JP4662844B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine such as a slot machine, and in particular, in a gaming machine including a plurality of boards and a wire harness that electrically connects them, fraudulent acts that are performed by adding unauthorized electronic components are suppressed. It relates to a possible gaming machine.

  Pachinko machines such as pachinko machines and slot machines that are installed and used in game halls such as pachinko parlors are given a certain value to game media such as pachinko balls and medals, and the game media acquired by playing games It can be exchanged for various prizes. The gaming machine is provided with various drive devices such as a lamp device and a sound generation device that are operated based on the supply of the game medium, and a control circuit device corresponding to control these drive devices inside the housing. Therefore, when the player plays a game, the game is filled with interest by appropriately operating them. Further, in recent years, a variable symbol display device such as a reel display device or a liquid crystal image display device that can display predetermined identification information (symbol) in a variable manner is built in and stopped after changing the identification information when a predetermined condition is satisfied. The mainstream is to operate the variable symbol display device so that it can be displayed. These devices are controlled by a control circuit device.

  A control circuit device disposed in a recent gaming machine is generally one in which a CPU (central processing unit) provided on a board performs electronic control according to a control program. The control program is stored as data in an IC chip mounted on a substrate such as a mask ROM (read only memory), and the CPU sequentially reads and executes the control program data from the IC chip according to the gaming state. Control is done by doing.

  Fraudulent acts against gaming machines have become a major problem. There are various types of fraud. One of them is a wire harness that opens a door of a gaming machine and connects a board and multiple boards (a wire harness. A bundle of electric wires and cables. There is a method of attaching an illegal electronic component to a “harness”. An unauthorized electronic component performs an unauthorized process that makes a game advantageous to a person who performs an unauthorized act. For example, an unauthorized electronic component may be provided between a switch board on which a start switch is provided and a main board on which a lottery process is performed. The unauthorized electronic component generates a start switch pressing signal electronically at a predetermined timing so as to increase the winning probability of the lottery process, and sends it to the main board. In addition, the ROM on the main board is illegally replaced with a rewritten content that increases the winning probability.

  As a fraudulent act, in addition to exchanging the ROM, replacing the main board itself, installing illegal electronic parts on the harness, or exchanging connectors and harnesses loaded with illegal electronic parts in advance with regular ones, etc. There is something. These misconducts can be broadly classified into those that involve harness replacement, that is, connector insertion / extraction, and those that do not. Examples of the former include replacement of the main board, replacement of connectors and harnesses, and examples of the latter include replacement of ROM. In the following description, fraudulent acts involving the replacement of the former harness (connector insertion / extraction) will be described.

  Even if the harness is replaced with an unauthorized one, the game can be performed thereafter, and an unauthorized electronic component cannot be found from outside the gaming machine. In a conventional gaming machine, even if a medium for connecting a signal line such as a harness is temporarily removed during a game or in a game standby, an electronic component or the like on a board to which the signal line is connected does not operate. However, other substrates and electronic components were not affected. For these reasons, it has been difficult to prevent the above fraud.

  There exists a thing of the following patent documents 1 as a technique for preventing the said fraud.

Japanese Patent Application Laid-Open No. 2005-58637 "Improper Wiring Detection Device and Method for Game Machine and Program"

  The technology of Patent Document 1 compares signals at both ends of a harness with a detection circuit, and determines that an unauthorized electronic component is attached when the signals do not match. However, the method of Patent Document 1 cannot simultaneously monitor all of a plurality of substrates, particularly a plurality of layers connected in a hierarchical manner.

  The present invention can simultaneously monitor all of a plurality of boards connected in a layered manner, and an unauthorized operation (for example, replacement of a harness or an unauthorized connector) can be performed in any of the plurality of boards and a harness connecting them. It is an object to provide a gaming machine in which unauthorized parts cannot be easily attached by notifying an error state in such a way that a human being can detect sound, light, etc. .

Gaming machine according to the present invention includes a central substrate for performing lottery process or effect process according to the game, and one or more intermediate peripheral board is connected to said center substrate, one or more are connected to the intermediate peripheral board of the end near the substrate, a first wire harness which connects the center substrate and the respective intermediate peripheral board electrically, a second wire harness for electrically connecting each said end peripheral substrate and the intermediate peripheral board, the Prepared,
The first wire harness and the second wire harness are a confirmation signal transmission line for transmitting a confirmation signal transmitted from the central board to the intermediate peripheral board and the terminal peripheral board, and a confirmation returned from the terminal peripheral board. Including a confirmation signal reply line for transmitting a reply of the signal to the central board,
The intermediate peripheral board includes a center connector socket that fits with a connector plug provided in the first wire harness, a peripheral connector socket that fits with a connector plug provided in the second wire harness, and the center Between the side connector socket and the peripheral connector socket, the wiring for connecting the confirmation signal transmission line included in the first wire harness and the confirmation signal transmission line included in the second wire harness, and the first wire harness A wire connecting the confirmation signal return line included in the second wire harness and the confirmation signal return line included in the second wire harness,
The termination peripheral board includes a connector socket that fits with a connector plug provided in the second wire harness, and a wiring that connects the confirmation signal transmission line and the confirmation signal return line included in the second wire harness. Prepared,
The center board transmits the confirmation signal to the termination peripheral board through the confirmation signal transmission line, and a harness connection confirmation unit that confirms a reply of the confirmation signal from the termination peripheral board through the confirmation signal return line, The harness connection confirmation unit includes an error notification unit that performs error notification when the reply of the confirmation signal cannot be confirmed.

For example, the harness connection confirmation unit includes a comparator that compares the input voltage with a predetermined voltage.
In the harness connection confirmation unit, a power source is connected to the confirmation signal transmission line via a resistor, and the confirmation signal return line is grounded.
The confirmation signal transmission line is connected to the input of the comparator,
The error notification unit performs error notification based on the output of the comparator.

For example, the harness connection confirmation unit includes a comparator that compares the input voltage with a predetermined voltage.
In the harness connection confirmation unit, a power line is connected to the confirmation signal transmission line, and the confirmation signal return line is grounded through a resistor,
The confirmation signal return line is connected to the input of the comparator,
The error notification unit performs error notification based on the output of the comparator.

For example, the harness connection confirmation unit includes a comparator including at least two input terminals,
In the harness connection confirmation unit, a power line is connected to the confirmation signal transmission line, and the confirmation signal return line is grounded through a resistor,
Two input terminals of the comparator are connected to both ends of the resistor,
The error notification unit performs error notification based on the output of the comparator.

For example, the harness connection confirmation unit includes a transmitter that outputs a predetermined signal to the confirmation signal transmission line, and a reply signal of the confirmation signal returned by the confirmation signal return line as an output signal of the transmitter. A comparator for comparison,
The error notification unit performs error notification based on the output of the comparator.

  According to the present invention, the harness connection confirmation unit for confirming the response of the confirmation signal from the termination peripheral substrate to the central substrate for transmitting the confirmation signal toward the termination peripheral substrate, and confirming the response of the confirmation signal by the harness connection confirmation unit And an error notification unit that performs error notification when it cannot be performed, so that a plurality of harnesses between a plurality of boards connected in a layered manner are simultaneously monitored, and the plurality of harnesses can be While detecting that either one has been removed, it is possible to notify this by sound or light. As a result, it is possible to suppress the attachment of unauthorized electronic components that may affect the game result.

Embodiment 1 of the Invention
A gaming machine according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a front view of the slot machine with the door closed.

  In FIG. 1, reference numeral 100 denotes a slot machine. As shown in FIG. 1, the slot machine 100 is attached to a slot machine main body 120 and a front side of the slot machine main body 120 so as to be opened and closed by a hinge or the like. And a door 130. As shown in FIG. 1, a game display unit 131 is provided in the center of the front surface of the door 130, and a medal insertion slot 132 for a player to insert medals is provided in the lower right corner of the game display unit 131. Further, a reject button 133 for forcibly discharging a clogged medal inserted from the medal insertion slot 132 to the outside of the slot machine 100 is provided below the medal insertion slot 132.

  A start switch 134 for starting a game is provided at the lower left of the game display unit 131, and three stop buttons 140 are provided corresponding to the three reels. At the center of the lower end of the door, a medal payout opening 135 is provided.

  FIG. 2 is a block diagram showing an electrical schematic structure of the slot machine 100. In this figure, the display about the power supply system is omitted. The slot machine 100 includes a main substrate 1 and a sub substrate 2 that operates in response to a command from the main substrate 1 as main processing devices. At least the main substrate 1 is accommodated inside the case so that it cannot be contacted from the outside, and a sealing process is performed so that traces remain when the substrates are removed.

  The main board 1 is for performing an internal lottery in response to a player's operation, and processing such as reel rotation / stop and medal payout. The main board 1 includes a CPU that performs a control operation according to a preset program, a ROM that is a storage unit that stores the program, and a RAM that temporarily stores processing results and the like.

  The sub-board 2 is for receiving a command signal from the main board 1 and notifying the result of the internal lottery and performing various effects. The sub-board 2 includes a CPU that performs a control operation according to a preset program corresponding to the command signal, a ROM that is a storage unit that stores the program, and a RAM that temporarily stores processing results and the like. The flow of commands is only one from the main board 1 to the sub board 2, and conversely, no command or the like is issued from the sub board 2 to the main board 1.

  The main board 1 counts the start switch 134, the stop button 140, the reel unit (including the reel driving device) 70, the reel position detection circuit 71, the hopper driving unit 80, the hopper 81, and the number of medals paid out from the hopper 81. For this purpose, a medal detection unit 82 is connected. A peripheral substrate (local substrate) such as a control substrate 200, a speaker substrate 201, and an LED substrate 202 of the liquid crystal display device is connected to the sub substrate 2.

  As described above, the main board 1 and the sub board 2 are configured around the CPU, and include a ROM, a RAM, an I / O, and the like. A CPU (processing unit) receives a player's operation and reads a program stored in a ROM (storage unit) to perform a predetermined operation. Specifically, the rotation and stop of the three rotating reels built in the reel unit 70 are controlled based on the operation of the start switch 134 and the stop button 140, and the display of lamps, speakers, and the like are controlled. Temporary data necessary for the CPU to operate is RAM (generally RAM is a volatile memory, and data is lost in principle when the power is turned off. A backup power supply may be prepared, and in this case, data is not lost even if the power is turned off. The CPU performs a predetermined operation in accordance with a program recorded in the ROM, records temporary data necessary for processing in the RAM, and reads out and refers to the recorded data as necessary.

  In FIG. 2, between the main board 1 and the sub board 2, between the main board 1 and the switch board on which the start switch 134 and the stop button 140 are mounted, between the reel unit 70 and the hopper driving unit 80, and the sub board 2 and the liquid crystal. The control board 200, the speaker board 201, and the LED board 202 are connected by a wire harness WH. The wire harness WH is a bundle of electric wires and cables, and is usually provided with connectors (plugs) at both ends thereof. The connectors (plugs) are fitted and electrically connected to connectors (sockets) provided on the boards, thereby completing the electrical connection between the boards. The dotted ellipse in FIG. 2 indicates that the electric wires surrounded by the dotted line are combined into one wire harness WH. Electric wires having the same connection location and route are usually combined into one wire harness WH. In many cases, the wire harness WH includes a plurality of electric wires (usually several to several tens of electric wires). The same applies to the wire harness WH indicated by a single line in FIG.

  A player who wants to enjoy a game with a slot machine can first borrow a medal as a game medium from a medal lending machine (not shown) or the like, and insert a medal directly into the medal slot 132 of the medal slot device. The start switch 134 is a lever positioned obliquely below the rotating reel, and starts driving the reel unit 70 on condition that a game medal is inserted. The drive of the reel unit 70 is stopped by a stop button 140. The reel unit 70 is composed of three rotating reels. Each rotating reel includes a rotating drum made of a synthetic resin and a tape-like reel tape attached around the rotating drum. A plurality of (for example, 21) symbols are displayed on the outer peripheral surface of the reel tape.

An operation according to an embodiment of the invention will be described with reference to the drawings.
FIG. 3 is an explanatory diagram of the operation principle of the embodiment of the invention. In FIG. 3, a plurality of peripheral substrates are connected in a hierarchy with respect to the central substrate PBC (the central substrate and the peripheral substrates will be described later). The peripheral substrate at the end is referred to as a peripheral substrate (termination) or a terminal peripheral substrate PBE, and the peripheral substrate between the terminal peripheral substrate PBE and the central substrate PBC is referred to as a peripheral substrate (intermediate) or an intermediate peripheral substrate PBM.

  The central board PBC transmits a confirmation signal to the termination peripheral board PBE, and confirms a response of the confirmation signal from the termination peripheral board PBE with a harness connection confirmation unit DET, and a harness connection confirmation unit DET returns a confirmation signal. And an error notification unit ERR that performs error notification when it cannot be confirmed (details of the harness connection confirmation unit DET will be described later). That is, a confirmation signal is output from the harness connection confirmation unit DET of the central board PBC to the intermediate peripheral board PBM (reference A), and the intermediate peripheral board PBM relays the confirmation signal and outputs it to the terminal peripheral board PBE (reference B). The termination peripheral substrate PBE returns a confirmation signal to the intermediate peripheral substrate PBM (reference C), and the intermediate peripheral substrate PBM returns a confirmation signal to the central substrate PBC (reference D). This operation is the same when the hierarchy is deeper, for example, in the case of the third hierarchy on the right side of FIG. The procedure of transmitting a confirmation signal and returning it to other peripheral boards is executed, but the description thereof is omitted.

  The harness connection confirmation unit DET confirms for each layer system composed of a plurality of peripheral boards (in the example of FIG. 3, two systems of the left two-layer system and the right three-layer system are shown). When we always monitor whether there is a response to signal transmission, and when it is judged that there is no confirmation signal response in any of the peripheral boards, that is, any harness or connector has been removed In addition, the error notification unit ERR performs error notification. As a result, it is possible to immediately detect an improper act involving replacement of the harness, that is, insertion / removal of the connector, and notify the fact by sound or light. As a result, it is possible to suppress the attachment of unauthorized electronic components that may affect the game result.

  In the embodiment of the present invention, a substrate (preferably equipped with a CPU) capable of at least confirming harness connection and notifying an error (or transmitting a control signal for performing an error notification) is a central substrate PBC, and the others This substrate is a peripheral substrate PBM or PBE. The peripheral boards PBM and PBE only need to be hierarchically connected, and which board of the gaming machine is the central board PBC and which board is the peripheral board PBM or PBE is arbitrary. For example, as shown in FIG. 4A, the central substrate PBC can be the sub-substrate 2, the intermediate peripheral substrate PBM can be the main substrate 1, and the terminal peripheral substrate PBE can be the switch substrate. Alternatively, as shown in FIG. 4B, the central substrate PBC can be the main substrate 1, the intermediate peripheral substrate PBM can be the sub-substrate 2, and the terminal peripheral substrate PBE can be the liquid crystal substrate 200. When the internal structure of the gaming machine is different from that shown in FIG. 2, for example, the reel unit 70 is connected to the main board 1 as an intermediate peripheral board PBM, and the switch board is connected to the reel unit 70 as a terminal peripheral board PBE. If so, the embodiment of the present invention can be applied to this system. The operation does not differ depending on which board of the gaming machine is the central board PBC and which board is the peripheral board PBM or PBE. The correspondence relationships in FIGS. 4A and 4B are merely examples.

  The operation of the embodiment of the present invention will be described with reference to FIGS. These figures show the detailed connections for one system. 5 to 8 show the case where the hierarchy is 2, but even if there are more hierarchies than this, the basic operation is merely increased by the peripheral board PBM entering in the middle and the relay operation (wiring for relay) there. Will not change.

  In FIG. 5, the power supply voltage is transmitted as a confirmation signal, and the current from the power supply voltage is received as a reply of the confirmation signal.

  In FIG. 5, PBC is a central board that performs a lottery process or effect process related to a game, PBM is an intermediate peripheral board connected to the central board PBC, and PBE is a terminal peripheral board connected to the intermediate peripheral board PBM. WH1 is a first wire harness that electrically connects the central substrate PBC and the intermediate peripheral substrate PBM, and WH2 is a second wire harness that electrically connects the intermediate peripheral substrate PBM and the terminal peripheral substrate PBE.

  The first wire harness WH1 and the second wire harness WH2 return a confirmation signal transmission line T for transmitting a confirmation signal transmitted from the central board PBC to the intermediate peripheral board PBM and the terminal peripheral board PBE, and the terminal peripheral board PBE. And a confirmation signal return line R for transmitting the confirmation signal to be transmitted to the central substrate PBC.

The harness connection confirmation unit DET includes a comparator CMP that compares the input voltage with a predetermined voltage. The reference voltage source VS is for that purpose. In the center substrate PBC, the power supply line VCC is connected to the confirmation signal transmission line T via the resistor RR. On the other hand, the confirmation signal return line R is grounded at the harness connection confirmation unit DET. The confirmation signal transmission line T is connected to one input of the comparator CMP, and the reference voltage source VS is connected to the other input.
The error notification unit ERR performs error notification based on the output of the comparator CMP.

  The intermediate peripheral board PBM includes a central connector socket PBMS1 that fits with a connector plug WH1MP provided on the first wire harness WH1, and a peripheral connector socket PBMS2 that fits with a connector plug WH2MP provided on the second wire harness WH2. With. Further, the intermediate peripheral board PBM includes the wiring W1 for connecting the confirmation signal transmission line T included in the first wire harness WH1 and the confirmation signal transmission line T included in the second wire harness WH2, and the first wire harness WH1. Between the center connector socket WH1MP and the peripheral connector socket WH2MP, the confirmation signal return line R to be connected to the confirmation signal return line R included in the second wire harness WH2. 5 to 8, the display of connectors (plugs and sockets) related to the connection between the central board PBC and the first wire harness WH1 is omitted.

  The terminal peripheral board PBE includes a connector socket PBES that fits with a connector plug WH2EP provided in the second wire harness WH2. Further, the termination peripheral substrate PBE is provided with a wiring W3 for connecting the confirmation signal transmission line T and the confirmation signal return line R included in the second wire harness WH2.

  The harness connection confirmation unit DET detects the reply of the confirmation signal by comparing with the reference voltage by the built-in comparator CMP. If the connection between the boards PBC to PBE and the harnesses WH1 and WH2 is normal, a current from the power supply voltage flows as a confirmation signal and a reply to the confirmation signal, and the input voltage of the comparator CMP becomes zero (low level), which is lower than the reference voltage. Become. When either of the connectors of the wire harness WH1 or WH2 is removed, the current stops and the input voltage of the comparator CMP becomes the power supply voltage (high level), which is higher than the reference voltage (the reference voltage is about half of the power supply voltage). To keep). At this time, the comparator CMP outputs an error signal, and in response to this, the error notification unit ERR performs error notification.

  FIG. 6 shows a case where a power supply voltage is transmitted as a confirmation signal and a current from the power supply voltage is received as a reply to the confirmation signal. However, the arrangement of the resistors RR is different from that in FIG. The connection point of is different.

  In FIG. 6, the power supply VCC is connected to the confirmation signal transmission line T in the central substrate PBC, and the confirmation signal return line R is grounded via a resistor RR. A confirmation signal return line R is connected to the input of the comparator CMP.

  The operation of the harness connection confirmation unit DET is the same as that in FIG. 5, but the output logic is reversed. That is, the response of the confirmation signal is detected by comparing with the reference voltage by the comparator CMP, but if the connection between the substrates PBC to PBE and the harnesses WH1 and WH2 is normal, the current from the power supply voltage VCC flows as the response of the confirmation signal. The input voltage of the comparator CMP becomes the power supply voltage (high level), which is higher than the reference voltage. When either of the connectors of the wire harness WH1 or WH2 is removed, the current stops and the input voltage of the comparator CMP becomes zero (low level), which is lower than the reference voltage (the reference voltage should be about half of the power supply voltage). Leave). At this time, the comparator CMP outputs an error signal, and in response to this, the error notification unit ERR performs error notification.

  In FIG. 7, a power supply voltage is transmitted as a confirmation signal, and a current from the power supply voltage is received as a reply to the confirmation signal. Unlike the cases of FIGS. 5 and 6, the current itself is detected by the comparator CMP. .

  In FIG. 7, the power supply VCC is connected to the confirmation signal transmission line T in the central substrate PBC, and the confirmation signal return line R is grounded via the resistor RR. Two input terminals of the comparator CMP are connected to both ends of the resistor RR.

  The comparator CMP of the harness connection confirmation unit DET detects the current itself that is a reply of the confirmation signal. If the connection between the boards PBC to PBE and the harnesses WH1 and WH2 is normal, a current from the power supply voltage VCC flows as a response to the confirmation signal. Therefore, a potential difference occurs between both ends of the resistor RR. Level signal). This signal means that a confirmation signal is returned. When one of the connectors of the wire harness WH1 or WH2 is removed, the current stops, the potential difference between both ends of the resistor RR becomes low level (zero), and the comparator CMP does not output a signal (for example, becomes low level). This means that the confirmation signal is not returned. In response to this, the error notification unit ERR performs error notification.

  The specific examples of FIGS. 5 to 7 are analog circuits and use voltage / current as a confirmation signal / confirmation signal reply, but the present invention is not limited to this. For example, a digital signal can be used as a confirmation signal / reply of the confirmation signal.

  FIG. 8 shows a transmitter OSC that outputs a predetermined digital signal to the harness connection confirmation unit DET, and a comparator that compares the return signal of the confirmation signal returned by the confirmation signal return line R with the output signal of the transmitter OSC. CMP. Buffers BUFF1 to BUFF3 for amplifying a confirmation signal / reply of the confirmation signal may be provided in the peripheral substrates PBM and PBE. The comparator CMP of FIG. 8 is different from those shown in FIGS. 5 to 7 and compares digital signals, and is typically an exclusive OR (XOR) gate.

  If the connection between the boards PBC to PBE and the harnesses WH1 and WH2 is normal, the same confirmation signal sent by the transmitter OSC is returned as a reply to the confirmation signal. In this case, since the comparison result in the comparator CMP is coincident, the comparator CMP does not output an error signal. However, when one of the connectors of the wire harness WH1 or WH2 is removed, the confirmation signal is not returned, the two signals compared by the comparator CMP do not match, and the comparator CMP outputs an error signal. In response to this, the error notification unit ERR performs error notification.

  According to the embodiment of the present invention, for example, a main board that controls all boards or the like is used as a central board, and a confirmation signal is always output therefrom. When the confirmation signal is received at the terminal board among the peripheral boards connected to the center board, a reply to the confirmation signal is returned to the center board. When the reply is received at the central board, it is determined that the harness is properly connected, but when the reply is not confirmed, it is possible for humans such as sound and light to detect that the harness has been removed. An error condition is notified by the method. If a harness is removed in order to attach an unauthorized electronic component, an error notification is issued at that moment. According to the embodiment of the present invention, it is possible to suppress attachment of an unauthorized electronic component or the like that may affect a game result during a game or a game standby.

  In the above description, a slot machine is taken as an example of a gaming machine, but the present invention can also be applied to other gaming machines, for example, pachinko machines.

  The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

It is a front view of a gaming machine (slot machine). It is a functional block diagram of a gaming machine. It is explanatory drawing of the principle of operation of embodiment of invention. It is a figure for demonstrating the correspondence (specific example) with the center board | substrate, intermediate | middle peripheral board | substrate, termination | terminus peripheral board | substrate, and the board | substrate of an actual game machine in embodiment of invention. It is a figure which shows the specific example of a connection with the harness connection confirmation part which concerns on embodiment of invention, a confirmation signal transmission line, and a confirmation signal reply line. It is a figure which shows the other specific example of a connection with the harness connection confirmation part which concerns on embodiment of invention, a confirmation signal transmission line, and a confirmation signal reply line. It is a figure which shows the other specific example of a connection with the harness connection confirmation part which concerns on embodiment of invention, a confirmation signal transmission line, and a confirmation signal reply line. It is a figure which shows the other specific example of a connection with the harness connection confirmation part which concerns on embodiment of invention, a confirmation signal transmission line, and a confirmation signal reply line.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main board | substrate 2 Sub board | substrate 70 Reel unit 71 Reel position detection circuit 80 Hopper drive part 81 Hopper 82 Medal detection part 100 Slot machine 120 Slot machine main body 130 Door 131 Game display part 132 Medal insertion port 133 Reject button 134 Start switch 135 Delivery port 140 Stop button 200 Liquid crystal control board 201 Speaker 202 LED board CMP Comparator DET Harness connection confirmation part ERR Error notification part PBC Central board PBM Intermediate peripheral board PBMS1 Center side connector (socket) on the first wire harness side of the intermediate peripheral board
PBMS2 Termination side connector (socket) on the second wire harness side of the intermediate peripheral board
PBE terminal peripheral board PBES terminal peripheral board connector (socket)
T confirmation signal transmission line R confirmation signal return line RR resistance W1 wiring connecting two confirmation signal transmission lines in the intermediate peripheral board W2 wiring connecting two confirmation signal return lines in the intermediate peripheral board W3 confirmation signal transmission line in the terminal peripheral board Wiring WH1 connecting the confirmation signal return line First wire harness WH1MP Connector (plug) of the first wire harness
WH2 Second wire harness WH2MP Intermediate peripheral board side connector (plug) of second wire harness
WH2EP Connector (plug) on the end peripheral board side of the second wire harness
VCC power supply voltage

Claims (5)

A center board for performing lottery process or effect process according to the game, and one or more intermediate peripheral board is connected to the central board, and the one is connected to an intermediate peripheral board or the termination peripheral board, the central comprising: a first wire harness that electrically connects each of the substrate and the intermediate peripheral substrate, and the second wire harness for electrically connecting each said end peripheral substrate and the intermediate peripheral substrate, and
The first wire harness and the second wire harness are a confirmation signal transmission line for transmitting a confirmation signal transmitted from the central board to the intermediate peripheral board and the terminal peripheral board, and a confirmation returned from the terminal peripheral board. Including a confirmation signal reply line for transmitting a reply of the signal to the central board,
The intermediate peripheral board includes a center connector socket that fits with a connector plug provided in the first wire harness, a peripheral connector socket that fits with a connector plug provided in the second wire harness, and the center Between the side connector socket and the peripheral connector socket, the wiring for connecting the confirmation signal transmission line included in the first wire harness and the confirmation signal transmission line included in the second wire harness, and the first wire harness A wire connecting the confirmation signal return line included in the second wire harness and the confirmation signal return line included in the second wire harness,
The termination peripheral board includes a connector socket that fits with a connector plug provided in the second wire harness, and a wiring that connects the confirmation signal transmission line and the confirmation signal return line included in the second wire harness. Prepared,
The center board transmits the confirmation signal to the termination peripheral board through the confirmation signal transmission line, and a harness connection confirmation unit that confirms a reply of the confirmation signal from the termination peripheral board through the confirmation signal return line, A gaming machine comprising: an error notification unit that performs error notification when the harness connection confirmation unit cannot confirm the reply of the confirmation signal. The harness connection confirmation unit includes a comparator that compares the input voltage with a predetermined voltage,
In the harness connection confirmation unit, a power source is connected to the confirmation signal transmission line via a resistor, and the confirmation signal return line is grounded.
The confirmation signal transmission line is connected to the input of the comparator,
The gaming machine according to claim 1, wherein the error notification unit performs error notification based on an output of the comparator. The harness connection confirmation unit includes a comparator that compares the input voltage with a predetermined voltage,
In the harness connection confirmation unit, a power line is connected to the confirmation signal transmission line, and the confirmation signal return line is grounded through a resistor,
The confirmation signal return line is connected to the input of the comparator,
The gaming machine according to claim 1, wherein the error notification unit performs error notification based on an output of the comparator. The harness connection confirmation unit includes a comparator including at least two input terminals,
In the harness connection confirmation unit, a power line is connected to the confirmation signal transmission line, and the confirmation signal return line is grounded through a resistor,
Two input terminals of the comparator are connected to both ends of the resistor,
The gaming machine according to claim 1, wherein the error notification unit performs error notification based on an output of the comparator. The harness connection confirmation unit compares a transmitter that outputs a predetermined signal to the confirmation signal transmission line and a reply signal of the confirmation signal that is returned by the confirmation signal return line with an output signal of the transmitter. With a comparator,
The gaming machine according to claim 1, wherein the error notification unit performs error notification based on an output of the comparator.

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