The present invention provides a side-edge backlight module, which includes a backplane, a light guide plate arranged inside the backplane, and a backlight source mounted to the backplane. The device further includes a voltage control block outputting a level controlled supply voltage in response to the decoded data. The weaving mechanism includes an alignment plate to align the tubes and separation plates to separate the tubes after they have been aligned. In this way, the system is able to provide reporting and control features that the board-processing machines do not provide inherently. The presser attaching mechanism includes a locking mechanism located on a lower end of the presser bar so as to be switchable between a locking position where the presser foot or the presser holder is fixed to the presser bar and a unlocking position where the presser foot or the presser holder is released from the fixed state to the presser bar.