LG LMC1575ST Service Manual

5-14
1. Incomplete segments.
• Segment missing.
• Partial segment missing.
• Digit flickering (NOTE: Slight flickering is normal.)
2. Colon does not turn.
3. A distinct change in the brightness of one or more numbers in display.
4. One or more digits in the display are not lighting.
5. Display does not count down with time blinking or up with clock operation.
6. Display obviously jumps in time while counting down.
7. Display counts down too fast while cooking.
8. Display time of day does not reappear when cooking is finished.
Error Code Description : When the following Error Code displays, you can not use any button.
"F-3" Touch button Error Code
-If the main PCB can not receive any touch button signal, then Error F-3 is displayed.
CONDITION CHECK RESULT CAUSE REMEDY
Everything works as
specified.
Continuity.
No continuity.
Still have trouble.
Defective Door assembly
1. Defective PCB assembly.
2. Defective Door harness.
Loose connection.
Defective PCB assembly.
Replace Door assembly
1. Replace PCB
assembly.
2. Replace Door
Connect them tightly.
Replace PCB assembly.
Replace Door assembly
and check operation.
Check the conn-ection
between Door assembly
harness and PCB
assembly.
2. Some inputs cannot be
programmed.
1. No input can be
programmed.
3. Display shows a number
or figure different from
one touched.
4. Random programming
when touching other
button.
5. Display is fixed at some
figure and can not
accept any input.
(TROUB LE 1) The following visual conditions indicate a probable defective control circuit.

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