An video data object distribution system for transfer of video data objects includes a network of digital data file servers. The leadframe further includes a second plurality of segments having a narrow center portion in the first horizontal plane, at least one wide center portion in the second horizontal plane, and narrow end portions in a third horizontal plane, which is located between the first and second planes. The retaining pins are selectively inserted into the slide grooves and each of the retaining pins has an arched side with two opposite lateral edges. Based on this amount of charge, a failure on an EL array substrate is detected before assembling an EL panel. The distance between both magnets is also widened in a right and left direction, and when the magnetic attraction drops, the key is located by gravity in a release position.