Related Manuals for Daewoo KOR-634R0S
Summary of Contents for Daewoo KOR-634R0S
- Page 1 Service Manual Microwave Oven Model : KOR-634R0S KOR-638R0S DAEWOO ELECTRONICS CO., LTD. http://svc.dwe.co.kr...
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Page 2: Table Of Contents
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE 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 micro- wave 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: Safety And Precautions
SAFETY AND 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 MODEL KOR-634R0S, KOR-638R0S POWER SUPPLY 230V~50Hz, SINGLE PHASE WITH EARTHING POWER CONSUMPTION MICROWAVE 1,200 W MICROWAVE ENERGY OUTPUT 800W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS (W X H X D) 465 x 279 x 360 mm (18.3 x 11.0 x 14.2 in) CAVITY DIMENSIONS (W X H X D) 290 x 220 x 306 mm (11.4 x 8.7 x 12.0 in.) -
Page 5: External View
EXTERNAL VIEW 1. OUTER DIMENSION... -
Page 6: Feature Diagram
2. FEATURE DIAGRAM 1. DOOR SEAL 5. OVEN LAMP Door seal maintains the microwave within the oven Automatically turns on during oven operating. cavity and prevents microwave leakage. 6. SAFETY INTERLOCK SYSTEM 2. DOOR HOOK 7. CONTROL PANEL When the door is closed, it will automatically lock shut. 8. -
Page 7: Control Panel
3. CONTROL PANEL KOR-634R 1. Display — Cooking time, power level, indicators and 6. Dial knob — Used to set time and weight. present time are displayed. 7. Stop/Clear — Used to stop the oven operation or to 2. Power — Used to set power level. erase all entries. - Page 8 KOR-638R KOR-638K Stop/ Clear Auto Cook Defrost 1. Dinner Plate 2. Soup 3. Beverage 4. Fresh Vegetable Power Clock M/W Def. Lock Auto Cook Start Easy Cook 1. Display — Cooking time, power level, indicators and 6. Dial knob — Used to set time and weight. present time are displayed.
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Page 9: Installation
➢ This appliance is supplied with cable of special type, which, if samaged, must be repaired with cable of same type. Such a cable can be purchased from DAEWOO and must be installed by a Qualified Person. 6. Examine the oven after unpacking for any damage such as: A misaligned door, broken door or a dent in cavity. -
Page 10: Operations And Functions
OPERATIONS 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. -
Page 11: Disassembly And Assembly
DISASSEMBLY AND ASSEMBLY Cautions to be observed when trouble shooting. Unlike many other appliances, the microwave oven is high-voltage, high-current equipment. It is completely safety 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 observe the following precautions carefully. - Page 12 1. To remove cabinet 1) Remove three screws on cabinet back. 2) Push the cabinet backward. 2. To remove 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.
- Page 13 3. To remove door parts. KOR-634R DOOR ASSEMBLY KOR-634R0S : 3511712140 REF NO. PART CODE PART NAME DESCRIPTION Q TY REMARK 3512203850 FRAME DOOR ABS XR-401, H-2938 3517005620 BARRIER-SCREEN*O TEMP GLASS T3.2 3515204100 STOPPER HINGE*T AS KOR-63150S 3511706120 DOOR PAINTING AS...
- Page 14 BARRIER-SCREEN*O PMMA T1.5 DECORATOR DOOR ABS SG-175 SG-0760D 3511603810 ABS SG-175 SG-0760D 3512205260 FRAME DOOR 3515204110 KOR-636T1S STOPPER HINGE*T AS KOR-634R0S 3511706120 DOOR PAINTING AS BARRIER-SCREEN *I 3517002800 PE T0.1 GASKET DOOR 3512300210 SCREW TAPPING T2S TRS 4*12 MFZN 7122401211...
- Page 15 (1) Remove the gasket door from door weld as. (2) Remove the barrier screen inner from weld as. (3) Remove the door frame from door weld as. (4) Remove the stopper hinge top from door weld as. (5) Remove the spring and the hook. (6) Remove the barrier screen outer from door frame.
- Page 16 5. To remove control panel parts. KOR-634R CONTROL PANEL ASSEMBLY KOR-634R0S : PKCPSWZYOO REF NO. PART CODE PART NAME DESCRIPTION Q TY REMARK 3513404620 KNOB VOLUME ABS XR-401, H-2938 3511604510 DECORATOR C-PANEL STS T0.6 3516003910 SPECIAL DOUBLE TAPE SI-161 T0.15...
- Page 17 KOR-638R B05 B06 CONTROL PANEL ASSEMBLY KOR-638R0S : PKCPSWETIO REF NO. PART CODE PART NAME DESCRIPTION Q TY REMARK 3513405280 KNOB VOLUME ABS SG-175, SG-0760D 3515501570 WINDOW DISPLAY KOR-638K 3511604580 DECORATOR C-PANEL ABS SG-175, SG-0760D 3516726220 CONTROL PANEL ABS SG-175, SG-0760D 3516909800 BUTTON FUNCTION-B ABS SG-175, SG-0760D...
- Page 18 6. To remove high voltage capacitor. 1) Remove a screw which secure the grounding ring terminal of the H.V. diode and the capacitor holder. 2) Remove the H.V. diode from the capacitor holder. 3) Reverse the above steps for reassembly. N High voltage circuit wiring 7.
- Page 19 8. To remove wind guide assembly. 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.
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Page 20: Interlock Mechanism And Adjustment
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 door. -
Page 21: Trouble Shooting Guide
TROUBLE SHOOTING 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 transformer, disconnect one lead wire from these parts and check continuity with the AC plug removed. - Page 22 Condition Check Result Cause Remedy Outlet has Check continuity of Defective magnetron Replace proper voltage. magnetron Continuity Fuse does not blow. Defective line filter Check continuity of Replace Continuity board noise filter board Open power supply Check continuity of Replace cord Continuity power supply cord...
- Page 23 (TROUBLE 3) No microwave oscillation even though fan motor rotates. Condition Check Result Cause Remedy Check continuity Continuity Defective high Replace microwave of high voltage voltage oscillation capacitor transformer terminals with wires removed Check continuity of Continuity in Defective high Replace high voltage rectifi- voltage rectifier...
- Page 24 (TROUBLE 4) The following visual conditions 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.
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Page 25: Measurement And Test
MEASUREMENT AND TEST 1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT 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 1000–5cc of potable water. -
Page 26: Microwave Radiation Test
2. MICROWAVE RADIATION TEST CAUTION : 1. Make sure to check the microwave leakage before and after repair of adjustment. 2. Always start measuring of an unknown field to assure safety for operating personnel from microwave energy. 3. Do not place your hands into any suspected microwave radiation field unless the safe density level is known. 4. -
Page 27: Component Test Procedure
3. COMPONENT TEST PROCEDURE ¥ 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. -
Page 28: Wiring Diagram
WIRING DIAGRAM... -
Page 29: Printed Circuit Board
PRINTED CIRCUIT BOARD 1. CIRCUIT CHECK PROCEDURE 1. Low Voltage Transformer check ¥ The low voltage transformer is located on the P.C.B. ¥ Measuring condition: input voltage : 230V/Frequency : 50Hz Terminal Voltage LOAD NO LOAD AC 25.8 V AC 28.4 V NOTE : 1. - Page 30 Measure Point...
- Page 31 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 POINT STATE...
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Page 32: Pcb Circuit Diagram
2. PCB CIRCUIT DIAGRAM... -
Page 33: Location No
3. P.C.B. LOCATION NO. NAME NAME SYMBOL SPECIFICATION PART CODE Q’TY REMARK PCB MAIN M166 82 X 146.8 3514321140 MAIN PCB BUZZER BM-20K 3515600100 C ARRAY 5P(4) 1000PF M 50V CN4XB-102M CAPACITOR CERA 102 50V Z AXIAL CCZB1H102K CAPACITOR CERA C1~5, C7 104 50V Z AXIAL CCZF1H104Z... -
Page 34: Exploded View And Parts List
EXPLODED VIEW AND PARTS LIST 1. DOOR ASSEMBLY Refer to Disassembly and assembly. 2. CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly. 3. TOTAL ASSEMBLY... - Page 35 NAME PART CODE PART NAME DESCRIPTION Q’TY DOOR AS Refer to disassembly and assembly CONTROL PANEL AS Refer to disassembly and assembly 3510801310 CABINET PCM T0.36 GE 7112401011 SCREW TAPPING T1 TRS 4*10 MFZN 3516109000 CAVITY WELD AS CAVITY WELD AS 3516109600 CAVITY JOINT AS CAVITY JOINT AS...
- Page 36 DAEWOO ELECTRONICS CO., LTD. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: DAEWOOELEC S/M NO. : R634R0S002 PRINTED DATE: DEC, 2001...