84LA980T-DC (CHASSIS:LT34E) - LG TV Service Manual (repair manual). Page 105

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Standard Repair Process Detail Technical Manual
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C. Audio error_No audio/Normal video
A20
Established 
date 
Revised 
Error 
symptom
Content
LCD  TV
2013.01.31
Checking method in menu when there is no audio
<ALL MODELS>
A20
date 
Content
Checking method
1. Press the Setting button on the remote controller
g
2. Select the Sound function of the Menu
3. Select the Sound Setting
4. Select TV Speaker
p
A20
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