Konami System 573

Konami System 573
Based on: PlayStation Developer: Konami Publisher: Konami Released internationally: 1997 This console has hidden developer credits. This console has hidden development-related text. This console has revisional differences.

An arcade system based on the PlayStation, mostly known for being used by almost all of Konami's rhythm games prior to 2005. At least three different variants of the BIOS are known to exist, along with four board variations (Plain, Analog, Digital, and Satellite Terminal).

The name "System 573" comes from goroawase, a form of Japanese wordplay in which numbers are used to stand in for their phonetic reading. "573" can be read "ko - na - mi".

Developer Credit

Present at offset 0x12C of the BIOS files.

Konami OS by T.H.

Build Dates

Scattered throughout the BIOS files are build dates, along with a different developer credit. They seem to differ slightly between the BIOS used.

700a01.22g (Standard BIOS)	$Id: intr.c,v 1.76 1997/02/12 12:45:05 makoto Exp $ $Id: sys.c,v 1.135 1997/09/02 13:37:26 noda Exp $
700a01.22g (Gachaga Champ BIOS)	$Id: intr.c,v 1.76 1997/02/12 12:45:05 makoto Exp $
700b01.22g (Dancing Stage EuroMIX 2 BIOS)	$Id: intr.c,v 1.75 1997/02/07 09:00:36 makoto Exp $ $Id: sys.c,v 1.140 1998/01/12 07:52:27 noda Exp yos $

Revisional Difference

While the standard and Gachaga Champ versions of the BIOS are outwardly identical, the Dancing Stage EuroMIX 2 version has a different, more polished start-up screen. The various storage mediums (flash card, EEPROM, and CD) all get icons to show what's being checked, a small loading indicator was added, and the drop shadow on text was removed (presumably because it could be interpreted as a convergence issue on a CRT).

Standard	Dancing Stage EuroMIX 2

Standard	Dancing Stage EuroMIX 2