JP4612888B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine such as a slot machine, and more particularly to a technique for preventing unauthorized replacement of a main board.

  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.

  The gaming machine installed in the game hall is managed so that the control program is not tampered with. The control circuit device (main board) is stored in a storage case, and the storage case is assembled to a predetermined member of the main body frame. Thus, consideration is given so that the ROM that stores the main board and the control program is not illegally replaced. Furthermore, a seal seal is stuck on the ROM so that it cannot be easily removed from the mounted substrate.

  However, even if the main board is housed in the case as described above or a seal seal is affixed to the ROM, unauthorized replacement of the main board and the ROM will never fail.

Japanese Patent Application No. 2004-358076 This publication is intended to surely prevent unauthorized modification of a control program, and is provided with detection means (switch) for detecting the opening of a cover that houses a main board, and the cover is opened. It is disclosed that when it is detected, the fact is notified.

  In Patent Document 1, in order to detect and notify the opening of the cover, a monitoring power source is provided separately from the power source of the gaming machine main body. Replacement of the main board and ROM is performed after turning off the power of the gaming machine, but in order to notify the opening of the cover by sound or light at that time, another power supply for supplying power for that is required It is. As a result, the cost increases, which may hinder the spread of gaming machines equipped with a fraud prevention function.

  The present invention has been made in order to solve the above-described problems, and an object thereof is to provide a gaming machine that can detect and notify an unauthorized replacement of a main board or ROM without adding a dedicated power supply device.

The present invention relates to a gaming machine including a main board that performs a lottery process relating to a game, a case that houses the main board, and a sub board that receives a command signal from the main board and performs an effect process.
The main board is equipped with a detachable semiconductor element and a connector for attaching a wire harness that transmits an electrical signal to the sub-board,
It is turned off when at least one of the main board, the case storing the main board, the semiconductor element mounted on the main board, and the wire harness attached to the connector is removed. A provided switch;
A backup power supply for supplying power when the power is turned off;
A power supply voltage drop detection semiconductor element receiving power from the backup power supply;
A determination unit for determining whether or not to remove at least one of the main board, the case storing the main board, the semiconductor element mounted on the main board, and the wire harness attached to the connector; With
At least a part of a power supply line from the backup power supply to the power supply voltage drop detection semiconductor element is arranged to pass through the switch,
The power supply voltage drop detection semiconductor element sets a flag indicating that when the power supply voltage drops or outputs a signal,
The determination unit is attached to the main board, the case storing the main board, the semiconductor element mounted on the main board, and the connector based on the flag or signal of the power supply voltage drop detection semiconductor element when power is turned on. It is determined whether or not at least one of the wire harnesses is removed.

  The switch includes, for example, an action part and a contact point that is turned on and off by the action part, and is arranged as follows.

(1) The case includes a front cover and a rear cover, and the switch is provided between them. The operating portion of the switch is arranged to move back and forth by a protrusion formed on the front cover or the rear cover. In a state where the front cover is attached to the rear cover, the action portion of the switch is pushed in by the protrusion, and the contact of the switch is on. When the front cover is removed, the action part protrudes from the switch, and the contact of the switch is turned off.

(2) The switch is provided outside the case. In a state where the front cover is attached to the rear cover, the action portion of the switch is disposed so as to contact the side surface of the front cover. In a state where the front cover is attached to the rear cover, the action portion of the switch is pushed by the side surface of the front cover, and the contact of the switch is on. When the front cover is removed, the action part protrudes from the switch, and the contact of the switch is turned off.

(3) The switch is provided on the inner surface of the rear cover. In a state where the main board is attached to the rear cover, the action portion of the switch is pushed in on the back surface of the main board, and the contact of the switch is on. When the main board is removed from the rear cover, the action part protrudes from the switch, and the contact of the switch is turned off.

(4) The switch is provided on the inner surface of the gaming machine housing. The action portion of the switch is in contact with the back surface of the main board through an opening provided in a rear cover. In this state, the contact of the switch is on. When the main board is removed from the rear cover, the action part protrudes from the switch, and the contact of the switch is turned off.

(5) When there is no rear cover, the switch is provided on the inner surface of the gaming machine housing. The action portion of the switch is in contact with the back surface of the main board. In this state, the contact of the switch is on. When the main board is removed from the inner surface of the gaming machine housing, the action part protrudes from the switch, and the contact of the switch is turned off.

(6) The switch is provided on the inner surface of the gaming machine housing. The action portion of the switch is in contact with a back surface of a semiconductor element that can be detached through an opening provided in the main substrate. In this state, the contact of the switch is on. When the semiconductor element is removed from the main board, the action part protrudes from the switch, and the contact of the switch is turned off.

(7) A case where a connector cover for covering the connector is provided. The switch is provided on the inner surface of the gaming machine housing. The action portion of the switch is in contact with an end of the connector cover through an opening provided in the main board. In this state, the contact of the switch is on. When the connector cover is removed, the action part protrudes from the switch, and the contact of the switch is turned off.

(8) A case where a connector cover for covering the connector is provided. The switch is provided on the inner surface of the gaming machine housing. With the connector cover attached, the action portion of the switch is disposed so as to contact the side surface of the connector cover. In this state, the action part of the switch is pushed by the side surface of the connector cover, and the contact of the switch is on. When the connector cover is removed, the action part protrudes from the switch, and the contact of the switch is turned off.

(9) The switch is provided on the inner surface of the gaming machine casing. With the harness connector (a plug fitted into the connector of the main board) attached, the action portion of the switch is disposed so as to contact the side surface of the harness connector. In this state, the action part of the switch is pushed by the side surface of the connector of the harness, and the contact of the switch is on. When the harness connector is removed, the action portion protrudes from the switch, and the contact of the switch is turned off.

(10) The switch is provided on the inner surface of the gaming machine casing. When removing the connector of the harness (the plug fitted into the connector of the main board), the action portion of the switch is arranged so as to contact the connector of the harness. In a state where the connector of the harness is attached, the action portion protrudes from the switch, and the contact of the switch is on. Unlike the switches (1) to (9), the contact is turned off when the action part is pushed in, and the contact is turned on when the action part is projected. When the harness connector (plug) is removed, it always abuts against the working portion and the contact is turned off at least once.

  The switch may include, for example, a magnet and a contact that is turned on and off by the magnet. In this case, the action parts (1) to (10) correspond to magnets. Or you may make it provide a magnet in the side surface or edge of a case, the back surface of a main board | substrate, the back surface of a semiconductor element, and the side surface of a connector.

  When the flag is set or the signal is output, the main board, the case for storing the main board, the semiconductor element mounted on the main board, and the wire harness attached to the connector It is preferable to determine that at least one of the devices has been removed and to perform at least one of error notification or game stop.

  According to the present invention, when a power supply voltage drops, a flag indicating that is set or a backup power supply to a semiconductor element that outputs a signal is supplied to a main board, a case containing the main board, and the main board. Performs via a switch provided to turn off when at least one of the mounted semiconductor element and the wire harness attached to the connector is removed, and backs up when any of these is removed By stopping the supply of power, and confirming whether a flag indicating a decrease in power supply voltage is set in the semiconductor element when the power is turned on or whether the semiconductor element outputs a signal indicating a decrease in power supply voltage It is possible to detect whether the main board or the like has been removed. When it is determined that the main board or the like has been removed, fraudulent acts can be suppressed by notifying an error or stopping the game.

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 of the liquid crystal display device, a speaker 201, and an LED substrate 202 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.

  The gaming machine according to the first embodiment of the present invention further includes a main board 1, a case (described later) for housing the main board, a semiconductor element such as a ROM mounted on the main board 1, and a wire harness attached to the main board 1. The switch SW is provided so as to be turned off when at least one of the switches is removed. The contact output of the switch SW is input to the sub-board 2. The switch SW will be described in detail later.

  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.

  The reel unit 70 can be removed from the slot machine main body 120. As shown in FIG. 3, the upper door 130U of the door 130 (the casing of the gaming machine shown in the figure is configured so that the upper and lower sides of the door 130 can be opened and closed independently) is opened, and the reel unit 70 is opened. Can be pulled out and removed. The main board 1 is attached to the back of the reel unit 70.

  As shown in FIG. 4, the main board 1 is accommodated in the case 1-1, and cannot directly touch the main board 1 from the outside. Further, the case 1-1 is fixed to the inside of the back surface of the slot machine main body 120, and the main board 1 cannot be removed as long as the main board 1 is stored in the case 1-1. A plurality of openings A are provided in a part of the case 1-1, and by inserting a plurality of wire harnesses WH here, the connector P of the wire harness WH is fitted to the connector S provided on the main board 1, It is designed to be electrically connected. A connector (plug) P is attached to the end of the wire harness WH.

  FIG. 5 shows an exploded perspective view of the main board 1 and the case 1-1 for housing it. The case 1-1 that houses the main board includes a front cover 1-1b and a rear cover 1-1a. The rear cover 1-1a is attached to the back side inside the slot machine main body 120. The front cover 1-1b is attached to the rear cover 1-1a with a known special screw (a screw that cannot be loosened once tightened) 1-1c, and unless the cover 1-1 is destroyed, the front cover 1-1b The rear cover 1-1a cannot be separated, and therefore the main board 1 is sealed so that it cannot be easily removed. On the main board 1, a connector (socket) S that fits with the connector (plug) P of the wire harness WH is provided.

  A protrusion Y is provided on the left side surface of the front cover 1-1b toward the rear cover 1-1a, and a recess X is provided in a portion of the rear cover 1-1a corresponding to the protrusion Y. In the concave portion X, a switch SW including an action portion (for example, a rod-shaped or convex shape) Z for turning on and off is provided. When the action part Z protrudes, the contact provided inside the switch SW is turned off, and when the action part Z is pushed in, the contact of the switch SW is turned on (in the following description, the switch SW The ON / OFF state of the SW contact may be simply referred to as ON / OFF state of the switch SW). When the front cover 1-1b is attached to the rear cover 1-1a, that is, when the main board 1 is sealed, the switch SW is turned on. In a state where the front cover 1-1b is removed from the rear cover 1-1a and the ROM of the main board 1 can be exchanged or the main board 1 itself can be exchanged, the switch SW is turned off. It is determined whether or not the seal of the main board 1 is released through the on / off operation of the switch SW.

  The operation of the switch SW will be further described with reference to FIG. FIG. 6 is a left side view of the cover 1-1. FIG. 6A shows a state where the front cover 1-1b is removed from the rear cover 1-1a, and FIG. 6B shows the front cover 1-1b. Shows a state of being attached to the rear cover 1-1a. In the state shown in FIG. 9A, since the projection Y of the front cover 1-1b is not fitted in the recess X of the rear cover 1-1a, the action portion Z of the switch SW provided there protrudes. The switch SW is off. In the state shown in FIG. 5B, the protrusion Y is fitted into the recess X, and the action portion Z of the switch SW provided there is pushed, so that the switch SW is turned on.

  FIG. 7 shows another way of attaching the switch SW. In FIG. 7, a switch SW is provided outside the case 1-1. For example, the switch SW is placed on the inner side of the upper surface of the gaming machine housing so that the action portion Z of the switch SW contacts the side surface of the front cover 1-1b with the front cover 1-1 attached to the rear cover 1-1a. Has been placed. With the front cover 1-1b attached to the rear cover 1-1a, the action part Z of the switch SW is pushed in on the side surface of the front cover 1-1b, and the contact of the switch SW is on (FIG. 7B). )reference). When the front cover 1-1b is removed, the action part Z protrudes from the switch SW, and the contact of the switch SW is turned off (see FIG. 7A).

  The switch SW may be, for example, a reed switch including a magnet and a contact point that is turned on / off by the magnet. In this case, magnets are provided on the side surfaces of the protrusion X and the front cover 1-1b.

  FIG. 8 shows a connection diagram between the switch SW and the sub-board 2 according to the first embodiment of the present invention. This figure shows only the parts necessary for explaining the operation of the first embodiment of the present invention, and the display of the CPU and ROM on the sub-board 2 and the display of address signals and data signals are omitted.

  In FIG. 8, 2b is a backup power source for supplying power when the power is turned off. The backup power source 2b is a secondary battery such as a lithium battery, but the present invention is not limited to the secondary battery. A battery such as a primary battery or a capacitor may be used. 2c is a real-time clock IC (semiconductor element, which is a “power supply voltage drop detection semiconductor element” having a function of detecting a drop in the power supply voltage as will be described later. . The RTC 2c is a commercially available IC, and has, for example, a calendar function and a counter function for year, month, date, day of the week, hour, minute, and second, and functions such as a time alarm, an interval timer, and a time change interrupt. A determination unit 2d determines whether or not the case 1-1 of the main board 1 has been removed (specifically, the front cover 1-1b has been removed from the rear cover 1-1a). The determination unit 2d can read the contents of data and flags from the RTC 2c, write data to the RTC 2c, and set or reset the flags. The determination unit 2d is realized by a CPU (not shown) that operates according to a predetermined program, for example. The CPU of the sub-board 2 can also serve as the CPU of the determination unit 2d. In addition to determining whether or not the case 1-1 of the main board 1 is removed, the determination unit 2d may determine the deterioration of the backup power source 2b. Reference numeral 2e denotes a diode that receives the power supply (DC voltage) VDD of the substrate and supplies it to the backup power supply 2b for charging, and also prevents the current of the backup power supply 2b from flowing back to the power supply VDD at the time of power-off backup.

  In FIG. 8, the backup power supply 2b is mounted on the sub-board 2. However, at least a part of the power supply line from the backup power supply 2b to the RTC 2c is arranged to pass through the contact C of the switch SW. That is, the power supply line from the backup power supply 2b to the RTC 2c is first connected from the backup power supply 2b to the terminal 2a-1 of the connector 2a, and the switch SW is brought into contact with the terminal 6-1 of the connector 6 corresponding to this terminal. Enters one of the contacts C. The power supply line returns from the other end of the contact C of the switch SW to the sub-board 2 via the terminal 6-2 of the connector 6 and the terminal 2a-2 of the connector 2a, and is connected to the power supply terminal of the RTC 2c. The connector 6 is a plug provided at the end of the wire harness of the switch SW.

  For reference, FIG. 13 shows a conventional connection between the backup power supply 2b and the RTC 2c. Conventionally, they are directly connected and do not go through the switch SW.

  The apparatus / method according to the first embodiment of the present invention supplies backup power to the power drop detection semiconductor element (RTC) 2c on the sub-substrate 2 via the contact C of the switch SW, and When the case 1-1 is removed, the backup power supply to the RTC 2c is stopped, and the internal flag of the RTC is checked when the power is turned on to check whether the backup power supply is stopped when the power is cut off. In this way, it is confirmed whether or not the case 1-1 of the main board 1 has been removed. The RTC 2c has a flag register therein, and at least one bit thereof is a flag (VLF (Voltage Low Flag) bit) set when the power supply voltage is lowered. When the VLF bit is set (= 1), it means that the time data or the like may be lost due to a decrease in power supply voltage or the like, and it is recommended to initialize the registers and the like.

  If the case 1-1 of the main board 1 is not removed, the power backup is performed normally, and the VLF bit of the internal flag should not be set (= 0) when the power is turned on. If the VLF bit is set, it can be determined that the case 1-1 of the main board 1 may have been removed (the same phenomenon occurs even when the backup power supply 2b deteriorates. Since it is necessary to report an error in the same manner as the detection, there is no problem even if the processing described below is performed including the case of backup power supply deterioration.

FIG. 9 shows a processing flowchart when the power switch is turned on, and FIG. 10 to FIG. The operation of the first embodiment of the invention will be described with reference to these drawings.
When the power switch is on, the power supply VDD is supplied to the RTC 2c and the backup power supply 2b is charged as shown by a thick line in FIG.
When the voltage of the power supply VDD decreases, power is supplied from the backup power supply 2b to the RTC 2c as shown by a thick line in FIG. Therefore, even if the power switch is turned off, the flag (VLF bit) of the RTC 2c is not set.

  Next, when the power switch is turned on, the power supply voltage rises and quickly reaches the specified value. At that time, a reset signal is usually generated, and the CPU or the like starts an initial operation in the subsequent period. The process of FIG. 9 is performed as one of the initial operations.

  That is, the RTC 2c flag register is checked (S10), and it is checked whether the VLF bit is set (S11). When the VLF bit is not set (NO), it means that the battery is backed up even when the power of the RTC 2c is cut off. Therefore, the case 1-1 of the main board 1 is not removed and the backup power supply 2b is normal. It can be judged. Since this is a normal state, normal activation processing is performed (S13).

  On the other hand, if the case 1-1 of the main board 1 is removed during the power-off period (when the main board 1 or its ROM is replaced and in order to enable the ROM, the power is turned on once. The power supply to the RTC 2c is cut off when the case 1-1 of the main board 1 is removed as shown in FIG. This is because at least a part of the power supply line from the backup power supply 2b to the RTC 2c is arranged so as to pass through the contact C of the switch SW. In the state of FIG. 12, the VLF bit of the RTC 2c is set (= 1), and the bit is not reset (= 0) even when power is supplied again. As a result, the determination result in S11 is YES, error processing is performed, and it is notified that the case 1-1 of the main board 1 has been removed (S12). After this, the normal activation process is not performed, so that the game cannot be performed. Note that error processing may be performed when a VLF bit set is detected even during a period other than the power-off period.

  According to the first embodiment of the invention, the backup power is supplied to the semiconductor element (RTC) through the contact of the switch, and the supply of the backup power to the semiconductor element is cut off when the case of the main board is removed. And cause bad backups. Since the flag of the semiconductor element is checked by the determination unit when the power is turned on, a backup failure is detected when the case of the main board is removed, and the case 1-1 of the main board 1 may be removed. It is determined that there is a possibility, and the game is stopped by moving to an error state. The error state has a meaning that the case 1-1 of the main board 1 has been removed together with the meaning of backup failure due to deterioration of the backup power supply. With the configuration as described above, it is possible to detect an unauthorized exchange of the main board 1 and notify an error, and it is possible to suppress an unauthorized act of falsifying the control program.

  In the above description, the power supply voltage drop detection semiconductor element received by the backup power supply has been described by taking the real time clock IC (RTC) as an example. However, this is only an example, and other semiconductor elements may be used. it can. For example, it is possible to use an IC that detects this when the power is lowered and outputs a signal (for example, a reset signal), and holds the output until the power is turned on, for example, by a register or a nonvolatile memory (EEPROM, etc.).

Embodiment 2 of the Invention
In Embodiment 1 of the present invention, the backup power supply 2b is mounted on the sub-board 2, but the present invention is not limited to this. For example, as shown in FIG. 14, the backup power source 2b may be mounted on a circuit of the switch SW (a wiring harness or a board on which the switch SW is attached). In the configuration of FIG. 14, at least a part of the power supply line from the backup power supply 2b to the RTC 2c can be arranged so as to pass through the contact C of the switch SW. The configuration of FIG. 14 also provides the same operational effects as those of the first embodiment.

  In the above description, the determination unit 2d detects that the case 1-1 of the main board 1 has been removed, but the present invention is not limited to this. Other examples are listed below. In the following example, the wiring of the switch SW and the processing of the determination unit 2d are the same as in the above description, and only the mounting position of the switch SW is different.

(A) Detecting that main board is removed (see FIGS. 15A to 15C)
In FIG. 15A, a switch SW is provided on the inner surface of the rear cover 1-1a. In a state where the main board 1 is attached to the rear cover 1-1a, the action part Z of the switch SW is pushed in on the back surface of the main board, and the contact of the switch SW is on. When the main board 1 is removed from the rear cover 1-1a, the action part Z protrudes from the switch SW, and the contact of the switch SW is turned off. As a result, the supply of backup power is cut off, and the RTC 2c flag is set. Based on this, the determination unit 2d determines that the main board 1 has been removed.

  In FIG. 15B, a switch SW is provided on the inner surface (for example, the inner side of the back surface) of the gaming machine housing. The action part Z of the switch SW is in contact with the back surface of the main board 1 through an opening H provided in the rear cover 1-1a. The action part Z of the switch SW is longer than the thickness of the rear cover 1-1a. In this state, the contact of the switch SW is on. When the main board 1 is removed from the rear cover 1-1a, the action part Z protrudes from the switch SW, and the contact of the switch SW is turned off. As a result, the supply of backup power is cut off, and the RTC 2c flag is set. Based on this, the determination unit 2d determines that the main board 1 has been removed. In this example, since the action part Z of the switch SW must be passed through the opening H, it is also useful for positioning the rear cover 1-1a.

  In FIG. 15C, when there is no rear cover 1-1a and only the front cover 1-1b is provided, a switch SW is provided on the inner surface of the gaming machine housing. The action part Z of the switch SW is in contact with the back surface of the main board 1. In this state, the contact of the switch SW is on. When the main board 1 is removed from the inner surface of the gaming machine housing, the action part Z protrudes from the switch SW, and the contact of the switch SW is turned off. As a result, the supply of backup power is cut off, and the RTC 2C flag is set. Based on this, the determination unit 2d determines that the main board 1 has been removed.

(B) Detecting that the ROM mounted on the main board has been removed (see FIG. 16)
In FIG. 16, a switch SW is provided on the inner surface of the gaming machine housing or the inner surface of the rear cover 1-1a. The action part Z of the switch SW is in contact with the back surface of a ROM (semiconductor element) that can be attached and detached through an opening H provided in the main substrate 1. The action part Z of the switch SW is longer than the thickness of the main board 1. In this state, the contact of the switch SW is on. When the ROM is removed from the main board 1, the action part Z protrudes from the switch SW, and the contact of the switch is turned off. As a result, the supply of backup power is cut off, and the RTC 2C flag is set. Based on this, the determination unit 2d determines that the ROM has been removed from the main board 1. In this example, since the action part Z of the switch SW must be passed through the opening H, it is useful for positioning the main board 1.

(C) It is detected that the wire harness connected to the main board has been removed (see FIGS. 17A to 17D).
Fig.17 (a) shows the case where the connector cover 1-1d which covers the connector P of the wire harness WH is provided. A switch SW is provided on the inner surface of the gaming machine housing or the inner surface of the rear cover 1-1a. The action part Z of the switch SW is in contact with the end of the connector cover through the opening H provided in the main board 1. The action part Z of the switch SW is longer than the thickness of the main board 1. In this state, the contact of the switch SW is on. When the connector cover 1-1d is removed, the action part Z protrudes from the switch SW, and the contact of the switch SW is turned off. As a result, the supply of backup power is cut off, and the RTC 2C flag is set. Based on this, the determination unit 2d determines that the connector P has been removed from the main board 1. In this example, since the action part Z of the switch SW must be passed through the opening H, it is useful for positioning the main board 1.

  FIG. 17B shows a case where a connector cover is provided as described above. A switch SW is provided on the inner surface (for example, the inner side surface) of the gaming machine housing. In a state in which the connector cover 1-1d is attached, the action part Z of the switch SW is disposed so as to contact the side surface of the connector cover 1-1d. In this state, the action part Z of the switch SW is pushed in on the side surface of the connector cover 1-1d, and the contact of the switch SW is on. When the connector cover 1-1d is removed, the action part Z protrudes from the switch SW, and the contact of the switch SW is turned off. As a result, the supply of backup power is cut off, and the RTC 2c flag is set. Based on this, the determination unit 2d determines that the connector P has been removed from the main board 1.

  FIG. 17C shows a case where the action part Z of the switch SW contacts the side surface of the connector P. A switch SW is provided on the inner surface of the gaming machine housing. In a state where the connector P of the harness WH is attached, the action part Z of the switch SW is disposed so as to contact the side surface of the connector P. In this state, the action part Z of the switch SW is pushed in on the side surface of the connector P, and the contact of the switch SW is on. When the connector P is removed, the action part Z protrudes from the switch SW, and the contact of the switch SW is turned off. As a result, the supply of backup power is cut off, and the RTC 2c flag is set. Based on this, the determination unit 2d determines that the connector P has been removed from the main board 1.

  FIG. 17D shows a case where the action part Z of the switch SW comes into contact with the connector P when the connector P is removed. A switch SW is provided on the inner surface of the gaming machine housing. When the connector P of the harness WH is removed, the action part Z of the switch SW is disposed so as to contact the connector P. In a state where the harness connector P is attached, the action portion Z projects from the switch SW, and the contact of the switch SW is on. Unlike the switch, the contact is turned off when the action part Z is pushed in, and the contact is turned on when the action part Z is projected. When the connector P of the harness is removed, the side surface of the connector P comes to the position of the dotted line in the figure, so that it always comes into contact with the action portion Z, and the contact is turned off at least once. As a result, the supply of backup power is cut off, and the RTC 2c flag is set. Based on this, the determination unit 2d determines that the connector P has been removed from the main board 1.

  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 block diagram of a gaming machine. It is a perspective view which shows the state which took out the reel unit from the gaming machine. It is a perspective view of the main board | substrate and the case which accommodates this. It is a disassembled perspective view of a main board | substrate and the case which accommodates this. It is a left view of the case for demonstrating operation | movement of a switch. It is a left view of the case for demonstrating the other attachment method and operation | movement of a switch. It is a block diagram which shows the backup power supply system which concerns on Embodiment 1 of invention. It is a process flowchart at the time of ON of the power switch which concerns on Embodiment 1 of invention. It is a block diagram for demonstrating operation | movement of Embodiment 1 of invention (at the time of a power supply ON and a backup power supply non-operation). It is a block diagram for demonstrating operation | movement of Embodiment 1 of invention (at the time of a power-off and backup power supply operation | movement). It is a block diagram for demonstrating operation | movement of Embodiment 1 of invention (the state which removed the case of the main board | substrate at the time of a power-off). It is a block diagram which shows the conventional backup power supply system. It is a block diagram which shows the backup power supply system which concerns on Embodiment 2 of invention. It is explanatory drawing of the other example of arrangement | positioning of a power switch. It is explanatory drawing of the other example of arrangement | positioning of a power switch. It is explanatory drawing of the other example of arrangement | positioning of a power switch.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main board 1-1 Case which accommodates main board 1-1a Case back cover 1-1b Case front cover 1-1c Screw 1-1d Connector cover 2 Sub board 2a Connector 2a-1 1st terminal 2a-2 1st 2 terminals 2b Backup power supply 2c RTC (Power supply voltage drop detection semiconductor element)
2d determination unit 2e diode 6 connector 6-1 first terminal 6-2 second terminal 70 reel unit 71 reel position detection circuit 80 hopper driving unit 81 hopper 82 medal detection unit 100 slot machine 120 slot machine main body 130 door 131 game display unit 132 medal insertion port 133 reject button 134 start switch 135 payout port 140 stop button 200 liquid crystal control board 201 speaker 202 LED board A front cover opening C switch contact H opening P wire harness connector (plug)
S Main board connector (socket)
SW switch WH Wire harness (harness)
X Rear cover recess Y Front cover projection Z Switch action

Claims (2)

In a gaming machine comprising a main board that performs a lottery process relating to a game, a case that houses the main board, and a sub board that receives a command signal from the main board and performs an effect process.
The main board is equipped with a detachable semiconductor element and a connector for attaching a wire harness that transmits an electrical signal to the sub-board ,
And a push-button switch, which is provided so as to be off when the cases have been removed to accommodate the previous SL main board,
A backup power supply for supplying power when the power is turned off;
A power supply voltage drop detection semiconductor element receiving power from the backup power supply;
And a determination unit for determining presence or absence of removal of the cases for accommodating the main board,
The power supply voltage drop detection semiconductor element sets a flag indicating that when power supply is cut off,
The determination unit determines the presence or absence of removal of the cases for housing the pre SL main board-out based on the flag of the power supply voltage drop detection semiconductor element when the power is turned on,
The contact point of the push button switch is connected to a terminal of a connector that is coupled to a connector provided on the sub-board,
The power supply line from the backup power supply to the power supply voltage drop detection semiconductor element is:
Enter the first terminal of the connector of the sub-board from the backup power supply,
Enters the one contact of the push button switches through the first terminal of the connector of the push button switch that contacts the first terminal of the connector of the auxiliary substrate,
Enters the second terminal of the connector of the push button switch from the other contact of the push button switch,
Return to the sub-board through the second terminal of the sub-board connector contacting the second terminal of the push-button switch connector;
A gaming machine, wherein the power supply terminal of the power supply voltage drop detection semiconductor element is entered from the second terminal of the connector of the sub-board. When the flag is set, according to claim 1 attached to the cases for storing the previous SL main board determines that removal there, and performing at least one of the error notification or the game stop The gaming machine described.

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