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LMVM2277ST
LG LMVM2277ST Product Training Guide
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130
LMVM2277ST
Blown Fuse
T-38
PROBLEM
SOLUTION
Fuse blows immediately
when door is closed.
Improper operation of
primary and secondary
interlock switches and/or
monitor switch. Check and
adjust as necessary.
Fuse blows immediately
when door is opened.
Fuse blows immediately
when
START
is pressed
with door closed.
Malfunction of high voltage
transformer circuit, including
transformer, diode,
capacitor, magnetron,
blower motor, or main board.
129
131
Table of Contents
Specifications
11
Switch Chart
12
Warranty
13
Safety and Warnings
14
Installation
18
Turntable Installation
20
Operating Instructions
24
Power Levels
31
Care and Cleaning
32
Grease Filters
36
Charcoal Filter
37
Oven Light
42
Disassembly and Repair
46
Main Board and Power Board
47
Main Board
48
Outer Case Removal
51
Door Interlock Switches
54
Stirrer Fan and Cover
65
Door Removal
67
Door Disassembly
71
Flat Plastic Connector
76
Ventilation Fan Motor
79
Turntable Motor
82
Humidity Sensor
84
Component Test Procedures
85
Transformer Test
86
Magnetron Test
88
Capacitor Test
90
Fan Motor
95
Low Voltage Transformer
97
High Voltage Diode
99
Ventilation Fan Motor
104
Humidity Sensor
106
Stirrer Fan Motor
108
Microwave Leak Test
110
Microwave Power (Traditional)
114
Microwave Power
115
Microwave Power (Alternate Method)
117
Checkout Procedures
129
Blown Fuse
130
Main PCB (Printed Circuit Board)
131
Troubleshooting Flowcharts
137
Chart a - no Power
138
Chart B - Power but Doesn't Run
139
Chart C - Runs but no Heat
140
Chart D - Runs but no Heat
142
Chart F - Power Supply
145
Exploded View
147
Parts List
148
Serial Numbers
150
Additional Information - Ohm's Law
152
Chart - Ohm's Law
153
Temperature Conversion
154
Other manuals for LG LMVM2277ST
Owner's Manual
36 pages
Service Manual
40 pages
Installation Instructions
19 pages
Specification Sheet
2 pages
Training Manual
66 pages
4
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LG LMVM2277ST Specifications
General
Brand
LG
Model
LMVM2277ST
Category
Microwave Oven
Language
English
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