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Daewoo KOR-63DB0S, Руководство по обслуживанию

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14

NOTE : Never install the magnetron without the metallic gasket plate which is packed with each magnetron to pre-
vent microwave leakage. Whenever repair work is carried out on magnetron, check the microwave leakage. It shall
not exceed 4mW/cm

2 

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) Reverse the above steps for reassembly.

Содержание KOR-63DB0S

Страница 1: ...Service Manual Model KOR 6NFB Microwave Oven Sep 2008 S M No R6NFB3S001 ...

Страница 2: ...ck 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 prior to release to the owner TABLE OF CONTENTS SAFETY AND PRECAUTIONS 2 1 FOR SAFE OPERA...

Страница 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 ...

Страница 4: ... MICROWAVE FREQUENCY 2450MHz OUTSIDE DIMENSIONS W X H X D 465 x 279 x 324 mm 18 3 x 11 0 x 12 8 in CAVITY DIMENSIONS W X H X D 290 x 220 x 283 mm 11 4 x 8 7 x 11 1 in NET WEIGHT APPROX 12 5 kg 27 6 Ibs TIMER 59 min 90 sec FUNCTION SELECTIONS MICROWAVE POWER SELECTIONS 10 LEVELS CAVITY VOLUME 0 7 Cu Ft 3 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE SPECIFICATIONS ...

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

Страница 6: ...e outlet from splashes of cooking foods 5 OVEN LAMP Automatically turns on during oven operating 6 SAFETY INTERLOCK SYSTEM 7 CONTROL PANEL 8 GLASS COOKING TRAY Made of special heat resistant glass The tray must always be in proper position before operating Do not cook food directly on the tray 9 OVEN FRONT PLATE 10 DOOR OPENING BUTTON To open the door push the door opening button When door is clos...

Страница 7: ...k Used to set clock 15 Auto cook Used to cook or reheat 16 One touch Used to cook or reheat specific quantities of food 17 More Used to add time to cooking 18 Less Used to remove time from cooking 19 Time set pad Used to set the cooking time and the present time 10 Stop Clear Used to stop the oven operation or to delete the cooking data 11 Start Speedy cook Used to start the oven and also used to ...

Страница 8: ...f special 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 temp...

Страница 9: ...en operatiion the oven stops cooking and all information retained To erase all information except the present time touch the CANCEL button once more If the oven door is opened during the oven operation all information is retained 10 If the START button is touched and the oven does not operate check the area between the door and door is closed securely The oven will not start cooking under the door...

Страница 10: ...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 12A fuse is blown out due to...

Страница 11: ...ward 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 ...

Страница 12: ...200 FRAME DOOR PP SI83C 1 A02 3517007300 BARRIER SCREEN 0 PET T0 125 1 A03 3515204100 STOPPER SINGE T AS KOR 63150S 1 A04 3511705500 DOOR WELD AS KOR 61150S 1 A05 3517002800 BARRIER SCREEN I T0 1 1 A06 3512300200 GASKET DOOR PP 1 A07 3513100700 HOOK POM 1 A08 3515101300 SPRING HOOK PW 1 1 ...

Страница 13: ...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 1 Remove the gasket door from door weld as 2 Remove the door frame from door weld as 3 Remove the stopper hinge top from door weld as 4 Remove the spring and the hook 5 Remove the barrier screen outer from door frame 6 Reverse the above steps for reassembly NOTE A sma...

Страница 14: ...membrane from the control panel 6 Remove door open button and button spring from the control panel 7 Reverse the above steps for reassembly REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK B01 3518520970 SWITCH MEMBRANE KOR 63FB9S 1 B02 3516725350 CONTROL PANEL ABS SG 0760D SG 175 1 B03 PKMPMSEB00 PCB AS KOR 63DB9S 1 KOR 6NFB3S PKMPMSEC00 KOR 63DB0S 1 KOR 6NFB5S B04 7122401211 SCREW TAPPING T2S ...

Страница 15: ...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...

Страница 16: ...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 ...

Страница 17: ...k 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 two mounting screws b Adjust interlock switch assembly position c Make sure that lock lever moves smoothly after adjustment is completed d Tighten com...

Страница 18: ...he terminals and power cord before check the parts listed below CONDITION CHECK Check continuity of interlock monitor switch with door closed Malfunction of interlock moni tor switch Malfunction of interlock switch Shorted con tacts of primary interlock switch RESULT Continuity No Continuity CAUSE REMEDY Replace NOTE 1 Fuse blows Replace NOTE 1 NOTE 1 No Continuity Continuity Defective low voltage...

Страница 19: ... relay coil Approx 12 VDC Replace NOTE All these switches must be replaced at the same time please refer to Interlock Mechanism And Adjustment TROUBLE 2 Display shows all figures selected but oven does not start cooking even though desired program and time are set and start button is tapped CONDITION CHECK Check continuity of magnetron Defective mag netron RESULT No Continuity CAUSE REMEDY Replace...

Страница 20: ...on Defective high voltage rectifier Replace Connect megger leads to mag netron terminal and magnetron body Continuity Defective mag netron Replace Check resistance of primary and secondary coil of high voltage transformer 0 Ω or Defective high voltage trans former Replace Check continuity of magnetron with wires removed No Continuity Defective mag netron Replace Check continuity of filament termi ...

Страница 21: ...y jumps in time while counting down 19 Display counts down noticeably too fast while cooking 10 Display does not show the time of day when cancel button is touched 11 Oven lamp and turntable motor do not stop although cooking is finished Check if the RELAY 2 contacts close if they are close replace touch control circuit NOTE Before following the particular steps listed above in the trouble shootin...

Страница 22: ...essel 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 of water is selecte...

Страница 23: ...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 ...

Страница 24: ...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...

Страница 25: ...24 WIRING DIAGRAM ...

Страница 26: ... 2 NOTE 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 source voltage 3 The allowable tolerance of the secondary voltage is within 5 of nominal voltage Terminal Voltage 4 8 LOAD AC 25 8 V NO LOAD AC 31 8 V NO MEASURE POINT WAVE FORM REMEDY REMARK 1 MP1 ...

Страница 27: ...26 Measure Point MP1 MP2 ...

Страница 28: ... When the door is opened during operation the count down timer does not stop refer to Circuit Diagram Point 1 Check method 5 When the digital clock does not operate properly refer to Circuit Diagram Point 5 If clock does not keep exact time you must check resistor R23 24 zener diode ZD2 STATE POINT A B RELAY 2 ON 5VDC GND RELAY 2 OFF GND 12VDC STATE POINT A B RELAY 1 ON 5VDC GND RELAY 1 OFF GND 12...

Страница 29: ...28 2 PCB CIRCUIT DIAGRAM ...

Страница 30: ... AZ331J 7 15 REGISTER R4 R14 R20 1 6W 1K 5 RD AZ102J 3 16 REGISTER R3 1 6W 4 7K 5 RD AZ472J 1 17 REGISTER R15 R16 1 6W 100K 5 RD AZ104J 2 18 REGISTER R21 1 6W 100 5 RD AZ101J 1 19 REGISTER R10 13 R19 R23 24 1 6W 10K 5 RD AZ103J 7 20 REGISTER R17 1 6 1M 5 RD AZ105J 1 21 REGISTER R22 1 4W 51 5 RD 4Z510J 1 22 RESONATOR CERAMIC CR1 4 00MTS 5P4R00MTS 1 23 IC REGULATOR VL1 MC7905C 1MC7905C 1 24 TRANSIST...

Страница 31: ...30 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 ...

Страница 32: ...200 HOLDER HV CAPACITOR SECC T0 6 1 F20 3518302200 CAPACITOR HV 2100VAC 0 98UF 187 1 F21 3518400900 DIODE HV AS HVR 1X 30B 187 1 F22 3518701100 FUSE HV 5KV 0 55A HV 41A55 02 1 F23 3518121930 TRANS HV R1S570 EA00 1 KOR 6NFB3S 3518119880 R1S580 EA00 1 KOR 6NFB5S F24 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 4 F25 3510316000 BASE SBHG T0 7 1 F26 7112401011 SCREW TAPPING T1 TRS 4 10 MFZN 5 F27 351...

Страница 33: ...S M NO R6NFB3S001 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 Apr 2005 ...

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