For service mode you can use any RC-5 control :
PHILIPS RC5901 , COM 3012 or universal remote.
entry to the service mode: press the key CONTRAST -
and you will see the servicemenu.
To enter service mode
Beko remote:. Switch tv on
Philips remote : Service menu
CONTRAST -
Beko remote:. change function/ value
up, down, left right.
Philips remote : Store/exit
CONTRAST -