Daewoo KOG-3Q47 Service Manual Download Page 1

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Service Manual

Microwave Oven

Model: K

G-

DAEWOO ELECTRONICS CORP.

S/M No. : G6C475S001¾

http : //svc.dwe.co.kr

Nov. 2004

✔

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 information, please refer to PPL(Parts
Price List) in Service Information Center (http://svc.dwe.co.kr).

Summary of Contents for KOG-3Q47

Page 1: ...C475S001 http svc dwe co kr Nov 2004 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 information please refer to PPL Parts Price List in Service Information Center http svc dwe co kr ...

Page 2: ...ns d Any defective or misadjusted components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner e A microwave leakage check to verify compliance with the Federal performance standard should be per formed on each oven prior to release to the owner ...

Page 3: ...certified oven unit is found to servicing a microwave emission check should be performed prior to servicing the oven a inform the manufacturer importer or assembler b repair the unit at no cost to the owner c attempt to ascertain the cause of the excessive leakage d tell the owner of the unit not to use the unit until the oven has been brought into compliance 3 If the oven operates with the door o...

Page 4: ...COMBINATION 2200 W MICROWAVE ENERGY OUTPUT 800W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W x H x D 465 x 279 x 384mm CAVITY DIMENSIONS W x H x D 290 x 208 x 306mm NET WEIGHT APPROX 14Kg TIMER 35 min DUAL SPEED POWER SELECTIONS 7 LEVELS CAVITY VOLUME 0 7 Cu Ft Specifications are subject to change without notice ...

Page 5: ...er the shaft in the center of the ovens cavity floor This is to remain in the oven for all cooking 0 Roller guide This must always be used for cooking together with the glass cooking tray q Glass cooking tray Made of special heat resistant glass Food in a proper receptacle is placed on this tray for cooking w Door viewing screen Allows viewing of food The screen is designed so that light can pass ...

Page 6: ...st be repaired with cable of same type Such a cable can be purchased from DAEWOO and must be installed by a Qualified Person 6 Examine the oven after unpacking for any damage such as A misaligned door broken door or a dent in cavity If any of the above are visible DO NOT INSTALL and notify dealer immediately 7 Do not operate the oven if it is colder than room temperature This may occur during deli...

Page 7: ...oor open your microwave oven is fitted with safety door interlock switches If you wish to inspect the food during the cooking time simply open the door The oven will automatically stop cooking To continue cooking you simply close the door If you wish to stop cooking during the cooking simply turn the timer knob the point OFF Cooking can be reset at any time during the cooking cycle by only turning...

Page 8: ...air work 2 Warning about the electric charge in the high voltage capacitor For about 30 seconds after the operation stopped and electric charge remains in the high voltage capacitor When replacing or checking parts short between oven chassis and the negative high terminal of the high voltage capacitor by using a properly insulated screwdriver to discharge 4 When the 15A fuse is blown out due to th...

Page 9: ...rd 2 To remove door assembly 1 Remove a screws which secure the stopper hinge top 2 Remove the door assembly from top plate of cavity 3 Reverse the above for reassembly NOTE After replacing the door assembly perform a check of correct alignment with the hinge and cavity front plate 8 ...

Page 10: ...ARRIER SCREEN I POLYESTER T0 1 1 A07 3512300210 GASKET DOOR PP 1 A08 3513100730 HOOK POM BLACK 1 A09 3515101320 SPRING HOOK HSW 3 1 3 To remove door parts 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 hook 6 Remove the barrier scree...

Page 11: ...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 part B Loosen two screws on stopper hinge under and then push the door to contact the door seal to oven front surface Tighten two screws NOTE A small gap may be acceptable if the microwave leakage does not exceed 4mW cm2 ...

Page 12: ...PING T2S TRS 4X12 MFZN 1 B14 3511410200 COVER KNOB SLIDE PP 1 B15 3513703000 LEVER STOPPER POM 1 B16 3513407300 KNOB SLIDE ABS SG 175 SG 0760D 1 B17 3515101600 SPRING FLAT SUS 301 T0 5 1 5 To remove control panel parts 1 Remove the screw which secure the control panel push two snap fits and draw forward the control panel assembly 2 Remove two screws which secure the timer assembly 3 Remove the tim...

Page 13: ...2 for a fully assembled oven with door normally closed 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 wiring 7 To remove magnetron 1 Remove a screw which secure the magnetron 2 Remove the magnetron 3 R...

Page 14: ...ssembly 4 Draw forward the wind guide assembly 5 Pull the fan from the motor shaft 6 Remove two screws which secure the motor shaded pole 7 Remove the motor shaded pole 8 Reverse the above steps for reasembly 9 To remove H V transformer 1 Remove four screws holding the H V transformer 2 Remove the H V transformer 3 Reverse the above steps for reassembly 13 ...

Page 15: ...rew which secure the tray motor 6 Remove the tray motor 7 Reverse the above steps for reassembly except for secur ing the tray motor cover with screw 11 To remove heater assembly 1 Remove one side of the heater harness 2 Remove a screw which secure the cover insulator top 3 Remove the cover insulator top 4 Remove the heater top assembly 5 Reverse the above steps for reassembly 14 ...

Page 16: ...REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK C01 3512765100 HARNESS HEATER KOC 970T1S TEFLON 1 C02 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN 2 C03 3510607800 BRACKET HEATER T SBHG T0 5 2 C04 3512803700 HEATER MIRACLON 115V AC 500W 2 C05 3511408100 COVER HEATER T STS430 T0 5 1 ...

Page 17: ... pushes the lock lever downward The lock lever presses the button of the interlock monitor switch to bring it under NO condition and presses the button of the secondary interlock switch to bring it under ON condition 3 Adjustment steps a Loosen the one mounting screw b Adjust interlock switch assembly position c Make sure that lock lever moves smoothly after adjustment is completed d Tighten compl...

Page 18: ...oes the fan motor work when you shut the door and turn the timer YES If outlet has proper voltage check continuity of power supply cord Replace power supply cord NO Continuity Check continuity of interlock monitor switch with door shut Replace primary secondary interlock switch and interlock monitor switch Continuity Both continuity Replace fuse and check continuity of both interlock switch s cont...

Page 19: ...able motor NO If microwave do not oscillate check continuity of filament of magnetron Poor continuity NO Continuity Check continuity filament tap 3 3V of high voltage Replace high Voltage transformer No Continuity Continuity Check continuity filament tap 3 3V of high voltage Replace high Voltage transformer Continuity in the reverse direction Replace magnetron Normal reading should be approx 0 Met...

Page 20: ...e water to the vessel the load is immediately placed on the center of the shelf which is in the lowest normal position 4 Microwave power is switched on 5 Heating time should be exactly A seconds Refer to table as following Heating time is measured while the microwave generator is operating at full power The filament heat up time for magnetron is not included 6 The initial and final temperature of ...

Page 21: ...r cabinet door seem door viewing screen the exhaust air vents and the suction air vents 3 Measuring should be in a counter clockwise direction at a rate of 1 in sec If the leakage of the cabinet door seem is unknown move the probe more slowly 4 When measuring near a corner of the door keep the probe perpendicular to the areas making sure the probe end at the base of the cone does not get closer th...

Page 22: ...er set on the highest resistance scale measure the resistance across the diode terminals Reverse the meter leads and again observe the resistance reading Meter with 6V 9V or higher voltage batteries should be used to check the front back resistance of the diode oth erwise an infinite resistance may be read in both directions A normal diode s resistance will be infinite in one direction and several...

Page 23: ...22 WIRING DIAGRAM ...

Page 24: ...23 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 ...

Page 25: ...F26 3512100900 FOOT PP DASF 130 2 F27 7272400811 SCREW TAPTITE TT3 TRS 4X8 MFZN 1 F28 3515201101 STOPPER HINGE U SCP 1 T2 5 1 F29 3512717610 HARNESS MAIN KOG 57350S 1 F30 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 1 F31 3518570400 SWITCH S A RELAY DWSR 1 1 F32 4415A17352 SW MICRO VP 533A OF SPNO 187 200G 1 F33 4415A66910 SW MICRO VP 531A OF SZM V16 FA 61 1 F34 4415A17352 SW MICRO VP 533A OF SPNO 1...

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