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22LT380C, 22LT380H (CHASSIS:LD2AY) - LG TV Service Manual (repair manual). Page 40

Read LG 22LT380C / 22LT380H (CHASSIS:LD2AY) Service Manual online

Normal
voltage?
Check various 
voltages of Power 
Board 
( 3.5V,12V,20V or 
24V…)
No Video/
No audio
Check and 
replace 
MAIN B/D
Y
Replace Power 
Board and repair 
parts
N
End
Standard Repair Process
A. Video error
No video/ No audio 
☞A4
Established
date 
Revised date 
2/13
LCD  TV
Error
symptom
2
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