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47LD920 (CHASSIS:LD01I) - LG TV Service Manual (repair manual). Page 107

Read LG 47LD920 (CHASSIS:LD01I) Service Manual online

Check the Headphone Cable
YES
Replace MAIN B’D
IC700
MAIN B’D
R237 (Right Sound)
R238 (Left Sound)
signal ?
NO
YES
Replace MAIN B’D IC 100
Speaker Audio OK
YES
Check MAIN B’D JK700 or JK701
Replace MAIN B’D JK700 or JK701
NO
YES
Check the Trouble Shooting Guide
Related to Audio Problem
NO
Making 
Revision 
2009. 2 . 1
29/34
LCD TV
Symptom
Headphone No Audio Problem
<ALL MODELS>
26~42 LH2000
32~47LH3000/LH4000/LH5000
26LU5000
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