HOW TO ENTER SERVICE MODE TO SAMSUNG [CB-3366Z/SEIEX _ CB-5066Z/SEISX _ CB-5366Z/SEISX]

To enter service mode:

Press [STANDBY => P.STD => HELP => SLEEP => POWER ON]

To call an item to adjust, press CH+ or CH--ve buttons on the remote control.
To adust the data value to selected item, press Vol+ or Vol-- buttons on the remote control.
To exit from service menu, press "Status" button n the remote control