Bad Rom Question

dyno

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I have a Ring King that will play but the graphics are messed up. on test mode it show bad rom but doesn't specify which rom it is. My question is, how do I figure out which rom it is? I bought the cabinet to convert to a Renegade but I would still like to get the Ring King board working.
 
I actually have my own burner, I have a a bp microsystems ep 1140 burner. The game is actually king of boxer which accoring to klov is the same as ring king.
 
Not of much help, but I have a King of Boxer PCB as well that is having the same graphics issues. If you end up burning replacement character roms, I might be interested in purchasing one from you :)

Good luck getting it going
 
I actaully haven't used my burner yet since I got it not to long ago, could you give me a quick run down of the steps to do that.

Riptor can probably go into much greater detail, but basically what you'll need to do is dump each of your roms and use mame's utilities to compare your dumped roms with known good roms.
The following will compare known good roms to your dumped roms:
romcmp <directory|zipfile> [<dir2|zipfile2>]

(romcmp.exe should be in your mame directory)
 
You dont need to use the mame utility, the burner can do it in a few clicks. Load the rom from the mame set into your burner software. Install the chip from your board and click verify. Im not familiar with your burner or its software but they all work pretty much the same except for the old dos ones.
 
Awesome! Thanks Riptor, that sounds pretty straight forward. I probably won't get to it for a few days, just to busy but I will let you guys know how it goes.
 
Its not hard at all. Its mostly a matter of finding a good set of rom dumps to compare to. I have a complete set of mame roms that I use.
 
If I did it right my burner is showing that video roms 4,5,and 8 are bad, as long as the roms I used to compare them to were good. The bad eproms are 2764, should the replacement ones be 2764 or can I use a different eprom if I want to. The reason I ask is that I have some 27256 blank eproms.
 
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If I did it right my burner is showing that video roms 4,5,and 8 are bad, as long as the roms I used to compare them to were good. The bad eproms are 2764, should the replacement ones be 2764 or can I use a different eprom if I want to. The reason I ask is that I have some 27256 blank eproms.

I get bad rom errors/crc when I check a 2764 an don't change my software from 2732a.

Make sure that you are selecting the right device BEFORE you verify. I have a bootleg board that has 3-4 different eproms and at least once I forgot to change the device. That will give you a bad checksum.
 
I get bad rom errors/crc when I check a 2764 an don't change my software from 2732a.

Make sure that you are selecting the right device BEFORE you verify. I have a bootleg board that has 3-4 different eproms and at least once I forgot to change the device. That will give you a bad checksum.

The "A" version should read the same, it just programs at a different voltage.

You must use the same type eprom, a 27256 will not work.
 
The programmer has a whole list of eproms and I have chosen the right one, I some boards that aren't working so I will see if they have any 2764 eproms I can pluck off there and erase. My programmer has the option to compare and verify, I did both and both came up that the eproms were bad when compared to the mame roms.
 
The programmer has a whole list of eproms and I have chosen the right one, I some boards that aren't working so I will see if they have any 2764 eproms I can pluck off there and erase. My programmer has the option to compare and verify, I did both and both came up that the eproms were bad when compared to the mame roms.

Verified both in binary format etc. If so, then you probably have some bad roms.
 
Where is a good place to get mame roms from? Should the roms for Kng of Boxer and ring kng be the same since they are the same game or could they be different?
 
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