32LH4000, 32LH4010, 32LH4020 (CHASSIS:LD91A) - LG TV Service Manual (repair manual). Page 65

Read LG 32LH4000 / 32LH4010 / 32LH4020 (CHASSIS:LD91A) Service Manual online

Check the PC Audio Cable
YES
Check MAIN B’D
C2015, C2016
MAIN B’D
C2015 (Right Sound)
C2016 (Left Sound)
signal ?
YES
NO
Replace MAIN B’D IC 100
RGB Video OK ?
YES
Check MAIN B’D JK401
Replace MAIN B’D JK401
NO
YES
Making 
Revision 
2009. 2 . 1
25/34
 LCD TV
Symptom
RGB, HDMI-PC No Audio Problem
26~42LH2000
32~47LH3000/LH4000
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Display

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