A method for adhering a film to a touch pad includes adhering a fixing bracket to a back surface of a touch pad, and aligning a plurality of screw holes of the fixing bracket with a plurality of the screw holes of a front cover of a system body, respectively, and connecting the fixing bracket and the front cover of the system body using screws or bolts that engage the screw holes. A positioning wall of a positioning frame is inserted into a gap between the touch pad and the front cover of the system body from a front surface of the touch pad. A film is aligned with an opening of the positioning frame, and the film is adhered to the front surface of the touch pad. The positioning frame is removed from the front surface of the touch pad.