IS REALLY LOW FOLLOWING “MEASURE MENT OF THE MICROWAVE OUTPUT POWER” ON PAGE 24. CAUSE REMEDY CONDITION CHECK RESULT Customer Decrease in Output Check the power Lower than education power source...

  • Page 36: Measurement Of The Microwave Output Power

    MEASUREMENT OF THE MICROWAVE OUTPUT POWER Microwave output power can be checked by indirectly measuring 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 its maximum microwave power setting with a load of 1,000±5cc of potable water.

  • Page 37: Microwave Radiation Test

    MICROWAVE RADIATION TEST WARNING • Make sure to check the microwave leakage before and after repair or adjustment. • Always, start measuring of an unknown field to assure safety for operating personnel from microwave energy. • Do not place your hands into any suspected microwave radiation field unless the safe density level is known. •...

  • Page 38: Component Test Procedure

    COMPONENT TEST PROCEDURE 1. High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle. 2. It is neither necessary nor advisable to attempt measurement of the high voltage. 3. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor (see page 35).

  • Page 39: Safety Interlock Continuity Test

    SAFETY INTERLOCK CONTINUITY TEST • Disconnect the oven from the power supply. • You can test continuity of safety interlocks and monitor switch by using switch tester or ohmmeter. • The switch operation is checked by the lamp on/off of resistance zero/unlimited. •...

  • Page 40: Wiring Diagram

    WIRING DIAGRAM for KOR-61AP0S, KOR-81AP0S Fig. 1...
  • Page 41 WIRING DIAGRAM for KOR-61AP2S, KOR-81AP2S Fig. 1...
  • Page 42 WIRING DIAGRAM (SLOW ACTING RELAY) for KOR-61AP2S, KOR-81AP2S Fig. 1...

  • Page 43: Circuit Description

    CIRCUIT DESCRIPTION MICROWAVE COOKING TIME COOKING 1. When the food is placed inside the oven and door is closed. 1) The low voltage transformer supplies the necessary voltage to the touch control circuit when the power cord is plugged in. 2) The contacts of the interlock monitor switch open.
  • Page 44 HIGH VOLTAGE TRANSFORMER H.V. FUSE H.V. CAPACITOR 2S TYPE KOR-65A52S KOR-81A52S MAGNETRON H.V. DIODE Fig. 2 The touch control circuit controls the ON-OFF time of RELAY “1” in order to vary the output power of the microwave oven from “power level p-20“ to “P-H1 (100%) power”. One complete ON and OFF cycle of the RELAY “1”...
  • Page 45 OUTPUT POWER POWER LEVEL RELAY “1” TURN ON, OFF TIME AGAINST FULL POWER 5/29(17%) M-LOW 11/29(38%) 17/29(59%) M-HI 23/29(79%) HIGH 29/29(100%) Fig. 3 AUTO DEFROST CYCLE When 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.

  • Page 46: Printed Circuit Board

    PRINTED CIRCUIT BOARD 1. CIRCUIT CHECK PROCEDURE 1) Low Voltage Transformer (DMR-604FS) Check. The low voltage transformer is located on the P.C.B. Measuring condition : Input voltage ; 230V Measuring condition : Frequency ; 50Hz Voltage LOAD NO LOAD Terminal 6 - 7 8 - 10 2.4V...
  • Page 47 3) When display has some trouble CAUSE MEASUREMENT RESULT REMEDY Poor contact between Check the voltage Fix the PIN 1 & 25 2.4 VAC P.C.B. and display filament. of PIN 1 & PIN 25. on the P.C.B. Defective Display Refer to “The display Replace P.C.B.
  • Page 48 Fig 3. Measurement Point...
  • Page 49 CHECK METHOD POINT STAGE RELAY “2” ON -24VDC RELAY “2” OFF (2) When touching “START” pad, oven lamp turns on. Fan motor and turntable rotate and cook indicator in display comes on. * Cause : RELAY “1” does not operate. -24V CHECK METHOD POINT...
  • Page 50 6) When the digital clock does not operate properly. POINT WAVEFORM T ; 16.67 ms T : 20ms -14V If clock does not keep exact time, you must check resistor R11, R17.
  • Page 51 2. P.C.B CIRCUIT DIAGRAM AND PART INFORMATION 1) P.C.B. Circuit Diagram @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e @ @ @ @ @ @ @ @ e ? @ @ @ @ @ @ @ @ ? e...
  • Page 52 1. Transistor (PNP Type) Q 1, 3-5 Emitter Collector Base 2. Diode and zener diode DIODE CATHODE (K) ANODE (A) D1-7, 9-14 ZENER CATHODE (K) ANODE (A) ZD 1-3 DIODE...
  • Page 53 3. PRINTED CIRCUIT BOARD MP-1 MP-2 MP-3...
  • Page 54 4. P.C.B. LOCATION NO. PART NAME REF NO. SPECIFICATION PART CODE Q¡ ¡ fl fl TY RESISTOR R10, 12, 13, 18 4.7kΩ, 1/6W, RD-AZ472J- RESISTOR 200Ω, 1/6W, RD-AZ201J- RESISTOR R5, 8 20kΩ, 1/6W, RD-AZ203J- RESISTOR 1MΩ, 1/6W, RD-AZ105J- RESISTOR R2, 4, 6, 9, 15, 20 1kΩ, 1/6W, RD-AZ102J-...

  • Page 55: Exploded And Parts List

    EXPLODED AND PARTS LIST 1. Door Assembly DOOR AS : 3511707990(KOR-61AP) 3511708750(KOR-81AP) REF NO. PART NAME PART CODE DESCRIPTION Q’TY REMARKS 3512202050 KOR-61AP FRAME DOOR ABS H-2938 XR-401 3512202250 KOR-81AP 3517003070 KOR-61AP BARRIER-SCREEN *O PETP T0.188 3517003160 KOR-81AP STOPPER HINGE *T AS 3515201500 KOR-61150S 3511706100...
  • Page 56 2. Control Panel Ass’y C-PANEL AS : PKCPSWUH00(KOR-61AP) PKCPSWWC00(KOR-81AP) REF NO. PART NAME PART CODE DESCRIPTION Q’TY REMARKS 3518519750 KOR-61AP0S KOR-61AP SWITCH MEMBRANE 3518520120 KOR-81AP0S KOR-81AP 3516710760 KOR-61AP ABS H-2938 XR-401 CONTROL-PANEL 3516710960 KOR-81AP PKMPMSCQ00 KOR-610P0S KOR-61AP PKMPMSCQ10 KOR-610P0S(TÜV) for Germany PCB MAIN MANUAL AS PKMPMSRJ00 KOR-810P0S...
  • Page 57 3. Main Unit KOR-61AP0S, KOR-81AP0S...
  • Page 58 TAPPING 7112401011 3516003700 TAPPING 7122401211 TAPPING 7112401011 T1 TRS 4X10 MFZN 3516002700 7112401011 TAPPING 7272400811 TAPTITE 3516003700 7112401011 TAPPING TAPTITE 7272400811 TAPPING 7122401211 7121400611 LOCK AS 3513806810...
  • Page 59 KOR-61AP2S, KOR-81AP2S...
  • Page 60 for Germany (TÜV) (TÜV) for Germany For Germany 3513808840 KOR-811Q0S LOCK AS 3513806810 KOR-811Q0S For Germany R CEMENT 10W 20 OHM K RX10H200K-...

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