Page 2 - TABLE OF CONTENTS
PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE 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 microwave so...
Page 3 - SAFETY AND PRECAUTIONS
SAFETY AND PRECAUTIONS CAUTION : This Device is to be Serviced Only by Properly Qualified Service Personnel. Consult the ServiceManual for Proper Service Procedures to Assure Continued Safety Operation and for Precautionsto be Taken to Avoid Possible Exposure to Excessive Microwave Energy. 1. FOR SA...
Page 4 - SPECIFICATIONS
SPECIFICATIONS 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) 3...
Page 5 - EXTERNAL VIEW
Page 9 - INSTALLATION; Away from heating appliances and water taps; Examine the oven after unpacking for any damage such as:
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 overheatedand, eventually, cause oven failure. 3. Away from radio, ...
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. Close the door securely.4. The oven door can be opened at any time d...
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 safeduring normal operation. However, carelessness in servicing the oven can result in an electric shock or possibledan...
Page 16 - High voltage circuit wiring
NOTE : Never install the magnetron without the metallic gasket plate which is packed with each magnetron toprevent microwave leakage. Whenever repair work is carried out on magnetron, check the microwaveleakage. It shall not exceed 4mW/cm 2 for a fully assembled oven with door normally closed. 6. To...
Page 18 - 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 whenthe door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave. (1) Primary interlock switch...
Page 19 - 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 tranformer...
Page 23 - MEASUREMENT AND TEST; MEASUREMENT OF THE MICROWAVE POWER OUTPUT
MEASUREMENT AND TEST 1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT Microwave output power can be checked by indirectly mmeasuring the temperature rise of a certain amount of waterexposed to the microwave as directed below. PROCEDURE 1. Microwave power output measurement is made with the microwave ove...
Page 24 - MICROWAVE RADIATION TEST
2. MICROWAVE RADIATION 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 ...
Page 25 - 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 ...
Page 26 - WIRING DIAGRAM
Page 27 - PRINTED CIRCUIT BOARD; CIRCUIT CHECK PROCEDURE
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: 120V / Frequency: 60Hz 2. Voltage Check - Key check point - Check method NOTE 1. Refer to Ciruit Diagram (point 4).2. Secondary si...
Page 30 - PCB CIRCUIT DIAGRAM
Page 32 - EXPLODED VIEW AND PARTS LIST; CONTROL PANEL ASSEMBLY
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 32