Area 51 / Maximum Force Upgrade Problems

K3V

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The background:

I picked up a dedicated Maximum Force cabinet and wanted to upgrade it to an Area 51/Max Force duo. The original Max Force board/HD work fine. Purchased an untested dual-board A51 PCB and created my own HD from the MAME CHD file. Tested that and it worked fine as well.

I then purchased one of these upgrade kits from Arcade Services on eBay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=350507002544

I bought it without the hard drive, though, figuring I could save a few dollars and create my own so I did. Here's what's happening now:

1 - During Maximum Force gameplay, when a "bullet" hits the screen and I take damage from the enemies, the screen displays garbage instead of the "broken glass" graphic. Area 51 displays this properly.

2 - The P1 gun works sporadically - some hits will fire and register, but most of the time when you pull the trigger nothing happens.

The board/guns/cabinet worked 100% before I swapped the EPROMS out and installed the new hard drive. Also, if I swap it back to my original solo Maximum Force board/HD everything works fine.

Here's iPad video of what's happening:



Any ideas?
 
Did you run the self test, and check the +5V? Some boards like it high, others like it low... but they always seem picky.

DogP
 
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