JP2013034642A - Game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high-security and high-reliability game machine that prevents reliably an illegal act and erroneous operation of each control board, and properly acquires the game state of each game machine.SOLUTION: This game machine includes: a main control circuit board 55 provided in a casing 2 of the game machine; an external centralized terminal board 63 provided in the casing 2 to receive a signal from the main control circuit board 55, and transmitting necessary information to a hall computer 80 of a game parlor; a sub control circuit board 56 provided in a front door 9 of the game machine to receive a signal from the main control circuit board 55; and a door relay board 62 provided in the front door 9, and transmitting various kinds of signals to the main control circuit board 55. At least the main control circuit board 55 and the external centralized terminal board 63, and the external centralized terminal board 63 and the hall computer 80 are connected by optical fiber cables.

Description

  The present invention relates to a gaming machine such as a pachislot machine or a pachinko machine.

  Conventionally, in a gaming machine such as a pachislot machine or a pachinko machine, there are a plurality of kinds of “general gaming state” as a basic gaming state and a plurality of types that are advantageous for a player based on satisfying a predetermined condition or a lottery result. A “special game state” is set, and an effect using a decorative lamp, a liquid crystal display device, a sound generator, or the like is executed according to these various game states.

  In order to realize the determination of each of these game states and the execution of effects, inside the gaming machine, a main control circuit board that mainly controls the setting of the game state and game processing operations, and a transmission from the main control circuit board A sub-control circuit board for realizing an effect by light, video or sound is mounted based on the control signal.

  For example, on the main control circuit board of the pachi-slot machine, a medal sensor that detects that a game medium has been inserted by the player, a bet switch that sets an effective line that determines the success or failure of a combination, a start switch that rotates a reel, Stop switch for stopping the rotation of the reel, other input means, a stored number display for displaying the number of credited medals, an accessory count display, a payout number display, a win display, other output means, a reel The reel motor drive circuit that displays the variation of the symbol by performing the rotation control, the medal discharge device for controlling the payout of the game medium and other peripheral devices, and the sub control circuit board are connected. The main control circuit board performs processing based on information input from each input means, and performs game progress, symbol stop display, game medium payout, control of various output means, and the like.

  In such a pachislot machine, as shown in FIG. 5, the main control circuit board 55 is provided in the case 2 of the pachislot machine, and the sub control circuit board 56 is provided on the back side of the front door 9. Signals from the bet switch 13S, the start switch 46, the medal sensor 50, and the like are output to the main control circuit board 55 via the door relay board 62 provided on the back side of the front door 9.

  Further, an external concentration terminal board 63 is installed inside the housing 2, and signals such as the number of inserted / withdrawn medals from the main control circuit board 55, the number of games, bonus winning information, etc. are input as shown in FIG. While being input through the terminal 63a, these signals are output from the output terminal 63b to the host computer 80 of the game hall.

  In such a conventional pachislot machine, the main control circuit board 55 and the external concentrated terminal board 63 installed in the housing 2, the sub control circuit board 5 and the door relay board 62 installed in the front door 9, and the game The host computer 8 or the like in the field is electrically connected by an electric cable 81 in which a large number of wires are bundled, and transmits and receives necessary signals.

  By the way, in such a gaming machine, when an illegal act such as adding an illegal signal to the electric cable 81 or causing a malfunction by electromagnetic waves is performed from the gap of the front door 9 or an illegally opened door. There is.

  For this reason, in conventional gaming machines, if an abnormality such as unauthorized opening of the front door or insertion of a foreign object is detected, an alarm is issued or the open / closed state of the front door is monitored by a hall computer. A method for preventing this problem has been proposed (Patent Document 1).

JP 2003-135814 A

  In the above-described gaming machine using an electric cable for connection between boards, the open / closed state of the front door and the presence / absence of foreign matter are monitored, and if an abnormality is detected, an illegal action is prevented by issuing an alarm or the like. Measures are taken, but if the amusement hall is at rest, if foreign object insertion cannot be detected, or if an illegal operation is also performed on the front door opening / closing signal, etc. It was difficult to prevent.

  In addition, the external concentration terminal board in the gaming machine has a function of transmitting a signal to the outside of the hall computer or the like when a main signal in the gaming machine is input, thereby monitoring and managing the gaming state of each gaming machine. Although it plays an important role in hall operation, it is not possible to cheat such as external concentrated terminal boards etc. When a fraudulent act (got act) that pretends to be performed, it becomes difficult to monitor and manage the gaming state of each gaming machine, and there is a risk of seriously hindering the operation of the hall.

  In addition, the conventional signal transmission / reception means using an electric cable is not limited to the illegal acts as described above, and static electricity is charged to the clothes of the player, and the static electricity is discharged to the gaming machine at the moment when the player touches the gaming machine. In some cases, an electromagnetic current emitted from a mobile phone carried by a player may cause an unexpected current to flow through the electric cable, leading to a malfunction of the control circuit.

  Furthermore, since the electrical cable is a heating element, if a large number of electrical cables are used, the temperature inside the gaming machine will rise, adversely affecting each control board and electrical connection parts, and in turn, generating false signals, disconnecting and connecting cables. There was also the possibility of inducing defects.

  The present invention has been made to solve the above-described problems, and can reliably prevent illegal acts and malfunctions of the control boards, and can accurately grasp the gaming state of each gaming machine. An object is to provide a gaming machine.

  In order to solve the above-described problems, a gaming machine according to the present invention includes a main control board provided in a casing of the gaming machine, and a signal input from the main control board provided in the casing. Is transmitted to the hall computer of the game hall, a sub-control board provided on the front door of the gaming machine to which signals from the main control board are input, and various signals provided on the front door are sent to the front main board. In a gaming machine comprising a door control board for transmitting to a control board, between the main control circuit board and the sub control circuit board, between the main control circuit board and the external concentrated terminal board, and the sub control circuit board Between the main control circuit board and the external central terminal board and between the external central terminal board and the hall computer. Optical phi Characterized in that connected in over the cable.

  According to the present invention, at least the main control circuit board and the external concentrated terminal board and the external concentrated terminal board and the hall computer are connected by the optical fiber cable, so that illegal acts can be reliably prevented. In addition, since it is possible to accurately grasp the gaming state in each gaming machine, it is possible to manage the hall with high security and reliability.

  In addition, since the number of electric cables in the gaming machine can be greatly reduced, it is possible to reduce the occurrence rate of failures such as substrate failure due to heat dissipation, wire breakage, and connection failure.

  Further, it is possible to reduce malfunctions of the main control board or the sub control board due to external noise such as static electricity, and to transmit information with high communication speed and high reliability.

1 is an external view of a gaming machine according to the present embodiment. The internal structure figure of the game machine which concerns on this embodiment. The arrangement block diagram of each board | substrate of the gaming machine which concerns on this embodiment. The wiring block diagram of the external concentration terminal board which concerns on this embodiment. The arrangement block diagram of each board | substrate in the conventional game machine. The wiring block diagram of the conventional external concentration terminal board.

  An embodiment of a gaming machine according to the present invention will be described below with reference to the drawings. In this embodiment, a pachislot machine will be described as an example. However, the present invention is not limited to this, and can be applied to other gaming machines such as a pachinko machine.

[Outline of pachislot machine]
FIG. 1 is an external view of a pachislot machine 1 according to the present embodiment, and FIG. 2 is an internal structure diagram in a state where a front door is opened.

  A pachi-slot machine 1 according to this embodiment includes a housing 2 that houses a reel 3, a circuit board, and the like, and a front door 9 that is attached to the housing 2 so as to be openable and closable. Three reels 3 are provided side by side inside the housing 2. Each reel 3 is configured by attaching a belt-like sheet in which a plurality of symbols (for example, 21 pieces) are continuously arranged along the rotation direction to the peripheral surface of a cylindrical frame.

  A liquid crystal display device 5 is provided in the center of the front door 9. The liquid crystal display device 5 includes a display screen including a symbol display area, and is provided so as to be positioned on the near side superimposed on the three reels 3 when viewed from the front. The symbol display area is provided corresponding to each of the three reels 3 and has a configuration capable of transmitting through the reels 3 provided behind the reels 3.

  That is, the symbol display area functions as the display window 4, and the player can visually recognize the rotation and the stop operation of the reel 3 provided behind the display window 4. In the present embodiment, the entire display screen including the symbol display area is used to display an image and execute an effect.

  When the rotation of the reel 3 provided behind the symbol 3 is stopped, the symbol display area (hereinafter referred to as the display window 4) has an upper stage and a middle stage within the frame among a plurality of types of symbols arranged on the surface of the reel 3. In addition, one symbol (three in total) is displayed in each of the lower areas. In addition, a pseudo line formed by combining any one of the three regions including the upper stage, the middle stage, and the lower stage of each display window 4 is a target line for determining whether or not to win ( It is defined as a winning determination line 8).

  In the present embodiment, a top line that combines the upper stages of the display windows 4, a center line that combines the middle stages of the display windows 4, a bottom line that combines the lower stages of the display windows 4, an upper stage of the left display window, The winning down decision line consists of a cross-down line that combines the middle stage of the middle display window and the lower stage of the right display window, a lower stage of the left display window, and a cross-up line that combines the middle stage of the middle display window and the upper stage of the right display window. 8 is provided.

  The front door 9 is provided with various devices to be operated by the player. The medal slot 15 arranged on the right side of the pedestal part is provided for receiving medals dropped from the outside by the player. The medals accepted by the medal slot 15 are inserted into one game with a predetermined number (for example, three) as an upper limit, and the amount exceeding the predetermined number can be deposited inside the pachislot machine 1. (So-called credit function).

  The bet button 13 arranged on the left side of the pedestal portion is provided to determine the number of coins to be inserted into one game from medals deposited inside the pachislot machine 1. The checkout button 14 is provided to pull out medals deposited inside the pachislot machine 1 to the outside.

  A start lever 6 disposed on the left side of the pedestal is provided to start the rotation of all the reels 3. The stop button 7 is associated with each of the three reels 3 and is provided to stop the rotation of the corresponding reel 3.

  The 7-segment indicator 12 arranged on the left side of the reel 3 is made up of 7-segment LEDs, and the number of medals inserted in the current game (hereinafter referred to as the number of medals) and the medal paid out to the player as a privilege. Information such as the number of sheets (hereinafter referred to as payout number) and the number of medals deposited in the pachislot machine 1 (hereinafter referred to as credit number) is digitally displayed to the player.

  A large number of lamps 24 (LEDs, etc.) are arranged on the side and upper side of the liquid crystal display device 5, and depending on the contents of the production, movement of the lighting state, rotation of the lighting state, strobe light emission, and other points Emits light with a light-off pattern. A pair of speakers 21 arranged on the lower left and right sides of the liquid crystal display device 5 outputs sound such as sound effects and music corresponding to the contents of the performance. The medal payout port 16 guides medals discharged by driving a medal payout device described later to the outside. The medals discharged from the medal payout opening 16 are stored in the medal tray 17.

  Below the liquid crystal display device 5 and above the pedestal portion, a payout panel 23 for displaying a symbol combination, a medal payout number, and the like is disposed. Further, below the pedestal portion, a waist panel 25 for displaying a machine name and a character design is provided. A pair of speakers 21 that enhance sound effects such as effects are also provided behind the medal tray 17 below the waist panel 25.

[Internal configuration of pachislot machine]
FIG. 2 is a diagram showing the internal configuration of the pachislot machine 1 according to the present embodiment, in which the front door 9 is opened and the structure on the back side of the front door 9 and the structure inside the housing 2 appear. Yes.

  A main control circuit board 55 is provided above the inside of the housing 2. The main control circuit board 55 is a circuit board that controls the main flow of the game in the pachislot machine 1, such as determination of an internal winning combination, rotation and stop of the reel 3, and determination of the presence or absence of winning.

  Three reels 3 are provided in the center inside the housing 2. A stepping motor is connected to each reel 3 via a gear having a predetermined reduction ratio.

  A medal payout device 43 having a structure capable of storing a large amount of medals and discharging them one by one is provided below the inside of the housing 2. On the left side of the medal payout device 43, a power supply device 54 for supplying necessary power to each device of the pachislot machine 1 is provided.

  A sub control circuit board 56 is provided at the upper part on the back side of the front door 9. The sub-control circuit board 56 is a circuit board that controls execution of effects by turning on and off the lamp 24, generating sound, displaying images, and the like. The specific configuration of the sub control circuit board 56 will be described later.

  A selector 51 is provided at the center of the back side of the front door 9 and below the display window 4. The selector 51 is a device for selecting whether or not a medal is appropriate in material, shape, and the like, and guides an appropriate medal received in the medal insertion slot 15 to the medal payout device 43. A medal sensor 50 (see FIG. 3), which will be described later, is provided on a path through which the medal passes in the selector 51, and detects that an appropriate medal has passed.

[Configuration of each board]
Next, with reference to FIG. 3, the structure of each board | substrate mounted in the housing | casing 2 and the front door 9 of the pachislot machine 1 in this Embodiment is demonstrated.

  The pachi-slot machine 1 in the present embodiment includes a main control circuit board 55, a sub control circuit board 56, a door relay board 62, an external concentration terminal board 63, and other peripheral devices.

(Main control circuit board)
The main control circuit board 55 is mainly composed of a microcomputer installed on the circuit board. The microcomputer includes a CPU (hereinafter referred to as a main CPU), a ROM (hereinafter referred to as a main ROM), a RAM (hereinafter referred to as a main RAM), an I / O, a communication circuit, and the like.

  The main ROM stores a control program executed by the main CPU, a data table such as an internal lottery table, data for transmitting various control commands (commands) to the sub-control board 56, and the like. The main RAM is provided with a storage area for storing various data such as an internal winning combination determined by execution of the control program.

  The main CPU of the main control circuit board 55 is connected to a clock pulse generation circuit, a frequency divider, a random number generator, a sampling circuit, and the like, and the main CPU executes a control program based on the generated clock pulse. To do. The random number generator generates a random number in a predetermined range (for example, 0 to 65535), and the sampling circuit extracts one value from the generated random number and performs a lottery process regarding the game.

  The main control circuit board 55 is electrically connected to a power supply device 54 that supplies electric power, and also includes a reel motor drive circuit 39 that controls rotation and stop of the reel 3, a medal payout device 43 that controls medal payout control, and a door. Each relay board such as the relay board 62 is connected by a signal cable, and is also connected to a host computer or the like of the game hall via an external concentration terminal board 63.

  Further, the main control circuit board 55 inserts medals and operates the start lever 6 with respect to the sub-control circuit board 56 that executes control of the lamp 24, the liquid crystal display device 5, or the sound generator for the purpose of production. , Various information such as operation of the stop button 7, internal winning combination, display combination, gaming state, and the like are transmitted.

  Here, the main control board 55 directly reads the state of each input means connected to the door relay board 62, and controls peripheral devices such as the reel motor drive circuit 39 and the medal payout device 43, and the stored number indicator. The game proceeds by outputting display information to an accessory count display, a payout number display, a win display, and other output means.

  As shown in FIG. 3, signal cables such as various switches arranged in the operation unit of the pachislot machine 1 are connected to the door relay board 62 connected to the main control circuit board 55. The medal sensor 50 connected to the door relay board 62 detects that the medal received in the medal slot 15 has passed through the selector 51 described above.

  The bet switch 13S connected to the door relay board 62 detects that the bet button 13 has been operated by the player. The start switch 6S detects that the start lever 6 has been operated by the player.

  The stop switch 46 detects that each of the three stop buttons 7 has been pressed by the player. Input information such as these switches is transmitted from the door relay board 62 to the main control board 55. The main control board 55 advances the game based on the input information, and controls operations of peripheral devices such as the reel motor drive circuit 39 and the medal payout device 43.

  The reel motor drive circuit 39 controls driving of a stepping motor arranged for each reel 3. Each reel 3 is connected to a reel position detection circuit. The reel position detection circuit detects a reel index indicating that the reel 3 has made one rotation by an optical sensor having a light emitting part and a light receiving part.

  The driving force of the stepping motor that rotates each reel 3 is transmitted to the reel 3 through a gear having a predetermined reduction ratio. Each time one pulse is output to the stepping motor, the reel 3 rotates at a constant angle.

  The main CPU of the main control circuit board 55 counts the number of times the pulse is output to the stepping motor after detecting the reel index, so that the rotation angle of the reel 3 (mainly, how many symbols the reel 3 has) The position of each symbol arranged on the surface of the reel 3 is managed.

  The medal payout device 43 is provided with a medal detection unit that detects the number of medals to be paid out and checks whether or not medals discharged from the medal payout device 43 have reached the payout number. be able to.

(External concentration terminal board)
An external concentrated terminal plate 63 to which various signals are input from the main control circuit board 55 is installed inside the housing 2. The external concentration terminal board receives signals such as the number of medals inserted / withdrawn from the main control circuit board 55, the number of games, bonus winning information, etc. via the optical signal input terminal 63c. The data is output from the output terminal 63d to the game hall host computer 80.

(Sub control circuit board)
The sub control circuit board 56 is connected to the main control circuit board 55 by one-way communication, and performs processing such as determination and execution of effect contents based on a command transmitted from the main control circuit board 55. The sub-control circuit board 56 basically includes a CPU (hereinafter referred to as sub-CPU), ROM (hereinafter referred to as sub-ROM), RAM (hereinafter referred to as sub-RAM), rendering processor, drawing RAM, driver, DSP (digital signal processor). , An audio RAM, an A / D converter, and an amplifier.

  The sub CPU of the sub control circuit board 56 controls the output of video, sound and light according to the control program stored in the sub ROM in accordance with the command transmitted from the main control circuit board 55. The sub-RAM is provided with a storage area for registering the determined contents and effects data, and a storage area for storing various data such as an internal winning combination transmitted from the main control board 55. The sub ROM basically includes a program storage area and a data storage area.

  The program storage area stores a control program executed by the sub CPU. For example, in the control program, a main board communication task for controlling communication with the main control board 55 and an effect registration task for extracting and registering effect contents (effect data) by extracting effect random numbers. A drawing control task for controlling the display of video by the liquid crystal display device 5 based on the determined contents of the production, a lamp control task for controlling the light output by the lamp 24, a voice control task for controlling the sound output by the speaker 21, and the like. included.

  The sub-control circuit board 56 is connected with the liquid crystal display device 5, the speaker 21 and the sound board 110, the lamp board 58, the lower dish LED board 61, and the like as peripheral devices whose operations are controlled.

  The sub CPU, the rendering processor, the drawing RAM (including the frame buffer), and the driver of the sub control circuit board 56 create a video according to the animation data specified by the contents of the presentation, and transmit the created video to the liquid crystal display device 5. To display.

  Further, the sub CPU, DSP, audio RAM, A / D converter, and amplifier of the sub control circuit board 56 output sound such as BGM from the upper speaker 21 in accordance with the sound data specified by the contents of effects. Further, the sub CPU transmits a command of audio information designated by the production contents to the sound board 110. The sound board 110 that has received the voice information command analyzes the command, generates a voice signal using a DSP, an audio RAM, an A / D converter, an amplifier, and the like, and outputs a voice from the lower speaker 21 and the rear speaker 21. Output.

  Further, the sub CPU of the sub control board 56 turns on and off the lamp 24 according to the lamp data designated by the contents of the effect.

  The lamp substrate 58 is turned on / off for a large number of lamps 24 arranged on the side of the liquid crystal display device 5 at the upper front of the pachislot machine 1 shown in FIG. The pattern can be switched. The sub-control board 56 transmits a command according to the effect contents related to turning on / off of the lamp 24 to the lamp board 58. When the lamp board 58 receives the command, the lamp board 58 individually controls lighting and extinguishing of the lamps 24 arranged in large numbers, moving the lighting state, rotating the lighting state, strobe light emission, and other points. Each lamp 24 is caused to emit light in an extinguishing pattern.

[Optical fiber cable]
As described above, the main control circuit board 55, the sub control circuit board 56, the door relay board 62, the external concentration terminal board 63, the hall computer 80, and other peripheral devices constituting the pachislot machine input and output necessary information. Therefore, they are connected with each other by a communication cable. In the conventional pachislot machine, an electric cable is used as a communication cable, but in this embodiment, an optical fiber cable 90 is used as the communication cable.

  The optical fiber cable 90 has a high degree of security and high safety against illegal electromagnetic or mechanical means from the outside. That is, with conventional electric cables, it has been difficult to prevent fraudulent acts such as electromagnetic wave or electric signal application or unauthorized replacement such as rewiring. However, optical fiber cables can prevent such fraudulent acts. Is possible.

  In the present embodiment, as shown in FIGS. 2 to 4, the optical signal output terminal 55d of the main control circuit board 55 and the optical signal input terminal 63c of the external concentration terminal plate 63 are connected by an optical fiber cable 90, and are similarly sub-controlled. Between the circuit board 56 and the main control circuit board 56, between the external concentration terminal board 63 and the hall computer 80, and between the main control circuit board 55 and the door relay board 62, optical signal input / output The optical fiber cable 90 is connected via the output terminal.

  The electrical signals electrically processed in the main control circuit board 55, the sub control circuit board 56, and the various boards are converted into optical signals (not shown) by an electric / optical signal converter in each device, and output as optical signals. It is transmitted to the optical fiber cable via the terminals (55d, 63d, etc.). In addition, an optical signal input from another device via the optical fiber cable 90 and the optical signal input terminal (63c, etc.) is converted into an electrical signal by an optical / electrical signal converter (not shown) in the device. To be processed.

  The optical fiber cable is also appropriately used for connection between other peripheral devices, for example, the medal sensor 50, the bet switch 13S, etc. and the door relay board 62, and between the main control circuit board 55 and the medal discharging device 43. Can do.

  In the present embodiment, the external concentrated terminal plate 63 converts the optical signal input to the optical signal input terminal 63c into an electrical signal, but the present invention is not limited to this, and the input optical signal is optically processed ( After amplification, branching, etc., the optical signal may be output from the optical signal output terminal 63d to the hall computer 80 as it is.

  As described above, according to the present embodiment, the main control circuit board, the sub control circuit board, the door relay board, the external centralized terminal board, and other main devices that constitute the pachislot machine, and the external centralized terminal board and the hall computer. Between the main control circuit board and the external concentrated terminal board, and between the external concentrated terminal board and the hall computer, the optical fiber is used as a transmission means. It is possible to more reliably suppress fraud than the cable, and it is possible to accurately grasp the gaming state in each gaming machine, so that hall operations with high security and reliability can be performed.

  In addition, using an optical fiber cable enables high-speed and high-reliability information transmission, and can suppress the influence of external noise due to static electricity, etc., so that the main control board or sub-control board etc. Malfunctions can be reduced.

  Furthermore, it is possible to reduce the occurrence rate of failures such as substrate failure due to heat dissipation, wire breakage or connection failure.

  As mentioned above, although embodiment of this invention was described, this embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, combinations, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 ... Pachi slot machine, 2 ... Cabinet, 3 ... Reel, 4 ... Display window, 5 ... Liquid crystal display device, 6 ... Start lever, 6S ... Start switch, 7 ... Stop button, 8 ... Winning determination line, 9 ... Front door, 12 ... 7-segment display, 13 ... Bet button, 13S ... Bet switch, 15 ... Medal slot, 16 ... Medal payout port, 17 ... Medal tray, 21 ... Speaker, 23 ... Dividend panel, 24 ... Lamp, 25 ... Waist Panel, 39 ... reel motor drive circuit, 43 ... medal payout device, 46 ... stop switch, 50 ... medal sensor, 51 ... selector, 54 ... power supply, 54b, 63b ... output terminal, 55 ... main control circuit board, 55d, 63d ... Optical signal output terminal, 56 ... Sub control circuit board, 58 ... Lamp board, 61 ... Lower plate LED board, 62 ... Door relay board, 63 ... External collection Terminal plate, 63a ... input terminal, 63c, 80c ... optical signal input terminal, 79 ... CRC checker, 80 ... Hall computer, 81 ... electric cable, 90 ... optical fiber cable, 110 ... sound board.

Claims (3)

A main control circuit board provided in a housing of the gaming machine, an external concentration terminal board which is provided in the housing and receives a signal from the main control circuit board and transmits necessary information to a hall computer of the game hall; A sub-control circuit board that is provided on the front door of the gaming machine and receives a signal from the main control circuit board; and a door relay board that is provided on the front door and transmits various signals to the front main control circuit board. In the equipped gaming machine,
Between the main control circuit board and the sub control circuit board, between the main control circuit board and the external concentrated terminal board, between the sub control circuit board and the door relay board, and the external concentrated terminal board and the hall computer. A gaming machine characterized in that at least the main control circuit board and the external concentrated terminal board and the external concentrated terminal board and the hall computer are connected by an optical fiber cable.   The said main control board, an external concentration terminal board, a sub control board, a door relay board | substrate, and a hall computer each have an electrical / optical signal converter and / or an optical / electrical signal converter. Gaming machine.   The game machine includes a medal sensor, a bet switch, and a start switch, and the medal sensor, the bet switch, the start switch, and the door relay board are connected by an optical fiber cable. The gaming machine described.

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