The or CPS-2
is an arcade system board
that Capcom first used in 1993 for Super Street Fighter II
. It was successor to their previous CP System
and Capcom Power System Changer
arcade hardware and was succeeded by the CP System III
hardware in .
The earlier Capcom system board
, the original CP System (or CPS-1), while successful, was very vulnerable to bootleggers making unauthorized copies of the games. In order to rectify the situation, Capcom took the CP System hardware (with QSound
) with minimal changes and employed encryption on the program ROMs to prevent software piracy. Due to the encryption, the system was never bootlegged until unencrypted program data became available.
The CP System II consists of two separate parts; the A
board, which connects to the JAMMA
harness and contains components common between all CP System II games, and the B
board, which contains the game itself. The relationship between the A
board is basically the same as that between a home video game console and cartridge. CP System II A
boards are color-coded by region, and each board can only be used with its same-colored mate. The exception to this is that the blue and green boards can be used together.
boards hold battery-backed memory containing decryption keys needed for the games to run. As time passes, these batteries lose their charge and the games stop functioning, because the CPU cannot execute any code without the decryption keys. This is known to hobbyists... Read More