Daewoo KOR-631G0A Service Manual
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Daewoo KOR-631G0A Service Manual

Daewoo KOR-631G0A Service Manual

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All manuals and user guides at all-guides.com
Service Manual
Microwave Oven
Model: KOR-631G0A
DAEWOO ELECTRONICS CO., LTD.
KOR-631H0A
KOR-861G0A
KOR-861H0A

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Summary of Contents for Daewoo KOR-631G0A

  • Page 1 All manuals and user guides at all-guides.com Service Manual Microwave Oven Model: KOR-631G0A KOR-631H0A KOR-861G0A KOR-861H0A DAEWOO ELECTRONICS CO., LTD.

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com 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 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) Dam age to or loosening of hinges and latches, (5) Evidence of dropping or abuse.

  • Page 3: Safety And Precautions

    All manuals and user guides at all-guides.com 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 4: Specifications

    All manuals and user guides at all-guides.com SPECIFICATIONS M O D EL K O R -63BG /H KO R -86BG /H 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...

  • Page 5: External View

    All manuals and user guides at all-guides.com EXTERNAL VIEW 1. OUTER DIMENSION (KOR-63BG,H/KOR-86BG,H)

  • Page 6: Feature Diagram

    All manuals and user guides at all-guides.com EXTERNAL VIEW 2. FEATURE DIAGRAM 1. DOOR SEAL Door seal maintains the microwave within the oven cavity and prevents microwave leakage. 2. DOOR HOOK W hen door is closed, it will automatically lock shut. If door is opened while oven is operating, magnetron tube will immediately stop operating.

  • Page 7: Control Panel

    All manuals and user guides at all-guides.com EXTERNAL VIEW 3. CONTROL PANEL 1) KOR-63BG0A / 86BG0A 1. Time set pad - Used to set the cooking time and the present time. 2. Display - Cooking time, power level, indicators and present tim e are displayed. 3.
  • Page 8 All manuals and user guides at all-guides.com EXTERNAL VIEW 3) KOR-63BH0A / 86BH0A 1. Time set pad - Used to set the cooking time and the present time. 2. Display - Cooking time, power level, indicators and present tim e are displayed. 3.

  • Page 9: Installation

    All manuals and user guides at all-guides.com INSTALLATION 1. Steady, flat location This microwave 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

    All manuals and user guides at all-guides.com OPERATIONS AND FUNCTIONS 1. Connect the main 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 must always be in place during cooking.

  • Page 11: Disassembly And Assembly

    All manuals and user guides at all-guides.com 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.
  • Page 12 All manuals and user guides at all-guides.com DISASSEMBLY AND ASSEMBLY 1. To remove cabinet 1) Remove three screws on cabinet back. 2) Push the cabinet backward. 2. To remove door assem bly 1) Remove a screw which secure the stopper hinge top. 2) Remove the door assembly from top plate of cavity.
  • Page 13 All manuals and user guides at all-guides.com DISASSEMBLY AND ASSEMBLY 3. To remove door parts. 1) KOR-63BG0A/63BH0A REF. NO PA RT CODE PART N AME DESCRIPTION Q TY REMARK A 01 3512202070 FR A M E D O O R A BS X R -401 A 02 3517003050...
  • Page 14 All manuals and user guides at all-guides.com DISASSEMBLY AND ASSEMBLY 1) Remove the gasket door from door plate. 2) Remove the barrier screen inner from door plate. 3) Remove the door frame from door plate. 4) Remove the stopper hinge top from door plate. 5) Remove the spring and the hook.
  • Page 15 All manuals and user guides at all-guides.com DISASSEMBLY AND ASSEMBLY 5. To remove control panel parts. 1) KOR-63BG0A/63BH0A REF.NO PART CODE PART NAM E DESCRIPTION REM ARK 3518521020 K OT-63BG 0A B 01 S W ITC H M E M B R AN E 3518521030 K OR -63BH 0A B 02...
  • Page 16 All manuals and user guides at all-guides.com DISASSEMBLY AND ASSEMBLY 1) Remove the screw which secure the control panel, push up two snap fits and draw forward the control panel assembly. 2) Remove the door open lever from the control panel. 3) Remove four screws which secure the PCB assembly to control panel.
  • Page 17 All manuals and user guides at all-guides.com DISASSEMBLY AND ASSEMBLY 8. To remove wind guide assembly. 1) Remove a screw which secure the wind guide assembly. 2) Draw forward the wind guide assembly. 3) Pull the fan from the motor shaft. 4) Remove two screws which secure the motor shaded pole.

  • Page 18: Interlock Mechanism And Adjustment

    All manuals and user guides at all-guides.com INTERLOCK MECHANISM AND ADJUSTMENT The door lock mechanism is a device which has been specially designed to completely eliminate microwave radiation when the door is opened during operation, and thus to perfectly prevent the danger resulting from the leakage of microwave. (1) Primary interlock switch W hen the door is closed, the hook locks the oven door.

  • Page 19: Trouble Shooting Guide

    All manuals and user guides at all-guides.com 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 transformer, disconnect one lead wire from these parts and check continuity with the AC plug removed.
  • Page 20 All manuals and user guides at all-guides.com 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.
  • Page 21 All manuals and user guides at all-guides.com TROUBLE SHOOTING GUIDE ( TROUBLE 3 ) No microwave oscillation even though fan motor 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...
  • Page 22 All manuals and user guides at all-guides.com 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. Incomplete segments, 1) Segments missing. 2) Partical segments missing.

  • Page 23: Measurement And Test

    All manuals and user guides at all-guides.com MEASUREMENT AND TEST 1. MEASUREMENT OF THE MICROWAVE POWER OUTPUT Microwave output power can be checked by indirectly measuring the temperature rise of a certain amount of water exposed to the microwave as directed below. PROCEDURE 1.

  • Page 24: Microwave Radiation Test

    All manuals and user guides at all-guides.com MEASUREMENT AND TEST 2. MICROWAVE RADIATION TEST CAUTION 1. Make sure to check the microwave leakage before and after repair of adjustment. 2. Always start measuring of an unknown field to assure safety for operating personnel from microwave energy. 3.

  • Page 25: Component Test Procedure

    All manuals and user guides at all-guides.com MEASUREMENT AND TEST 3. COMPONENT TEST PROCEDURE High voltage is present at the high voltage terminal of the high voltage transformer during any cooking cycle. It is neither necessary nor advisable to attempt measurement 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

    All manuals and user guides at all-guides.com WIRING DIAGRAM...

  • Page 27: Printed Circuit Board

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD 1. CIRCUIT CHECK PROCEDURE 1. Low voltage transformer check The low voltage transformer is located on the P.C.B. Measuring condition: Input voltage: 120 V / Frequency: 60Hz Term inal Voltage LO AD N O LO A D 4 - 7...
  • Page 28 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD Measure Point...
  • Page 29 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD 3. W hen there is no microwave oscillation 1) W hen touching START pad, oven lamp does not turn on. Fan motor do not rotate, but cook indicator in display comes on.  Cause : RELAY 2 does not operate.

  • Page 30: Circuit Diagram

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD 2. P.C.B. CIRCUIT DIAGRAM 1) KOR-63BG0A/63BH0A...

  • Page 31: Location No

    All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD 3. P.C.B. LOCATION NO 1) KOR-63BG0A/63BH0A NAM E SYM BOL SPECIFIC ATION PART CODE Q 'TY B UZZE R B Z1 B M -20K 3515600100 C AR R AY CA 1 7P(6) 102 M 50V CN 6X B-102M C APAC ITO R ELE C...
  • Page 32 All manuals and user guides at all-guides.com PRINTED CIRCUIT BOARD 2) KOR-86BG0A/86BH0A NAM E SYM BOL SPECIFIC ATION PART CODE Q 'TY B UZZE R B Z1 B M -20K 3515600100 C AR R AY CA 1 7P(6) 102 M 50V CN 6X B-102M C APAC ITO R ELE C E C1...

  • Page 33: Exploded View And Parts List

    All manuals and user guides at all-guides.com EXPLODED VIEW AND PARTS LIST 1. DOOR ASSEMBLY Refer to Disassembly and assembly. 2. CONTROL PANEL ASSEMBLY Refer to Disassembly and assembly. 3. TOTAL ASSEMBLY...
  • Page 34 All manuals and user guides at all-guides.com EXPLODED VIEW AND PARTS LIST 1) KOR-63BG0A/63BA0A REF NO PART CO DE PART NAM E DESCR IPTIO N Q'TY A 00 3511710330 D O OR A S K OR -63B50S B 00 3516721430 C O NTR O L-PAN E L AS K OR -63BG 0A 3516721440...
  • Page 35 All manuals and user guides at all-guides.com EXPLODED VIEW AND PARTS LIST REF NO PART CO DE PART NAM E DESCR IPTIO N Q'TY 3513811700 LO CK P OM 3513601500 LA M P B L 125V 25W T25 C 5A H 187 7121400611 S C RE W TA P PIN G T2S PA N 4X6 M FZN...
  • Page 36 All manuals and user guides at all-guides.com EXPLODED VIEW AND PARTS LIST 2) KOR-86BG0A/86BH0A REF NO PART CO DE PART NAM E DESCR IPTIO N Q'TY A 00 3511710710 D O OR A S K OR -86B50S B 00 3516721130 C O NTR O L-PAN E L AS K OR -86BG 0A 3516721140...
  • Page 37 All manuals and user guides at all-guides.com EXPLODED VIEW AND PARTS LIST REF NO PART CO DE PART NAM E DESCR IPTIO N Q'TY 3513811700 LO CK P OM 3513601500 LA M P B L 125V 25W T25 C 5A H 187 7121400611 S C RE W TA P PIN G T2S PA N 4X6 M FZN...

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Kor-861g0aKor-861h0aKor-631h0a

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