Service Manual
Model
:
KO
R
-
6QDB
Microwave Oven
Feb. 2008
S/M No. :
OR6QDB3001
Page 1: ...Service Manual Model KOR 6QDB Microwave Oven Feb 2008 S M No OR6QDB3001...
Page 2: ...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 Fe...
Page 3: ...servicing the oven 2 If any certified oven unit is found to have excessive emission level 5mW cm the service person should a inform the manufacturer importer or assembler b repair the unit at no cost...
Page 4: ...0MHz OUTSIDE DIMENSIONS W H D 465 x 279 x 331 mm 18 3 x 11 0 x 13 0 in CAVITY DIMENSIONS W H D 301 x 293 x 219 mm 11 9 x 11 5 x 8 6 in CAVITY VOLUME 68 cu ft NET WEIGHT APPROX 12 kg 26 54 lbs TIMER 59...
Page 5: ...s cavity floor This is to remain in the oven for all cooking 7 7 Roller guide This must always be used for cooking together with the glass cooking tray 8 8 Glass cooking tray Made of special heat resi...
Page 6: ...Used to remove time from cooking t Auto Defrost Used to defrost foods for weight y Power Used to set power level u Defrost Used to defrost foods for time i Kitchen Timer Used as a minute timer to dela...
Page 7: ...icrowave oven requires a current of approximately 9 amperes 120Volts 60Hz grounded outlet Power supply cord is about 0 8 meters long 1 A short power supply cord is provided to reduce the risks resulti...
Page 8: ...uring the oven operation the oven stops cooking and all information retained To erase all information except the present time touch the STOP CLEAR pad once more If the oven door is opened during the o...
Page 9: ...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 shor...
Page 10: ...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 a...
Page 11: ...frame 6 Reverse the above steps for reassembly REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK A01 3512208530 FRAME DOOR HIPS SG 970 HG 176OH 1 A02 3517007300 BARRIER SCREEN O PET T0 125 1 A03 3515...
Page 12: ...then push the door to contact the door seal to the oven front surface Tighten two screws 3 To reduce gap located on part C Loosen the screw on the interlock switch assembly located the top of the ove...
Page 13: ...B assembly 4 Detach membrane from the control panel 5 Reverse the above steps for reassembly REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK B01 351857183O SWITCH MEMBRANE KOG 6QDB3A27 1 B02 351673...
Page 14: ...ge circuit wiring 7 To remove magnetron 1 Remove the screw which secure the magnetron 2 Remove the magnetron 3 Reverse the above steps for reassembly NOTE Never install the magnetron without the metal...
Page 15: ...assembly 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...
Page 16: ...er 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 a Loose...
Page 17: ...of the terminals and power cord before check the parts listed below CONDITION CHECK Check continuity of interlock monitor switch with door closed Check continuity of of primary interlock switch contac...
Page 18: ...nuity Adjust or replace Check D C voltage being supplied to RELAY RY2 coil Defective touch control circuit 0 V Replace Faulty contacts of RELAY RY2 or open relay coil Approx 15 VDC Replace Display do...
Page 19: ...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 0 or Defective...
Page 20: ...mps 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 pad is touched in case of setting the present time 11 O...
Page 21: ...el 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 follow...
Page 22: ...net 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 i...
Page 23: ...ance 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 A normal diode s resistance will b...
Page 24: ...23 WIRING DIAGRAM...
Page 25: ...NOTE Each measure point must be measured with GND point NOTE 1 Refer to Circuit Diagram point 4 2 Secondary side voltage of the low voltage transformer changes in proportion to fluctuation of power so...
Page 26: ...25 Measure Point MP1 MP2 GND...
Page 27: ...tal clock does not operate properly Refer to Circuit Diagram If clock does not keep exact time you must check resistor R20 and zener diode ZD2 STATE POINT A B RELAY 2 ON 5VDC GND RELAY 2 OFF GND 12VDC...
Page 28: ...27 2 PCB CIRCUIT DIAGRAM...
Page 29: ...O TZRA106M 5 17 TR Q06 KTA1266Y AUTO 1015Y TZTA1266Y 1 18 TR Q09 11 KRC106M AUTO TZRC106M 3 19 R ARRAY RA1 8P 7 1 8 100K OHM J RA 88X104J 1 20 R ARRAY RA2 7P 6 1 8 100K OHM J RA 87X104J 1 21 PCB MAIN...
Page 30: ...29 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 31: ...CAPACITOR SECC T0 5 1 F19 3518301600 CAPACITOR HV 2100VAC 0 77UF 187 65MM 1 F20 3518400900 DIODE HV AS HVR 1X 30B 187 1 F21 3518122900 TRANS HV DWAR70A0 63T A AL AL 1 F22 3516003700 SPECIAL SCREW TT3...
Page 32: ...S M NO 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 Feb 2008...
