| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a game machine improved so as not to generate an abnormal lamp performance due to noise. <P>SOLUTION: An LED board 59 is provided with three systems of drive circuits each built up of four drive ICs connected in series. In the regular processing of a performance control board 51, an initial processing ST30 of setting drive data for regulating a gradation level when lighting lamps at the lowest level and storing them in a buffer area BUF, update processings ST32-ST37 of updating the drive data only for the lamps in the system subject to the execution of a lamp performance and storing them in the buffer area BUF, a transfer processing ST39 of outputting the drive data stored in the buffer area BUF to the drive circuits for each bit and writing them in all the drive ICs, and a lighting processing ST40 of outputting a single latch signal LAT to all the drive ICs and changing all the lamps to a new lighting state are executed every time. <P>COPYRIGHT: (C)2012,JPO&INPIT |
