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47LD920 (CHASSIS:LD01I) - LG TV Service Manual (repair manual). Page 106

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Check the SCART Cable
YES
Replace MAIN B’D
IC1103
MAIN B’D
R250 (Right Sound)
R251 (Left Sound)
signal ?
NO
YES
Replace MAIN B’D IC 100
Speaker Audio OK
YES
Check MAIN B’D JK1101
Replace MAIN B’D JK1101
NO
YES
Check the Trouble Shooting Guide
Related to Audio Problem
NO
Making 
Revision 
2009. 2 . 1
28/34
LCD TV
Symptom
AV2 No Audio Out Problem
<ALL MODELS>
26~42 LH2000
32~47LH3000/LH4000/LH5000
26LU5000
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