Read LG 47LH9000 (CHASSIS:LD91I) Service Manual online
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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
26. AV2 No Audio Out Problem
Check the Headphone Cable
YES
Replace MAIN B'D
IC702
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
Replace MAIN B'D JK700
NO
YES
Check the Trouble Shooting Guide
Related to Audio Problem
NO
27. Headphone No Audio Problem
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