LG LMC1575ST Service Manual

(Page)
SAFETY PRECAUTIONS ------------------------------------------------------------------------------------------------------------------------------------------ Inside front cover
SPECIFICATIONS
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 1-1
CAUTIONS
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 2-1
INSTALLATION
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 3-1
OPERATING INSTRUCTIONS
--------------------------------------------------------------------------------------------------------------------------------------------------------- 4-1
FEATURES ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 4-1
CONTROL PANEL -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 4-1
OPERATING SEQUENCE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 4-2
SCHEMATIC DIAGRAM ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ 4-4
CIRCUIT DESCRIPTION ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 4-5
SERVICE INFORMATION ---------------------------------------------------------------------------------------------------------------------------------------------------------------- 5-1
TOOLS AND MEASURING INSTRUMENTS ------------------------------------------------------------------------------------------------------------------------------------------------------- 5-1
MICROWAVE LEAKAGE TEST -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 5-1
MEASUREMENT OF MICROWAVE POWER OUTPUT --------------------------------------------------------------------------------------------------------------------------------------- 5-3
DISASSEMBLY AND ADJUSTMENT ------------------------------------------------------------------------------------------------------------------------------------------------------------------ 5-4
INTERLOCK CONTINUITY TEST ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- 5-9
COMPONENT TEST PROCEDURE ----------------------------------------------------------------------------------------------------------------------------------------------------------------- 5-10
TROUBLE SHOOTING ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 5-12
Trouble shooting for inverter PCB --------------------------------------------------------------------------------------------------------------------------------------------------------------------- 5-18
EXPLODED VIEW -------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 6-1
CONTENTS

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