Check System Info
View system information.
Check Signal Info
Press 
/
button on your remote control and select 
Settings > Support > System Info > Signal Info.
Show the signal information of current input.
Check Network Connection Status
Press / button on your remote control and select Settings > Support > System Info > Network Connection Status.
View the TV's network connection information.
Check Input Connection Status
Press / button on your remote control and select Settings > Support > System Info > Input Connection Status.
View the TV's input connection information.
Check Software Version
To check the current software version of your TV, press / button on your remote control and select Settings > Support > System Info > Version.