| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine characterized in a circuit board.SOLUTION: A game machine comprises: amplification means for amplifying a sound signal; sound output means for converting the amplified sound signal into a sound and outputting the sound; and first and second circuit boards. The first circuit board comprises a first output terminal for outputting one voltage among a plurality of input voltages. The second circuit board comprises first and second input terminals, the amplification means, and voltage conversion means for generating a power source voltage of the second circuit board. The voltage conversion means is electrically connected to the second input terminal. The first input terminal is electrically connected to the first output terminal. The amplification means is electrically connected to the first input terminal and amplifies the sound signal with the input voltage as a power source voltage.SELECTED DRAWING: Figure 9 |
