Daewoo KOR-63D59A Microwave Oven User Manual


 
15
Replace high volt-
age transformet
NO
YES
YES
NO Continuity
Continuity in
the reverse
direction.
NO
Continuity
Poor continuity
NO Good
Good
Does the fan motor work when you
shut the door and turn the timer?
Replace or repair oven lamp,
turntable motor.
Continuity
Continuity
Replace high
voltage diode.
Replace
magnetron.
Replace high
voltage
transformer
Replace
magnetron.
Does the oven lamp light?
Does the turntable turn?
Check continuity filament tap
(3.3V) of high voltage.
Check the diode for continuity
in the reverse and normal
directions.
If microwave do not oscillate,
check continuity of filament
of magnetron.
Check the isolation of filament
winding of high voltage trans-
former.
Meter with 6V or higher voltage
batteries should be used to
check the normal direction resis-
tance of the diode.
Normal reading
should be
approx. 0