The tape carrage wont load the tapes but it will go into the load position without.
I have a sony cam myself. If the cam is empty, you open the outer door(swings out), and the load/unload mechanism rises up and pops open allowing tape insertion. When a cassette is placed into the mechanism, you press where it says "push" and then the drive pulls the tape down and into the unit. Then the outer door is closed and you're ready to tape. IF YOU PUSH DOWN ON THE TAPE WHILE IT'S BEING PULLED INTO THE UNIT IT WILL STRIP GEARS INSIDE. The gears are made of nylon to prevent serious damage to motors and other circuitry. This transport setup cannot be forced at all. If any type of mis-alignment occurs, the mechanism is supposed to stop and back up--allowing the problem to be corrected. If it is damaged, the cam must be repaired. There is critical timing involved in replacing the tape carriage.---Rick