DAEWOO ELECTRONICS KOR-63D59A User Manual download pdf (Page 16)

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. 0Ω

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