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42LH250C (CHASSIS:LD91Z) - LG TV Service Manual (repair manual). Page 61

Read LG 42LH250C (CHASSIS:LD91Z) Service Manual online

Check the SCART Cable
YES
Check MAIN B’D
C229, C230
MAIN B’D
C229 (Right Sound)
C230 (Left Sound)
signal ?
YES
NO
Replace MAIN B’D IC 100
AV1 Video OK ?
YES
Check MAIN B’D JK1100
Replace MAIN B’D JK1100
NO
YES
Making 
Revision 
2009. 2 . 1
LCD TV
Symptom
AV1 No Audio Problem
19~42LH250C
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