Fighting Vipers 2 (Sega Model 3) ROM Board Jumper configuration.

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    • Fighting Vipers 2 (Sega Model 3) ROM Board Jumper configuration.

      I picked up an empty Model 3 Step 2 ROM board that I'd like to setup as a Fighting Vipers 2.

      Has anyone done this conversion before? I don't believe there is a security board so it should just be a straight ROM swap correct?

      looking at MAME source I'm guessing I'll need the following IC's:
      27C322 x36 (u1-u16, u22-u41)
      27C160 x4 (u17-u20)
      27C4096 x1 (u21)

      I have a bunch of 322s already but I'll likely still need to order some more to cover this thing. Is 100ns fast enough or should I look for faster ones?

      I'm also concerned about the Jumpers and the PAL. Some of the Jumpers are documented in MAME but it'd be nice to have some good verification going into this as the specific Jumper configuration for FV2. Do Model 3 game ROM board share the same PAL or is it unique per game?

      Any information or advice would be greatly appreciated :thumbsup:
      "Information wants to be free"
      VOOT | RFM | Kraylix V3 | FiF Jr. | KI2 | UMK3 | E29 | E29| TOTD | DDR
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    • I've converted a Model 3 Step 1.0 and a Model 3 Step 1.5 and can confirm that for those to revisions the PALs are the same.

      I didn't have to move any of the jumpers on either conversion (Get Bass -> Virtua Fighter 3 TB and Virtua Striker 2 Ver. 98 -> Le Mans 24). The speed of your EPROMs match what I used.

      Brian.
    • New

      Well, I tried doing a FV2 conversion.

      I picked up a Virtua Striker 2 board that had already been converted to Harley Davidson, which was perfect because it came with most of the needed 41 eproms. Burned the MAME romset to the eproms, put the roms on the rom board and placed it in a working Model 2 Step 2.0 motherboard that had previously run Sega Rally 2 just fine.

      The problem is that the game locks up 50 seconds in to the game, every single time. Doesn't matter if it's running in attract or during game play. When it locks up the music plays until the point where it should loop and then it just sits there on a freezed screen. ROM test shows everything is OK, voltages are fine, the game runs perfect up until the freeze.

      Any ideas?

      EDIT: Nevermind, there's a security board:

      triplemoonstar.brinkster.net/theshed/default.asp?stockid=914

      What a waste of effort! :P

      The post was edited 1 time, last by nem ().

    • New

      Damn, I didn't realize FV2 used a security board. I think Andy Geezer can do security board conversions.

      I'm interested to see how this plays out because I've got a spare Model 3 ROM board and security board that I was planning on making into a FV2.
      "Information wants to be free"
      VOOT | RFM | Kraylix V3 | FiF Jr. | KI2 | UMK3 | E29 | E29| TOTD | DDR
      Follow my projects on Instagram: instagram.com/twistedchu

      Buy my 3D Printed Parts: bit-district.com