Japan Amusement Machine and Marketing Association

The Japan Amusement Machine and Marketing Association (Japanese: 一般社団法人日本アミュ一ズメントマシン協会), abbreviated JAMMA, is a Japanese trade association headquartered in Tokyo.

JAMMA is run by representatives from various arcade video game manufacturers, including Namco Bandai, Sega, Taito, Tecmo, Capcom, Konami and Atlus, among others.

Until 1 April 2012, JAMMA stood for Japan Amusement Machinery Manufacturers Association (社団法人日本アミューズメントマシン工業協会). The corporation was renamed after they merged with the Nihon Shopping Center Amusement Park Operator's Association (NSA) and the Japan Amusement Park Equipment Association (JAPEA).

Before 2012, JAMMA had been organizing an annual trade fair called the Amusement Machine Show for many years. In 2013, they began collaborating with the Amusement Machine Operators' Union (AOU), who had their own trade show, to promote a new event: the Japan Amusement Expo.

From January 1981 to June 1989, the Japan Amusement Machinery Manufacturers Association started was a rights group.

Connector standards

JAMMA is the namesake of a widely used wiring standard for arcade games. An arcade cabinet wired to JAMMA's specification can accept a motherboard for any JAMMA-compatible game. JAMMA introduced the standard in 1985; by the 1990s, most new arcade games were built to JAMMA specifications. As the majority of arcade games were designed in Japan at this time, JAMMA became the de facto standard internationally.

Before the JAMMA standard, most arcade PCBs, wiring harnesses, and power supplies were custom-built. When an old game became unprofitable, many arcade operators would rewire the cabinet and update the artwork in order to put different games in the cabinets. Reusing old cabinets made a lot of sense, and it was realized that the cabinets were a different market from the games themselves. The JAMMA standard allowed plug-and-play cabinets to be created (reducing the cost to arcade operators) where an unprofitable game could be replaced with another game by a simple swap of the game's PCB. This resulted in most arcade games in Japan (outside racing and gun shooting games that required deluxe cabinets) to be sold as conversion kits consisting of nothing more than a PCB, play instructions and an operator's manual.

The JAMMA standard uses a 56-pin edge connector on the board with inputs and outputs common to most video games. These include power inputs (5 volts for the game and 12 volts for sound); inputs for two joysticks, each with three action buttons and one start button; analog RGB video output with negative composite sync; single-speaker sound output; and inputs for coin, service, test, and tilt.[1]

Later games (e.g., Street Fighter II: The World Warrior and X-Men) use arcade boards that incorporate extra connectors or utilize unused JAMMA pins to implement extra buttons, different controller types, or support more players. These games are sometimes referred to as JAMMA+.

JAMMA Video Standard

JAMMA Video Standard (JAMMA VIDEO規格, JVS) is a newer JAMMA connector standard designed to use modern peripherals.

The standard consists of peripheral device connections and communication protocol sections.

In the peripheral device connections, it specifies the use of separate I/O board for peripheral devices.[2]

1st edition

It was released in 1996-11-15.[3]

Peripheral devices are connected to USB-A port on the I/O board, while the USB-B on the I/O board is used to connect it to the USB-A port on the main board.

2nd edition

It was released in July 17, 1997.

3rd edition

It was released in May 31, 2000.

Video signal standard was defined in 2 steps, with step 1 enacted before year 2000, and step 2 beginning from 2000. Step 2 has different timing parameters.

Recommended timing values for SYNC code were added.

At protocol section, general software entry action code type is added. Character output code now supports ASCII, Shift-JIS. Mahjong controller software entry code, general driver outputs 2-3 are added.

Amusement Machine Prize guideline

The Amusement Machine prize guideline (アミューズメントマシンにおいて提供される適正景品のガイドライン) is a guide for the type of prize that should be provided by arcade operator. The standard was enacted in 2004-11-01.[3] The standard was released on 2004-10-21.

It specifies the retail value of a prize item cannot exceed 800 yen. In addition, following items cannot be manufactured, sold, or transferred to arcades as prizes:

References

  1. ↑ JAMMA/AAMA Standard Connector Pinouts
  2. ↑ JVS-PAC Introduction
  3. 1 2 Video output connector uses DB-15 used by analog VGA monitors, output connector uses RCA stereo connectors.

External links

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