A method of manufacturing an EL display device having a light emitting part, in which a plurality of pixels are arrayed, and a thin-film transistor array device to control light emission of the light emitting part, includes a luminance measurement step of obtaining luminance data of pixel, with the light emitting part being lit. By deliberately establishing a large skew among processor clocks, it is possible to perform application based tracing by directly using the processors. In another embodiment, the plurality of antenna weight components is determined by simplified processing. Then, the storage is updated, and the process returns to Step S26. The base station further includes a control unit configured to transmit a command to the mobile communication terminal to reduce the plurality of component carriers to one prior to handover of communication between the mobile communication terminal and the base station to another base station.