I have two AG-DVC20P Pro MiniDV Camcorders that were purchased at an auction. Neither had batteries at the time of purchase, but using the AC Supply in either camera, the Cassette Carrier will not open. The outside door opens, but the Cassette Carrier will not move up, or out. It doesn't sound like the motors are engaging on either camera. Is there a Manual Eject Override that isn't listed in the manual? Thanks in advance.