LG LMC1575ST Service Manual

5-15
Abnormal
normal
(TROUBLE 2) Oven does not operate at all, Display window does not display any figures, and no input is accepted.
CONDITION CHECK RESULT CAUSE REMEDY
1. Fuse blows. Continuity.
No continuity.
Continuity.
Shorted contact at the
primary switch.
Replace fuse,
Latch board assembly
and main PCB
No continuity.
Defect inverter
Replace inverter
Defect magnetronAbnormal Replace magnetron
Malfunction of the
monitor switch.
Replace fuse,
Latch board assembly
and main PCB
Check continuity of
monitor switch (with
door closed).
Check continuity of
primary switch (with
door opened).
check inverter
(refer page 5-15)
Check magnetron
Replace fuse
Continuity.
Malfunction of secondary
switch.
Replace fuse,
Latch board assembly
and main PCB
No continuity.
Check continuity of
secondary switch (with
door opened).

LG LMC1575ST Specifications

General

Style	counter top
Color	stainless steel
Total Capacity	1.5 cu. ft.
Convection	no
Power Levels	10
Sensor Cooking	yes
Quick Start	no
Timer	yes
Interior Light	yes
Microwave Power	1, 250 watts
Voltage	120 volts
Current	15a

Weight and Dimensions

Depth	17 inch
Height	12 13/100 inch
Width	21 41/100 inch