how to unlock chlild lock for TV without remote control?

i lost my tv remote control , and its locked by child lock ,
now i cant do anything to it

its 29' TV china brand called MIYOTA
model: MY-2994

I WONDER IF THERE IS ANYWAY TO REMOVE THE CHILDE LOCK WITHOUT THE REMOTE ( LIKE TO REMOVE KINDA OF INTERNAL BETTERY INSIDE THE MOTHERBOARD OF IT , OR SOMTHIN SIMILAR TO THAT ....)

PLEASE HELP WITH AN ANSWER

THANKS ALOT

HARBI
July 2009