7-27
CONDITION
CHECK
RESULT
CAUSE
REMEDY
No microwave
oscillation.
No continuity.
Continuity.
Defective P.C.B
assembly
Replace P.C.B
assembly
Disconnect the
wire leads from
relay 8 and
check continuity
of relay 8.
(Operate the
unit)
Abnormal
normal
Defective high
voltage
transformer.
Replace high
voltage
transformer .
Check high vol-
tage transformer
normal
normal
Abnormal
Defective high
voltage Diode.
Replace high
voltage Diode.
Check high vol-
tage diode.
Abnormal
Defective high
voltage capacitor.
Replace high
voltage capacitor.
Check high vol-
tage capacitor.
Abnormal
Defective
magnetron.
Replace
magnetron .
Check
Magnetron.
(TROUBLE 5) No microwave oscillation even though oven lamp and fan motor run
(Display operates properly)
Output is full power
when you set lower
power level.
Abnormal.
Defective PCB
assembly.
Replace PCB
assembly.
Disconnect the
wire leads from
relay 8 and check
continuity relay 8.
(Operate the unit)
NOTE: * Make sure the wire leads are in the correct position.
* When removing the wire leads from 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.
