Arcade Collecting > Restorations & repair

Romsets for original arcade machines

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Greenman:
Hi all.

I want to get into burning my own eproms and was wondering if they are the same files as are used in mame?  Sorry for the neub question.  If not, where would I access the roms for the PCB boards I currently own?

Thanks.

PL1:

--- Quote from: Greenman on October 24, 2022, 05:44:26 pm ---I want to get into burning my own eproms and was wondering if they are the same files as are used in mame?

--- End quote ---
Yes, assuming that MAME has them confirmed as good dumps.

Here's an example of how to tell which ROM file goes with which IC on the PCB.

If you look in the "xybots.zip" file, there is a file named "136054-1101.5c".
- "136054-1101" is the part number.
- "5c" is the grid location on the PCB.

If you look at page 48 of the manual here, you see a drawing of the PCB.
- There are a series of numbers on the left/right and a series of letters on the top/bottom that form a layout grid.  These numbers and letters are also printed on the PCB.
- If you look where row 5 meets column c, you see a large IC labeled "136054-XX01" in the PCB drawing.
- Looking at the parts list on page 49, Designator 5C is Part No. "136054-1101" and the Description is "Integrated Circuit, EPROM, 2764-300".

You now know what ROM file to burn to a 2764-300 EPROM to replace the IC located at 5c on the Xybots PCB.   :cheers:




Scott

Greenman:
Thank you Scott.  If I could buy you a beer, I would.   :applaud:

Paul.

PL1:
Glad to assist.   :cheers:


Scott

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