help with cct or manual please

[jimbofz]

MHDV4201-ZC01-01 (B) can anyone help with manual for this main board , tevion tv lcd 42031d
i need to move through the factory menu to next page,
 source 2580 gets me in to factory settings ,
but there must be a way to enter the next page of this menu,
this main board is used in mystery mtv lcd tvs sold in russia plus medion and tevion and others,
so far i have sourced psu cct but cant find s manual . would appreciate some help thanks