12. HDMI Audio Trouble Shooting
Check video output
Y
Check DDC Line
Ch k DDC Li
Y
Check EDID Pull-Up Voltage
p
Y
Follow procedure All source audio
trouble shooting
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Only for training and service purposes
N
Follow procedure HDMI video
trouble shooting
N
Replace one R3302, R3303, R3312,
R3313, R3320, R3321
R3313 R3320 R3321
& Recheck
N
Replace one R3330, R3374, R3315,
g
R3316, R3311, R3314
,
,
& Recheck
Maybe LGE2122 (MTK Main IC,
N
IC105) audio block has problems.
Replace it
LGE Internal Use Only