Page 2 - TABLE OF CONTENTS
1 1 PRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLE EXPOSURETO 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 microwav...
Page 3 - SAFETY AND PRECAUTIONS; FOR SAFE OPERATION; contact the manufacturer immediately.; IMPORTANT; This oven is designed for counter-top use only.
2 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 andmay cause serious bodily injury to the operator.IF ANY OF THE FOLLOWING CONDITIONS EXIST, OPERATOR MUST NOT USE THE APPLIANCE.(Only a trained...
Page 4 - SPECIFICATIONS; MODEL
3 SPECIFICATIONS - POWER SELECTIONS* : KOG-371R/391R0S : 5 LEVELS. MODEL KOG-371G/H/R0S, KOG-374R/5R0S KOG-391G/H/R0S POWER SUPPLY 230~, 50Hz SINGLE PHASE WITH EARTHING MICROWAVE 1200W 1350W POWER CONSUMPTION GRILL 1050W 1050W COMBINATION 2200W 2350W MICROWAVE ENERGY OUTPUT 800W 900W MICROWAVE FREQU...
Page 5 - EXTERNAL VIEW
4 1. OUTER DIMENSION 1) KOG-371G/H0S, KOG-391G/H0S 465/495 279/294 360/388 2) KOG-376T1S, KOG-396T1S 3) KOG-373R0S, KOG-393R0S 365/392 465/495 279/294 EXTERNAL VIEW
Page 7 - SEFETY INTERLOCK SYSTEM; oven before the door is opened.
6 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEATING ELEMENT 4. OVEN CAVITY 5. SEFETY INTERLOCK SYSTEM 6. DOOR RELEASE BUTTON - By pushing this button the latch system cut off all circuits and stops...
Page 8 - placed on this tray for cooking.
7 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEATING ELEMENT 4. OVEN CAVITY 5. SEFETY INTERLOCK SYSTEM 6. CONTROL PANEL 7. METAL RACK 8. COUPLER - This fits over the shaft in the center of the ovens...
Page 10 - on this tray for cooking.
9 1. DOOR SEAL - Door seal maintains the microwave energy within the oven cavity and prevents microwave leakage. 2. REFLECTOR(Insulator Heater) 3. HEATING ELEMENT 4. OVEN CAVITY 5. SEFETY INTERLOCK SYSTEM 6. METAL RACK 7. COUPLER - This fits over the shaft in the center of the ovens cavity floor. Th...
Page 15 - minute by turning the dial knob, except defrosting)
14 1. Display - Cooking time, power level, indicators and present time are displayed. 2. Clock - Used to set clock. 3. Start/Easy Cook - Used to start operation, also for easy start (each press adds 30 seconds microwave cooking time). 4. Stop/Clear - Used to stop the operation or to delete the cooki...
Page 20 - INSTALLATION; • Check your local power source.
19 INSTALLATION 1. Steady, flat location This microwave oven should be set on a steady, flat surface.This microwave oven is designed for counter top use only. 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...
Page 21 - Touch Power pad; OPERATION AND FUNCTIONS
20 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 d...
Page 22 - DISASSEMBLY AND ASSEMBLY; Cautions to be observed when trouble shooting; (2) Warning about the electric charge in the high voltage capacitor.
21 DISASSEMBLY AND ASSEMBLY 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 ovencan result in an electric shock or possibl...
Page 40 - ) Remove a screw which secure the grounding ring; • High voltage circuit wiring; for a fully assembled oven with door normally closed.
39 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 PC...
Page 42 - securing the tray motor cover with screw.
41 10. To remove tray motor. (1) Remove the coupler in the cavity.(2) Turn the set upside down.(3) Cut the tray motor cover part from the base plate.(4) Remove the tray motor cover. (5) Remove a screw which secure the tray motor.(6) Remove the tray motor.(7) Reverse the above steps for reassembly ex...
Page 43 - NUT HEX
42 REF. NO PART CODE PART NAME DESCRIPTION QTY REMARK C01 7392500008 NUT HEX 6N-2-5 SUS 1 C02 3515000600 SPACER INSULATOR *I C377BD 2 C03 3513301100 INSULATOR HEATER SPP T0.8 1 C04 3512803400 HEATER 230V 1000W 1R67994001 1 C05 7002500613 SCREW MACHINE TRS 5X6 MFCR 1 C06 7002400413 SCREW MACHINE TRS ...
Page 44 - INTERLOCK MECHANISM AND ADJUSTMENT; (2) Secondary interlock switch and interlock monitor switch
43 INTERLOCK MECHANISM AND ADJUSTMENT The door lock mechanism is a device which has been specially designed to completely eliminate microwave radiationwhen the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage ofmicrowave. (1) Primary interlock swit...
Page 47 - TROUBLE SHOOTING GUIDE; CONDITION
46 TROUBLE SHOOTING GUIDE CONDITION CHECK Check continuity of magnetron Defective magnetron RESULT No Continuity CAUSE REMEDY Replace Outlet has proper voltage Fuse does not blow. CONDITION CHECK Check continuity of primary interlock switch Malfunction of primary interlock switch RESULT No Continuit...
Page 48 - (TROUBLE 3) No microwave oscillation even though fan motor rotates.
47 CONDITION CHECK Check continuity of high voltage fuse RESULT No Continuity Check continuity if high voltage capacitor terminals with wires removed Replace high voltage fuse Continuity CAUSE Defective high voltage transformer REMEDY Replace No microwave oscillation Check continuity of high voltage...
Page 50 - MEASUREMENT OF THE MICROWAVE POWER OUTPUT; PROCEDURE; MEASUREMENT AND TEST
49 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 oven supplied at rate...
Page 51 - MICROWAVE RADIATION TEST; Prepare Microwave Energy Survey Meter, 600cc glass beaker,
50 2. MICROWAVE RADIATION TEST PROCEDURE 1. Prepare Microwave Energy Survey Meter, 600cc glass beaker, and glass thermometer 100°C (212°F). 2. Pour 275cc ± 15cc of tap water initially at 20 ± 5°C (68 ± 9°F) in the 600 cc glass beaker with an inside diameter of approx. 95mm(3.5 in.). 3. Place it at t...
Page 52 - COMPONENT TEST PROCEDURE; High voltage transformer; once the capacitor charged.; High voltage diode; in the other
51 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 fr...
Page 53 - WIRING DIAGRAM
52 WIRING DIAGRAM (1) KOG-371G/H/R0S, KOG-391G/H/R0S, KOG-376T1S, KOG-374R/375R0S, KOG-373R/393R0S
Page 55 - CIRCUIT CHECK PROCEDURE; Low voltage transformer check; Terminal Voltage; CHECK POINT; NO LOAD
54 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 2. Voltage Check - Key check point - Check method NOTE1. Refer to Ciruit Diagram (point 4).2. Secondary side voltage of the lo...
Page 56 - Mesurement point
Page 73 - Low Voltage Transformer check
72 PRINTED CIRCUIT BOARD <KOG-374R0S, KOG-375R0S> 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 2. Voltage check • Key check point • Check method NO CHECK POINT REMA...
Page 84 - CONTROL PANEL ASSEMBLY; Refer to Disassembly and assembly
83 1. DOOR ASSEMBLY Refer to Disassembly and assembly 2. CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly 3. TOTAL ASSEMBLY EXPLODED VIEW AND PARTS LIST <KOG-371G/H/R0S, KOG-391G/H/R0S>