HOW TO ENTER SERVICE MENU TO SAMSUNG TV

Set the TV to standby mode and press these buttons on the remote control in sequence:
[DISPLAY] [P.STD] [MUTE] [POWER].
The service menu will be displayed.
Use [CH+] &[CH-] buttons to select items, and [VOL+] & [vOL-] buttons to change the data values.
Press [Power] button to exit from the servce menu.