Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo Micro Wave KOC-1BOKOS Daewoo_KOC-1B0K0S

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Daewoo_KOC-1B0K0S


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                     S/M No. : C1B0K0S003




Service Manual
 Microwave Oven
 Model : KOC-1B0K0S




DAEWOO ELECTRONICS CO., LTD.
http : //svc.dwe.co.kr       Apr. 2001
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 with the door open.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron 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 latches,
(5) Evidence of dropping or abuse.
(c) Before turning on power to the microwave oven for any service test or inspection within the microwave
generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper
alignment, integrity, and connections.
(d) Any defective or misadjusted components in 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 owner.
A microwave leakage check to verify compliance with the Federal performance standard should be
performed on each oven prior to release to the owner.




TABLE OF CONTENTS
  1. SAFETY AND PRECAUTIONS -------------------------------------------------------------------- 2
  2. SPECIFICATIONS -------------------------------------------------------------------------------------3
  3. EXTERNAL VIEW -------------------------------------------------------------------------------------3
    3-1. OUTER DIMENSION ---------------------------------------------------------------------------3
    3-2. FEATURE DIAGRAM --------------------------------------------------------------------------4
  4. INSTALLATION ---------------------------------------------------------------------------------------5
  5. CONTROL PANEL -----------------------------------------------------------------------------6
  6. DISASSEMBLY AND ASSEMBLY -----------------------------------------------------------------7
  7. INTERLOCK MECHANISM AND ADJUSTMENT------------------------------------------------17
  8. TROUBLE SHOOTING GUIDE ----------------------------------------------------------------18
  9. MEASUREMENT AND TEST ------------------------------------------------------------------------- 24
    9-1. MEASUREMENT OF THE MICROWAVE OUTPUT-----------------------------------24
    9-2. MICROWAVE RADIATION TEST --------------------------------------------------------25
    9-3. COMPONENT TEST PROCEDURE ------------------------------------------------------26
    9-4. COMPONENT ACTION ---------------------------------------------------------------------27
  10. WIRING DIAGRAM ---------------------------------------------------------------------------------28
  11. EXPLODED VIEW AND PARTS LIST ---------------------------------------------------------29
    11-1. DOOR ASSEMBLY------------------------------------------------------------------------------29
    11-2. CONTROL PANEL ASSEMBLY--------------------------------------------------------------29
    11-3. TOTAL ASSEMBLY-----------------------------------------------------------------------------29
  12. PRINTED CIRCUIT BOARD --------------------------------------------------------------------------33
  13. P.C.B. CIRCUIT DIAGRAM ------------------------------------------------------------------------------37




                                                       1
1. 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 micro-
   wave 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 microwave emission check should be performed
      prior to servicing the oven.
  2) If any 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 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, the service person should tell the user not to
      operate the oven and contact the manufacturer immediately.

  IMPORTANT
  The wire in this mains lead coloured in accordance with the following code.

          Green-and-yellow          : Earth
          Blue                      : Neutral
          Brown                     : Live

  As the colours of the wires in the mains lead of this appliance may not correspond with
  the coloured markings identifying the terminals in your plug, proceed as follows.
  The wire which is coloured green-and-yellow must be connected to the terminal in the plug
  which is marked with the letter `E' or by earth symbol or green-and-yellow.
  The wire which is coloured blue must be connected to the terminal which is marked with
  the letter `N' or coloured black.
  The wire which is coloured brown must be connected to the terminal which is marked with
  the letter `L' or coloured red.


  NOTE : This oven is designed for counter-top use only.



                                                 2
2. SPECIFICATIONS
    MODEL                              KOC-1B0K
    POWER SUPPLY                       230V~50Hz, SINGLE PHASE WITH EARTHING
                     MICROWAVE         1500W
    POWER            GRILL             1600W
    CONSUMPTION      CONVECTION        2300W
                     COMBINATION       3100W
    MICROWAVE ENERGY OUTPUT            1000W (IEC705)
    MICROWAVE FREQUENCY                2450MHz
    OUTSIDE DIMENSIONS (W X H X D) 560 x 344 x 542 mm (22.0 x 13.5 x 21.3 in.)
    CAVITY DIMENSIONS (W X H X D)      368.5 x 246 x 376.5 mm (14.5 x 9.7 x 14.8 in.)
    NET WEIGHT                         APPROX. 21.5 Kg ( 47.6 lbs.)
    TIMER                              60 minutes
    FUNCTION SELECTIONS                MICROWAVE/ GRILL/ CONVECTION/ COMBINATION
    POWER SELECTIONS                   10 LEVELS
    CAVITY VOLUME                      1.2 Cu.Ft.
l     SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.


3. EXTERNAL VIEW
3-1. OUTER DIMENSION




                Fig. 1 Front view                         Fig. 2 Side view
                                                    3
3-2. FEATURE DIAGRAM




 1. Door hook 



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