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SAFETY AND PRECAUTIONS

1. FOR SAFE OPERATION

Damage that allows the microwave energy (that cooks or heats the food) to escape will result in poor cooking and may cause
serious bodily injury to the operator.
IF ANY OF THE FOLLOWING CONDITIONS EXIST, OPERATOR MUST NOT USE THE APPLIANCE. 
(Only a trained service personnel should 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 gasket plate and oven cavity surface should be kept clean.
No grease, soil or spatter should be allowed to build up on these surfaces or inside the oven.
DO NOT ATTEMPT TO OPERATE THIS APPLIANCE WITH THE DOOR OPEN. The microwave oven has concealed switches
to make sure the power is turned off when the door is opened. Do not attempt to defeat them.
DO NOT ATTEMPT TO SERVICE THIS APPLIANCE UNTIL YOU HAVE READ THIS SERVICE MANUAL.

2. FOR SAFE SERVICE PROCEDURES

1) If the oven is operative prior to servicing, a m icrowave em ission check should be perform ed prior to servicing the oven.
2) If any certified oven unit is found to servicing, a m icrowave em ission check should be perform ed prior  to servicing the oven.

(a) inform  the m anufacturer, im porter or assem bler,
(b) repair the unit at no cost to the ow ner,
(c) attem pt to ascertain the cause of the excessive leakage,
(d) tell the ow ner of the unit not to use the unit until the oven has been brought into com pliance.

3) If the oven operates with the door open, the service person should tell the user not to  operate the oven and contact the

m anufacturer im m ediately.

IMPORTANT

T he w ire in this m ains lead coloured in accordance w ith the following code.

G reen-and-yellow: E arth
B lue

: N eutral

B row n

: Live

A s the colours of the w ires in the m anins lead of this appliance m ay not correspond w ith the coloured m arkings 
identifying the term inals in your plug, proceed as follow s.
T he w ire which is coloured green-and-yellow  m ust be connected to the term ianl in the plug which is m arked w ith 
the letter ‘E’ or by earth sym bol or green-and-yellow.
T he w ire which is coloured blue m ust be connected to the term inal w hich is m arked w ith the letter ‘N ’ or coloured black.
T he w ire which is coloured brow n m ust be connected to the term inal w hich is m arked w ith the letter ‘L’ or coloured red.

T his oven is designed for counter-top use only.

NOTE

Summary of Contents for KOR-630A0S

Page 1: ...Service Manual Microwave Oven Model KOR 630A0S KOR 860A0S KOR 860A0N DAEWOO ELECTRONICS CO LTD S M No R630A0S002...

Page 2: ...tron or other microwave source and make repairs as necessary 1 Interlock operation 2 Proper door closing 3 Seal and sealing surfaces arcing wear and other damage 4 Damage to or loosening of hinges and...

Page 3: ...certified 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...

Page 4: ...PPROX 13 Kg 28 7 lbs TIMER 59 min 90 sec FUNCTION SELECTIONS MICROWAVE POW ER SELECTIONS 10 LEVELS CAVITY VOLUME 0 7 Cu Ft MODEL KOR 860A0S KOR 860A0N POW ER SUPPLY 230V 50Hz 860A0S 220V 50Hz 860A0N S...

Page 5: ...EXTERNAL VIEW 1 OUTER DIMENSION KOR 630A KOR 860A 465 279 360 495 294...

Page 6: ...Protects the microwave 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 hea...

Page 7: ...reheat 5 More Used to add time to cooking 6 Less Used to remove time from cooking 7 Auto Defrost Used to defrost foods for weight 8 Power Used to set power level 9 Defrost Used to defrost foods for ti...

Page 8: ...of 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 a...

Page 9: ...LEAR 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 pad once more If the oven door i...

Page 10: ...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 11: ...PTION Q TY REMARK A01 3512203810 FRAME DOOR ABS XR 401 H 2938 1 A02 3517003050 BARRIER SCREEN O ACRYL 1 A03 3515304610 SUPPORTER BARR S O PP 1 A04 3515204100 STOPPER HINGE T AS KOR 63150S 1 A05 351170...

Page 12: ...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 contact t...

Page 13: ...H 2938 1 B06 441G430171 SPRING BUTTON SW P DIA 0 7 1 B07 3516906910 BUTTON DOOR OPEN ABS XR 401 H 2938 1 REF NO PART CODE PART NAME DESCRIPTION Q TY REMARK B01 3518521300 SW ITCH MEMBRANE KOR 860A0S...

Page 14: ...sconnect membrane tail from the conector of the PCB assembly 5 Detach membrane from the control panel 6 Remove the door open button and button spring from the control panel 7 Reverse the above steps f...

Page 15: ...e the above steps for reassembly NOTE Never install the magnetron without the metallic gasket plate which is packed with each magnetron to prevent microwave leakage Whenever repair work is carried out...

Page 16: ...w 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 T...

Page 17: ...losed the hook pushes the lock lever downward The lock lever presses the button of the interlock monitor switch to bring it under OFF condition and presses the button of the secondary interlock switch...

Page 18: ...ormal Fuse again blows Replace NOTE 1 Replace NOTE 1 Replace NOTE 1 Replace Replace Check continuity of interlock monitor switch with door closed COM NC Check continuity of both primary and secondary...

Page 19: ...erlock and D O M switch Defective touch control circuit Faulty contacts of RELAY RY2 or open relay coil Adjust or Replace Adjust or Replace Replace Replace No Continuity 0 V Approx 15 VDC NOTE All the...

Page 20: ...ce Replace Replace Replace Replace No microwave oscillation Check continuity of high voltage fuse Check continuity of high voltage rectifier in forward and backward direction with DC m egger Check con...

Page 21: ...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 clear pad is touched 11 Oven lamp and turnt...

Page 22: ...tely 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 me...

Page 23: ...oor 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 unk...

Page 24: ...e 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 use...

Page 25: ...WIRING DIAGRAM...

Page 26: ...DC 2 IC1 PIN 35 T 20 ms 50Hz 3 IC1 PIN 31 OR 32 T 250 ns 4MHz NO MEASURE POINT WAVE FORM REMEDY REMARK 1 MP1 DC 5V 0 25V Replace VL1 EC1 ZD2 NO LOAD 2 MP2 DC 12V 2 0V Replace EC2 D12 13 14 NO LOAD PRI...

Page 27: ...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 cloc...

Page 28: ...2 PCB CIRCUIT DIAGRAM PRINTED CIRCUIT BOARD...

Page 29: ...3514315410 1 14 R ARRAY RA1 7P 6 1 8 100K J RA 87X104J 1 15 RESISTOR R1 R7 1 6W 330 5 RD AZ331J 7 16 RESISTOR R8 10 12 14 22 1 6W 1K 5 RD AZ102J 5 17 RESISTOR R11 20 21 1 6W 100K 5 RD AZ104J 3 18 RES...

Page 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...

Page 31: ...CREW TAPTITE TT3 TRS 4X8 MFZN O F20 3513003200 HOLDER HV CAPACITOR SECC T0 6 O F21 3518302200 CAPACITOR HV 2100VAC 0 98 F 187 O F22 3518400400 DIODE HV HVR 1X 3AB 12KV 187 O F23 3518701100 FUSE HV 5KV...

Page 32: ...ZN O F20 3513003200 HOLDER HV CAPACITOR SECC T0 6 O F21 3518112200 CAPACITOR HV 2100VAC 0 98 F 187 O F22 3518400400 DIODE HV HVR 1X 3AB 12KV 187 O F23 3518701100 FUSE HV 5KV 0 55A HV 41A55 02 O F24 35...

Page 33: ...ELECTRONICS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC E mail G7F00E web dwe co kr FAX 02 360 8184 TEL 02 360 8188 8180 PRINTED DATE J...

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