Read LG 42PW340-UB / 42PW350-UA / 42PW350-UE / 42PW350U-UC (CHASSIS:PU11A) Service Manual online
13. HDMI Audio Trouble Shooting
Check video output
Y
Follow procedure All source audio
trouble shooting
N
Y
Re-download EDID data
Maybe Mstar S7R audio block has
problems.
Replace it
Replace it
N
Follow procedure HDMI video
trouble shooting
N
Replace IC801, IC802, IC804
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