5-18
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 4 and
check continuity
of relay 4.
(Operate the unit)
Abnormal
normal
Defective high
voltage
transformer and
H.V. Fuse.
Replace high
voltage
transformer and
H.V. Fuse.
Check H.V.
transformer and
H.V. Fuse.
Abnormal
Defective high
voltage capacitor.
Replace high
voltage capacitor.
Check H.V.
capacitor.
Abnormal
Defective high
voltage Diode.
Replace high
voltage Diode.
Check H.V.
diode.
normal
Abnormal
Defective
magnetron.
Replace
magnetron.
Check
Magnetron.
normal
(TROUBLE 5) No microwave oscillation even though oven lamp and fan motor run.
(Display operates properly)
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Содержание SolarDOM MP9485FR
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