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Like in many other Konami PCBs all the sprites generation circuit is handled by two custom ASICs, on this board there is the ‘053245’ which generates the address for the MASK ROMs and the ‘053244’ which processes the data: I launched a MASK ROMs check which reported no errors :īut checking the two sprites MASK ROMs revealed the address lines were all stuck LOW, no activity : I replaced it and board finally booted into game but, as expected, sprites were displayed only half or totally missing: Red roms are similar between all versions but green roms differ, which means that if you wish to change the game's region or language, it may be possible make the change. I desoldered the chip, it failed the out-of-circuit testing of my EPROM programmer: Below is a table representhing the roms for Sunset Riders (Asia 2 Players ver. However, anyone else with a hankerin' for a spirited shoot-em-up can ride happily into the sunset with these Riders. Gamers who have both 16-bit systems won't need this game if they've already got the Sega version. Probing this RAM with a scope revealed unhealthy signals on some data lines, here’s a comparison with good ones on the left of the picture below : Fans of the arcade game will enjoy taking Sunset Riders home on the range. Other times it failed the self-test reported a bad device device in question is one of the two 6264 WORK RAM :

Owner told me he bought the board as working but actually it lacked of sprites when powered it up.I got, instead, different results.Sometimes the board passed the POST but then stayed on a static striped screen: Got from USA some faulty PCBs for repair, there was among them a Sunset Riders by Konami :