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Service Manual

Microwave Oven

Model: KOG-86AR7S

DAEWOO ELECTRONICS CORP.

S/M No. : G86AR7S001

http : //svc.dwe.co.kr

Aug. 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-86AR7S

Page 1: ...6AR7S001 http svc dwe co kr Aug 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 pleas...

Page 2: ...nitor 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 l...

Page 3: ...d 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...

Page 4: ...W MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 495 x 294 x 394 mm 19 5 x 11 6 x 15 5 in CAVITY DIMENSIONS W X H X D 320 x 237 x 343 mm 12 6 x 9 3 x 13 5 in NET WEIGHT Approx 15 8kg 34 9 lb...

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

Page 6: ...he microwave outlet from splashes of cooking foods 5 5 OVEN LAMP Automatically turns on during oven operating 6 6 SAFETY INTERLOCK SYSTEM 7 7 CONTROL PANEL 8 8 GLASS COOKING TRAY Made of special heat...

Page 7: ...level 4 4 Defrost Used to defrost foods by weight or time 4 4 Grill Used to grill 4 4 Combi Used to cook combi 5 5 Clock Used to set clock 6 6 Start Express cook Used to start the oven operation and...

Page 8: ...t 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...

Page 9: ...e If the oven door is opened during the oven operation all information is retained 10 If the START button is pressed and the oven does not operate check the area between the door and make sure the 11...

Page 10: ...r 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 ch...

Page 11: ...ard 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 for reassembly NOTE After replacing the door a...

Page 12: ...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...

Page 13: ...nge 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 conta...

Page 14: ...760D 1 B11 3516913100 BUTTON FUNCTION D ABS SG 175 SG 0760D 1 5 To remove control panel parts C PANEL ASSEMBLY PKCPSWA620 1 Remove the screw which secure the control panel push up two snap fits and dr...

Page 15: ...circuit wiring 7 To remove magnetron 1 Remove a screw which secure the magnetron 2 Remove the magnetron 3 Reverse the above steps for reassembly NOTE Never install the magnetron without the metallic...

Page 16: ...ssembly 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 Reverse the above steps for reassembly 9 To remove H V transformer 1...

Page 17: ...e 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...

Page 18: ...er 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 A...

Page 19: ...with door partially open until interlock moni tor switch contact close COM NO Replace NOTE Shorted contacts of primary interlock switch Shorted contacts of primary interlock switch Defective low volt...

Page 20: ...on Check continuity of primary interlock switch No Continuity Malfunction of primary interlock switch Adjust or Replace Malfunction of sec ondary interlock and D O M switch Check continuity of second...

Page 21: ...iode Replace Connect megger leads to magnetron terminal and magnetron body Continuity Defective magnetron Replace Check resistance of primary and secondary coil of high voltage transformer Defective h...

Page 22: ...ormally but no display shows 8 Display obviously jumps in time while counting down 9 Display counts down noticeably too fast while cooking 10 Display does not show the time of day when STOP CLEAR butt...

Page 23: ...sel 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 follo...

Page 24: ...t 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...

Page 25: ...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 600V or higher voltage Mege...

Page 26: ...WIRING DIAGRAM 25...

Page 27: ...Each measure point must be measured with GND points NOTE 1 Refer to Circuit Diagram point 4 2 Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power sourc...

Page 28: ...MP1 MP2 Measure Point GND 27...

Page 29: ...or is opened during operation the count down timer does not stop refer to Circuit Diagram Point 1 Check method 6 When the digital clock does not operate properly refer to Circuit Diagram Point 5 If cl...

Page 30: ...2 PCB CIRCUIT DIAGRAM 29...

Page 31: ...ON FILM R16 RD AZ105J 1 6 1M OHM 5 1 24 R CARBON FILM R21 RD 4Z510J 1 4 51 OHM 5 1 25 RESONATOR CERA CR1 5P4R00MTS CRT4 00MS 1 26 SW RELAY RY1 RY3 5SC0101121 G5G 1A 1C 1P DC12V 2 27 SW RELAY RY2 5SC01...

Page 32: ...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 31...

Page 33: ...HV 41A55 02 1 F26 3518114801 TRANS HV DY N90S0 86TB 1 F27 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 4 F28 3510311900 BASE SBHG T0 8 1 F29 7112401011 SCREW TAPPING T1 TRS 4 10 MFZN 5 F30 3512100900...

Page 34: ...S M NO G86AR7S001 DAEWOO ELECTRONICS CORP 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC PRINTED DATE Aug 2004...

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