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Summary of Contents for DAEWOO ELECTRONICS KOG-3767
- Page 1 S/M No. : G37671S001 Service Manual Microwave Oven Model: KOG-3767 DAEWOO ELECTRONICS CO., LTD. http : //svc.dwe.co.kr Sep. 1999...
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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 w ith the door open. (b) M ake the following safety checks on all ovens to be serviced before activating the m agnetron or other m icrowave source, and m ake repairs as necessary: (1) Interlock operation, (2) Proper door closing, (3) S eal and sealing surfaces (arcing, wear, and other dam age), (4) Dam age 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 M O D E L K O G -3767 P O W E R S U P P LY 230V ~50Hz, S IN G LE P HA S E W IT H E ART H IN G P O W E R M IC R O W AV E 1200W C O N S U M PT IO N... -
Page 5: External View
EXTERNAL VIEW 1. OUTER DIMENSION (KOG-3767/3967) Fig2. Side view Fig1. Front view... -
Page 6: Feature Diagram
EXTERNAL VIEW 2. FEATURE DIAGRAM 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) Safety interlock system 6) Knob V.P.C - Used to select a microwave power level. 7) Knob timer - Used in setting cooking time for all functions. -
Page 7: Installation
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, eventually, cause failure. -
Page 8: Operations And Functions
• To set MICROWAVE cooking Set the variable power selector to the desired power level. SYM BOL POWER LEVEL APPROXIMATE PERCENTAGE OF POWER KOG-3767 KOG -3967 HIG H M A X M A X 100 %... -
Page 9: 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 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. - Page 10 DISASSEMBLY AND ASSEMBLY 1. To remove cabinet (1) Remove three screws on cabinet back. (2) Push the cabinet backward. 2. To remove door assembly (1) Remove a screw which secure the stopper hinge top. (2) Remove the door assembly from top plate of cavity. (3) Reverse the above steps for reassembly.
- Page 11 DISASSEMBLY AND ASSEMBLY 3. To remove door parts. 1) KOG-37671S REF.NO PAR T CODE PART N AME DESCRIPTIO N REM ARK A 01 3512203830 F R A M E D O O R A B S A 02 3517005610 B A R RIE R -SC R E EN *O P M M A 1.5t A 03 3515306500...
- Page 12 DISASSEMBLY AND ASSEMBLY (1) Remove the gasket door from door plate. (2) Remove a screw which secure the door plate and door frame. (3) Remove the door frame from door plate. (4) Remove the stopper hinge top from door plate. (5) Remove the spring and the hook.
- Page 13 DISASSEMBLY AND ASSEMBLY 5. To remove control panel parts. R EF.NO PART CODE PART NAM E D ESCRIPTION REMAR K 3516719030 K O G -3767 C O NT R O L-PA N E L A BS 3511603910 K O G -3767 D E CO R ATO R C-PA N E L AB S 4415A 17352...
- Page 14 DISASSEMBLY AND ASSEMBLY 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. High voltage circuit wirng 7.
- Page 15 DISASSEMBLY AND ASSEMBLY 8. To remove wind guide assembly. (1) Remove a screw for earthing. (2) Remove the noise filter from the wind guide. (3) Remove a screw which secure the wind guide assembly. (4) Draw forward the wind guide assembly. (5) Pull the fan from the motor shaft.
- Page 16 DISASSEMBLY AND ASSEMBLY 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.
- Page 17 DISASSEMBLY AND ASSEMBLY 12. To remove heater parts. INSULATOR HEATER AS: 3513302700 REF.NO PART CO DE PAR T NAME DESCR IPTIO N Q TY R EMARK C 01 7392500008 N UT H E X 6N -2-5 S U S C 02 3515000600 S PA CE R IN SU LATO R *I C3771BD...
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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 when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave. 1. -
Page 19: Trouble Shooting Guide
TROUBLE SHOOTING GUIDE Following the procedures below to check if the oven is defective or not. 1. Check grounding before checking trouble. 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 then check continuity with the AC plug removed. - Page 20 TROUBLE SHOOTING GUIDE D oes the fan m oto r w ork w hen yo u shut the doo r and turn the tim e r? Y E S D oes the ove n lam p light? R epla ce or repa ir oven la m p, D oes the turntab le turn? turntable m otor.
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Page 21: 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 ±... -
Page 22: Microwave Radiation Test
MEASUREMENT AND TEST 2. MICROWAVE RADIATION TEST WARNING M ake sure to check the m icrow ave leakage before and after repair of adjustm ent. A lw ays start m easuring of an unknow n field to assure safety for operating personnel from m icrow ave energy. D o not place your hands into any suspected m icrow ave radiation field unless the safe density level is know n. -
Page 23: Component Test Procedure
MEASUREMENT AND TEST 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. 1. -
Page 24: Wiring Diagram
WIRING DIAGRAM 1. KOG-3767... -
Page 25: Exploded View And Parts List
EXPLODED VIEW AND PARTS LIST 1. DOOR ASSEMBLY Refer to 6.Disassembly and assembly. 2. CONTROL PANEL ASSEMBLY Refer to 6.Disassembly and assembly. 3. TOTAL ASSEMBLY (1) KOG-37671S... - Page 26 EXPLODED VIEW AND PARTS LIST - R : PART RECOMMENDED FOR STOCK PAR T CODE PART NAM E DESCRIPTION SUP PLY REMARK 3511710350 DOOR AS KOR-63671S Refer to Page 10 3516720340 CONTROL-PANEL AS KOG-37671S Refer to Page 12 3513302700 INSULATOR HEATER AS KOG-37150S Refer to Page 16 3510801310...
- Page 27 EXPLODED VIEW AND PARTS LIST PAR T CODE PART NAM E DESCRIPTION SUP PLY REMARK 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 3518570400 SWITCH S/A RELAY DWSR-1 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G PRIMARY 4415A66910 SW MICRO VP-531A-OF/SZM-V16-FA-61 MONITOR 4415A17352 SW MICRO VP-533A-OF SPNO #187 200G...
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