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Daewoo KOG-37050P Service Manual - Specifications

Summary of KOG-37050P

  • Page 1

    S/m no. : g37050p001 service manual microwave oven oct. 1999 daewoo electronics co., ltd http : //svc.Dwe.Co.Kr model : kog-37050p kog-39050p ✔ caution : in this manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts info...

  • Page 2: Table of Contents

    1 table of contents safety and precautions ........................................................................................................ 2 specifications ............................................................................................................................ 3 external...

  • Page 3: Safety and Precautions

    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 and may cause serious bodily injury to the operator. If any of the following conditions exist, operator must not use the appliance. (only a trai...

  • Page 4: Specifications

    3 specifications specifications are subject to change without notice. Model kog-3705 kog-3905 power supply 220v~60hz, single phase with earthing power consumption microwave 1200w 1300w grill 1050w 1050w combination 2200w 2350w microwave energy output 800w 900w microwave frequency 2450mhz 2450mhz out...

  • Page 5: External View

    4 external view 1. Outer dimension 465(495) 27 9( 29 4) 360(388) fig2. Side view fig1. Front view.

  • Page 6

    5 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) kn...

  • Page 7: Installation

    6 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 8: Operations and Functions

    7 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. Choose cooking power level by setting...

  • Page 9: Disassembly and Assembly

    8 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 safety during normal operation. However, carelessness in servicing the oven can result in an electric shock or possible...

  • Page 10

    9 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

    10 disassembly and assembly 3. To remove door parts. Kog-3705 kog-3905 (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 h...

  • Page 12

    11 disassembly and assembly 4. Method to reduce the gap between the door seal and the oven front surface. (1) to reduce gap located on part ‘a’. Loosen a screw on stopper hinge top, and then push the door to contact the door seal to oven front surface. Tighten a screw. (2) to reduce gap located on p...

  • Page 13

    12 disassembly and assembly 5. To remove control panel parts. (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 two screws which secure the timer assembly. (4) remo...

  • Page 14

    13 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. To re...

  • Page 15

    14 disassembly and assembly 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) reve...

  • Page 16

    15 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. (7) reverse the...

  • Page 17

    16 disassembly and assembly 12. To remove heater parts. Ref.No part code part name description qty remark c01 7392500008 nut hex 6n-2-5 sus 1 c02 3515000600 spacer insulator *i c3771bd 2 c03 3513301100 insulator heater spp t0.8 1 c04 3512803500 heater 220v 1000w 1sope47503 1 c05 7002500613 screw mac...

  • Page 18

    17 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 swi...

  • Page 19: Trouble Shooting Guide

    18 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 tra...

  • Page 20

    19 trouble shooting guide does the fan motor work when you shut the door and turn the timer? Does the oven lamp light? Does the turntable turn? Replace or repair oven lamp, turntable motor. If microwave do not oscillate, check continuity of filament of magnetron. Normal reading should be approx. 0 Ω...

  • Page 21: Measurement and Test

    20 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 ...

  • Page 22

    21 measurement and test 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 ...

  • Page 23

    22 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 u...

  • Page 24: Wiring Diagram

    23 wiring diagram.

  • Page 25

    24 exploded view and parts list 1. Door assembly refer to disassembly and assembly, page 10. 2. Control panel assembly refer to disassembly and assembly, page 12. 3. Total assembly.

  • Page 26

    25 exploded view and parts list - part recommended for stock no. Part code part name description q’ty remark a00 refer to . Disassembly and assembly door as refer to disassembly and assembly 1 b00 control-panel as 1 c00 insulator heater as 1 f01 3510801310 cabinet pcm t0.6ge 1 kog-3705 3510801400 pc...

  • Page 27

    26 f29 7272400811 taptite screw tt3 trs 4x8 mfzn 1 f30 3515201101 stopper hinge*u scp-1 t2.5 1 f31 4415a17352 sw micro vp-533a-of spno #187 200g 1 primary f32 4415a66910 sw micro vp-531a-of/szm-v16-fa- 61 1 monitor f33 4415a17352 sw micro vp-533a-of spno #187 200g 2 second- ary f34 3513702600 lever ...

  • Page 28

    Daewoo electronics co., ltd 686, ahyeon-dong mapo-gu seoul, korea c.P.O. Box 8003 seoul, korea telex : dwelec k28177-8 cable : “daewooelec” e-mail : g7f00e@web.Dwe.Co.Kr fax : 032) 510-7630 tel : 032) 510-7628 printed date : oct. 1999.