Samsung MW5490W Service Manual - Page 7

4. Disassembly and Reassembly 4-1 Replacement of Magnetron, Motor Assembly and Lamp Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors (all of which are contained in one assembly). Lamp Cover Air Thermo S/W 1. Disconnect all lead wires from the magnetron and lamp. 2. Remove the air cover. 3. Remove screws securing the magnetron to the wave guide. 4. Take out the magnetron very carefully. 5. Remove tow screws from the back panel of fan motor assembly. 6. Take out the fan motor assembly. 7. Remove the oven lamp by pulling out from hole of air cover. Fan Motor Screw NOTE1: When removing the magnetron, make sure that its antenna does not hit any adjacent parts, or it may be damaged. NOTE2: When replacing the magnetron, be sure to remount the magnetron gasket in the correct position and make sure the gasket is in good condition. Magnetron H. V. Capacitor H. V. Trans 4-2 Replacement of High Voltage Transformer 1. Discharge the high voltage capacitor. 2. Disconnect all the leads. 3. Remove the mounting bolts. 4. Reconnect the leads correctly and firmly. Samsung Electronics 4-1