DAEWOO ELECTRONICS KOG-3767 Service Manual Download | Manualshive

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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.

A fter replacing the door assem bly, perform a check of correct alignm ent w ith the hinge and cavity front plate.

CAUTION

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Summary of Contents for KOG-3767

Page 1: ...Service Manual http svc dwe co kr Sep 1999 DAEWOO ELECTRONICS CO LTD Microwave Oven Model KOG 3767 S M No G37671S001 ...

Page 2: ...s to be serviced before activating the magnetron or other microwave source and make repairs as necessary 1 Interlock operation 2 Proper door closing 3 Seal and sealing surfaces arcing wear and other damage 4 Damage to or loosening of hinges and latches 5 Evidence of dropping or abuse c Before turning on power to the microwave oven for any service test or inspection within the microwave generating ...

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: ... 1050W COMBINATION 2200W MICROWAVE ENERGY OUTPUT 850W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 465 X 279 X 370 mm 18 3 X 11 0 X 14 6 in CAVITY DIMENSIONS W X H X D 290 X 220 X 306 mm 11 4 X 8 7 X 12 0 in NET W EIGHT APPROX 14 Kg 30 9lbs TIMER 60 min DUAL SPEED FUNCTION SELECTIONS MICROWAVE GRILL COMBINATION POW ER SELECTIONS 5 LEVELS CAVITY VOLUME 0 7 Cu Ft ...

Page 5: ... EXTERNAL VIEW 1 OUTER DIMENSION KOG 3767 3967 Fig1 Front view Fig2 Side view ...

Page 6: ...ft in the center 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 cooking 12 Door viewing screen Allows viewing of food The screen is designed so that light can pass through...

Page 7: ...type which if damaged must 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 Th...

Page 8: ...or 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 To set GRILL cooking Set the POWER SELECTOR to the grill position To set COMBI cooking Set the POWER SELECTOR to the combi position POWER LEVEL SYMBOL APPROXIMATE PERCENTAGE OF POWER KOG 3767 KOG 3967 HIGH MAX MAX 100 MED HIGH 750W 840W 88 MEDIU...

Page 9: ...epair work 2 Warning about the electric charge in the high voltage capacitor For about 30 seconds after the operation has stopped an 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 due to t...

Page 10: ...net 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 After replacing the door assembly perform a check of correct alignment with the hinge and cavity front plate CAUTION ...

Page 11: ...OK HSW 3 1 A09 3513100730 HOOK KOR 6325 POM 1 A10 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 1 A11 3512300200 GASKET DOOR KOR 61150S PP 1 REF NO PART CODE PART NAME DESCRIPTION QTY REMARK A01 3512204130 FRAME DOOR ABS 1 A02 3517005710 BARRIER SCREEN O PMMA 1 5t 1 A03 3515306600 SUPPOTER BARR S O ABS 1 A04 3511604000 DECORATOR DOOR ABS 1 A05 3511711800 DOOR PAINTING AS KOR 866T1S 1 A06 3517006000 B...

Page 12: ...emove the decorator door from door frame 9 Reverse the above steps for reassembly 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 part B Loosen two screws on stopper hinge under and then pu...

Page 13: ...l 8 Remove two switches from the control panel 9 Remove thd decorator c panel from the control panel 10 Reverse the above steps for reassembly REF NO PART CODE PART NAME DESCRIPTION QTY REMARK B01 3516719030 CONTROL PANEL ABS 1 KOG 3767 B02 3511603910 DECORATOR C PANEL ABS 1 KOG 3767 B03 4415A17352 SW MICRO VP 533A OF 1 B04 4415A66910 SW MICRO VP 531A OF 1 B05 3513405540 KNOB VPC ABS 1 B06 3515101...

Page 14: ... High voltage circuit wirng 7 To remove magnetron 1 Remove a screw which secure the magnetron 2 Remove the magnetron 3 Reverse the above steps for reassembly Never install the magnetron without the metallic gasket plate which is packed with each magnetron to prevent micro wave leakage Whenever repair work is carried out on magnetron check the microwave leakage It shall not exceed 4mW cm2 for a ful...

Page 15: ... wind guide 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 reassembly 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: ... 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 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: ... 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 INSULATOR HEATER AS 3513302700 ...

Page 18: ...closed the hook pushes the lock lever downward The lock lever presses the button of the interlock monitor switch to bring it under OFF condition and presses the button of the secondary interlock switch to bring it under ON condition 3 Adjustment steps 1 Loosen the one mounting screw 2 Adjust interlock switch assembly position 3 Make sure that lock lever moves smoothly after adjustment is completed...

Page 19: ...oor and turn the timer Does the fuse blow Check continuity of interlock monitor switch with door shut Replace primary secondary interlock switch and interlock monitor switch Replace fuse and check continuity of both interlock switch s contact and monitor switch s contact with door partially open until monitor switch contact Replace primary secondary interlock switch and interlock monitor switch Di...

Page 20: ...3 3V of high voltage Replace high voltage transformer Check the diode for continuity in the reverse and normal directions Replace high voltage diode Replace magnetron Replace magnetron Meter with 6V or higher voltage batteries should be used to check the normal direction resistance of the diode Check the isolation of filament winding of high voltage transformer Replace high voltage transformer Goo...

Page 21: ...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 water is selected so that the maximum difference between the ambient and final water tempera...

Page 22: ... on the door 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 ge...

Page 23: ...e ohmmeter 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 otherwise an infinite resistance may be read in both directions A normal diode s resistance will be infinite in one direction and ...

Page 24: ... WIRING DIAGRAM 1 KOG 3767 ...

Page 25: ... 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: ...X10 SE MFZN O F13 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN O F14 7S627W50X1 NUT HEX NUT FL M5X0 8P MFZN O F15 4414A25110 FUSE 250V 15A 65TS O 4414A25100 250V 15A MDA15 F16 3518606100 NOISE FILTER DWLF M13 O F17 7121403011 SCREW TAPPING T2S PAN 4X30 MFZN O F18 3512517000 GUIDE WIND PP O F19 3963513100 MOTOR SHADED POLE 230V 17W OEM 10DWC2 A07 O F20 3511800300 FAN PP 30 GLASS O F21 R 3518002200 MA...

Page 27: ...G T2S PAN 4X6 MFZN O F44 R 3966310100 MOTOR SYNCRO 220V 2 5W GM 16 24FD12 O F45 3518905300 THERMOSTAT OFF 75 ON 65 H 187 NB O F46 3513003400 HOLDER THERMOSTAT PBT O F47 3516003700 SCREW SPECIAL TT3 HEX 4X8 FLG MFZN O F48 4078502031 BUTTON LOCKING PP HONAM A353 O F49 3511405100 COVER WAVE GUIDE MICA T0 35 O F50 3517400620 COUPLER XAREC O F51 3514700710 ROLLER TEFLON X F52 3512517300 GUIDE ROLLER PP...

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