LG LFX21960ST, Training Manual

Page: 6 / 128

REFRIGERATOR CONTENTS
CONTENTS, continued
PCB CIRCUITS 49
Power Circuit 49
Oscillator Circuit 50
Reset Circuit 50
Load Drive Circuit 51
Freezer Fan Motor Drive Circuit 51
Door Open Detection Circuit 52
Temperature Sensor Circuit 52
Refrigerator Damper Circuit 53
Dispenser Input Circuit 53
Temperature Co
mpensation
Circuit 53
Temperature Compensation Table 54
Freezer Sensor Resistance Specification 54
Display Light and Button Circuit 55
SCHEMATICS 56
Circuit Diagram 56
Main Board Layout 57
58
Main Board Parts List
Display Board Schematic
59
Display Board Parts Layout 6
0
Display Board Parts List 6
0
EXPLODED VIEWS 6
1
Case Parts 6
1
Freezer Parts 6
2
Refrigerator Parts 6
3
Door Parts 6
4
Ice and Water Parts 6
5
Icemaker Parts 6
6
Dispenser Parts 6
7
PARTS LIST
68
NOTES 7
5
APPENDICES 78
LFX21960ST/LFX25960xx Page 6 of 75 TRAINING MANUAL