5-15
CONDITION
CHECK
RESULT
CAUSE
REMEDY
1. Fuse blows.
Continuity.
No continuity.
Continuity.
Shorted contact at
the primary switch.
Replace primary
and monitor
switches.
No continuity.
Normal.
Defective high
voltage capacitor.
Replace high
voltage capacitor.
Fuse blows again
Defective high volt-
age transformer.
Replace high volt-
age transformer.
Malfunction of the
monitor switch.
Replace primary
and monitor
switches.
Check continuity
of monitor
switch (with
door closed).
Check continuity
of primary
switch (with
door opened).
Disconnect one
side of the wire
lead connected
from transformer
to the high
voltage
capacitor and
operate the unit.
Replace fuse
(TROUBLE 2) Oven does not operate at all ; Display window does not display any figures and
no input is accepted.
NOTE : All these switches must be replaced at the same time. Refer to page 5-6, 5-7
2. Fuse does not
blow.
No continuity.
No continuity.
Replace power
supply cord.
Defective mag-
netron thermostat.
Defective power
supply cord.
Replace mag-
netron thermostat.
Check continuity
of magnetron
thermostat.
Check continuity
of power supply
cord.
Continuity.
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Summary of Contents for MJ3284UAB
Page 31: ... 6 2 DOOR PARTS EV 13552A 13581A 14026A 14970A 13213A 13551C 13650A ...
Page 32: ... 6 3 CONTROL PANEL PARTS EV 24781A 26871T 26871M 24781S 250202 250201 249401 24941A ...
Page 34: ... 6 5 W102 43501A 466001 43500A 466003 44510A 466001 LATCH BOARD PARTS EV ...
Page 36: ... 6 7 647781 W101 56170D 63302A 63303A BASE PLATE PARTS EV ...
Page 37: ......
