T.v with no remote

Question

G'Day everyone
I am in Australia and I have been given a new R.C.A t.v .When i say new i mean it has never been used because no-one has been able to fix it yet.The unit has no remote.When you manually turn it on ,it comes up with what looks like the child lock is on.How do i fix this problem????Please help,i don't really want to throw it away!It is a rca 70cm tv the only model numbers i could find was R29SFOBA.......does this mean anything? Cheers Scott