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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 and lamp.
2.
Remove a screw securing air cover.
3.
Remove the air cover.
4.
Remove screws securing the magnetron to the wave
guide.
5.
Take out the magnetron very carefully.
6.
Remove tow from the back panel of fan motor
assembly.
7.
Take out the fan motor assembly.
8.
Remove the oven lamp by rotating to pull out from hole of
air cover.
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 remove their watches whenever working close to or replacing the magnetron.
There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the
HIGHVOLTAGE 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.
H.V Capacitor
Screw
Fan Motor
Thermo S/W
Cover Ai
r
Magnetron
H. V. Trans
