| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which can be prevented from being fraudulently acted after the diaphragm of a speaker is broken through and the speaker loses a function as an alarm means. SOLUTION: A slot machine includes speakers 42 and 43 for outputting performance sound which appeals to acoustic sense according to game contents and outputting alarm sound when the fraudulent action is performed to the slot machine. The speakers 42 and 43 are provided with the diaphragm 44, and a photosensor 50 for detecting whether or not the diaphragm 44 is broken through from the front side of the diaphragm 44 by a foreign matter such as a wire is provided on the rear side of the diaphragm 44. The photosensor 50 is attached to the front end part of a voice coil bobbin 46 inside the speakers 42 and 43 and connected to a detection part 52 through an electric wire 51. When the intensity of light detected by the photosensor 50 exceeds the prescribed intensity, the detection part 52 sends detection signals indicating that the diaphragm 44 is broken through to the host computer of a hall through the main control board of the slot machine. COPYRIGHT: (C)2009,JPO&INPIT
|
