Four Roses (1999) PCB N° R0898B made in Italy 1x R65C02P2 (main) 1x WF19054 (sound) 1x TDA2003 (sound) 1x HD46505 (CRC controller) 1x EP87C750EBPN (8-bit microcontroller family 1K/64 OTP ROM, low pin count)(read protected) 2x MACH210-15JC-18JI 1x oscillator 16.000MHz 1x TMS27C512 (10) 1x TMS27C256 (20) 1x M27C4001 (30) 1x M27C512 (4.10) 1x PALCE22V10H (read protected) 1x JAMMA edge connector 1x trimmer (volume) 1x 8 switches dip (SW1) 1x 4 switches dip (SW2) 3x pushbutton (SW3-statistic,SW4-management,SW5-ricarica) 1x battery