Page 2 - TABLE OF CONTENTS
2 PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVE ENERGY (a) Do not operate or allow the oven to be operated with the door open. (b) Mark the following safety checks on all ovens to be serviced before activating the magnetron or other micro- wa...
Page 3 - PROPER USE AND SERVICE PRECAUTIONS
3 PROPER USE AND SERVICE PRECAUTIONS CAUTION : THIS DEVICE IS TO BE SERVICED ONLY BY PROPERLY QUALIFIED SERVICE PERSONNEL. CONSULT THE SERVICE MANUAL FOR PROPER SERVICE PROCEDURES TO ASSUREC O N T I N U E D S A F E T Y O P E R A T I O N A N D F O R P R E C A U T I O N S T O B E T A K E N T O A V O I...
Page 4 - SPECIFICATIONS
4 SPECIFICATIONS ITEM SPECIFICATION POWER SUPPLY 120V~60Hz, SINGLE PHASE WITH EARTHING POWER CONSUMPTION 920 W MICROWAVE OUTPUT POWER 600 W (IEC 705) (FULL MICROWAVE POWER) FREQUENCY 2450 MHz OUTPUT DIMENSIONS (W X H X D) 465 X 274 X 360 mm (18.3 X 10.8 X 14.2 in.) CAVITY DIMENSIONS (W X H X D) 290 ...
Page 5 - FEATURES DIAGRAM
¤ Safety Interlock System ¤Ł Door Viewing Screen - Allows viewing of food. The screen is designed so that light can pass through, but not themicrowave. ¤Ø Door Hook - When the door is closed, it will automatically shut. If the door is opened while the oven is operating,the magnetron will immediately...
Page 6 - 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. 3 Away from radio, and TV sets Poor televi...
Page 7 - OPERATION
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 mustalways be in place during cooking. 3 Close the door securely. 4 Choose cooking power by setting V.P.C. Knob to the desired position. ...
Page 8 - PROCEDURE; MEASUREMENT OF THE MICROWAVE OUTPUT POWER
Microwave output power can be checked by indirectly measuring the temperature rise of a certain amount of water exposedto 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 p...
Page 9 - MICROWAVE RADIATION TEST
WARNING • Make sure to check the microwave leakage before and after repair of 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 i...
Page 10 - CL; SINGLE PHASE; TM
10 KOR-6115 WIRING DIAGRAM POWER SUPPLY : PRIMARY INTERLOCK SWITCH(UPPER) TIMER SWITCH TIMER ASS'Y V.P.C . FUSE INTERLOCK MONITOR SWITCH HIGH VOLTAGE TRANSFORMER H.V. CAPACITOR H.V. DIODE MAGNETRON WH LIVE RD BK WH NEUTRAL WH BK BL GY GY GY GY GY GY CL GM FM SECONDARY INTERLOCK SWITCH NOTE : RD : RE...
Page 12 - CIRCUIT DESCRIPTION
1. When the food is placed in the oven cavity and door is closed. • The contact of the interlock monitor switch open.• The contacts of the primary interlock switch and secondary interlock switch close. 2. When the timer is set to the time desired. • The contact of the timer switch close.• Oven lamp ...
Page 13 - MAGNETRON
13 HIGH VOLTAGETRANSFORMER H.V.CAPACITOR H.V. FUSE H.V. DIODE Fig. 2 MAGNETRON 3. When the door is opened during cooking. • Primary interlock switch and secondary interlock switch open to cut off the primary voltage to the high voltage transformer to stop microwave oscillation. • Fan motor, timer mo...
Page 14 - PRECAUTIONS FOR DISASSEMBLY AND REPAIR
ƒ¡ Cautions to be observed when trouble shooting. Unlike many other appliances, the microwave oven is a high-voltage, high-current equipment. It is completely safetyduring normal operation. However, carelessness in servicing the oven can result in an electric shock or possible dangerfrom a short cir...
Page 15 - DISASSEMBLY AND ASSEMBLY; To remove cabinet; To remove door assembly; To remove door parts
15 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 door assembly ¤Ø from top plate of cavity. (3) Remove the above for reassembly. 3. To remove door parts NOTE : A...
Page 17 - To remove control panel parts
17 5. To remove control panel parts (1) Remove the screw which secure the control panel, push up two snap fits and draw forward the controlpanel assembly. (2) Remove the door open lever ¤ from the control panel. (3) Remove two screws ¤Ł which secure the timer assembly ¤Ø . (4) Remove the timer assem...
Page 18 - To remove high voltage capacitor; To remove magnetron
6. To remove high voltage capacitor (1) Remove a screw ¤ which secure the grounding ring ring terminal of the H.V. diode ¤Ł and the capacitor holder ¤Ø . (2) Remove the H.V. diode ¤Ł from the capacitor ¤Ø . (4) Reverse the above steps for reassembly. High voltage circuit wiring 7. To remove magnetro...
Page 20 - Adjustment 1; INTERLOCK MECHANISM
20 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 When the door is closed, the ho...
Page 22 - TROUBLE SHOOTING GUIDE
22 TROUBLE SHOOTING GUIDE TROUBLEDOOR SHUT, TIMER SET BUT NO COOKING TAKES PLACE. Does the fan motor work when you shut the doorand turn the timer? Does 15A fuseblow? Check continuity of inter-lock monitor switch withdoor shuted. Check continuity of both interlocks w i t c h ’ s c o n t a c t a n d ...
Page 24 - COMPONENT TEST PROCEDURE; High voltage transformer
24 1. High voltage is present at the high voltage terminal of the 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 discha...
Page 25 - Interlock switches
6. Interlock switches • You can test continuity of safety interlocks and monitor switch by using switch tester or ohmmeter.• The switch operation is checked by zero/unlimited. the meter should indicate zero resistance. • The sequence of check is interlock monitor switch; primary and secondary interl...
Page 26 - EXPLODED VIEW AND PARTS LIST
26 NO PART NAME PARTS CODE Q’TY A01 BARRIER-SCREEN *O 3517003000 1 A02 FRAME DOOR 3512202500 1 A03 STOPPER HINGE *T 3515201000 1 A04 DOOR WELD AS 3511705500 1 A05 BARRIER-SCREEN *I 3517002800 1 A06 GASKET DOOR 3512300200 1 A07 HOOK 3513100700 1 A08 SPRING HOOK 3515101300 1 1. Door Assembly EXPLODED ...
Page 27 - Control Panel Ass’y
27 2. Control Panel Ass’y NO PART NAME PARTS CODE Q’TY B01 KNOB VPC 3513402600 1 B02 CONTROL PANEL 3512202000 1 B03 COUPLER VPC KNOB 3517400500 1 B04 SCREW TAPPINGT2S PAN 4X12 PW 7621401211 1 B05 KNOB 3513402500 1 B06 COUPLER TIMER 3517400400 1 B07 TIMER 3518203800 1 B08 SCREW TAPPING T2S PAN 4X12 P...
