| 摘要 |
PROBLEM TO BE SOLVED: To change specifications and perform addition to specifications even when a control board is assembled to a game machine.SOLUTION: A processing device 315 having a CPU, EEPROM, RAM, clock, and I/O port is mounted on a main control board 310. The EEPROM has pre-installed write/overwrite program PGM 11 and authentication program PGM 12 which are set to be overwritten-prohibited, a write/overwrite enabled program storage area MEM 11 and a data storage area MEM 12. When a connector 710 of a ROM writing terminal 700 is connected to a write/overwrite dedicated terminal 311, the write/overwrite program PGM 11 starts. An ID and a password are authenticated, program output and data output are permitted, and received program and data are written in the storage areas MEM 11, MEM 12 to which the EEPROM corresponds. |
