Sunbeam MA-6400B2 - TROUBLE 3 No microwave oscillation even though oven lamp and fan motor run

5-14
CONDITION CHECK RESULT CAUSE REMEDY
No microwave
oscillation.
No continuity.
Continuity.
Abnormal
Defective high
voltage
transformer.
Replace high
voltage
transformer.
Normal
Defective timer
motor.
Replace timer
motor.
Check the timer
switch of timer
motor.(cooking
state)
Check high vol-
tage transformer
Abnormal
Defective high
voltage capacitor.
Replace high
voltage capacitor.
Normal
Check high vol-
tage capacitor.
Abnormal
Defective high
voltage diode.
Replace high
voltage diode.
Normal
Check high vol-
tage diode.
Abnormal
Defective
magnetron.
Replace
magnetron.
Check
magnetron.
(TROUBLE 3) No microwave oscillation even though oven lamp and fan motor run.
NOTE : • Make sure the wire leads are in the correct position.
• When removing the wire leads from the parts, be sure to grasp the connector, not the wires.
• When removing the magnetron, be sure to install the magnetron gasket in the correct position
and in good condition.