Disassembly And Reassembly - Samsung M308R Service Manual

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).
1. Disconnect all lead wires from the magnetron.
2. Remove the magnetron supporter.
3. Remove the air cover.
4. Remove screws securing the magnetron to the wave guide.
5. Take out the magnetron very carefully.
6. Remove screws from the back panel.
7. Take out the fan motor.
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.
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.
Servicemen should remov their watches whenever working close to or replacing the magnetron.
There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH
VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work on or near
these circuits with the oven energized.
DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron.
Samsung Electronics
PRECAUTION
PRECAUTION
4-1