Panasonic NV-D80EV

I have got an old Panasonic NV-D80EV, videorecorder i vould like to use to get my videotapes on dvd, but it seems that i is locked with an electronic lok, and i dont have this code, can anyone tel me how to reeset this lock, there is no responce when i get power on, in the manual is standing that when the lock is of it starts automatic.
Pleas advice me ???