Picture is dark and audio sounds strange.
The screen can become dim and the soundcan go on and off while watching TV.
①Doyou have the remote control(magic/general) that was given by LG when youpurchased the TV?
②Doyou see Mute UI(magic) or Mute button(general) on the remote control? (In themiddle of remote control)
AVmight be adjusted so the screen can become dim and the sound might go on andoff.
In asimple way, you can reset AV, then it will be initialized as if it is freshfrom factory.
(Applied to LM6000 and higher_L9/MKT_S,WVer:4.04.05 and higher)
① PushMute button of magic/general remote control three consecutive times.
②If“Yes/No” window pops up, select yes by pushing OK button of remote control.
③Audio/Videowill be initialized.
(ex.Audio/Video: Standard, Power Saving Mode: Off) etc..