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(TROUBLE 3)    No microwave oscillation even though fan motor rotates.

CONDITION

CHECK

RESULT

Check continuity of high 

voltage capacitor terminals

with wires removed

Replace high voltage fuse

Continuity

CAUSE

Defective high

voltage trans-

former

REMEDY

Replace

No

microwave

oscillation

Check continuity of high

voltage fuse

No Continuity

Check continuity of high voltage

rectifier in forward and backward

direction with DC megger

Continuity in

backward

direction

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-

nal of high voltage transformer

No

Continuity

Defective high

voltage trans-

former

Replace

Check D.C. voltage being sup-

plied to RELAY (RY1) coil

0 V

Defective touch

control circuit

Replace

Approx

15 VDC

Faulty

contacts or

RELAY (RY1)

or open

relay coil

Replace

Содержание KOR-86DB7P

Страница 1: ...CO LTD S M No R861H0PAL2 http svc dwe co kr Dec 2003 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...

Страница 2: ...n the interlock 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 own...

Страница 3: ...cturer 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 bee...

Страница 4: ...CTIONS 10 LEVELS CAVITY VOLUME 0 9 Cu Ft SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE MODEL KOR 86DB7P POWER SUPPLY 230V 50Hz SINGLE PHASE WITH EARTHING POWER MICROWAVE 1300W CONSUMPTION GRILL...

Страница 5: ...4 EXTERNAL VIEW 1 OUTER DIMENSION 495 294 388 1 KOR 861H0P 2 KOR 86DB7P...

Страница 6: ...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...

Страница 7: ...ime are displayed 3 One touch Used to cook or reheat specific quantities of food 4 More Used to add time to cooking 5 Less Used to reduce time from cooking 6 Auto Defrost Used to defrost foods for wei...

Страница 8: ...rost foods for time 14 Clock 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 r...

Страница 9: ...er than those specified If the supply cord is damaged it must be replaced by the manufacturer or its service agent or a similarity quali fied person in order to avoid a hazard 6 Examine the oven after...

Страница 10: ...g time ends 10 When the STOP CLEAR pad is touched during the oven operation the oven stops cooking and all information retained To erase all information except the present time touch the STOP CLEAR pa...

Страница 11: ...ing 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 replac...

Страница 12: ...ward 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...

Страница 13: ...KOR 861H0C REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK A01 3512204190 FRAME DOOR ABS SG 175 1 A02 3517005780 BARRIER SCREEN 0 PET T0 125 1 A04 3515204100 STOPPER SINGE T AS KOR 63150S 1 A05 351...

Страница 14: ...osen 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...

Страница 15: ...KOR 860A0S 1 B04 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 1 B05 3513702710 LEVER DOOR OPEN ABS XR 401 H 2938 1 B06 441G430171 SPRING BUTTON SWP DIA0 7 1 B07 3516906900 BUTTON DOOR OPEN ABS XR 401 H...

Страница 16: ...ge 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 metalli...

Страница 17: ...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...

Страница 18: ...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 u...

Страница 19: ...the terminals and power cord before check the parts listed below CONDITION CHECK Check continuity of interlock monitor switch with door closed COM NC Check continuity of both primary and secondary int...

Страница 20: ...ity Adjust or replace Check D C voltage being sup plied 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 n...

Страница 21: ...ion 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 hi...

Страница 22: ...time while counting down 9 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 alt...

Страница 23: ...ssel 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 foll...

Страница 24: ...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...

Страница 25: ...the 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 b...

Страница 26: ...25 H V FUSE WIRING DIAGRAM...

Страница 27: ...N 31 OR 32 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...

Страница 28: ...27 Measure Point MP1 MP2...

Страница 29: ...en 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 Poin...

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

Страница 31: ...04J 3 18 RESISTOR R13 1 6W 100K 5 RD AZ101J 1 19 RESISTOR R15 17 1 6W 10K 5 RD AZ103J 3 20 RESISTOR R18 1 6W 1M 5 RD AZ105J 1 21 RESISTOR R19 1 4W 51 5 RD AZ510J 1 22 REGULATOR VL1 MC7905C 1MC7905C 1...

Страница 32: ...st 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 allowa...

Страница 33: ...31 Measure Point MP1 MP2 32...

Страница 34: ...n 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...

Страница 35: ...2 PCB CIRCUIT DIAGRAM 2 PCB CIRCUIT DIAGRAM 34...

Страница 36: ...4J 1 19 RESISTOR R14 1 6W 1M 5 RD AZ105J 1 20 RESISTOR R15 18 20 1 6W 4 7K 5 RD AZ472J 3 21 RESISTOR R17 1 4W 51 5 RD 4Z510J 1 22 RESONATOR CERA CR1 CRT 4 00MS 5P4R00MTS 1 23 IC REGULATOR VL1 MC7805C...

Страница 37: ...36 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 38: ...3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 4 F23 3510311900 BASE SBHG T0 8 1 F24 7112401011 SCREW TAPPING T2 TRS 4X10 MFZN 5 F25 3512100900 FOOT PP DASF 130 2 F26 7272400811 SCREW SPECIAL TT3 TRS...

Страница 39: ...14210 TRANS HV DW N90P0 86TC 1 F22 3516003700 SPECIAL SCREW TT3 HEX 4X8 FLG MFZN 4 F23 3510311900 BASE SBHG T0 8 1 F24 7112401011 SCREW TAPPING T2 TRS 4X10 MFZN 5 F25 3512100900 FOOT PP DASF 130 2 F26...

Страница 40: ...S M NO R861H0PAL2 DAEWOO ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC PRINTED DATE Dec 2003...

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