Gaming machine

Abstract

To provide a gaming machine that can prevent assembly into Kure. [Solution] The sub-board 444 is housed in a sub-board case 442, which consists of a case body 674 and a case lid 672. The sub-board 444 is provided with a development connector placement area 640 indicating the arrangement of development connectors, and the case lid 672 is provided with a projection 670 that protrudes toward the development connector placement area 640 at a position facing the development connector placement area 640 of the sub-board 444.

Description

【Technical Field】 【0001】 The present invention relates to a gaming machine. 【Background Art】 【0002】 Conventionally, gaming machines (rotary gaming machines, slot machines) having a plurality of reels with symbols arranged on the outer peripheral surface are known. This type of gaming machine gives a certain gaming value to gaming media such as medals and pachinko balls, and conducts a game for acquiring such gaming media. Also, in this type of gaming machine, when a player inserts gaming media into a predetermined insertion port and a prescribed number of gaming media are bet, a game start operation becomes possible. Triggered by the player's rotation start operation, an internal lottery is performed and the rotation of a plurality of reels is started. Triggered by the player's stop operation, control is performed to stop the plurality of reels in a manner corresponding to the result of the internal lottery. Then, the result of the game is determined by the symbol combination displayed on the effective line in the state where the plurality of reels have stopped, and payouts such as medals are made according to the result of the game. 【0003】 This type of gaming machine includes a main board for controlling the game and a sub-board for controlling the effects, and these boards are installed inside the housing while being housed in a board case (see Patent Document 1). 【Prior Art Documents】 【Patent Documents】 【0004】 【Patent Document 1】 Japanese Patent Application Laid-Open No. 2020-103947 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0005】 In the development of the gaming machine as described above, there may be a mixture of development boards and mass-production boards at the development stage, and it is required to prevent misassembly of assembling the development board and the mass-production board case by mistake. 【0006】 This invention has been made in view of the above circumstances, and its purpose is to provide a gaming machine that can prevent assembly failure. [Means for solving the problem] 【0007】 (1) The present invention relates to a gaming machine comprising a circuit board and a circuit board case, wherein the circuit board is provided with a predetermined area indicating the placement of electronic components that are not mounted during mass production, and the circuit board case is provided with a protrusion facing the predetermined area that protrudes toward the predetermined area. 【0008】 In this invention, the substrate is provided with a predetermined area indicating the placement of electronic components that will not be mounted during mass production. A protrusion is provided on the substrate case that faces the predetermined area, so that when attempting to assemble a development substrate with electronic components mounted that will not be mounted during mass production with the substrate case, the protrusion on the substrate case will interfere with the electronic components in the predetermined area, preventing assembly. This prevents the incorrect assembly of the substrate case and the development substrate. 【0009】 (2) In the gaming machine of the present invention, the protruding portion may be formed such that the facing portion that faces the predetermined region is located within the predetermined region. 【0010】 In this way, the protruding part of the circuit board case can be prevented from interfering with the periphery of a predetermined area of ​​the circuit board. 【0011】 (3) In the gaming machine of the present invention, a plurality of vertical mating connectors are provided at positions on the circuit board different from the predetermined region, the electronic component is a vertical mating connector, and the protruding portion is formed such that the distance between the facing portion that faces the predetermined region and the surface of the circuit board is shorter than any of the heights of the plurality of vertical mating connectors. 【0012】 In this way, regardless of the height of the vertically mating connector mounted in a predetermined area of ​​the development board, the protruding part of the board case will not interfere with the connector in a predetermined area of ​​the development board and prevent them from fitting together, thus preventing the board case and the development board from being assembled incorrectly. [Brief explanation of the drawing] 【0013】 [Figure 1] This is a perspective view showing the external configuration of a gaming machine according to the first embodiment of the present invention. [Figure 2] This is a perspective view showing the internal configuration of a gaming machine according to the first embodiment of the present invention. [Figure 3] This is a perspective view showing the back side of the front door of a gaming machine according to the first embodiment of the present invention. [Figure 4] This is a front view showing a schematic representation of the external configuration of a gaming machine according to the first embodiment of the present invention. [Figure 5] Figure 4 shows a cross-sectional view along the YY line. [Figure 6] This figure illustrates a predetermined area in the main circuit board case of a gaming machine according to the first embodiment of the present invention. [Figure 7] This is an enlarged view (schematic diagram) of the main part illustrating the reel relay board unit in a gaming machine according to the first embodiment of the present invention. [Figure 8] This is a diagram illustrating a predetermined space in a gaming machine according to the first embodiment of the present invention. [Figure 9] This figure illustrates a predetermined area in the reel relay board case of a gaming machine according to the first embodiment of the present invention. [Figure 10] This figure illustrates the cooling fan installation section of the sub-board case in a gaming machine according to the first embodiment of the present invention. [Figure 11] This is a schematic rear view of the storage box for a gaming machine according to the first embodiment of the present invention. [Figure 12] This is a schematic rear view showing the storage box of the gaming machine according to the first embodiment of the present invention, with the back panel removed. [Figure 13] This is a schematic rear view of the storage box for a gaming machine according to the first embodiment of the present invention. [Figure 14] It is a perspective view showing an outline of a sub-board unit of a gaming machine according to a second embodiment of the present invention. [Figure 15] It is a front view showing an outline of a sub-board unit of a gaming machine according to a second embodiment of the present invention. [Figure 16] It is a front view of a sub-board in a gaming machine according to a second embodiment of the present invention, and is a partially enlarged view (schematic view) explaining a development connector arrangement area of the sub-board. [Figure 17] It is a perspective view of a case lid of a sub-board case in a gaming machine according to a second embodiment of the present invention, and is a partially enlarged view (schematic view) explaining a protruding portion of the case lid. [Figure 18] It shows a sub-board case of a gaming machine according to a second embodiment of the present invention. (A) is a perspective view of the board case and is a partially enlarged view (schematic view) explaining a protruding portion of the case lid. (B) is a front view of the sub-board and is a partially enlarged view (schematic view) explaining a protruding portion of the case lid. [Figure 19] It is a side view of a sub-board case in a gaming machine according to a second embodiment of the present invention, and is a schematic view explaining a protruding portion of the case lid. [Figure 20] It is a front view (schematic view) showing an internal configuration of a gaming machine according to a third embodiment of the present invention. [Figure 21] It is a main part enlarged view (schematic view) explaining a concentrated terminal board unit in a gaming machine according to a third embodiment of the present invention. [Figure 22] It is a front view (schematic view) showing an internal configuration of a gaming machine according to a third embodiment of the present invention, and is an explanatory view explaining a positional relationship between a concentrated terminal board unit and a through hole. [Figure 23] It is a front view (schematic view) showing an internal configuration of a gaming machine according to a modified example of a third embodiment of the present invention, and is an explanatory view explaining a positional relationship between a concentrated terminal board unit and a through hole. [Figure 24] It is a view explaining a sub-board unit in a gaming machine according to a modified example of an embodiment of the present invention. [Figure 25] It is a view explaining a predetermined area in a main board case of a gaming machine according to a modified example of an embodiment of the present invention. [Figure 26] This is an enlarged view (schematic diagram) of a key part illustrating a reel relay board unit in a gaming machine that is a modified embodiment of the present invention. [Figure 27] This is a schematic rear view showing a storage box for a gaming machine, which is a modified example of an embodiment of the present invention. [Figure 28] This diagram illustrates the positional relationship between the fixing points of the top plate and back plate with wood screws and the mounting holes of the top plate in a modified embodiment of the present invention. [Modes for carrying out the invention] 【0014】 Embodiments of the present invention will be described below. The embodiments described below are not intended to unduly limit the scope of the present invention as described in the claims. Furthermore, not all configurations described in these embodiments are necessarily essential components of the present invention. 【0015】 1. First Embodiment 1-1. Composition Figure 1 is a perspective view showing the external configuration of the gaming machine of this embodiment, Figure 2 is a perspective view showing the internal configuration of the gaming machine of this embodiment, and Figure 3 is a perspective view showing the back of the front door of the gaming machine of this embodiment. 【0016】 In the following explanation, "front and back" generally means that when the player is in front of the gaming machine, the player's side is "front" and the gaming machine side is "back." "Up and down" means that the top of the gaming machine is "up" and the bottom is "down." "Left and right" means that the left hand side of the player playing the gaming machine is "left" and the right hand side is "right." 【0017】 The gaming machine of this embodiment is a type of gaming machine that is commonly known as a slot machine or reel-type gaming machine, and uses tokens as the game medium (game value) for gameplay. 【0018】 The gaming machine of this embodiment houses a reel unit 310 consisting of a first reel R1 to a third reel R3 (multiple reels) within a box-shaped casing consisting of a storage box BX (an example of the gaming machine body) with a front opening and a front door FD (an example of the front door). Below the reel unit 310 inside the casing is a power supply unit 305, which has a built-in power supply and is equipped with various switches such as a power switch and a reset switch, and a hopper unit 320, which serves as a medal dispensing device. The casing of the gaming machine of this embodiment also houses a control board that controls the operation of the gaming machine, which is equipped with a CPU (an example of a calculation means), ROM (an example of an information storage medium), RAM (an example of a temporary storage means), etc. In this embodiment, the control board includes multiple types of electronic circuit boards, including a main board 414 that controls the progress of the game and a sub-board 444 that receives signals transmitted from the main board 414 and performs control to execute game effects according to the progress of the game. Furthermore, the gaming machine casing of this embodiment is also provided with a reel relay board for connecting the main board 414, the reel unit 310, and the power supply unit 305, as well as a centralized terminal board (an example of a connection terminal board) for transmitting signals to external devices (such as data display devices and hall computers). 【0019】 The front door FD of the storage box BX, which can be opened and closed to close the front (an example of the front), is provided with an indicator window DW that allows observation of the rotation and stopped states of the first reel R1 to the third reel R3. 【0020】 Furthermore, in the gaming machine of this embodiment, each reel is provided with an upper, middle, and lower display position for observing the symbols through the display window DW, and the active lines are set by the combination of the display positions of each reel. In the gaming machine of this embodiment, when the number of medals required for one game, the so-called prescribed number of medals, is inserted (bet), the active lines consisting of the middle positions of the first reel R1 to the third reel R3 are activated. 【0021】 The game result is determined by the combination of symbols that stop and are displayed on the active lines in the display window DW. If the combination of symbols on the active lines corresponds to a predetermined winning combination, the hopper unit 320 dispenses medals as if the winning combination has been achieved. 【0022】 The front door FD is also equipped with a rotating light LP and a frame lamp AL for gameplay effects. The rotating light LP performs rotating, lighting, and flashing actions to enhance the gameplay, while the frame lamp AL also performs lighting and flashing actions to enhance the gameplay. 【0023】 Furthermore, in this embodiment of the gaming machine, multiple speakers SP are provided on the front door FD for displaying game effects. These speakers SP output various sounds to assist or enhance the gaming experience. 【0024】 Furthermore, various operating means are provided in the center of the front door FD. These operating means include a bet button (insertion operation means, game operation means) B0 for inserting credited (internally stored) tokens, a start lever (game start operation means, game operation means) SL for initiating the game by rotating the first reel R1 to the third reel R3, stop buttons (stop operation means, game operation means) B1 to B3 for initiating the operation to stop each of the first reel R1 to the third reel R3, which are rotated by stepping motors, and a settlement button (predetermined operation means, settlement operation means, game operation means) B4 for settling the credited (internally stored) tokens. 【0025】 The front door FD may be divided into multiple doors, such as an upper and lower section. Furthermore, the gaming machine of this embodiment may be a so-called separable type, in which, when changing machines in a gaming hall, the storage box BX, the lower section of the front door FD, the power supply unit 305, and the hopper unit 320 remain attached to the island equipment of the gaming hall, while the upper section of the front door FD and the reel unit 310 can be replaced. 【0026】 In this embodiment of the gaming machine, when a player inserts a medal into the medal slot MI or presses the bet button B0, the machine is set to a ready state where rotation control of the first reel R1 to the third reel R3 can be started, and the start lever is enabled. When the player presses the start lever SL, the control board starts the rotation of the first reel R1 to the third reel R3 by driving the stepping motor, and an internal lottery is performed using random values. Once the rotation speed of the first reel R1 to the third reel R3 has increased to a predetermined speed, the stop buttons B1 to B3 are enabled. 【0027】 Subsequently, when the player presses stop buttons B1 to B3 at any time, the stop switches (stop signal output means: for example, a photosensor, a continuity sensor, a pressure sensor, etc.) built into each of the stop buttons B1 to B3 are activated, changing the reel stop signal input to the control board from the off state to the on state. 【0028】 Furthermore, when the player releases stop buttons B1 to B3 at any time, the stop switches corresponding to each of the stop buttons B1 to B3 turn off, changing the reel stop signal input to the control board from the ON state to the OFF state. 【0029】 The control board then stops the first reel R1 to the third reel R3 at a stopping position corresponding to the result of an internal lottery, based on the change in the reel stop signal state from the off state to the on state, which changes in response to the timing of pressing and releasing the stop buttons B1 to B3. 【0030】 Furthermore, the lower part of the front door FD is equipped with a medal dispenser and a medal tray MP, and the number of medals corresponding to the game result is dispensed from the medal dispenser into the medal tray MP. 【0031】 Furthermore, the gaming machine of this embodiment is provided with a door sensor (detection means) that detects the open / closed state of the front door FD, and is configured to detect the open / closed state of the front door FD based on an input signal (detection signal) input from the door sensor to the control board (main board 414). 【0032】 In this embodiment, as shown in Figures 1 and 2, the storage box BX comprises a top plate 400, a back plate 402, a bottom plate 404, and left and right side plates 406, 408, and is made of wood or the like. However, the material of the storage box BX is not limited to wood, and may be synthetic resin, metal, or the like. Furthermore, the material of the storage box BX is not limited to one type; for example, part of it (top plate 400) may be made of wood, and the rest (back plate 402, bottom plate 404, and left and right side plates 406, 408) may be made of resin. Also, the top plate 400 may have a structure in which two plates are stacked, for example, a plate of resin (outer) and a plate of metal (inner). 【0033】 Furthermore, the top panel 400 of the storage box BX is provided with multiple mounting holes 420. The mounting holes 420 are holes used when attaching the gaming machine to the island equipment in the gaming hall (island fixing holes), and are through holes. 【0034】 The worker, with the front door FD open, screws (for example, wood screws) serving as fixing members (fastening members) are screwed into the mounting holes 420 from the inside of the storage box BX (casing) from bottom to top, and then the screws are also screwed into the mating member (the island-side member) to fix the gaming machine to the island equipment. As a result, the heads of the screws are positioned on the inside of the storage box BX (casing). The mounting holes 420 are formed so that screws can be screwed into them, and the diameter of the mounting holes 420 is smaller than, for example, the diameter of the threaded portion (thread portion) of the screw (outer diameter of the thread portion). In this embodiment, the mounting holes 420 are circular (round holes), but they may be elliptical, elongated, etc., as long as they can accommodate screws. Furthermore, the mounting holes 420 are not limited to through holes and may be non-through holes, for example, recessed shapes with a certain depth provided on the inner surface of the top plate 400. Furthermore, the fastening members are not limited to screws; other fastening members such as nails may also be used. 【0035】 In this embodiment, the mounting holes 420 are arranged in a row at predetermined intervals along the front-to-back direction (depth direction) on the left and right sides of the top plate 400. Specifically, there are a total of six mounting holes 420: three on the left side and three on the right side. It is not necessary for all six mounting holes 420 to be used for mounting (fixing) the gaming machine. That is, it is sufficient to have at least one mounting hole 420 on both the left and right sides of the top plate 400. However, when six mounting holes 420 are provided as in this embodiment, the worker can appropriately select which mounting holes 420 to use. That is, they can select one of the three mounting holes 420 on the left side and one of the three mounting holes 420 on the right side. By providing multiple mounting holes 420 in this way, the position of the mounting hole 420 used can be changed in the front-to-back direction when screw tightening becomes difficult due to deterioration of the mounting mating member, etc. The mounting hole 420 can also be considered a temporary hole provided for screwing in the fixing member (screw), and serves as a guide when screwing in the fixing member (screw). 【0036】 In this embodiment, a main board unit 410 (first board unit, an example of a board unit) is provided on the upper side inside the storage box BX. The main board unit 410 comprises a base member 720 (see Figure 5), a main board 414 (an example of a first board), and a main board case 412 (an example of a first board case) that covers (houses) the main board 414, and is attached to the back plate 402 of the storage box BX via the base member 720. 【0037】 The main board 414 is equipped with multiple electronic components (CPU, ROM, RAM, etc.) and receives input signals from input means such as the bet button B0, start lever SL, stop buttons B1 to B3, payout button B4, setting change switch, setting change button, and door sensor. It performs various calculations to execute the game and controls the operation of output means such as the reel unit 310 and hopper unit 320 based on the calculation results. 【0038】 The main board 414 is also provided with multiple connectors 430. One end of a harness or cable (harness-side connector, cable-side connector) is connected to the connectors 430, and the harness or cable connects to other boards such as the sub-board 444 or the reel relay board. 【0039】 The main board case 412 is made of a transparent resin or the like and protects the main board 414. The main board case 412 is also provided with a connector opening 416 (an example of a first opening) that exposes the connector 430 of the main board 414. 【0040】 Furthermore, the main board case 412 is provided with a predetermined sealing section, and can be opened by releasing the seal imposed by this sealing section. 【0041】 In this embodiment, the main board case 412 is rotatable (openable and closable) in the left-right direction, using a vertically extending shaft (rotation axis) provided on the left side as a pivot point. 【0042】 Here, the first position (initial position, surface visible position) is defined as a position where the main board case 412 and the base member 720 are in close proximity (the back surface of the main board 414 and the plate surface of the base member 720 are facing each other), the front surface (mounting surface) of the main board 414 is visible, but the back surface of the main board 414 is not visible. In the first position, the angle between the main board case 412 (main board 414) and the base member 720 is, for example, 0°, the front surface of the main board 414 faces forward, and the back surface of the main board 414 faces backward. In the first position, the rotation of the main board case 412 can be restricted by a predetermined rotation restricting part. 【0043】 Furthermore, the second position (backside visible position) is defined as the position where the main board case 412 rotates on its left side as an axis, separating from the base member 720, so that the back surface of the main board 414 faces to the right and becomes visible. In the second position, the angle between the main board case 412 (main board 414) and the base member 720 is, for example, 90°, and the back surface of the main board 414 faces to the right (right side). The second position is preferably a position where the main board case 412 has been rotated 70° to 90°, and more preferably a position where it has been rotated 90°. The second position also includes a position where the amount of rotation (rotation) relative to the first position is the maximum. 【0044】 In this embodiment, the main board case 412 is supported by the base member 720 so as to be rotatable between a first position in which the surface of the main board 414 is visible and a second position in which the back surface of the main board 414 is visible. This makes it easy to inspect whether any unauthorized modifications have been made to the back side (back surface) of the main board 414, thereby improving work efficiency. 【0045】 The main board 414 is also provided with a setting change switch (an example of an operating means) for switching between setting change mode and game mode, and a setting change button (an example of an operating means) for changing the setting value between multiple levels (for example, 6 levels) of setting values ​​with different degrees of advantage (payout rates). In this embodiment, the system is configured to switch between starting in game mode and starting in setting change mode depending on the state of the setting change permission switch when the power is turned on. When the setting change switch is ON when the power is turned on, the system starts in setting change mode, and the setting value can be changed by operating the setting change button. 【0046】 Furthermore, the main board case 412 is provided with openings that expose the setting change switch and setting change button, allowing the setting change switch and setting change button to be operated from the outside even when the main board case 412 is closed and sealed. 【0047】 In this embodiment, a centralized terminal board unit (not shown) is provided on the upper side inside the storage box BX. The centralized terminal board unit (an example of a connection terminal board unit) comprises a centralized terminal board (an example of a connection terminal board) and a centralized terminal board case (an example of a connection terminal board case) that covers (houses) the centralized terminal board, and is attached to the right side panel 406 of the storage box BX. 【0048】 The central terminal board receives signals from the main board 414 and controls the transmission of signals (for example, signals notifying the number of medals inserted or dispensed, signals notifying the occurrence of game events such as bonus wins or AT wins, signals notifying the occurrence of errors, etc.) to external devices (data display devices, hall computers, etc.). Furthermore, only unidirectional communication is possible between the central terminal board and the main board 414, and the communication connection is such that the central terminal board cannot transmit signals to the main board 414. Similarly, only unidirectional communication is possible between the central terminal board and external devices, and the communication connection is such that external devices cannot transmit signals to the central terminal board. 【0049】 The centralized terminal board is also provided with multiple connectors. One end of a harness or cable (harness-side connector, cable-side connector) is connected to the connectors, and the harness or cable connects to the main board 414 and external devices. The connection to the external devices is made in the gaming arcade. In addition, a through-hole (not shown) is formed near the centralized terminal board unit on the right side panel 406 of the storage box BX for inserting the cable used to connect to the external devices (external device connection cable). 【0050】 The centralized terminal board case is made of transparent resin or similar material and protects the centralized terminal board. The centralized terminal board also has connector openings that expose the connectors on the centralized terminal board. 【0051】 In this embodiment, as shown in Figure 3, a sub-board unit 440 (an example of a second board unit) is provided on the upper side of the back (rear side) of the front door FD. The sub-board unit 440 comprises a sub-board 444 (an example of a board) and a sub-board case 442 (an example of a board case) that covers (houses) the sub-board 444. 【0052】 The sub-board 444 is equipped with multiple electronic components (CPU, ROM, RAM, etc.) and receives signals from the main board 414. It performs various calculations to execute effects that correspond to the progress of the game, and controls the operation of the output means of the effect devices (rotating light LP, frame lamp AL, speaker SP, etc.) based on the calculation results. The effect devices may also include liquid crystal displays that display images (still images, moving images) or movable parts that can be operated by actuators, etc. 【0053】 The sub-board 444 is also provided with multiple connectors 450. One end of a harness or cable (harness-side connector, cable-side connector) is connected to the connectors 450, and the harness or cable connects to other boards such as the main board 414. 【0054】 The sub-board case 442 is made of a transparent resin or the like and protects the sub-board 444. The sub-board case 442 is also provided with a connector opening (an example of a second opening) that exposes the connector 450 of the sub-board. 【0055】 In this embodiment, the sub-board unit 440 is equipped with a cooling fan 460, as shown in Figure 3. The cooling fan 460 is covered (housed) in the sub-board case 442, and an exhaust port 470 is formed at the installation location of the cooling fan 460 in the sub-board case 442. The operation of the cooling fan 460 causes air to be discharged from the exhaust port 470 to the outside of the sub-board case 442. This cools the CPU and other components of the sub-board 444 inside. Thus, in this embodiment, the sub-board unit 440 has a cooling fan 460 and its exhaust port 470. 【0056】 1-2. Positional relationship between the exhaust port 470 (cooling fan 460) of the sub-board unit 440 and the main board unit 410. 【0057】 The positional relationship between the exhaust port 470 (cooling fan 460) of the sub-board unit 440 and the main board unit 410 will be explained below with reference to Figures 4 to 6. Figure 4 is a front view showing a schematic of the external configuration of the gaming machine of this embodiment, Figure 5 is a cross-sectional view along the YY line shown in Figure 4, and Figure 6 is a diagram illustrating a predetermined area 480 in the main board case 412 of the gaming machine of this embodiment. 【0058】 In this embodiment, the main board unit 410 and the sub-board unit 440 are arranged to face each other when the front door FD is closed, as shown in Figure 5. In particular, the main board unit 410 is positioned to face the exhaust port 470 of the cooling fan 460 of the sub-board unit 440. As a result, air is discharged from the exhaust port 470 of the sub-board unit 440 toward the main board unit 410 by the operation of the cooling fan 460. 【0059】 In this embodiment, as shown in Figure 6, the connector opening 416 is not located in the predetermined region 480 of the main board case 412 of the main board unit 410, which is the region facing the exhaust port 470 (cooling fan 460). In other words, in this embodiment, the main board unit 410 is located in a position facing the exhaust port 470 (cooling fan 460) of the sub-board unit 440, but the connector opening 416 of the main board case 412 is located in a different position from the predetermined region 480 of the main board case 412. As a result, in this embodiment, the positional relationship between the exhaust port 470 (cooling fan 460) of the sub-board unit 440 and the main board unit 410 is such that the main board unit 410 is located in a position facing the exhaust port 470 (cooling fan 460), but the connector opening 416 of the main board case 412 is not present. 【0060】 Furthermore, in this embodiment, as shown in Figure 5, when the front door FD is closed, the cooling fan 460 (exhaust port 470) is not positioned vertically below the mounting hole 420 of the top plate 400. Here, the dashed lines a, b, and c in Figure 5 are dashed lines drawn vertically (vertically downward, directly below) from the mounting holes 420 (3 of them), respectively. In this embodiment, the cooling fan 460 (exhaust port 470) is not positioned vertically below the mounting hole 420 located furthest forward in the front-to-back direction (or vertically below any of the mounting holes 420). In other words, in this embodiment, the cooling fan 460 (exhaust port 470) is positioned in a location that is not vertically below the mounting hole 420. As a result, in this embodiment, the positional relationship between the mounting hole 420 and the cooling fan 460 (exhaust port 470) is such that the cooling fan 460 (exhaust port 470) is not positioned vertically below the mounting hole 420. 【0061】 In this embodiment, the sub-board unit 440 is installed so as to be inclined at a predetermined angle with respect to the vertical, as shown in Figure 5. Specifically, the lower end of the sub-board unit 440 is positioned in front of the upper end. In other words, in this embodiment, the sub-board unit 440 is installed so that the exhaust port 470 faces diagonally downward. 【0062】 In this embodiment, the region (predetermined region 480) facing the exhaust port 470 (cooling fan 460) in the main board case 412, and the position of the sub-board unit 440 facing the exhaust port 470 (cooling fan 460) refer to the region (predetermined region 480) or position facing the exhaust port 470 (cooling fan 460) in the horizontal direction. 【0063】 Next, the positional relationship between the exhaust port 470 (cooling fan 460) of the sub-board unit 440 and the reel relay board unit 490 will be explained with reference to Figures 7 to 9. Figure 7 is an enlarged view (schematic diagram) of the main part illustrating the reel relay board unit 490 in the gaming machine of this embodiment, Figure 8 is a diagram illustrating the predetermined space 500 in the gaming machine of this embodiment, and Figure 9 is a diagram illustrating the predetermined area 510 in the reel relay board case 492 of the gaming machine of this embodiment. 【0064】 In this embodiment, as shown in Figures 5 and 7, a reel relay board unit 490 (an example of a third board unit) is provided on the top surface of the reel unit 310. The reel relay board unit 490 comprises a reel relay board (an example of a third board) and a reel relay board case 492 (a reel relay board cover, an example of a third board case) that covers the reel relay board, and is attached to the reel unit 310. 【0065】 The reel relay board is also provided with multiple connectors. One end of a harness or cable (harness-side connector, cable-side connector) is connected to each connector, and the harness or cable then connects to the main board 414, the reel unit 310, and the power supply unit 305, among others. 【0066】 The reel relay board case 492 is made of a transparent resin or the like to protect the reel relay board. The reel relay board case 492 is also provided with a connector opening 496 (an example of a third opening) that exposes the connector of the reel relay board. 【0067】 In this embodiment, as shown in Figure 8, the reel relay board unit 490 is positioned vertically below a predetermined space 500, which is the space from the exhaust port 470 (cooling fan 460) of the sub-board unit 440 to a predetermined area 480 of the main board case 412. 【0068】 Furthermore, as shown in Figure 9, the connector opening 496 is not located in the predetermined region 510, which is the area vertically below the predetermined space 500 in the reel relay board case 492. In other words, in this embodiment, the reel relay board unit 490 is located vertically below the predetermined space 500, but the connector opening 496 of the reel relay board case 492 is located in a different position from the predetermined region 510 in the reel relay board case 492. As a result, in this embodiment, the positional relationship between the exhaust port 470 (cooling fan 460) of the sub-board unit 440 and the reel relay board unit 490 is such that the reel relay board unit 490 is located vertically below the predetermined space 500, but the connector opening 496 of the reel relay board case 492 is not present. 【0069】 In this embodiment, as shown in Figure 5, the main board unit 410 and the sub-board unit 440 are arranged to face each other when the front door FD is closed. As shown in Figure 6, a connector opening 416 is not placed in a predetermined area 480 facing the exhaust port 470 (cooling fan 460) in the main board case 412 of the main board unit 410. This prevents dust and debris discharged from the cooling fan 460 from entering the main board case 412 as much as possible, thereby preventing malfunctions caused by debris adhering to the electronic components and connectors 430 of the main board 414. 【0070】 Furthermore, in this embodiment, as shown in Figure 5, when the front door FD is closed, the cooling fan 460 (exhaust port 470) is not positioned vertically below the mounting hole 420 of the top plate 400. Therefore, even if debris is generated when fixing members (e.g., screws) are screwed into the mounting hole 420 for attachment to the island equipment, it is possible to prevent debris from entering the cooling fan 460 as much as possible, thereby preventing malfunctions caused by debris accumulating inside the cooling fan 460. 【0071】 Furthermore, in this embodiment, as shown in Figure 5, the sub-board unit 440 is installed so that the exhaust port 470 faces diagonally downward. Therefore, even if dust is generated when fixing members (e.g., screws) are screwed into the mounting holes 420 for attachment to the island equipment, it is possible to prevent as much dust as possible from entering the cooling fan 460, thereby preventing malfunctions caused by dust accumulating inside the cooling fan 460. 【0072】 Furthermore, in this embodiment, as shown in Figure 8, the reel relay board unit 490 is positioned vertically below a predetermined space 500 from the exhaust port 470 (cooling fan 460) of the sub-board unit 440 to a predetermined area 480 of the main board case 412. As shown in Figure 9, there is no connector opening 496 in the predetermined area 510 vertically below the predetermined space 500 in the reel relay board case 492. Therefore, dust and debris discharged from the cooling fan 460 can be prevented from entering the reel relay board unit 490 as much as possible, thereby preventing malfunctions caused by debris adhering to the connectors of the reel relay board. 【0073】 Figure 10 is a diagram illustrating the cooling fan installation section 540 of the sub-board case 442 in the gaming machine of this embodiment. 【0074】 In this embodiment, the surface of the sub-board case 442 is provided with a cooling fan mounting section 540 for installing (storing) a cooling fan 460, as shown in Figures 10(A) and 10(B). The cooling fan mounting section 540 is formed to protrude outward and is approximately the same size as the cooling fan 460, allowing the cooling fan 460 to be housed there. An exhaust port 470 is also formed on the surface (bottom surface) of the cooling fan mounting section 540. 【0075】 Furthermore, as shown in Figures 10(A) and 10(B), the surface (bottom surface) of the cooling fan mounting section 540 is provided with two screw receiving sections 542, each having a screw hole. 【0076】 In this embodiment, when installing the cooling fan 460, the cooling fan 460 is placed in the cooling fan mounting section 540 from the inside of the sub-board case 442, screws are screwed into the screw holes provided in the cooling fan 460 from the inside of the sub-board case 442, and then screwed further into the screw receiving section 542 to fix it to the sub-board case 442. As a result, the heads of the screws are positioned on the inside of the sub-board case 442. 【0077】 In this embodiment, the cooling fan 460 is mounted from the inside of the sub-board case 442, making it easier to assemble the cooling fan 460. Furthermore, in this embodiment, the screw heads for securing the cooling fan 460 are located inside the sub-board case 442, preventing accidental removal of the cooling fan 460. 【0078】 1-3. Assembly structure of storage box BX 【0079】 The assembly structure of the storage box BX will be described below with reference to Figures 11 to 13. Figure 11 is a schematic rear view of the storage box BX of the gaming machine of this embodiment, Figure 12 is a schematic rear view of the storage box BX of the gaming machine of this embodiment with the back plate 402 removed, and Figure 13 is a schematic rear view of the storage box BX of the gaming machine of this embodiment. 【0080】 In this embodiment, the storage box BX (enclosure), as shown in Figure 11, comprises a top plate 400, a back plate 402, a bottom plate 404, and left and right side plates 406 and 408, and is made of wood. The back plate 402 is thinner than the top plate 400, the bottom plate 404, and the left and right side plates 406 and 408. 【0081】 In the following explanation, the underside of the top panel 400, the front of the back panel 402, the top surface of the bottom panel 404, the right side of the left side panel 408, and the left side of the right side panel 406, that is, the panel surfaces of the top panel 400, back panel 402, bottom panel 404, and the left and right side panels 406 and 408 that face inward from the enclosure will be referred to as the inner surfaces. The top surface of the top panel 400, the back of the back panel 402, the underside of the bottom panel 404, the left side of the left side panel 408, and the right side of the right side panel 406, that is, the panel surfaces of the top panel 400, back panel 402, bottom panel 404, and the left and right side panels 406 and 408 that face outward from the enclosure will be referred to as the outer surfaces. 【0082】 In this embodiment, as shown in Figure 12, back plate support portions 600, 602, and 604 are formed on the inner surface of the rear ends of the bottom plate 404 and the left and right side plates 406 and 408, respectively, for installing and fixing the back plate 402. The back plate support portion 600 of the left side plate 408 and the back plate support portion 602 of the right side plate 406 have an L-shaped cutout in the cross-sectional shape along line AA in Figure 12, and the back plate support portion 604 of the bottom plate 404 has an L-shaped cutout in the cross-sectional shape along line BB in Figure 12. 【0083】 Furthermore, near the approximate center of the rear end of the top plate 400, as shown in Figure 12, a left back plate support portion 606 and a right back plate support portion 608 are formed for installing and fixing the back plate 402. The left back plate support portion 606 has an L-shaped cutout in the cross-sectional shape along line CC in Figure 12, and the right back plate support portion 608 has an L-shaped cutout in the cross-sectional shape along line BB in Figure 12. Screw holes are also formed approximately in the center of both the left back plate support portion 606 and the right back plate support portion 608. 【0084】 Furthermore, as shown in Figure 11, a left fixing portion 610 and a right fixing portion 612 are formed near the approximate center of the upper part of the back panel 402 for fixing to the top panel 400. The left fixing portion 610 and the right fixing portion 612 are formed as protruding pieces that project upward from the upper part of the back panel 402. Screw holes are also formed approximately in the center of each of the left fixing portion 610 and the right fixing portion 612. 【0085】 In this embodiment, the top plate 400, the bottom plate 404, and the left and right side plates 406 and 408 are assembled and fixed, and the back plate 402 is fixed to this frame. Specifically, the left end of the back plate 402 is aligned with the back plate receiving portion 600 of the left side plate 408 that constitutes the frame, the right end of the back plate 402 is aligned with the back plate receiving portion 602 of the right side plate 406 that constitutes the frame, and the lower end of the back plate 402 is aligned with the back plate receiving portion 604 of the bottom plate 404 that constitutes the frame, thereby installing the back plate 402 to the frame. As a result, the left fixing portion 610 of the back plate 402 overlaps with the left back plate receiving portion 606 of the top plate 400, and the right fixing portion 612 of the back plate 402 overlaps with the right back plate receiving portion 608 of the top plate 400. 【0086】 In this embodiment, the left side plate 408 and the back plate 402, the right side plate 406 and the back plate 402, and the bottom plate 404 and the back plate 402 are fixed together with staples 620 (an example of the first fixing means, first fixing member, first fixing device, and first fastener). Specifically, the staples 620 are driven in from the outer surface to the inner surface of the back plate 402 to fix it. Also, as shown in Figure 11, the back plate 402 is fixed to the back plate receiving portion 600 of the left side plate 408 by driving staples 620 along the left edge of the back plate 402 to fix it, thereby fixing the left side plate 408 and the back plate 402. In this embodiment, the back plate 402 is fixed at multiple locations (for example, 6 locations) at regular intervals along the left end with staples 620. Note that the fixing with staples 620 is not limited to 6 locations; there may be more or fewer locations. 【0087】 As shown in Figure 11, the back plate 402 is fixed to the back plate receiving portion 602 of the right side plate 406 by driving staples 620 along the right edge of the back plate 402, thereby fixing the back plate 402 to the right side plate 406. In this embodiment, the back plate 402 is fixed at multiple locations (for example, 6 locations) at regular intervals along the right edge with staples 620. Note that the fixing with staples 620 is not limited to 6 locations; there may be more or fewer locations. 【0088】 As shown in Figure 11, the back plate 402 is fixed to the back plate receiving portion 604 of the bottom plate 404 by driving staples 620 along the lower edge of the back plate 402, thereby fixing the bottom plate 404 and the back plate 402. In this embodiment, the lower end of the back plate 402 is fixed with staples 620 at multiple locations (for example, 4 locations) at regular intervals. Note that the fixing with staples 620 is not limited to 4 locations; there may be more or fewer locations. 【0089】 In this embodiment, the top plate 400 and the back plate 402 are fixed together with wood screws 622 (an example of a second fixing means, second fixing member, second fixing device, and second fastener). Specifically, the wood screws 622 are screwed into the back plate 402 from the outer surface towards the inner surface. As shown in Figure 11, when a wood screw 622 is screwed into the screw hole of the left fixing part 610 of the back plate 402, the wood screw 622 is screwed into the screw hole of the left back plate receiving part 606 of the top plate 400, and when a wood screw 622 is screwed into the screw hole of the right fixing part 612 of the back plate 402, the wood screw 622 is screwed into the screw hole of the right back plate receiving part 608 of the top plate 400. In this manner, the back panel 402 is fixed to the left back panel support portion 606 of the top plate 400 by screwing wood screws 622 into the screw holes of the left fixing portion 610 of the back panel 402, and the back panel 402 is fixed to the right back panel support portion 608 of the top plate 400 by screwing wood screws 622 into the screw holes of the right fixing portion 612 of the back panel 402, thereby fixing the back panel 402 to the back panel 402. In this embodiment, the upper end of the back panel 402 is fixed at multiple locations (for example, two locations) with wood screws 622. Note that the fixing with wood screws 622 is not limited to two locations (left fixing portion 610, right fixing portion 612), and there may be more or fewer locations. 【0090】 Furthermore, in this embodiment, the staples 620 are cheaper per unit than the wood screws 622, the wood screws 622 have stronger fastening force (strength) than the staples 620, and are easier to remove with a screwdriver (an example of a specified tool) than the staples 620. Also, the wood screws 622 are easier to remove without damaging the area around the fastening point on the outer surface of the back plate 402 than the staples 620. In addition, the staples 620 can be fastened more quickly than the wood screws 622, and once removed, they are more difficult to reuse than the wood screws 622. 【0091】 Thus, in this embodiment, staples 620 are used to fasten the left side panel 408 to the back panel 402, the right side panel 406 to the back panel 402, and the bottom panel 404 to the back panel 402, but wood screws 622 are not used. Similarly, wood screws 622 are used to fasten the top panel 400 to the back panel 402, but staples 620 are not used. Furthermore, fewer wood screws 622 are used than staples 620 in these fastening operations. 【0092】 In this embodiment, as shown in Figure 11, four heat dissipation holes are formed side by side at regular intervals near the top of the back plate 402: a first heat dissipation hole 624 (an example of a heat dissipation hole), a second heat dissipation hole 626 (an example of a heat dissipation hole), a third heat dissipation hole 628 (an example of a heat dissipation hole), and a fourth heat dissipation hole 630 (an example of a heat dissipation hole). These heat dissipation holes are for dissipating (releasing) the heat generated inside the main board unit 410 to the outside, and are formed as elongated openings in the left-right direction. The shape of the heat dissipation holes is not limited to this and can be any shape. The number of heat dissipation holes is also not limited to four; there may be fewer than four or five or more. 【0093】 In this embodiment, these four heat dissipation holes are formed in a position that avoids being directly below the fixing points by the wood screws 622. Specifically, as shown in Figure 11, the right fixing part 612 is formed above the space between the first heat dissipation hole 624 and the second heat dissipation hole 626, and the left fixing part 610 is formed above the space between the third heat dissipation hole 628 and the fourth heat dissipation hole 630. This arrangement ensures that there are no heat dissipation holes directly below the fixing points by the wood screws 622. 【0094】 In this embodiment, as shown in Figure 5, the main circuit board unit 410 is positioned (fixed) on the upper part of the inner surface of the back plate 402, and the four heat dissipation holes, the first heat dissipation hole 624 to the fourth heat dissipation hole 630, are formed in the area where the main circuit board unit 410 is positioned, as shown in Figure 13. 【0095】 Furthermore, in this embodiment, as shown in Figure 13, the shortest straight-line distance S1 from the wood screw 622 to the main circuit board unit 410 is shorter than the shortest straight-line distance S2 from the staple 620 to the main circuit board unit 410. 【0096】 In this embodiment, the left side plate 408 and the top plate 400, and the right side plate 406 and the top plate 400 are fixed together with wood screws. Specifically, as shown by arrow A in Figure 13, the wood screws are screwed into the top plate 400 from the outer side toward the inner side to secure it. The wood screws used to fix the top plate 400 to the left and right side plates 406 and 408 have a larger diameter (stronger fixing force) than the wood screws 622 used to fix the top plate 400 to the back plate 402. As mentioned above, when fixing the gaming machine to the island equipment, as shown by arrow B in Figure 13, screws acting as fixing members (fastening members) are screwed into the top plate 400 from the inner side toward the outer side to secure it to the island equipment. 【0097】 The left side panel 408 and the bottom panel 404, and the right side panel 406 and the bottom panel 404 are also secured with wood screws. The wood screws used to secure the bottom panel 404 to the left and right side panels 406 and 408 are larger in diameter (stronger fastening screws) than the wood screws 622 used to secure the top panel 400 to the back panel 402. 【0098】 As shown in Figure 11, in this embodiment, the left side plate 408 and the back plate 402, the right side plate 406 and the back plate 402, and the bottom plate 404 and the back plate 402 are fixed with staples 620. Since staples 620 are cheaper than wood screws 622, costs can be reduced compared to using wood screws 622 for these fasteners. In this embodiment, the top plate 400 and the back plate 402 are fixed with wood screws 622. Since wood screws 622 have a stronger fixing force than staples 620, the strength of the top plate 400 can be ensured. In particular, in this embodiment, sufficient strength can be ensured to withstand the load on the top plate 400 caused by the work of installing the gaming machine on the island equipment of the gaming hall. This allows for cost reduction while ensuring strength. 【0099】 Furthermore, in this embodiment, the left side panel 408 and the back panel 402, the right side panel 406 and the back panel 402, and the bottom panel 404 and the back panel 402 are fixed together with staples 620, so the left side panel 408, the right side panel 406, and the bottom panel 404 can be reused. 【0100】 Furthermore, in this embodiment, the top plate 400 and the back plate 402 are fixed with wood screws 622. Since wood screws 622 are easier to remove than staples 620, compared to using staples 620 to fix the top plate 400 and the back plate 402, it is possible to easily remove the top plate 400, which is not intended for reuse. 【0101】 In this embodiment, the main board unit 410, which includes a main board 414 equipped with a setting change switch and a setting change button, and a main board case 412 rotatable between a first position and a second position, is fixed to the upper part of the inner surface of the back plate 402. The top plate 400 and the back plate 402 are fixed with wood screws 622, which have stronger fixing force than staples 620. As a result, sufficient strength can be ensured to withstand the load on the back plate 402 caused by inspection work to inspect the back of the main board 414 (such as releasing the rotation restriction of the main board case 412 in the first position or returning the main board case 412 from the second position to the first position) and operation of the setting change switch or setting change button. 【0102】 Furthermore, in this embodiment, as shown in Figure 13, the shortest straight-line distance S1 from the wood screw 622 to the main circuit board unit 410 is shorter than the shortest straight-line distance S2 from the staple 620 to the main circuit board unit 410. Therefore, when an external force is applied to the main circuit board unit 410 toward the back plate 402, the presence of the wood screw 622, which has strong fixing force, can suitably maintain the connection between the back plate 402 and the other boards (top plate 400, left and right side plates 406, 408, bottom plate 404) that are fixed to the back plate 402. 【0103】 Furthermore, in this embodiment, the number of wood screws 622, which have a higher unit price than staples 620, used to fasten the left side panel 408 to the back panel 402, the right side panel 406 to the back panel 402, the bottom panel 404 to the back panel 402, and the top panel 400 to the back panel 402 is less than that of staples 620, thus reducing costs. 【0104】 Furthermore, in this embodiment, the tacker pins 620 used to fasten the left side panel 408 to the back panel 402, the right side panel 406 to the back panel 402, and the bottom panel 404 to the back panel 402, as well as the wood screws 622 used to fasten the top panel 400 to the back panel 402, are performed on the outer surface of the back panel 402, thereby improving the work efficiency of assembling the storage box BX. 【0105】 Furthermore, in this embodiment, as shown in Figure 11, the four heat dissipation holes, the first heat dissipation holes 624 to the fourth heat dissipation holes 630, are positioned to avoid being directly below the fixing points by the wood screws 622, thereby ensuring the strength of the back plate 402. 【0106】 In this embodiment, the left side panel 408 and the top panel 400, the left side panel 408 and the bottom panel 404, the right side panel 406 and the top panel 400, and the right side panel 406 and the bottom panel 404 may be fixed with staples 620, or they may be fixed by means other than staples 620 or wood screws 622. 【0107】 In this embodiment, adhesive tape or glue may be used in conjunction with fastening means such as staples 620 or wood screws 622 to assemble and fix the top plate 400, back plate 402, bottom plate 404, and left and right side plates 406, 408. 【0108】 The configuration and structure of this embodiment can be appropriately combined with other embodiments and modifications. 【0109】 2. Second Embodiment In this embodiment, detailed explanations of configurations and control methods common to the first embodiment will be omitted, and the main differences will be described. In this embodiment, the structure of the sub-board unit 440 differs from that of the first embodiment, and the sub-board unit 440 of this embodiment will be described below with reference to Figures 14 to 19. Figure 14 is a perspective view showing a schematic of the sub-board unit 440 of the gaming machine of this embodiment, Figure 15 is a front view showing a schematic of the sub-board unit 440 of the gaming machine of this embodiment, Figure 16 is a front view of the sub-board 444 in the gaming machine of this embodiment, and is a partially enlarged view (schematic diagram) illustrating the development connector arrangement area 640 of the sub-board 444, and Figure 17 is a perspective view of the case cover 672 of the sub-board case 442 in the gaming machine of this embodiment, and is a part illustrating the protruding portion 670 of the case cover 672. Figures 14 to 16 and 18 to 19 omit the illustration of electronic components such as the CPU, ROM, and RAM in the sub-board 444. 【0110】 As shown in Figure 14, the sub-board case 442 of this embodiment is composed of a case body 674 and a case lid 672, and the case body 674 and the case lid 672 are combined to form a box-shaped sub-board case 442. The sub-board 444 is housed inside the sub-board case 442 with the case lid 672 facing the front surface of the sub-board 444 and the case body 674 facing the back surface of the sub-board 444. 【0111】 Furthermore, the sub-board 444 of this embodiment is provided with an unmounted component placement area (an example of a predetermined area) that indicates the placement of components that are not mounted during mass production (components not mounted during mass production). 【0112】 Components not mounted during mass production include development components used only during development and not mounted during mass production (e.g., development connectors, development ICs, development passive elements, etc.), function expansion components that are mounted when additional functions (specifications) are decided for later models and are not mounted during mass production (current models) (e.g., function expansion connectors, function expansion ICs, function expansion passive elements, etc.), and test components used in prescribed tests conducted to provide gaming machines to the market and not mounted during mass production (e.g., test connectors, test ICs, test passive elements, etc.). Mass production refers to the time when a large quantity of a product is produced for the market. In other words, gaming machines distributed in the market generally do not have components (components not mounted during mass production) mounted in the areas designated for components not mounted during mass production. 【0113】 In this embodiment, the unmounted component placement area is defined as the area occupied by the unmounted component when it is placed in a predetermined position, as well as the area occupied by the markings related to the unmounted component. Here, the mounting area includes the area occupied by mounting parts (lands, through-holes, pads, etc.) for attaching (soldering) the unmounted component. Multiple unmounted component placement areas may be provided, or multiple unmounted components may be mounted in a single unmounted component placement area. 【0114】 In this embodiment, a development connector placement area 640 is provided as an unmounted component placement area, indicating the placement of development connectors (an example of electronic components not mounted during mass production), which are components not mounted during mass production (development components). As shown in Figure 15, the development connector placement area 640 is provided on the surface of the sub-board 444, near the upper right corner in Figure 15. The development connector is a vertical mating connector (a connector in which the insertion direction intersects the surface of the sub-board 444). 【0115】 Specifically, as shown in Figure 16, the development connector placement area 640 is provided with a mounting section 676 composed of multiple pads (approximately rectangular copper foil portions). In this embodiment, the development connector is a surface mount component that is mounted by soldering to the mounting surface, and is mounted using surface mount technology (SMT). In this embodiment, the multiple pads (copper foil portions) of the mounting section 676 are arranged horizontally in two rows, upper and lower, corresponding to each terminal (each pin) of the development connector. More specifically, as shown in Figure 16, 17 pads (copper foil portions) are arranged horizontally in the upper row, and 15 pads (copper foil portions) are arranged horizontally in the lower row. 【0116】 Furthermore, in the development connector placement area 640, as shown in Figure 16, the string "CN9," which is an identification mark (development connector identification mark 678) indicating a development connector, is displayed to the right of the mounting section 676 in Figure 16, as an indication of components not mounted during mass production. 【0117】 Furthermore, as shown in Figure 16, the development connector placement area 640 displays terminal identification markings to allow identification of each terminal of the development connector, as an indication of components not mounted during mass production. Specifically, the terminal identification markings include the number "1" and a triangle symbol, which represent the identification marking for pin 1 (first terminal identification marking 680), displayed near the pin 1 pad (copper foil portion); the number "2" representing the identification marking for pin 2 (second terminal identification marking 682), displayed near the pin 2 pad (copper foil portion); the number "15" representing the identification marking for pin 15 (third terminal identification marking 684), displayed near the pin 15 pad (copper foil portion); and the number "16" representing the identification marking for pin 16 (fourth terminal identification marking 686), displayed near the pin 16 pad (copper foil portion). 【0118】 In this embodiment, the development connector placement area 640 includes the mounting section 676 composed of multiple pads (copper foil portions), the string "CN9" which is the development connector identification mark 678, the number "1" and the triangle symbol which are the first terminal identification mark 680, the number "2" which is the second terminal identification mark 682, the number "15" which is the third terminal identification mark 684, and the number "16" which is the fourth terminal identification mark 686. The development connector placement area 640 may not include some or all of the first to fourth terminal identification marks. 【0119】 Furthermore, the sub-board 444 of this embodiment has multiple connectors 450 provided in positions different from the development connector placement area 640, and these connectors 450 are components that will be mounted during mass production (mass-production mounted components). 【0120】 Specifically, the sub-board 444 has six connectors 450 arranged vertically along the left edge in Figure 15: the first connector 642, the second connector 644, the third connector 646, the fourth connector 648, the fifth connector 650, and the sixth connector 652. Three more connectors 450, the seventh connector 654, the eighth connector 656, and the ninth connector 658, are arranged horizontally along the top edge near the upper left of Figure 15. These connectors are vertically mating connectors. 【0121】 Furthermore, as shown in Figures 14 and 15, the front surface of the case cover 672 is provided with openings (connector openings) at positions facing each of the nine connectors 450, from the first connector 642 to the ninth connector 658, so that each of the first connector 642 to the ninth connector 658 is exposed from the sub-board case 442. 【0122】 Furthermore, as shown in Figures 14 and 15, the front surface of the case lid 672 in this embodiment has a projection 670 that protrudes toward the development connector placement area 640 of the sub-board 444 at a position facing the development connector placement area 640. As shown in Figure 17, the projection 670 is formed in a plate shape on the inner (back) side of the front surface of the case lid 672. 【0123】 In this embodiment, as shown in Figure 17, the protruding portion 670 is formed such that the facing portion 688 (the tip of the protruding portion 670), which is the surface of the protruding portion 670 facing the development connector placement area 640, fits within the development connector placement area 640. Specifically, the facing portion 688 is formed in a rectangular shape, and as shown in Figures 18(A) and 18(B), its longitudinal dimension is less than or equal to the dimension S1 (the dimension from the outer end of one pad to the outer end of the other pad) in the development connector placement area 640 of the sub-board 444, from the right end of the 2-pin pad (copper foil portion) to the left end of the 16-pin pad (copper foil portion). The transverse dimension is less than or equal to the dimension S2 (the transverse dimension of the development connector body) in the development connector placement area 640 of the sub-board 444, from the upper end of the 1-pin pad (copper foil portion) to the lower end of the upper pad (copper foil portion) located opposite the 1-pin pad (copper foil portion). In this embodiment in particular, the longitudinal dimension of the facing portion 688 is approximately the same as dimension S1. As a result, when the sub-board 444 is housed in the sub-board case 442, as shown in Figures 18(A) and 18(B), the left end of the facing portion 688 faces the 16-pin pad (copper foil portion), and the right end of the facing portion 688 faces the 2-pin pad (copper foil portion). 【0124】 In other words, in this embodiment, the opposite portion 688 is formed to be smaller than the mounting portion 676 in the development connector placement area 640 of the sub-board 444. In particular, in this embodiment, the opposite portion 688 is formed to be smaller than the outer dimensions of the insertion opening (insertion opening) of the development connector. Thus, in this embodiment, the protruding portion 670 is formed to be sized to fit within the development connector placement area 640 when the sub-board 444 is housed in the sub-board case 442. 【0125】 In this embodiment, the protruding portion 670 is formed such that the distance between the opposite side 688 of the protruding portion 670 and the surface of the sub-board 444 is shorter than the height of each of the first connectors 642 to the ninth connector 658 of the sub-board 444. In this embodiment, the heights of the connectors from the first connector 642 to the ninth connector 658 increase in the order of "first connector 642 = third connector 646 < second connector 644 = fourth connector 648 = fifth connector 650 < sixth connector 652 < seventh connector 654 = eighth connector 656 < ninth connector 658". As shown in Figure 19, the distance H1 between the opposite side 688 of the protruding portion 670 of the case lid 672 and the surface of the sub-board 444 is shorter than the heights of the first connector 642 and the third connector 646, which have the lowest height H among the first connectors 642 to the ninth connector 658. Note that in Figure 19, the illustration of connectors 654 to 658 (connectors 7 to 9) is omitted. 【0126】 Furthermore, in this embodiment, no opening is formed on the front surface of the case lid 672 at a position facing the development connector placement area 640 of the sub-board 444. 【0127】 In addition, in the sub-board unit 440 of this embodiment, the cooling fan 460 is located near the middle right of Figure 15. 【0128】 In this embodiment, the sub-board 444 is provided with a development connector placement area 640 indicating the placement of development connectors, which are components not mounted during mass production (development components). A protrusion 670 that projects toward the development connector placement area 640 is provided on the case lid 672 at a position facing the development connector placement area 640. Therefore, when attempting to assemble the development sub-board with the development connector mounted on it and the sub-board case 442, which is a board case for mass production, the protrusion 670 of the case lid 672 interferes with the development connector, preventing them from being assembled correctly. This prevents accidental assembly of the development sub-board and the sub-board case 442 for mass production. In particular, in the development of a gaming machine like the one in this embodiment, it is necessary to prepare a test gaming machine to be used for predetermined tests before starting mass production. At the stage of preparing such a test gaming machine, development sub-boards and mass-production sub-boards 444 may get mixed together, which can lead to misassembly. However, according to this embodiment, development sub-boards and mass-production sub-board cases 442 can be prevented from being assembled together, thus preventing misassembly. 【0129】 Furthermore, in this embodiment, the protruding portion 670 of the case cover 672 is formed to a size that fits within the development connector placement area 640 of the sub-board 444, and is positioned within the development connector placement area 640. As a result, the protruding portion 670 of the case cover 672 does not interfere with the area around the development connector placement area 640 of the sub-board 444. This allows electronic components and the like to be placed around the development connector placement area 640 of the sub-board 444, thereby increasing the design flexibility of the sub-board 444. 【0130】 Furthermore, in this embodiment, the amount of protrusion of the protrusion 670 is formed such that the distance H1 between the opposite side 688 of the protrusion 670 and the surface of the sub-board 444 is shorter than any of the heights of the first connector 642 to the ninth connector 658 of the sub-board 444. As a result, the protrusion 670 of the case cover 672 will not interfere with the development connector of the development sub-board and will not be able to assemble, regardless of the height of the development connector. This prevents the accidental assembly of the development sub-board and the mass-production sub-board case 442. 【0131】 In this embodiment, the example described was that an area for unmounted components is provided on the sub-board 444. However, an area for unmounted components may also be provided on other boards such as the main board 414 (an example of a board), a reel relay board (an example of a board), or a centralized terminal board (an example of a board), and a protrusion may be provided on the board case covering the board that faces the area for unmounted components, so as to project toward the area for unmounted components. 【0132】 In this embodiment, the example described was that a development connector placement area 640 indicating the placement of a development connector was provided as an area for placing unmounted components. However, an unmounted component placement area (an example of a predetermined area) may also be provided to indicate the placement of components that are not mounted during mass production, other than development connectors, such as development ICs (an example of electronic components that are not mounted during mass production) and development passive elements (an example of electronic components that are not mounted during mass production). 【0133】 In this embodiment, the example given for the opposite portion 688 of the protruding portion 670 is that the longitudinal dimension of the opposite portion 688 is less than or equal to the dimension S1, which is the distance from the right end of the 2-pin pad (copper foil portion) to the left end of the 16-pin pad (copper foil portion) in the development connector placement area 640 of the sub-board 444, and the short-side dimension is less than or equal to the dimension S2, which is the distance from the upper end of the 1-pin pad (copper foil portion) to the lower end of the upper pad (copper foil portion) located opposite the 1-pin pad (copper foil portion) in the development connector placement area 640 of the sub-board 444. However, the opposite portion 688 may have a longitudinal dimension shorter than dimension S1 and a short-side dimension shorter than dimension S2. That is, the opposite portion 688 may have a longitudinal dimension less than or equal to the longitudinal dimension S1 of the mounting portion 676 or shorter than dimension S1, and a short-side dimension less than or equal to the short-side dimension S2 of the mounting portion 676 or shorter than dimension S2. 【0134】 In this embodiment, the case in which the vertically mating connectors of the first connector 642 to the ninth connector 658 are provided at a position different from the development connector placement area 640 of the sub-board 444 was described as an example. However, horizontally mating connectors (connectors whose insertion direction is substantially parallel to the surface of the sub-board 444 (a different direction from that of the development connectors)) may also be provided. In this case, the protrusion 670 of the case cover 672 may be formed such that the distance between the opposite side 688 of the protrusion 670 and the surface of the sub-board 444 is shorter or longer than the height of the horizontally mating connector on the sub-board 444. 【0135】 In this embodiment, the example of forming the protruding portion 670 of the case lid 672 of the sub-board case 442 in a plate shape was used for explanation. However, the shape of the protruding portion 670 is not limited to a plate shape. It can be formed into any shape, such as a column shape, as long as the opposite portion 688 is sized to fit within the development connector placement area 640 of the sub-board 444. Similarly, the opposite portion 688 is not limited to a rectangular shape. It can be formed into any shape as long as it is sized to fit within the development connector placement area 640 of the sub-board 444. 【0136】 In this embodiment, the example described was that the protruding portion 670 of the case lid 672 is formed to fit within the development connector placement area 640 of the sub-board 444. However, the opposite portion 688 of the protruding portion 670 may be formed to be larger than the development connector placement area 640 of the sub-board 444. 【0137】 In this embodiment, the example described was that the amount of protrusion of the protrusion 670 is formed such that the distance H1 between the opposite side 688 of the protrusion 670 and the surface of the sub-board 444 is shorter than any of the heights of the first connectors 642 to the ninth connectors 658 of the sub-board 444. However, as long as the size allows for interference with the development connector, the amount of protrusion of the protrusion 670 may be formed such that the distance H1 between the opposite side 688 of the protrusion 670 and the surface of the sub-board 444 is longer than any of the heights of the first connectors 642 to the ninth connectors 658 of the sub-board 444. 【0138】 The configuration and structure of this embodiment can be appropriately combined with other embodiments and modifications. 【0139】 3. Third Embodiment In this embodiment, detailed explanations of configurations and control methods common to the first embodiment will be omitted, and the main differences will be described. In this embodiment, the positional relationship between the centralized terminal board unit 690 and the through-hole 712 through which the cable for connecting external devices is inserted differs from that of the first embodiment. The positional relationship between the centralized terminal board unit 690 and the through-hole 712 in this embodiment will be described below with reference to Figures 20 to 23. Figure 20 is a front view (schematic diagram) showing the internal configuration of the gaming machine of this embodiment, Figure 21 is an enlarged view (schematic diagram) of the main part illustrating the centralized terminal board unit 690 in the gaming machine of this embodiment, Figure 22 is a front view (schematic diagram) showing the internal configuration of the gaming machine of this embodiment, and is an explanatory diagram illustrating the positional relationship between the centralized terminal board unit 690 and the through-hole 712, and Figure 23 is a front view (schematic diagram) showing the internal configuration of a modified gaming machine of this embodiment, and is an explanatory diagram illustrating the positional relationship between the centralized terminal board unit 690 and the through-hole 712. Note that in Figures 20 and 22-23, the power supply unit 305 and the hopper unit 320, which are located at the bottom of the reel unit 310 inside the storage box BX, are not shown. Also, in Figures 20-23, the CPU, ROM, RAM, and other electronic components on the main board 414 are not shown. 【0140】 As shown in Figure 20, the centralized terminal board unit 690 of this embodiment is attached to the inner surface of the right side panel 406 of the storage box BX, similar to the first embodiment described above. The centralized terminal board unit 690 also comprises a centralized terminal board 692 and a centralized terminal board case 694, as shown in Figure 21. The centralized terminal board case 694 is composed of a case body 696 and a case lid 698, and the case body 696 and the case lid 698 are combined to form a box-shaped centralized terminal board case 694. The centralized terminal board 692 is housed inside the centralized terminal board case 694 with the case lid 698 facing the surface of the centralized terminal board 692 and the case body 696 facing the back surface of the centralized terminal board 692. The centralized terminal board unit 690 is attached so that the surface of the centralized terminal board 692 faces outwards (towards the left side panel 408). 【0141】 Furthermore, as shown in Figure 21, the surface of the centralized terminal board 692 in this embodiment is provided with multiple connectors, including a main board connection connector 700 used for connecting to the main board 414, and an external device connection connector 702 (an example of a connector) used for connecting to external devices. These connectors are vertical mating connectors. As a result, the insertion opening 714 (insertion opening) of the main board connection connector 700 and the insertion opening 716 (insertion opening) of the external device connection connector 702 face the left side plate 408. Note that in Figures 20 to 23, various harnesses and cables, such as cables used for connecting the main board 414 and the centralized terminal board 692 and cables for connecting external devices, are not shown. 【0142】 Furthermore, as shown in Figure 21, the front surface of the case cover 698 of the centralized terminal board case 694 in this embodiment is provided with openings (connector openings) at positions facing the main board connection connector 700 and the external device connection connector 702, respectively, so that the main board connection connector 700 and the external device connection connector 702 are exposed from the centralized terminal board case 694. 【0143】 Furthermore, as shown in Figure 21, the centralized terminal board case 694 of this embodiment is provided with four fixing parts for fixing the case body 696 and the case lid 698: a first case lid fixing part 704, a second case lid fixing part 706, a third case lid fixing part 708, and a fourth case lid fixing part 710. Each fixing part is composed of the case body 696 and the case lid 698. The first case lid fixing part 704 and the fourth case lid fixing part 710 are protruding parts that project in the longitudinal direction of the centralized terminal board case 694 and are formed as protruding parts that project in opposite directions to each other, while the second case lid fixing part 706 and the third case lid fixing part 708 are protruding parts that project in the short direction of the centralized terminal board case 694 and are formed as protruding parts that project in the same direction. Each fixing part also has a screw hole, and the case body 696 and the case lid 698 are fixed by screwing a screw into the screw hole. 【0144】 In this embodiment, the through-hole 712 for inserting an external device connection cable (an example of a cable) is formed near the upper right end of the back plate 402 of the storage box BX, as shown in Figure 20. The through-hole 712 is formed in a roughly rectangular shape. However, the shape of the through-hole 712 is not limited to this and can be any shape (for example, a circular shape). 【0145】 Furthermore, the main board case 412 of the main board unit 410 in this embodiment is formed in a different shape from that of the first embodiment. In particular, in this embodiment, as shown in Figure 20, the right corner of the main board case 412 is cut out so as not to overlap with the through hole 712 of the back plate 402. This prevents the through hole 712 from being blocked. 【0146】 In this embodiment, the centralized terminal board unit 690 is positioned below the through-hole 712 of the back plate 402, such that the insertion opening 716 (insertion opening) for the external device connection connector 702 is within the width of the through-hole 712 in the left-right direction. Specifically, as shown in Figure 22, the centralized terminal board unit 690 is positioned on the right side plate 406 of the storage box BX, below and in front of the through-hole 712 of the back plate 402. Here, the dashed lines a and b in Figure 22 are dashed lines drawn vertically (vertically downward and directly below) from the left and right ends of the through-hole 712, respectively. In this embodiment, the connector 702 for connecting external devices is mounted on the centralized terminal board 692 such that its insertion opening 716 (insertion port) faces the left side plate 408, as shown in Figure 21. The centralized terminal board unit 690 is positioned such that the insertion opening 716 (insertion port) of the connector 702 for connecting external devices is located between dashed lines a and b in Figure 22. 【0147】 In this embodiment, the centralized terminal board unit 690 is positioned such that the insertion opening 714 (insertion opening) for the main board connection connector 700 is also within the width range of the through hole 712. 【0148】 In this embodiment, when installing the gaming machine into the island equipment of the gaming hall, a connection operation is performed in which an external device connection cable is inserted from outside the gaming machine into the through hole 712 of the back plate 402 and then inserted into the external device connection connector 702 of the central terminal board 692. 【0149】 As described above, in this embodiment, the centralized terminal board unit 690 is positioned below the through-hole 712 of the back plate 402, making it easy to see both the centralized terminal board unit 690 and the through-hole 712 simultaneously, and making it easier to connect the cable for connecting an external device to the external device connection connector 702 of the centralized terminal board 692. Furthermore, in this embodiment, the centralized terminal board unit 690 is positioned below and in front of the through-hole 712, such that the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width of the through-hole 712, so that when the external device connection cable is inserted into the storage box BX from the through-hole 712, the cable is positioned close to the external device connection connector 702, making it easier to connect the cable. 【0150】 In this embodiment, the centralized terminal board unit 690 was described as being positioned below the through-hole 712 of the back plate 402, such that the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width of the through-hole 712. However, the centralized terminal board unit 690 only needs to be positioned such that at least a portion of the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width of the through-hole 712; the entire insertion opening 716 (insertion opening) of the external device connection connector 702 does not need to be within the width of the through-hole 712. Furthermore, the centralized terminal board unit 690 may be positioned such that at least a portion of the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width of the through-hole 712, but a portion of the main body forming the external device connection connector 702 is outside the width of the through-hole 712. Furthermore, the centralized terminal board unit 690 may be positioned such that at least a portion of the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width range of the through hole 712, but part or all of the insertion opening 714 (insertion opening) of the main board connection connector 700 is outside the width range of the through hole 712. Also, the centralized terminal board unit 690 may be positioned such that at least a portion of the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width range of the through hole 712, but part of the main body forming the main board connection connector 700 is outside the width range of the through hole 712. Furthermore, the centralized terminal board unit 690 may be positioned such that at least a portion of the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width range of the through hole 712, but part or all of the centralized terminal board case 694 or centralized terminal board 692 is outside the width range of the through hole 712. 【0151】 In this embodiment, the case in which the centralized terminal board unit 690 is placed on the upper side inside the storage box BX was described as an example, but the centralized terminal board unit 690 may also be placed on the lower side inside the storage box BX. For example, as shown in Figure 23, the centralized terminal board unit 690 may be placed near the lower right end of the back plate 402 of the storage box BX, and a through hole 712 may be formed above the centralized terminal board unit 690. In this case as well, the centralized terminal board unit 690 may be placed below the through hole 712 of the back plate 402, at a position where the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width of the through hole 712. Specifically, the centralized terminal board unit 690 may be placed so that the insertion opening 716 (insertion opening) of the external device connection connector 702 is located between dashed lines a and b in Figure 23. Even in this way, the same effects and advantages as in the above embodiment can be achieved, and the cable connection work can be made easier. In this case as well, the centralized terminal board unit 690 only needs to be positioned such that at least a portion of the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width range of the through hole 712, and it is not necessary for the entire insertion opening 716 (insertion opening) of the external device connection connector 702 to be within the width range of the through hole 712. Alternatively, the centralized terminal board unit 690 may be positioned such that at least a portion of the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width range of the through hole 712, but a portion of the main body forming the external device connection connector 702 is outside the width range of the through hole 712. 【0152】 In this case, as shown in Figure 23, the centralized terminal board unit 690 is positioned so that the insertion opening 714 (insertion opening) of the main board connection connector 700 is outside the width range of the through hole 712. However, at least a portion of the insertion opening 716 (insertion opening) of the external device connection connector 702 may be positioned so that it is within the width range of the through hole 712, and part or all of the insertion opening 714 (insertion opening) of the main board connection connector 700 is within the width range of the through hole 712. Alternatively, the centralized terminal board unit 690 may be positioned so that at least a portion of the insertion opening 716 (insertion opening) of the external device connection connector 702 is within the width range of the through hole 712, and part or all of the main body forming the main board connection connector 700 is within the width range of the through hole 712. 【0153】 In this case, as shown in Figure 23, the centralized terminal board unit 690 is positioned such that a part of the centralized terminal board case 694 (for example, the first case lid fixing part 704 or the second case lid fixing part 706) is outside the width range of the through hole 712. However, at least a part of the insertion opening 716 (insertion opening) of the external device connection connector 702 may be positioned so that it is within the width range of the through hole 712, and part or all of the centralized terminal board case 694 is within the width range of the through hole 712. Alternatively, the centralized terminal board unit 690 may be positioned such that at least a portion of the insertion opening 716 (insertion opening) for the external device connection connector 702 is within the width range of the through hole 712, while the four fixing parts of the centralized terminal board case 694 (first case lid fixing part 704, second case lid fixing part 706, third case lid fixing part 708, and fourth case lid fixing part 710) are outside the width range of the through hole 712. Alternatively, the centralized terminal board unit 690 may be positioned such that at least a portion of the insertion opening 716 (insertion opening) for the external device connection connector 702 is within the width range of the through hole 712, while part or all of the centralized terminal board 692 is outside the width range of the through hole 712. 【0154】 In this embodiment, the example of placing the centralized terminal board unit 690 below the through-hole 712 of the back plate 402 was described, but it is not limited to placing the centralized terminal board unit 690 below the through-hole 712 of the back plate 402. For example, the centralized terminal board unit 690 may be placed to the side or above the through-hole 712 of the back plate 402. 【0155】 In this embodiment, the example described was one in which a through-hole 712 for inserting an external device connection cable is formed in the back plate 402. However, it does not have to be the back plate 402 as long as it is near the centralized terminal board unit 690; for example, it may be formed in the right side plate 406. 【0156】 Furthermore, although this embodiment has described the application of the present invention to a slot machine that uses physical tokens (game value) for gameplay, the present invention may also be applied to a smart pachislo (registered trademark), which is a game machine that uses electronic tokens (game value), which are electronic information, as the game medium for gameplay, instead of using physical tokens. 【0157】 Smart pachislo includes a medal count control board that controls (manages) the number of electronic medals (number of game medals), and a game ball dispensing device connection terminal board (an example of a connection terminal board) that connects the smart pachislo to an external device, a medal dispensing machine (not shown). The medal count control board is connected to the main board 414 in a bidirectional manner and is connected to the medal dispensing machine in a bidirectional manner via the game ball dispensing device connection terminal board. It stores the electronic medals, which are electronic information lent from the medal dispensing machine, in a predetermined memory area and can perform counting processing to transfer some or all of the stored electronic medals to the medal dispensing machine. The game ball dispensing device connection terminal board is connected to the medal count control board and the medal dispensing machine in a bidirectional manner and receives signals related to the lending of electronic medals, transmits the results of the lending of electronic medals, transmits signals related to the counting of electronic medals, and transmits various information of the game machine (transmits signals to the outside). 【0158】 The main board 414 then bets electronic medals stored in a predetermined memory area of ​​the medal count control board by operating the bet button B0, and adds the medals dispensed according to the result of the game to the electronic medals stored in the predetermined memory area, thereby providing electronic medals. For this reason, a medal input slot MI, hopper unit 320, etc., are not required in a smart pachislo. In such a smart pachislo, a game ball dispensing device connection terminal board unit (an example of a connection terminal board unit) comprising a game ball dispensing device connection terminal board and a game ball dispensing device connection terminal board case that covers (houses) the game ball dispensing device connection terminal board can be implemented in place of the central terminal board unit 690. 【0159】 In this case, the game ball dispensing device connection terminal board unit may have the same structure as the centralized terminal board unit 690 in the above embodiment, and the game ball dispensing device connection terminal board unit may be positioned below the through hole 712 of the back plate 402, such that the insertion opening (insertion opening) for the external device connection connector mounted on the game ball dispensing device connection terminal board is within the width of the through hole 712, as in the above embodiment (as in the example shown in Figures 22 and 23). 【0160】 The configuration and structure of this embodiment can be appropriately combined with other embodiments and modifications. 【0161】 4. Variations The present invention is not limited to the embodiments described above, and various modifications are possible. These modifications are introduced below. The embodiments described above, as well as the various methods described below as modifications, can be appropriately combined and adopted as control methods to realize the present invention. 【0162】 In the above embodiment, the example described was one in which the lower end of the sub-board unit 440 is located in front of the upper end, that is, the exhaust port 470 is positioned diagonally downward. However, for example, the upper end of the sub-board unit 440 may be located in front of the lower end. That is, the sub-board unit 440 may be positioned so that the exhaust port 470 is positioned diagonally upward. Even in this case, since the cooling fan 460 (exhaust port 470) is positioned at a location different from the vertically downward direction of the mounting hole 420 of the top plate 400, even if debris is generated when fixing members (e.g., screws) are screwed into the mounting hole 420 for attachment to the island equipment, it is possible to prevent as much debris as possible from entering the cooling fan 460, thereby preventing malfunctions caused by debris accumulating inside the cooling fan 460 as much as possible. Alternatively, for example, the sub-board unit 440 may be positioned so as not to be tilted in the vertical direction. 【0163】 Furthermore, although the above embodiment described an example in which a cooling fan 460 is mounted on the sub-board unit 440, when mounting the cooling fan 460, a roof portion 520 may be provided above the cooling fan 460, as shown in Figure 24. The roof portion 520 protrudes outward and is integrally formed with the sub-board case 442, but it may be a separate part from the sub-board case 442. It is also desirable that the length of the roof portion 520 is at least greater than the thickness of the cooling fan 460. In this way, even if dust is generated when fixing members (e.g., screws) are screwed into the mounting holes 420 for attachment to the island equipment, it is possible to prevent as much dust as possible from entering the cooling fan 460, thereby preventing malfunctions caused by dust adhering to the inside of the cooling fan 460 as much as possible. In this example, the surface of the cooling fan 460 is not covered by the sub-board case 442, but is covered with a dust cover 530, and even in this way, it is possible to prevent as much dust as possible from entering the cooling fan 460, thereby preventing malfunctions caused by dust adhering to the inside of the cooling fan 460 as much as possible. 【0164】 In the above embodiment, the cooling fan 460 was described as being housed inside the sub-board case 442, but the cooling fan 460 may also be provided outside the sub-board case 442, or the cooling fan 460 may be provided inside the sub-board case 442 while a part of the cooling fan 460 is exposed to the outside. 【0165】 Furthermore, in the above embodiment, the predetermined region 480 was described as the region in the main board case 412 that faces the exhaust port 470 (cooling fan 460) in the horizontal direction. However, as shown in Figure 25, the predetermined region 480 may also be the region that faces the cooling fan 460 in the air discharge direction (airflow direction) of the cooling fan 460. 【0166】 Furthermore, in the above embodiment, the case in which the cooling fan 460 (exhaust port 470) is not positioned vertically below the mounting hole 420 of the top plate 400 when the front door FD is closed was described as an example. However, the cooling fan 460 (exhaust port 470) may be positioned vertically below the mounting hole 420 of the top plate 400. In this case, it is desirable to install the sub-board unit 440 so that the exhaust port 470 faces diagonally downward. 【0167】 Furthermore, in the above embodiment, the case in which the reel relay board unit 490 is placed vertically below the predetermined space 500 from the exhaust port 470 (cooling fan 460) of the sub-board unit 440 to a predetermined area 480 of the main board case 412 was described as an example. However, as shown in Figure 26, for example, the reel relay board unit 490 may not be placed vertically below the predetermined space 500, but rather at a different location. In other words, the reel relay board unit 490 may not be present vertically below the predetermined space 500. 【0168】 Furthermore, although the above embodiment described an example in which the connector opening 496 is not located in the predetermined area 510 of the reel relay board case 492, the connector opening 496 may be located in the predetermined area 510 of the reel relay board case 492. 【0169】 Furthermore, although the above embodiment described an example in which the main board unit 410 is provided on the back panel 402 of the storage box BX, it can be placed anywhere inside the storage box BX. For example, the main board unit 410 may be provided on either the left or right side panels 406 or 408 of the storage box BX. In this way, air cannot be discharged from the exhaust port 470 of the sub-board unit 440 toward the main board unit 410, so that dust and other debris discharged from the cooling fan 460 does not enter the main board case 412 as much as possible, and malfunctions caused by dust adhering to the electronic components and connectors 430 of the main board 414 can be prevented as much as possible. 【0170】 In the above embodiment, the case in which the sub-board unit 440 is provided on the back surface of the front door FD was described as an example, but for example, the sub-board unit 440 may be provided inside the storage box BX. Also, for example, when a liquid crystal display is installed, the sub-board unit 440 may be provided on the back surface of the liquid crystal display. 【0171】 Furthermore, although the above embodiment was described using the example of mounting one cooling fan 460 on the sub-board unit 440, multiple (for example, two) cooling fans 460 may be mounted on the sub-board unit 440. In this case, it is desirable that the main board case 412 not place a connector opening 416 in any area (predetermined area 480) facing each of the multiple exhaust ports 470 (multiple cooling fans 460). However, doing so may hinder a suitable board design (wiring pattern design). For this reason, the main board case 412 may not place a connector opening 416 in the area (predetermined area 480) facing at least some (for example, one) of the multiple exhaust ports 470 (multiple cooling fans 460), and may place a connector opening 416 in the area (predetermined area 480) facing the other exhaust ports 470 (multiple cooling fans 470). 【0172】 In this case, it is desirable not to place any of the multiple (e.g., two) cooling fans 460 (multiple exhaust ports 470) vertically below the mounting holes 420 of the top plate 400. However, doing so may hinder suitable circuit board design (wiring pattern design). Therefore, in the sub-board unit 440, at least some (e.g., one) of the multiple (e.g., two) cooling fans 460 (multiple exhaust ports 470) may not be placed vertically below the mounting holes 420 of the top plate 400, while the other cooling fans 460 (exhaust ports 470) may be placed vertically below the mounting holes 420 of the top plate 400. In this case, all of the multiple (e.g., two) cooling fans 460 (multiple exhaust ports 470) may be placed vertically below the mounting holes 420 of the top plate 400. 【0173】 In this case, it is desirable that the reel relay board case 492 not place a connector opening 416 in any of the areas (predetermined areas 510) vertically below the predetermined space 500 corresponding to each of the multiple exhaust ports 470 (multiple cooling fans 460). However, doing so may hinder a suitable board design (wiring pattern design). Therefore, in the reel relay board case 492, the connector opening 416 may not be placed in the area (predetermined area 510) vertically below the predetermined space 500 corresponding to at least some (for example, one) of the multiple exhaust ports 470 (multiple cooling fans 460), and the connector opening 416 may be placed in the area (predetermined area 510) vertically below the predetermined space 500 corresponding to the other exhaust ports 470 (cooling fans 470). In this case, the connector opening 416 may be placed in any of the areas (predetermined area 510) vertically below the predetermined space 500 corresponding to each of the multiple exhaust ports 470 (multiple cooling fans 460). 【0174】 Furthermore, although the above embodiment described an example in which the main board unit 410 is the "first board unit" of the present invention, the "first board unit" is not limited to the main board unit 410 as long as it is positioned to face the exhaust port 470 (cooling fan 460) of the sub-board unit 440. 【0175】 Furthermore, although the above embodiment described an example in which the sub-board unit 440 is the "second board unit" of the present invention, the "second board unit" is not limited to the sub-board unit 440 as long as it is equipped with a cooling fan 460 and has an exhaust port 470. 【0176】 Furthermore, although the above embodiment described an example in which the reel relay board unit 490 is the "third board unit" of the present invention, the "third board unit" is not limited to the reel relay board unit 490 as long as it is positioned vertically below the predetermined space 500. 【0177】 Furthermore, in the above embodiment, the case in which the left side panel 408 and the back panel 402, the right side panel 406 and the back panel 402, and the bottom panel 404 and the back panel 402 are fixed with staples 620 as the first fixing means, and the top panel 400 and the back panel 402 are fixed with wood screws 622 as the second fixing means was explained as an example. However, the first and second fixing means only need to satisfy the relationship that the first fixing means is cheaper than the second fixing means, and the second fixing means has stronger fixing force than the first fixing means, and are not limited to the case in which staples 620 are used as the first fixing means and wood screws 622 are used as the second fixing means. For example, nails may be used as the first fixing means and wood screws 622 may be used as the second fixing means. For example, a stapler 620 may be used as the first fixing means, and a larger stapler 620 (a stapler with a higher unit price and stronger fixing power) may be used as the second fixing means. Alternatively, a wood screw 622 may be used as the second fixing means, and a wood screw with a smaller diameter than the wood screw 622 of the second fixing means (a wood screw with a lower unit price and weaker fixing power) may be used as the first fixing means. In this way, the first and second fixing means may use components (components of the same type) that are used in the same way. 【0178】 Furthermore, the first fixing means may be a fixing means that is cheaper in unit cost than the second fixing means, has weaker fixing force (strength) than the second fixing means, and is more difficult to remove with a predetermined tool than the second fixing means. For example, a nail may be used that is cheaper in unit cost than the wood screw 622, has weaker fixing force than the wood screw 622, and is more difficult to remove with a screwdriver than the wood screw 622. 【0179】 Furthermore, the second fixing means may be a fixing means that is more expensive than the first fixing means, has stronger fixing force (strength), and is easier to remove with a predetermined tool than the first fixing means. For example, a bolt may be used that is more expensive than the staple 620, has stronger fixing force than the staple 620, and is easier to remove with a wrench (an example of a predetermined tool) than the staple 620. 【0180】 In the above embodiment, the example described was the case where the left side panel 408 and the back panel 402, the right side panel 406 and the back panel 402, and the bottom panel 404 and the back panel 402 are fixed with staples 620. However, wood screws 622 may also be used in combination with staples 620 for these fixings. In this case, it is preferable that the number of wood screws 622 be less than the number of staples 620 for fixing the left side panel 408 and the back panel 402, the right side panel 406 and the back panel 402, and the bottom panel 404 and the back panel 402, but the number of staples 620 may be equal to or less than the number of wood screws 622. 【0181】 In the above embodiment, the case in which the top plate 400 and the back plate 402 are fixed with wood screws 622 was described as an example, but staples 620 may also be used in combination with wood screws 622 for this fixing. In this case, it is preferable that the number of wood screws 622 is less than the number of staples 620, but the number of staples 620 may be equal to or less than the number of wood screws 622. 【0182】 In the above embodiment, the case in which the main board unit 410 is placed on the upper inner side of the back plate 402 was described as an example, but a sub-board unit 440 (an example of a board unit) may also be placed there. In this case, the sub-board unit 440 may include a sub-board 444 provided with predetermined operating means (for example, a volume setting button), a sub-board case 442 that can rotate between a first position in which the surface of the sub-board 444 is visible and a second position in which the back surface of the sub-board 444 is visible, and a base member, and may be attached to the upper inner side of the back plate 402 via the base member. 【0183】 Furthermore, in the above embodiment, the example of screwing in the wood screws 622 to fix the top plate 400 and the back plate 402 was described using the outer surface of the back plate 402 as an example. However, the top plate 402 may be assembled so that its upper end surface (top surface) abuts against the inner surface of the top plate 400, and the wood screws 622 are screwed in from the outer surface to the inner surface of the top plate 400 to fix it, thereby allowing the screwing in of the wood screws 622 to be performed on the outer surface of the top plate 400. 【0184】 Furthermore, in the above embodiment, the example described was one in which the four heat dissipation holes, the first heat dissipation holes 624 to the fourth heat dissipation holes 630, in the back plate 402 are formed in a position that avoids being vertically below the fixing points with wood screws 622. However, some or all of the four heat dissipation holes may be formed in a position vertically below the fixing points with wood screws 622. 【0185】 Furthermore, in the above embodiment, the example was given of a case where the multiple mounting holes 420 provided in the top plate 400 of the storage box BX are through holes, but they are not limited to through holes and may be non-through holes, or a marker mark may be displayed without providing holes. In other words, island fixing parts (for example, mounting holes 420 or the display of a marker mark) used when attaching the gaming machine to the island equipment of the gaming hall may be provided in the top plate 400. 【0186】 Furthermore, in the above embodiment, the case in which the four heat dissipation holes, the first heat dissipation holes 624 to the fourth heat dissipation holes 630, are formed in the back plate 402 of the storage box BX in the area where the main board unit 410 is placed was described as an example. However, some or all of the four heat dissipation holes, the first heat dissipation holes 624 to the fourth heat dissipation holes 630, may be formed in a position that avoids the area where the main board unit 410 is placed, for example, above or below the area where the main board unit 410 is placed. In this case as well, as shown in Figure 27, it is desirable to position the main board unit 410 such that the shortest straight-line distance S1 from the wood screw 622 to the main board unit 410 is shorter than the shortest straight-line distance S2 from the staple 620 to the main board unit 410. 【0187】 Although not specifically mentioned in the above embodiment, as shown in Figure 28, the fixing points of the top plate 400 and the back plate 402 with wood screws 622 may be positioned to avoid the extension of the line of multiple mounting holes 420 (multiple island fixing points) provided in the top plate 400 in a straight line in the front-to-back direction. In this way, the strength can be increased compared to when the fixing points of the top plate 400 and the back plate 402 with wood screws 622 are positioned on the extension of the line of multiple mounting holes 420 (multiple island fixing points), and sufficient strength can be ensured to withstand the load on the top plate 400 caused by the work of attaching the gaming machine to the island equipment of the gaming hall. Note that the dashed lines A and B in Figure 28 are lines that show the extension of the multiple (3) mounting holes 420 arranged in the front-to-back direction. 【0188】 Furthermore, the invention of the above embodiment is not limited to slot machines that use physical tokens (game value) for gameplay, but can also be applied to gaming machines that use electronic tokens (game value), which are electronic information, as a game medium instead of physical tokens, such as Smart Pachislo (registered trademark), and gaming machines that use game balls (pachinko balls) for gameplay (pinball gaming machines, Smart Pachinko (registered trademark)). 【0189】 Smart pachislo includes a medal count control board that controls (manages) the number of electronic medals (number of game medals), and a game ball dispensing device connection terminal board (an example of a connection terminal board) that connects the smart pachislo to an external device, a medal dispensing machine (not shown). The medal count control board is connected to the main board 414 in a bidirectional manner and is connected to the medal dispensing machine in a bidirectional manner via the game ball dispensing device connection terminal board. It stores the electronic medals, which are electronic information lent from the medal dispensing machine, in a predetermined memory area and can perform counting processing to transfer some or all of the stored electronic medals to the medal dispensing machine. The game ball dispensing device connection terminal board is connected to the medal count control board and the medal dispensing machine in a bidirectional manner and receives signals related to the lending of electronic medals, transmits the results of the lending of electronic medals, transmits signals related to the counting of electronic medals, and transmits various information about the game machine. In such a smart pachislo machine, the "third board unit" of the present invention may be a medal count control board unit that includes a medal count control board and a medal count control board case that covers (houses) the medal count control board. [Explanation of symbols] 【0190】 (First Embodiment) BX storage box, FD front door, DW display window, LP rotating light, AL Frame lamp, R1 1st reel, R2 2nd reel, R3 3rd reel, SL Start Lever, B0 Bet Button, B1~B3 Stop Buttons, B4 Payment button, SP speaker, MP medal tray, 305 Power supply unit, 310 Reel unit, 320 Hopper unit, 400 Top panel, 402 Back panel, 404 Bottom panel, 406 Side panel, 408 Side panel, 410 Main board unit, 412 Main board case, 414 Main board, 416 Connector opening, 420 Mounting hole, 430 Connector, 440 Sub-board unit, 442 Sub-board case, 444 Sub-board, 450 Connector, 460 Cooling fan, 470 Exhaust vent, 480 Designated area, 490 Reel relay board unit, 492 Reel relay board case, 500 Designated space, 510 Designated area, 520 Roof section, 530 Dustproof cover, 540 Cooling fan installation section, 542 Screw receiving part, 600 back plate holder, 602 back plate holder, 604 back plate holder, 606 left back plate holder, 608 Right back plate support, 610 Left fixing part, 612 Right fixing part, 620 Stapler needle, 622 Wood screws, 624 First heat dissipation vent, 626 Second heat dissipation vent, 628 Third heat dissipation vent, 630 Fourth heat dissipation hole, 720 Base member, (Second embodiment) 640 Development connector placement area, 642 First connector, 644 Second connector, 646 Third connector, 648 Fourth connector, 650 Fifth connector, 652 Connector 6, 654 Connector 7, 656 Connector 8, 658 9th connector, 670 protrusion, 672 case cover, 674 case body, 676 Mounting section, 678 Development connector identification mark, 680 First terminal identification mark, 682 2nd terminal identification display, 684 3rd terminal identification display, 686 4th terminal identification display, 688 Facing section, (Third embodiment) 690 Centralized terminal board unit, 692 Centralized terminal board, 694 Centralized terminal board case, 696 Case body, 698 Case lid, 700 Connector for main board connection, 702 Connector for connecting external devices, 704 First case lid fixing part, 706 Second case lid fixing part, 708 Third case lid fixing part, 710 Fourth case lid fixing part, 712 Through hole, 714 Insertion opening, 716 Insertion opening

Claims

[Claim 1] A gaming machine comprising a circuit board and a circuit board case, The aforementioned substrate is provided with a predetermined area indicating the placement of electronic components that will not be mounted during mass production. The circuit board case is provided with a protrusion that faces the predetermined area and protrudes toward the predetermined area, in a gaming machine.

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