If the power is not turned on, how to take out the tape from the camera?

If it is the previous tape DV camera, the movement structure is very complicated and precise. Generally speaking, there is a small mechanism that can open the cassette without power supply. Different types of movements have different structures, and the position of this mechanism is different. It is for maintenance personnel. If you are not familiar with it, it is not recommended to open it violently, which is easy to destroy the machine.