JPH09220318A - Noise removing device in pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove common mode noise contained in an ac. power source in a power circuit part for rectifying an a.c. power supply and supplying operating power supply to each part in each electric system of a pachinko machine. SOLUTION: A noise removing device in a pachinko machine comprises a power supply circuit part 44 for supplying operating power different in potential to the respective driving circuits 38, 39, 43 for driving a prize winning device and voice loud speakers disposed in a pachinko machine, a communication control circuit part 42 for conducting communication control to a pattern display device 2 disposed in the pachinko machine, and a main control circuit part 30 for controlling the drive of the driving circuits of the prize winning device and the voice loud speakers according to the detecting operation for a prize winning ball, and sending data to the communication control circuit part 42. A common mode choke coil 46 for removing noise generated in an a.c. power supply is interposed between the input terminal of the power supply circuit part 44 and the external a.c. power supply 45.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a noise removing device for a pachinko machine.

[0002]

2. Description of the Related Art A pachinko machine is provided with a prize winning device arranged on a game board surface, a voice loudspeaker for amplifying voice, a pattern display device, various driving lamps and various driving elements such as display LEDs. Along with this, a driver for operating each of these drive elements and a control device for controlling the drive of each driver according to the game situation are provided.

Each driver and control device for operating each drive element is supplied with power for operation from the power supply circuit section. The power supply circuit section rectifies an external AC power supply, smoothes it into a DC power supply, transforms it into a predetermined constant voltage through a switching regulator or a three-terminal regulator, and supplies power for operating those drivers and control devices. We are supplying.

As a countermeasure against noise in the power supply circuit section of a conventional pachinko machine, an input terminal of the power supply circuit section and an external AC power supply (AC
Line), a ceramic capacitor or a zinc oxide varistor was interposed. According to this one, AC
The ceramic capacitor or the zinc oxide varistor conducts to the overvoltage and the electrostatic noise that come in from the line, so that they can be avoided.

However, in this device, the noise generated by interrupting a large current at a high speed by conducting a transformation through a switching regulator or a three-terminal regulator in order to obtain a predetermined constant voltage is a conduction noise conducted through an input line. Then, it returns to the AC power supply and becomes common mode noise in the AC power supply. Therefore, the switching regulator may malfunction.

By the way, one of the switching regulators
A common mode choke coil that removes noise when used on the secondary side is sold as a product.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to rectify common mode noise contained in an AC power supply in a power supply circuit section that rectifies an AC power supply and supplies operating power to each section in each electric system of a pachinko machine. Another object of the present invention is to provide a noise removing device for a pachinko machine that can remove the noise.

[0008]

In order to solve the above-mentioned problems, a noise elimination device for a pachinko machine according to the present invention comprises drive circuits for driving a winning device and a voice loudspeaker installed in the pachinko machine, Communication control circuit section for performing communication control for the symbol display device provided in the pachinko machine, and drive control of the drive circuit of the winning device and the voice loudspeaker according to the detection operation of the winning ball and the communication control. A main control circuit section for transmitting data to the circuit section is provided with a power supply circuit section for supplying operating power supplies of different potentials, and an AC power supply is generated between an input terminal of the power supply circuit section and an external AC power supply. It is characterized by interposing a common mode choke coil for removing noise.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of a game board of a pachinko machine used in an embodiment of the present invention. Gaming board 1
A symbol display unit 3 provided with a special symbol display device 2 is arranged in the upper center of the, and a start winning opening for operating the special symbol display device 2 in the lower center of the game board 1 below the symbol display unit 3. An ordinary electric auditors product 5 having 4 is provided, and below the ordinary electric auditors product 5, a winning prize unit unit 7 having a special winning opening 6 is arranged below the game board 1.

At the center of the symbol display unit 3, a special symbol display device 2 having a special symbol display portion 8 is arranged, and above the symbol display unit 3, a normal symbol display device 9 is arranged, and the symbol display unit is provided. Gates 10 and 11 for operating the normal symbol display device 9 are provided on the left side and right side of 3, respectively.
The gates 1 are arranged on the left and right sides of the normal symbol display device 9.
Normal symbol memory number display LED12 for storing and displaying up to four game ball passages to 0 and 11 is provided, and a special symbol display portion 8
Above the above, four memory number display LEDs 13 for storing and displaying the number of winnings to the start winning port 4 up to four are provided.

An electric attacker-type winning device 14 having a special winning opening 6 is provided in the center of the winning prize unit 7, and inside the special winning opening 6, the number of winnings to the special winning opening 6 is in the center. The special winning opening winning number display LED 15 for displaying is provided, and the special device operating area 16 is provided on the left side.

In FIG. 1, reference numeral 17 is an indicator light A.
, Reference numeral 18 is a display light B, reference numeral 19 is a display light C, reference numeral 20 is a display light D, reference numeral 21 is a display light E, each of the display lights AE is a pachinko game. It is turned on for each group depending on the situation. Further, reference numeral 22 is a decorative LED.

Further, reference numerals 23 to 27 are ordinary prize winning openings, and the prize winning openings 23 to 25 and the starting prize winning opening 4 are shown.
Is set as a payout opening for 7 prize balls for the winning balls, the winning openings 26 and 27 are set as a payout opening for 10 prize balls for the winning balls, and the big winning opening 6 is for the winning balls. In contrast, 15 prize balls are set as a payout opening. Further, reference numeral 28 is a foul ball stop plate, and reference numeral 29 is
It is a return rubber.

Next, an electric system installed in the pachinko machine of the embodiment will be described. FIG. 2 is a principal block diagram showing an electric system provided in the pachinko machine according to the embodiment. The main control unit 30 that controls the pachinko game performed on the game board 1 has a central processing unit (hereinafter, CPU) 31 and a RAM 32 that can be written and read by the CPU 31 at any time, and a game program executed by the CPU 31. The stored ROM 33, the clock / reset circuit 34 for inputting a reset signal for determining the processing cycle of the CPU 31, the input of the detection signal necessary for the CPU 31 to perform the processing, and the drive control signal for the CPU to drive each driving element. Programmable peripheral interface circuit (hereinafter referred to as PPI circuit) used for output 3
5. The decoding circuit 36 used by the CPU 31 to select the input destination or output destination of the data including the PPI 35.

A gate passage detection switch SW1 provided for the gates 10 and 11 of the game board 1 shown in FIG. 1, a starting opening winning detection switch SW2 provided for the starting winning opening of the ordinary electric accessory 5, a winning combination. The special winning opening winning detection switch SW3 arranged for the special winning opening of the accessory unit, the special device operating area switch SW4 arranged in the special device operating area 16 in the special winning opening 6, the winning opening 23, the winning Each of the winning ball detection switches SW5 for detecting the winning balls that have won in the mouth 24 and the winning hole 25 and the winning ball detection switches SW6 that detect the winning balls in the winning holes 26 and 27 for each ball are respectively switches. PPI circuit 35 through detection circuit 37
Of the switches SW1 to SW6 are simultaneously input to the CPU 31 via the PPI circuit 35.

Further, a normal electric accessory solenoid SOL1 for expanding the starting winning opening 4 of the normal electric accessory 5 provided on the game board of FIG. 1 is connected to the output port of the PPI circuit 35 via the driver 38. The special winning opening opening solenoid SO for connecting and opening the special winning opening 6 of the winning prize unit 7
L2 is connected to the output port of the PPI circuit 35 via the driver 39, and the indicator lights A to E corresponding to the reference numerals 17 to 21 are transmitted via the respective indicator light drive circuits 40 to the PPI 35.
Connected to the output port of the normal symbol display device 9, normal symbol memory number display LED12, memory number display LED13, special winning opening winning number display LED15, and decoration LED22 each L
It is connected to the output port of the PPI circuit 35 via the ED display circuit 41.

Thus, the ordinary electric accessory solenoid SO
L1, special winning opening opening solenoid SOL2, indicator light A to indicator light E, normal symbol display device 9 and each LED 12, 1
3, 15 are controlled in operation simultaneously or separately in accordance with each drive signal output from the CPU 31 via the PPI circuit 35.

Further, the PPI circuit 35 is connected to a special symbol communication interface circuit 42 for transmitting transmission data to the special symbol display device 2 of FIG. 1 which is a liquid crystal display device. The special symbol communication interface circuit 42 is connected to the CPU 31 via a data bus, and is also selectably connected to the CPU 31 via the decoding circuit 36.

Although not shown, the special symbol display device 2 includes a microcomputer having a CPU, a ROM and a RAM, a VDP (video display processor), a video RAM, a character ROM storing symbol data, and a color. Palette R for setting data
Including AM, LCD controller, etc., when the transmission data output from the CPU 31 side through the special symbol communication interface circuit 41 is input according to the pachinko game situation, VDP is the symbol data from the character ROM according to the transmission data. Read out to create image data in the video RAM, set color data in the palette RAM, and output the symbol data and the color data to the LCD controller, thereby displaying or changing the symbols on the special symbol display section 8. is there.

The voice amplification circuit 43 is connected to the CPU 31 via the decoding circuit 36 and a buffer IC (not shown) for voice data input latch connected to the CPU 31 via the data bus and the control bus. A software-controlled sound generator (not shown, hereinafter referred to as SSG) that inputs the voice data output from the buffer IC, creates an analog waveform based on the input voice data, and outputs the analog waveform, and outputs from the SSG. And an amplifier (not shown) that amplifies and outputs the analog waveform. In addition, the voice loudspeaker circuit 4
3 is connected to a speaker (not shown).

The decoding circuit 36 is for selecting a partner device for inputting and outputting data by a combination of a plurality of signals output from the CPU 31, and as the partner device, a PPI circuit 35 and a communication interface circuit for special symbols. 41 or the voice boosting circuit 43 is selected.

The power supply circuit section 44 rectifies and smoothes the external AC power supply 45 and converts it into a DC power supply.
Lamp power supply for E, solenoids SOL1 and SO
The L2 actuating power source, the control circuit including the CPU 31, the PPI 35, and the drive circuits are generated to supply the control actuating power source. A common mode choke coil 46 that removes noise generated in the AC power supply is interposed between the input end of the power supply circuit unit 44 and the external AC power supply 45. The common mode choke coil 46 is, for example, a coil of two windings that are magnetically wound opposite to each other on a toroidal core.

FIG. 3 is a block diagram of essential parts of an external AC power supply 45, a common mode choke coil 46, and a power supply circuit section 44 of an embodiment relating to the noise removing device in the pachinko machine of the present invention. The power supply circuit unit 44 includes the common mode choke coil 4 that removes noise generated in the AC power supply.
The input end is connected to the external AC power supply 45 via 6. The input end of the power supply circuit section 44 is branched into two, one input end is connected to the input terminal of the bridge rectifier 47, and the other input end is connected to the input terminal of the bridge rectifier 48.

A smoothing capacitor C1 is connected between the + output terminal and the − output terminal of the bridge rectifier 47, and the − output terminal side of the smoothing capacitor C1 is grounded. Also, in the subsequent stage of the + output terminal of the smoothing capacitor C1,
A constant voltage circuit 51 including a capacitor C2, a three-terminal regulator 49, and a capacitor C3 is provided, and an output terminal 50c of the constant voltage circuit 51 is provided at a subsequent stage of the capacitor C3.

Further, a smoothing capacitor C4 is connected between the + output terminal and the − output terminal of the bridge rectifier 48, the − output terminal side of the smoothing capacitor C4 is grounded, and the output terminal 50a is provided at the subsequent stage of the capacitor C4. And an output terminal 50b are provided.

Next, the operation of the circuit shown in FIG. 3 will be described. The AC power supply voltage of the external AC power supply 45 is applied to the input terminal of the power supply circuit section 44 via the common mode choke coil 46. At this time, the common mode choke coil 4
Since the current directions of the two windings of 6 are opposite, they cancel each other out by generating magnetic fluxes in opposite directions, do not act as the inductance of the coil and cause magnetic saturation, and therefore the same phase of the AC power supply voltage It does not affect the ingredients.

On the other hand, regarding the in-phase component of the noise added between the two wires and the ground, the magnetic fluxes generated by this current are in the direction of adding each other to generate a large inductance, and the common mode noise is removed by the inductance to the ground. To do.

FIG. 4 shows respective waveforms of the external AC power supply Ec, the common mode noise Es, and the external AC power supply Ec + Es when the common mode noise is added.

Therefore, the AC power supply voltage from which common mode noise has been removed is applied to the input end of the power supply circuit section 44. The frequency of noise that can be attenuated is preferably about several 100 KHz to 50 MHz. AC power supply voltage with common mode noise removed is
Inputs to the bridge rectifiers 47 and 48, respectively.

The bridge rectifier 47 full-wave rectifies the input AC power supply voltage and supplies it to the smoothing capacitor C1. The smoothing capacitor C1 smoothes it into a DC voltage by charging / discharging action, and inputs it to the constant voltage circuit 51 in the subsequent stage. To do. Constant voltage circuit 5
The capacitor C2 in 1 is a capacitor for input stabilization and cuts normal mode noise. 3
The DC voltage input to the terminal regulator 49 is transformed into a predetermined constant voltage, for example, DC 5V is output. The capacitor C3 in the constant voltage circuit 51 is an output stabilizing capacitor, and is effective in reducing output ripple and output noise of the voltage output from the three-terminal regulator 49 and reducing the influence of load fluctuation current. Constant voltage circuit 51
The DC output constant voltage is supplied from the output terminal 50c to each control circuit including the CPU 31 and the PPI 35 and each drive circuit 38, 39, 40, 41 as a control operating power source.

The AC power supply voltage from which common mode noise has been removed is also input to the bridge rectifier 48, and the bridge rectifier 48 full-wave rectifies the input AC power supply voltage and supplies it to the smoothing capacitor C4. C4
Is smoothed to a DC voltage by a charging / discharging action, and the power source for the lamps for the indicator lamps A to E and the solenoid S from the output terminal 50a and the output terminal 50b in the latter stage of the capacitor C4.
Output is supplied as a power source for operating OL1 and SOL2.

As described above, the AC power supply is rectified,
A common mode choke that removes noise generated in the AC power supply between the input terminal of the power supply circuit unit 44 and the external AC power supply 45 in the power supply circuit unit 44 that supplies power for operation to each unit in each electric system of the pachinko machine. By interposing the coil 46, common mode noise included in the external AC power supply 45 can be removed. Therefore, the malfunction of the three-terminal regulator 49 that constitutes the constant voltage circuit 51 is prevented, and for example, each drive circuit for driving the winning device and the voice loudspeaker installed in the pachinko machine, that is, the normal electric drive in FIG. Special symbol communication interface circuit 42 as a communication control circuit unit for performing communication control with the accessory solenoid SOL1, the special winning opening opening solenoid SOL2, the voice loudspeaker circuit 43, and the symbol display device 2 provided in the pachinko machine. , A main control circuit unit 30 for driving and controlling the drive circuits of the winning device and the voice loudspeaker according to the detection operation of the winning ball and transmitting data to the communication control circuit unit.
Each can supply a stable operating power supply.

The game on the game board 1 shown in FIG. 1 and the operation of the circuit shown in FIG. 2 will be described below.

In FIG. 1, the game balls are gates 10 and 11.
When any of the above is passed, the fluctuation of the symbol of the normal symbol display device 9 is started, and about 29.6 seconds after the symbol of the normal symbol display device 9 starts changing, the symbol of the normal symbol display device 9 is changed. Be stopped. When the stopped ordinary symbol is 7, the ordinary electric accessory 5 is activated and the starting winning opening 4 is 0.
It is expanded for 3 seconds. Further, when the stopped normal symbol is other than 7, the start winning opening 4 is not expanded.

In FIG. 2, the CPU 31 sets the output port PA10 (not shown) of the PPI circuit 35 to high. It should be noted that the CPU 31 outputs the P
The PI circuit 35 is selected. By setting PA10 to high, the first transistor array (not shown) of each LED display circuit 41 is activated, and an operating current for lighting is supplied. Next, PA00 to PA07 of the PPI circuit 35
By setting a bit (not shown) opposite to the symbol data to high, the second transistor array (not shown) of each LED display circuit 41 connected to the port set to high operates. Then, the symbol is displayed on the normal symbol display device 9. In addition, the CPU 31 uses the PPI circuit 35.
By setting low to PA00 to PA07 and PA10, the current supply to the normal symbol display device 9 is stopped and no display is made.

When the CPU 31 determines that the stop symbol of the normal symbol display device 9 is 7, the CPU 31 sets the output port PB05 (not shown) of the PPI circuit 35 to high. The CPU 31 selects the PPI circuit 35 via the decoding circuit 36. This activates the driver 38,
Ordinary electric accessory solenoid SOL1 is pulled and start winning hole 4
Expands. When 0.3 seconds have passed since the start opening 4 was opened, the CPU 31 sets PB05 of the PPI circuit 35 low. As a result, the operation of the driver 38 ends, the normal electric accessory solenoid SOL1 returns to the original state, and the expansion of the start winning opening 4 ends.

Incidentally, in FIG. 1, a normal symbol display device 9
During the operation of or the opening of the winning opening 4, the gate 10,
When the passage of the game ball to 11 occurs, up to four are stored, the number of memory is displayed by the normal symbol memory number display LED12, the number of lights is displayed, and after the normal symbol display device 9 is stopped or the start winning opening 4 is expanded. After the opening operation is completed, the operation of the normal symbol display device 4 is started again.

In FIG. 1, when a game ball is won in the starting winning opening 4, the special symbol display device 2 starts symbol fluctuation, and when about 6.3 seconds or more elapses after the symbol fluctuation starts,
The design is stopped in the order of left, right, and middle.

In FIG. 2, the CPU 31 has a main controller 3
The special symbol is displayed by transferring the transmission data corresponding to the state of 0 to the special symbol display device 2 via the special symbol communication interface circuit 42.

The CPU 31 sets the output port PA15 (not shown) of the PPI circuit 35 to high. Note that C
The PU 31 selects the PPI circuit 35 via the decoding circuit 36. Next, the transmission data (8 bits) is output to the special symbol communication interface circuit 42 via the data bus. The CPU 31 selects the special symbol communication interface circuit 42 via the decoding circuit 36. CPU
The transmission data output from 31 is input and latched in the buffer IC (not shown) of the special symbol communication interface circuit 42. Next, the CPU 31 causes the decoding circuit 3
The PPI circuit 35 is selected via 6 and the PA 16 (not shown) of the PPI circuit 35 is set to high. After that, the CPU 31 sends the PPI via the decoding circuit 36.
The circuit 35 is selected and the PA15 of the PPI circuit 35 is selected.
Set low on (not shown). The special symbol communication interface circuit 42 sends a select signal and a write signal to the special symbol display device 2 in response to the PA15 (not shown) turning to low, and then the special data is latched into the buffer IC to transmit the special symbol. It is sent to the display device 2.

In FIG. 1, if the symbol combination of the special symbol display unit 8 when the symbol of the changing special symbol display unit 2 is stopped is one of the combinations shown in FIG. Is activated, and the special winning opening 6 is about 29.
It is opened for 5 seconds. When the combination of symbols on the special symbol display portion 8 is other than the combination shown in FIG. 5, the special winning opening 6 is not opened.

In FIG. 2, the CPU 31 determines that the combination of special symbols is a combination of big hits,
The output port PC02 (not shown) of the PPI circuit 35 is set to high. It should be noted that the CPU 31 has a decoding circuit 36.
The PPI circuit 35 is selected via. As a result, the driver 39 operates, the special winning opening opening solenoid SOL2 is pulled, and the special winning opening 6 of the winning device 14 is opened. CP
When U31 determines that the closing condition of the special winning opening 6 is satisfied, the CPU 31 sets low to PC02 of the PPI circuit 35. This ends the operation of the driver 39,
The special winning opening opening solenoid SOL2 returns to its original state, and the special winning opening 6 is closed.

In FIG. 1, while the special symbol is fluctuating or the special winning opening 6 is open, a new game ball starts the winning opening 4
When the player wins a prize, up to four memories of the starting prize are stored, and the number-of-memories display LED 13 is turned on and displayed. After the stop of the fluctuation of the special symbol or after the opening operation of the special winning opening 6, the fluctuation of the special symbol is started again.

In FIG. 1, when the game ball that has won the special winning opening 6 passes through the special device operating area 16 while the special winning opening 6 is open, the special device is in the operating state, and after the opening of the special winning opening 6 is completed. , The special winning opening 6 is opened again. In addition, the number of times the special winning opening 6 is continuously opened is up to 16 times including the first opening. In addition, when 10 game balls are won in the opened big winning opening 6, the opening time of the big winning opening 6 is about 2
Even within 9.5 seconds, the opening operation of the special winning opening 6 is immediately stopped and the special winning opening 6 is closed.

In FIG. 2, when the game ball passes through the special device operating area 16, the special device operating area switch SW4
Is input to the input port PB15 (not shown) of the PPI circuit 35 via each switch detection circuit 37. The CPU 31 uses the input port PB1 of the PPI circuit 35.
If 5 changes from high to low, it is determined that the game ball has passed to the special device operation area 16, and the PC of the PPI circuit 35.
By setting the high to 02, the special winning opening 6 is opened again.

Regarding the voice display of the sound effect, FIG.
At the same time, the CPU 31 selects the voice boosting circuit 43 via the decoding circuit 36, and outputs the voice data (8 bits) to the voice boosting circuit 43 via the data bus.
The voice data is held in a buffer IC (not shown) for latching the voice data input of the voice amplification circuit 43, and the voice data output from the buffer IC is converted into an analog waveform by the SSG and output to the amplifier. Is SS
The analog waveform output from G is amplified and output to a speaker (not shown).

[0047]

According to the noise eliminator for a pachinko machine of the present invention, the input terminal of the power circuit section is rectified in the power circuit section for rectifying the AC power source and supplying the operating power to each section in each electric system of the pachinko machine. Between the external AC power supply and
By interposing the common mode choke coil that removes noise generated in the AC power supply, the common mode noise included in the external AC power supply can be removed.

Therefore, malfunction of the three-terminal regulator constituting the constant voltage circuit is prevented, and, for example, each drive circuit for driving the winning device and the voice loudspeaker provided in the pachinko machine and the pachinko machine are provided. Communication control circuit unit for communication control to the symbol display device, drive control of the drive circuit of the winning device and the voice loudspeaker according to the detection operation of the winning ball, and main control for transmitting data to the communication control circuit unit It is possible to supply stable operating power sources to the circuit section and reduce malfunctions of the pachinko machine due to changes in operating voltage due to noise.

[Brief description of drawings]

FIG. 1 is a front view of a game board of a pachinko machine used in an embodiment of the present invention.

FIG. 2 is a block diagram of essential parts showing an electric system provided in the pachinko machine according to the embodiment.

FIG. 3 is a block diagram of main parts of an external AC power supply, a common mode choke coil, and a power supply circuit unit according to an embodiment of a noise eliminator in a pachinko machine of the present invention.

FIG. 4 shows an external AC power supply Ec, a common mode noise Es, and an external AC power supply E when common mode noise is added.
Waveform diagram showing each waveform of c + Es

FIG. 5 is a view showing a combination of jackpot symbols on the display unit of the special symbol display device.

[Explanation of symbols]

 1 game board 2 special symbol display device 3 symbol display unit 4 start winning a prize 5 ordinary electric prize 6 big winning a prize 7 prize winning prize unit 8 special symbol display 9 ordinary symbol display device 10 gate 11 gate 12 ordinary symbol memory number display LED 13 Memory number display LED 14 Prize winning device 15 Big winning opening Prize winning number displaying LED 16 Special device operating area 17 Indicator light A 18 Indicator light B 19 Indicator light C 20 Indicator light D 21 Indicator light E 22 Decorative LED 23 Award hole 24 Prize Mouth 25 winning mouth 26 winning mouth 27 winning mouth 28 foul ball stop plate 29 return rubber 30 main control unit 31 CPU 32 RAM 33 ROM 34 clock reset circuit 35 PPI circuit 36 decoding circuit 37 each switch detection circuit 38 driver 39 driver 40 each Indicator light drive circuit 41 Each LED display circuit 42 Special design Communication interface circuit 43 Audio loudspeaker circuit 44 Power supply circuit unit 45 External AC power supply 46 Common mode choke coil 47 Bridge rectifier 48 Bridge rectifier 49 3 terminal regulator 50a output terminal (lamp power supply) 50b output terminal (solenoid operation power supply) 50c output terminal ( Control power supply) 51 Constant voltage circuit SOL1 Normal electric accessory solenoid SOL2 Special winning opening opening solenoid SW1 Gate passage detection switch SW2 Starting opening winning detection switch SW3 Large winning opening winning detection switch SW4 Special device operating area switch SW5 Winning ball detecting switch SW6 winning ball detection switch C1 smoothing capacitor C2 capacitor C3 capacitor C4 smoothing capacitor

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[Procedure amendment]

[Submission date] April 2, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0046

[Correction method] Change

[Correction contents]

Regarding the voice display of the sound effect, FIG.
At the same time, the CPU 31 selects the voice boosting circuit 43 via the decoding circuit 36, and outputs the voice data (8 bits) to the voice boosting circuit 43 via the data bus.
The voice data is held in a buffer IC (not shown) for voice data input latch of the voice amplification circuit 43, and the voice data output from the buffer IC is converted into an analog waveform by the SSG and output to the amplifier. Is SS
The analog waveform output from G is amplified and output to a speaker (not shown). According to the noise removing device of the embodiment
The common-mode noise included in the external AC power supply,
3 terminals that compose a constant voltage circuit because they can be removed
It is possible to prevent malfunction of the regulator.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0048

[Correction method] Change

[Correction contents]

Each drive circuit for driving the winning device and the voice loudspeaker installed in the pachinko machine, the communication control circuit unit for performing communication control for the symbol display device installed in the pachinko machine, the winning ball It is possible to supply stable operating powers to the main control circuit unit that drives and controls the drive circuits of the winning device and the voice loudspeaker according to the detection operation of It is possible to reduce malfunction of the pachinko machine due to the voltage changing due to noise.

Claims (1)

[Claims] 1. A drive circuit for driving a winning device and a voice loudspeaker installed in a pachinko machine, and a communication control circuit section for performing communication control with respect to a symbol display device installed in a pachinko machine. , Driving a drive circuit of the winning device and the voice loudspeaker according to the detection operation of the winning ball, and supplying an operating power source of different potential to the main control circuit unit for transmitting data to the communication control circuit unit. A noise removing device for a pachinko machine, comprising a power supply circuit section, and a common mode choke coil for removing noise generated in the AC power supply is interposed between an input end of the power supply circuit section and an external AC power supply.