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Bootleg Rygar PCB Canada

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  • Bootleg Rygar PCB Canada

    Hello everyone, it's great to be a part of the community! I have been scouring the web and this seems to be one of the best forums out there so I'll give it a shot. I am restoring my dad's old Rygar cabinet and I am having a few issues with the bootleg PCB that was in the cabinet. Game always played great but I left it on for a bit and now most of the main background images are missing (red background with the sun setting, waterfalls, etc.) and Rygar does not make his sound effect when he jumps, attacks, or dies. Everything else works great and there are no other real bugs. I went ahead and picked up a logic probe, an EPROM eraser and EPROM burner but I don't know how to use the probe to point me in the direction of the error. Should I order all new EPROMs and reburn the whole game? Please help! (Note: the power transformer in the cabinet looks to have swollen a bit and one of the smaller chips is soldered on and angle, not sure if this would cause these kinds of issues, pictures included)

  • #2
    First thing to do is always check the voltages at the board, confirm you are getting 5V at the PCB, not just at the PSU.

    Second thing I would do is to reseat the daughterboards. They are the small PCBs plugged into the main PCBs, usually they are rammed into standard PCB sockets which don't like the wider pins. They cause all sorts of issues due to oxide build up, but removing them and reinserting scrapes the oxide away and cures the bad contact.

    You may find your gfx issues disappear when you have reseated them. Be very careful to line up the pins correctly when you re-install them.

    The transformer and wonky chip won’t be causing your issues, both have been that way since the day it was made.
    Sic transit gloria Atari!

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    • #3
      Originally posted by Womble View Post
      First thing to do is always check the voltages at the board, confirm you are getting 5V at the PCB, not just at the PSU.

      Second thing I would do is to reseat the daughterboards. They are the small PCBs plugged into the main PCBs, usually they are rammed into standard PCB sockets which don't like the wider pins. They cause all sorts of issues due to oxide build up, but removing them and reinserting scrapes the oxide away and cures the bad contact.

      You may find your gfx issues disappear when you have reseated them. Be very careful to line up the pins correctly when you re-install them.

      The transformer and wonky chip won’t be causing your issues, both have been that way since the day it was made.
      Thank you so much sir, I will give this a try today and see what happens! I appreciate the response

      Comment

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