Daewoo KOR-630A0A Service Manual
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Daewoo KOR-630A0A Service Manual

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Service Manual
Microwave Oven
Model: KOR-630A0A/1A
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).
DAEWOO ELECTRONICS CO., LTD.
S/M No. : R630A0A001
KOR-860A0A/1A
http://svc.dwe.co.kr

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  • Page 1 : 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). DAEWOO ELECTRONICS CO., LTD. http://svc.dwe.co.kr...

  • Page 2: Microwave Oven

    S/M No. : R630A0A001 Service Manual Microwave Oven KOG-867T Model • 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).

  • Page 3: Table Of Contents

    PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY (a) Do not operate or allow the oven to be operated w ith the door open. (b) M ake the following safety checks on all ovens to be serviced before activating the m agnetron or other m icrowave source, and m ake repairs as necessary: (1) Interlock operation, (2) Proper door closing, (3) Seal and sealing surfaces (arcing, wear, and other dam age), (4) Dam age to or loosening of hinges and latches, (5) Evidence of dropping or abuse.

  • Page 4: Safety And Precautions

    SAFETY AND PRECAUTIONS CAUTION This D evice is to be S erviced O nly by P roperly Q ualified S ervice P ersonnel. C onsult the S ervice M anual for Proper S ervice P rocedures to A ssure C ontinued S afety Operation and for Precautions to be Taken to Avoid Possible Exposure to E xcessive M icrow ave E nergy.

  • Page 5: Specifications

    SPECIFICATIONS M O D EL K O R -630A KO R -860A PO W E R SU P PLY 120V -60H z, SIN G LE PH AS E W ITH G R O U N D IN G M IC R O W AVE 1200W 1350W PO W E R...

  • Page 6: External View

    EXTERNAL VIEW 1. OUTER DIMENSION (KOR-630A/KOR-860A) 465/495 360/388...

  • Page 7: Feature Diagram

    EXTERNAL VIEW 2. FEATURE DIAGRAM 1. DOOR SEAL Door seal m aintains the m icrowave within the oven cavity and prevents m icrowave leakage. 2. DOOR HOOK W hen door is closed, it will autom atically lock shut. If door is opened while oven is operating, m agnetron tube will im m ediately stop operating.

  • Page 8: Control Panel

    EXTERNAL VIEW 3. CONTROL PANEL  1. Time set pad - Used to set the cooking tim e and the present tim e. 2. Display - Cooking tim e, power level, indicators and present tim e are displayed. 3. One touch - Used to cook or reheat specific quantities of food. 4.

  • Page 9: Installation

    INSTALLATION 1. Steady, flat location This m icrowave oven should be set on a steady, flat surface. 2. Leave space behind and side All air vents should be kept a clearance. If all vents are covered during operation, the oven may overheat and, eventually, cause oven failure.

  • Page 10: Operations And Functions

    OPERATIONS AND FUNCTIONS 1. Connect the m ain lead to an electrical outlet. 2. After placing the food in a suitable container, open the oven door and put it on the glass tray. The glass tray m ust always be in place during cooking. 3.

  • Page 11: Disassembly And Assembly

    DISASSEMBLY AND ASSEMBLY Cautions to be observed when trouble shooting Unlike many other appliances, the microwave oven is high-voltage, high-current equipment. It is completely safety during normal operation. However, carelessness in servicing the oven can result in an electric shock or possible danger from a short circuit. You are asked to observe the following precautions carefully.
  • Page 12 DISASSEMBLY AND ASSEMBLY 1. To remove cabinet 1) Rem ove three screws on cabinet back. 2) Push the cabinet backward. 2. To remove door assem bly 1) Rem ove a screw which secure the stopper hinge top. 2) Rem ove the door assem bly from top plate of cavity. 3) Reverse the above for reassem bly.
  • Page 13  Caution: In this Service 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) DISASSEMBLY AND ASSEMBLY 3.
  • Page 14 DISASSEMBLY AND ASSEMBLY 1) Rem ove the gasket door from door weld as. 2) Rem ove the barrier screen inner from door weld as. 3) Rem ove the door fram e from door weld as. 4) Rem ove the stopper hinge top from door weld as. 5) Rem ove the spring and the hook.
  • Page 15  Caution: In this Service 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) DISASSEMBLY AND ASSEMBLY 5.
  • Page 16 DISASSEMBLY AND ASSEMBLY 1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assem bly. 2) Rem ove the door open lever from the control panel. 3) Rem ove four screws which secure the PCB assem bly to control panel. 4) Disconnect m em brane tail from the connector of the PCB assem bly.
  • Page 17 DISASSEMBLY AND ASSEMBLY 8. To remove wind guide assembly. 1) Rem ove a screw which secure the wind guide assem bly. 2) Draw forward the wind guide assem bly. 3) Pull the fan from the m otor shaft. 4) Rem ove two screws which secure the m otor shaded pole. 5) Rem ove the m otor shaded pole.

  • Page 18: Interlock Mechanism And Adjustment

    INTERLOCK MECHANISM AND ADJUSTMENT The door lock m echanism is a device which has been specially designed to com pletely elim inate m icrowave radiation when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave. (1) Prim ary interlock switch W hen the door is closed, the hook locks the oven door.

  • Page 19: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE Following the procedure below to check if the oven is defective or not. 1) Check grounding before trouble checking. 2) Be careful of the high voltage circuit. 3) Discharge the high voltage capacitor. 4) W hen checking the continuity of the switches, fuse or high voltage transform er, disconnect one lead wire from these parts and check continuity with the AC plug removed.
  • Page 20 TROUBLE SHOOTING GUIDE CON DITION CHECK RESULT CAUSE REM EDY R eplace C heck con tinuity of D efective O utlet has m agn etron C ontinuity m agn etron proper voltage Fuse does not blow. O pen pow er R eplace C heck con tinuity of pow er supply cord...
  • Page 21 TROUBLE SHOOTING GUIDE ( TROUBLE 3 ) No m icrowave oscillation even though fan m otor rotates. CON DITION CHECK RESULT CAUSE REM EDY Replace Continuity Defective N o m icrowave C heck continuity of high high voltage oscillation voltage capacitor transform er term inals w ith w ires rem oved...
  • Page 22 TROUBLE SHOOTING GUIDE ( TRO UBLE 4 ) The follow ing visual conditions indicate a probable defective touch control circuit or m em brane sw itch assem bly. 1. Incom plete segm ents, 1) Segm ents m issing. 2) Partical segm ents m issing. 3) Digit flickering other than norm al display slight flickering.

  • Page 23: Measurement And Test

    MEASUREMENT AND TEST 1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT M icrowave output power can be checked by indirectly m easuring the tem perature rise of a certain am ount of water exposed to the m icrowave as directed below. PROCEDURE 1.

  • Page 24: Microwave Radiation Test

    MEASUREMENT AND TEST 2. MICROWAVE RADIATION TEST CAUTION 1. M ake sure to check the m icrowave leakage before and after repair of adjustm ent. 2. Always start m easuring of an unknown field to assure safety for operating personnel from m icrowave energy. 3.

  • Page 25: Component Test Procedure

    MEASUREMENT AND TEST 3. COMPONENT TEST PROCEDURE High voltage is present at the high voltage term inal of the high voltage transform er during any cooking cycle. It is neither necessary nor advisable to attem pt m easurem ent of the high voltage. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the capacitor.

  • Page 26: Wiring Diagram

    WIRING DIAGRAM 1) KOR-630A0A/KOR-860A0A...
  • Page 27 WIRING DIAGRAM 2) KOR- 630A1A/860A1A...

  • Page 28: Printed Circuit Board

    PRINTED CIRCUIT BOARD 1. CIRCUIT CHECK PROCEDURE 1. Low voltage transformer check The low voltage transform er is located on the P.C.B. M easuring condition: Input voltage: 120 V / Frequency: 60Hz Term inal Voltage LO AD N O LO A D 4 - 7 A C 12.6 V A C 14.7 V...
  • Page 29 PRINTED CIRCUIT BOARD M P1 M P2 Measure Point...
  • Page 30 PRINTED CIRCUIT BOARD 3. W hen there is no microwave oscillation 1) W hen touching START pad, oven lam p does not turn on. Fan m otor do not rotate, but cook indicator in display com es on.  Cause : RELAY 2 does not operate. refer to Circuit Diagram ( Point 3) - Check m ethod POINT STATE...

  • Page 31: Circuit Diagram

    PRINTED CIRCUIT BOARD 2. P.C.B. CIRCUIT DIAGRAM...

  • Page 32: Location No

     Caution: In this Service 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) PRINTED CIRCUIT BOARD 3.
  • Page 33  Caution: In this Service 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) PRINTED CIRCUIT BOARD 2) KOR-860A NAM E SYM BOL...

  • Page 34: Exploded View And Parts List

    EXPLODED VIEW AND PARTS LIST 1. DOOR ASSEMBLY Refer to Disassem bly and assem bly. 2. CONTROL PANEL ASSEMBLY Refer to Disassem bly and assem bly. 3. TOTAL ASSEMBLY(KOR-630A0A/860A0A)
  • Page 35 In this Service 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) EXPLODED VIEW AND PARTS LIST 1) KOR-630A0A REF NO PART CODE...
  • Page 36  Caution: In this Service 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) EXPLODED VIEW AND PARTS LIST 2) KOR-860A0A REF NO PART CODE...
  • Page 37 EXPLODED VIEW AND PARTS LIST 1. DOOR ASSEMBLY Refer to Disassem bly and assem bly. 2. CONTROL PANEL ASSEMBLY Refer to Disassem bly and assem bly. 3. TOTAL ASSEMBLY(KOR-630A1A/860A1A)
  • Page 38 REF NO PART CODE PART NAME DESCRIPTION Q'TY SUPPLY 3511710320 DO OR AS KOR-630A0S PKCPSW ZF00 CO NTROL-PANEL AS KOR-630A0A 3510801310 CA BINET PCM T0.6 G E 7S312X40A1 SPECIAL SCREW T1 TRS 4*10 SE MFZN 3516109000 CAVITY WELD AS KOR-63150S 3516109600...
  • Page 39  Caution: In this Service 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) EXPLODED VIEW AND PARTS LIST 2) KOR-860A1A REF NO PART CODE...

This manual is also suitable for:

Kor-630a1aKor-860a1aKog-867tKor-860a0a

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