Page 165 - Electronic Mechanic - TP - Volume - 2
P. 165

ELECTRONICS MECHANIC - CITS



           EXERCISE 161: Monitor and check dismantling of various

                                      parts, wiring, tracing of    varius controls

                                      of microwave oven



            Objectives

           At the end of this exercise you shall be able to
           •  to understand and Identify  parts of Microwave oven
           •  to dismantle all the parts as per the manual
           •  to Trace the various controls in the Microwave oven.


           Requirements


           Tools/Materials
           •  Precision screwdriver set   - 1 Set.             •  Replacement parts            - as reqd.
           •  Tweezers                    - 1 Pair.            •  Magnifying glass             - 1 No.
           •  Plastic opening tools       - 1 Set.             •  Digital Multimeter with probes    - 1 No.
           •  Heat gun                    - 1 No.              •  User Manual of the given
           •  soldring iron               - 1 No.                 Microwave oven               - 1 No.
           •  desoldring pump             - 1 No.              •  Microwave oven of any
                                                                  Brand (1000 W)               - 1 No.

           Procedure

           Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors (all of which are
           contained in one assembly)
                  Parts                      Explanation Photo                          Explanation





                                                                               1   Disconnect all lead wires from
                                                                                 the magnetron and lamp.








             Magnetron, Motor
               Assembly and                                                    2  Remove a screw securing air
                  Lamp                                                           cover.









                                                                               3  Remove the air cover.








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