LG 42PT250B Service Manual page 61

13. HDMI Audio Trouble Shooting
Check video output
Y
Re-download EDID data
Y
Follow procedure All source audio
trouble shooting
Copyright © 2011 LG Electronics Inc. All rights reserved.
Only for training and service purposes
N
Follow procedure HDMI video
trouble shooting
N
Replace IC801, IC802, IC804
Maybe Mstar S7LR audio block has
N
problems.
Replace it
LGE Internal Use Only