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manual abstract
4. When the 20A fuse is blown due to the operation of the monitor switch; replace primary interlock switch, secondary interlock switch and interlock monitor switch. 5. After repair or replacement of parts, make sure that the screws are properly tightened, and all electrical connections are tightened. 6. Do not operate without cabinet. CAUTION : Service personnel should remove their watches whenever working close to or replacing the magnetron. WARNING : When servicing the appliance, take care when touching or replacing high potential parts because of electrical shock or exposing microwave. These parts are as follows - HV Transformer, Magnetron, HV Capacitor, HV Diode. 11 1. To remove cabinet 1) Remove three screws on cabinet back. 2) Push the cabinet backward. 2. To remove door assembly 1) Remove two screws which secure the stopper hinge top. 2) Remove the door assembly from top plate of cavity. 3) Reverse the above for reassembly. NOTE : After replacing the door assembly, perform a check of correct alignment with the hinge and cavity front plate. 12 3. To remove door parts. REF NO. PART CODE PART NAME DESCRIPTION Q TY REMARK A01 3512205100 FRAME DOOR ABS SG-175, SG-0760D 1 KOR-180A 3512203900 1 KOR-181G A02 3517007400 BARRIER-SCREEN*O SAN T1.5 1 KOR-180A 3517005320 1 KOR-181G A03 3515204400 STOPPER HINGE *T AS KOR-162J0A 1 A04 3511710500 DOOR PAINTING AS KOR-180A 1 A05 3517005200 BARRIER-SCREEN*I PE T0.1 1 A06 3512301800 GASKET DOOR PP 1 A07 3513101400 HOOK POM 1 A08 3515101900 SPRING HOOK PW-1 1 (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. (6) Remove the barrier screen outer from door frame. (7) Reverse the above steps for reassembly. 13 4. Method to reduce the gap between the door seal and the oven front surface. (1) To reduce gap located on part A . Loosen two screws on stopper hinge top, and then push the door to contact the door seal to oven front surface. Tighten two screws. (2) To reduce gap located on part B . Loosen two screws on stopper hinge under, and then push the door to contact the door seal to oven front surface. Tighten two screws. NOTE : A small gap may be acceptable if the microwave leakage does not exceed 4mW/cm2. 14 5. To remove control panel parts. REF NO. PART CODE PART NAME DESCRIPTION Q TY REMARK A01 3518522800 3518522810 SWITCH MEMBRANE KOR-180A0A 1 KOR-181G2A 1 A02 3516726000 3516719100 CONTROL PANEL ABS AF-348, VT-0826 1 1 KOR-180A KOR-180G A03 PKMPMSXL00 PCB AS KOR-161G2A 1 A04 7122401211 SCREW TAPPING T2S TRS 4X12 MFZN 4 A05 3513702800 LEVER DOOR OPEN PP 1 A06 441G430171 BUTTON SPRING SWP DIA 0.7 1 A07 3516909600 BUTTON DOOR OPEN ABS AF-348, VT-0826 1 (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. (4) Disconnect membrane tail from the connector of the PCB assembly. (5) Detach membrane from the control panel. (6) Remove door open button and button spring from the control panel. (7) Reverse the above steps for reassembly. 15 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 on magnetron, check the microwave leakage. It shall not exceed 4mW/cm2 for a fully assembled oven with door normally closed. 6. To remove high voltage capacitor. 1) Remove a screw which secure the grounding ring terminal of the H.V. diode and the capacitor holder. 2) Remove the H.V. diode from the capacitor holder. 3) Reverse the above steps for reassembly. High voltage circuit wiring 7. To remove magnetron. 1) Remove a screw which secure the magnetron. 2) Remove the magnetron. 3) Reverse the above steps for reassembly. 16 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. 5) Remove the motor shaded pole. 6) Reverse the above steps for reasembly. 9. To remove H.V.transformer. 1) Remove four screws holding the H.V.transformer. 2) Remove the H.V.transformer. 3) Reverse the above steps for reassembly. 17 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 When the door is closed, the hook locks the oven door. If the door is not closed properly, the oven will not operate. When the door is closed, the hook pushes the button of the microswitch. Then the button of the primary interlock switch bring it under O...