DAEWOO ELECTRONICS KOG-37470S Service Manual Download Page 1

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Service Manual

Microwave Oven

Model: KOG-37470S

DAEWOO ELECTRONICS CO., LTD.

http://svc.dwe.co.kr

Summary of Contents for KOG-37470S

Page 1: ...Service Manual Microwave Oven Model KOG 37470S DAEWOO ELECTRONICS CO LTD h t t p s v c d w e c o k r ...

Page 2: ... ment integrity and connections 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 p...

Page 3: ...ified 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 open ...

Page 4: ...GY OUTPUT 800W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 465 x 279 x 360 mm CAVITY DIMENSIONS W X H X D 290 x 220 x 306 mm NET WEIGHT Approx 13 4 kg TIMER 60 min Dual Speed FUNCTION SELECTIONS MICROWAVE GRILL COMBINATION POWER SELECTIONS 7 LEVELS CAVITY VOLUME 0 7 Cu Ft SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE SPECIFICATIONS ...

Page 5: ...4 EXTERNAL VIEW 1 OUTER DIMENSION ...

Page 6: ...er of the ovens cavity floor This is to remain in the oven for all cooking 10 Roller guide This must always be used for cooking together with the glass cooking tray 11 Glass cooking tray Made of special heat resistant glass Food in a proper receptacle is placed on this tray for cook ing 12 Door viewing screen Allows viewing of food The screen is designed so that light can pass through but not the ...

Page 7: ...ust 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 del...

Page 8: ...king time is needed and the door is closed the oven will automatically start when the timer is reset To set MICROWAVE cooking Set the variable power selector to the desired power level SYMBOL POWER LEVEL OUTPUT POWER WARM 26 DEFROST 41 1 MEDIUM 73 2 MED HIGH 88 3 HIGH 100 NOTE 1 When setting timer for less than 2 minutes tum the timer past 2 minutes and then return to the correct timer setting 2 V...

Page 9: ... repair 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 t...

Page 10: ...ard 2 To remove door assembly 1 Remove two 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 ...

Page 11: ...0 SPRING HOOK HSW 3 1 A09 7001503310 SCREW MACHINE PAN 5X33 MFZN 2 A10 3512603210 HANDLE DOOR ALUMITE 1 A11 3511601500 DECORATOR LOGO AL T1 5 1 A12 3511604610 DECORATOR DOOR U STS T0 6 1 A13 3511604600 DECORATOR DOOR T STS T0 6 1 A14 3516003940 SPECIAL DOUBLE TAPE SI 161 T0 15 27MM 1 1 Remove the gasket door from door plate 2 Remove the barrier screen inner from door plate 3 Remove the door frame ...

Page 12: ...inge top and then push the door to contact the door seal to oven front surface Tighten two screws 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 13: ...for reassembly REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK B01 3513405460 KNOB VPC ABS XR 401 H 2938 1 B02 3513405460 KNOB TIMER ABS XR 401 H 2938 1 B03 3511603930 DECORATOR C PANEL STS T0 6 1 B04 3516003950 SPECIAL DOUBLE TAPE SI 161 T0 15 1 B05 3516719070 CONTROL PANEL ABS XR 401 H 2938 1 B06 3515101600 SPRING FLAT SUS 301 T0 5 1 B07 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 1 B08 351820...

Page 14: ...cm2 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...

Page 15: ... assembly 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 ...

Page 16: ...se 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 except for securing the tray motor cover with screw 11 To remove heater assembly 1 Remove the three nuts 2 Remove the insulator heater assembly 3 Reverse the above steps for reassembly ...

Page 17: ...AME DESCRIPTION Q TY 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 3512803400 HEATER 230V 1000W 1R67994001 1 C05 7002500613 SCREW MACHINE TRS 5X6 MFCR 1 C06 7002400413 SCREW MACHINE TRS 4X4 MFCR 2 ...

Page 18: ...ok 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 com...

Page 19: ... Does 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 co...

Page 20: ...table 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 0Ω M...

Page 21: ...the 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 o...

Page 22: ...inet 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 than 2 ...

Page 23: ...meter 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 seve...

Page 24: ...23 WIRING DIAGRAM ...

Page 25: ...24 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 26: ...MFZN O F24 3513003200 HOLDER HV CAPACITOR SECC T0 6 O F25 3518302200 CAPACITOR HV 2100VAC 0 98µF 187 O F26 3518400400 DIODE HV HVR 1X 3AB 112KV 187 O F27 3518701100 FUSE HV 5KV 0 55A HV 41A55 02 187 O F28 3518113700 TRANS HV DY N80S0 63T O F29 3516003700 SPECIAL SCREW TT3 HEX 4X8 SE MFZN O F30 3510311700 BASE SBHG T0 8 O KOG 37150S F31 7112401011 SCREW TAPPING T1 TRS 4X10 MFZN O F32 3512100900 FOO...

Page 27: ...DAEWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC FAX 02 360 8184 TEL 02 360 8183 E mail G7F00E web dwe co kr PRINTED DATE Nov 1999 ...

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DAEWOO ELECTRONICS KOG-37470S, Service Manual

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