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3. Main Unit
Page 1: ...Service Manual Microwave Oven Model KOR 61852S KOR 61850N KOR 61952S DAEWOO ELECTRONICS CO LTD...
Page 2: ...avity for proper alignment integrity and connection d Any defective or misadjusted components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired rep...
Page 3: ...make repairs 1 A broken door hinge 2 A broken door viewing screen 3 A broken front panel oven cavity 4 A loosened door lock 5 A broken door lock The door seal area and oven cavity surface be kept clea...
Page 4: ...ULL MICROWAVE POWER FREQUENCY 2450 MHz OUTSIDE DIMENSIONS WXHXD 465 X 274 X 364 mm CAVITY DIMENSIONS WXHXD 290 X 200 X 290 mm NET WEIGHT APPROX 13 5Kg TIMER 35 min DUAL SPEED POWER SELECTIONS 5 LEVELS...
Page 5: ...ing Tray Made of special heat resistant glass Food in a proper receptacle is placed on this tray for cooking 7 Roller guide This must always be used for cooking together with the glass cooking tray 8...
Page 6: ...cord is about 1 0 meters long Do not use an extension cord If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid...
Page 7: ...mply adjust the Timer to the desired time 7 When the timer reaches zero a bell will ring and the unit will turn off Oven light turns off If additional cooking time is needed and the door is closed the...
Page 8: ...immediately before the water is added to the vessel After addition of the water to the vessel the load is immediately placed on the center of the shelf which is in the lowest normal position 4 Microw...
Page 9: ...y assembled oven with door normally closed must be less than 4mW cm2 When measuring the leakage always use the 2 in 5cm space cone with probe Hold the probe perpendicular to the cabinet door Place the...
Page 10: ...ERLOCK SWITCH UPPER TIMER ASSY TIMER SWITCH V P C NO COM INTERLOCK MONITOR SWITCH NC BK WH BL BL SECONDARY INTERLOCK SWITCH WH GY GY GY GY GY GY RD RD MAGNETRON 1 3 2 M NOTE RD RED NOTE WH WHITE NOTE...
Page 11: ...TIMER SWITCH V P C NO COM INTERLOCK MONITOR SWITCH NC BK WH BL SECONDARY INTERLOCK SWITCH WH GY GY GY GY GY GY RD RD MAGNETRON 1 3 2 M NOTE RD RED NOTE WH WHITE NOTE BK BLACK NOTE GN GREEN NOTE BR BR...
Page 12: ...TCH UPPER TIMER ASSY TIMER SWITCH V P C NO COM INTERLOCK MONITOR SWITCH NC BK WH BL SECONDARY INTERLOCK SWITCH WH GY GY GY GY GY GY OR OR MAGNETRON 1 3 2 M RD RD NOTE RD RED NOTE WH WHITE NOTE BK BLAC...
Page 13: ...h voltae transformer and this secondary voltage is increased by the action of the diode and the charging of the high voltage capacitor This resultant D C voltage is then applied to the anode of the ma...
Page 14: ...o the high voltage transformer to stop microwave oscillation Fan motor timer motor and turntable motor stop rotating Oven lamp turn off As soon as the door is opened monitor switch close NC to create...
Page 15: ...epair 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 o...
Page 16: ...stopper hinge top 2 Remove the stopper hinge top and door assembly from top plate of cavity 3 Remove the stopper hinge top from door assembly 4 Reverse the above for reassembly taking care to replace...
Page 17: ...n two screws 2 To reduce gap located on part B 1 Loosen three three screws on bottom hinge and then the door to contact the door seal to oven front surface 2 Tighten three screws 3 To reduce gap locat...
Page 18: ...C knob B01 and the flat spring B03 from the control panel B02 4 Remove two screws B08 which secure the timer ass y B07 5 Pull out the knob B09 from the timer ass y B07 6 Remove the timer ass y B07 7 P...
Page 19: ...citor 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 three screws which secure the magnetro...
Page 20: ...nsformer 2 Remove the transformer 3 Reverse the above steps for reassembly CAUTION Never install the magnetron without the metallic gasket plate which is packed with each magnetron to prevent microwav...
Page 21: ...ed the hook locks the oven door If the door is not closed properly the oven will not operate When the door is closed the hook pushed the button of themicro switch Then the button of the primary interl...
Page 22: ...e two mounting screws b Adjust interlock switch assembly position c Confirm the gap 1 2mm described above d Make sure that push lever moves smoothly after adjustments is completed e Completely tighten...
Page 23: ...nterlock switch secondary interlock switch and interlock monitor switch All these switches must be replace at the same time Replace H V T Thermal cut out Outlet has Proper voltage Check continuity of...
Page 24: ...ontacts of a relay operate oven Normal reading should be approx 0 Meter with 6V or higher voltage batteries should be used to check the normal direction resistance of the diode NO GOOD Poor continuity...
Page 25: ...atteries should be used to check the front back resistance of the diode otherwise an infinite resistance may be read in both directions A normal diodes resistance will be infinite in one direction and...
Page 26: ...ero resistance ohmmeter Fig a Condition 1 Door is opened 2 Common terminal of the monitor switch disconnected 3 In case of secondary interlock switch ohmmeter Fig c Condition 1 Door is closed 2 In cas...
Page 27: ...OOR 3512202030 ABS 1 KOR 6185OS N 3512202040 KOR 6195OS A02 BARRIER SCREEN O 3517003050 ACRYL 1 A03 SUPPORTER BARR S O 3515304610 PP 1 A04 STOPPER HINGE T AS 3515201500 KOR 6115OS 1 A05 DOOR WELD AS 3...
Page 28: ...PRING FLAT 3515101600 SUS 301 T0 5 1 B04 COUPLER VPC KNOB 3517400500 POM 1 B05 SCREW TAPPING 7122401211 T2S TRS 4X12 MFZN 1 B06 COUPLER TIMER 3517400400 POM 1 B07 TIMER 3518203800 KN35MKD 24E P 1 B08...
Page 29: ...28 3 Main Unit...
Page 30: ...IAL 3516003700 TT3 FLG HEX 4X8 MFZN 4 F21 TRANS H V 3518106210 JY N8OSO 61T 1 F22 MOTOR SYNCRO 3966310100 GM 16 24FD12 1 F23 SCREW TAPPING 7121400611 T2S TRS 4X6 MFZN 1 F24 SCREW TAPPING 7112401011 T1...
Page 31: ...NO R61852S001 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 02 590 6291 TEX 02 360 7114 590 6151 5 PRINTED DATE JU...
