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S/M No. : R631G0A003
Service Manual
Microwave Oven
Model: KOR-631G0A
KOR-631H0A
KOR-631G9A
KOR-631H9A
KOR-861G0A
KOR-861H0A
Aug. 2003
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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 lat
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SAFETY AND PRECAUTIONS CAUTION This device is to be Serviced only by Properly Qualified Service Personel. 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 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 CO
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SPECIFICATIONS MODEL KOR-631G/H KOR-631G/H9A KOR-861G/H POWER SUPPLY 120V~60Hz, SINGLE PHASE WITH GROUNDING MICROWAVE 1200W 1000W 1000W POWER GRILL CONSUMPTION COMBINATION MICROWAVE ENERGY OUTPUT 800W 700W 900W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS (W X H X D) 465x279x360 mm (18.3x11.0x14.2 in) 495x294x388 mm (19.5x11.6x15.3 in) CAVITY DIMENSIONS (W X H X D) 290x211x306 mm (11.4x8.3x12.0 in) 320x228x388 mm (12.6x9.0 x 13.3 in) NET WEIGHT Approx. 13 kg (28.66 Ibs.) Approx. 14 kg (30.9 Ib
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EXTERNAL VIEW 1. OUTER DIMENSION(KOR-631G/H, 631G/H9/KOR-861G/H) 465/495 360/ 388 4 279/294 279/294
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2. FEATURE DIAGRAM 1. DOOR SEAL Door seal maintains the microwave within the oven cavity and prevents microwave leakage. 2. DOOR HOOK When the 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 screen. 4. SPATTRSHIELD Protects the microwave outlet from splashes of cooking foods. 5. OVEN LAMP Automatically turns on during ove
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3. CONTROL PANEL 1) KOR-631G0A/631G9A 2) KOR-861G0A 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 cooking. 7. Auto Defrost – Used to defrost foods. (for weight) 8. Power
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3. CONTROL PANEL 1) KOR-631H0A/631H9A/861H0A 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. More – Used to add time to cooking. 5. Less – Used to remove time from cooking. 6. Auto Defrost – Used to defrost foods. (for weight) 7. Power – Used to set power level. 8. Defrost – Used to defrost foods. (for time) 9. Kitchen Timer
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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 be overheated and, eventually, cause oven failure. 3. Away from radio, and TV sets Poor television reception and radio interference may result if the oven is located close to a TV, radio, antenna, or feeder and so on. 4. Away from heating appliances and water taps Keep
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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. Close the door securely. 4. When the oven door is opened, the light turns off. 5. The oven door can be opened at any time during operation by touching the door release button on the control panel. The oven will automatically shut off. To restart the oven, close the
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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 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 observe the following precautions carefully. 1. Always remove the power plug from the outlet before servicing. 2. Use an insulated screwdriver and ware rubb
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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. NOTE : After replacing the door assembly, perform a check of correct alignment with the hinge and cavity front plate. 11
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4 Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr) 3. To remove door parts. 1) KOR-631G0A/631H0A/631H9A/631G9A REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK A01 3512203870 FRAME DOOR ABS SG-175, SG-0760B 1 A02 3517006180 BARRIER-SCREEN*0 SAN T1.5 1 A03 3515304610 SUPPORTER BARR-S
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(1) Remove the gasket door from door weld as. (2) Remove the barrier screen inner from door 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 supporter barrier screen outer from door frame. (7) Remove the barrier screen outer from door frame. (8) Reverse the above steps for reassembly. 4. Method to reduce the gap between the door seal and the oven front surface. (1) To reduce gap located on
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4 Caution: In this Service Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information, please refer to PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr) 5. To remove control panel parts. 1) KOR-631G0A/631H0A/631H9A/631G9A REF NO. PART CODE PART NAME DESCRIPTION Q’TY REMARK 3518521000 SWITCH MEMBRANE KOR-631G0A/9A 1 B01 3518521010 SWITCH MEMBRANE K
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1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assembly. 2) Remove the door open lever from the control panel. 3) Remove four screws which secure the PCB assembly to control panel. 4) Disconnect membrane tail from the connector of the PCB assembly. 5) Detach membrane from the control panel. 6) Remove door open button and button spring from the control panel. 7) Reverse the above steps for reassembly. 6. To remove high voltage capacit
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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. 6) Reverse the above steps for reassembly. 9. To remove H.V.transformer. 1) Remove four screws holding the H.V.transformer. 2) Remove the H.V.transformer. 3) Reverse the above steps for reassembly. 16
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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. If the door is not closed properly, the oven will not operate. When the door is closed, the hook pushes the button of the microswitch. Then th
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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. To do otherwise may result in a false reading or damage to your meter. NOTE : When electric parts are c
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CONDITION CHECK RESULT CAUSE REMEDY Replace No Outlet has Defective mag- Check continuity of magnetron Continuity proper volt- netron age Fuse does not Replace blow. No Check continuity of Open power sup- Continuity power supply cord ply cord Replace Normal Defective touch control circuit Replace Malfunction of sec- Display do not shown ondary interlock countdown switch NOTE All these switches must be replaced at the same time, please refer to “Interlock Mechanism And Adjustment”. (TROUBLE 2) D
