ms pac w/no daughterboard - how to convert to 4-1

TheShanMan

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I've got the 4-1/high score save adapter and I want to convert my ms pac to use it. However, it doesn't have a ms pac daughterboard (I am only now learning that mine is not a "true" ms pac). What exactly do I have to do to convert to the 4-1? I'm guessing it's a rom change only (aside from installing the adapter board)? Which roms do I need to change?
 
Off Topic: I think I know where an 80's Payphone is... At least they look like they are from the 80's.

On Topic: Depends on the board you have. There are many hacks that allow you to remove the daughter board from a Midway boardset to play MsPac but there are also a lot of bootleg boards that run MsPac. Can you take a picture of your board?

Matt
 
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I could post a higher resolution pic if you need it. Thanks!
 

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Its a factory board so unhacking it and installing the new kit shouldnt be too much of an issue. Doesnt the kit replace the daughter board and plug into the CPU socket? If its does then you may not have to unhack the board.

Matt
 
OK, sounds good. I'll just dump all the roms and compare to pac roms to see which roms need to be re-burned (in addition to the roms needed by 4-1). Thanks!
 
Thats a midway board running bootleg roms. To unhack you will need to fix some cut traces on the board and remove some jumpers. You wont be using any of those roms for a 4-1 mod. The 4-1 uses a single rom on row 6 and a single rom on row 5.
 
Is this hack documented anywhere so I know what needs to be changed? If you don't know where it's documented, what search terms would you suggest I use (does the hack have a name?) so I can find more info on it? If there are a bunch of different pac->mspac conversion hacks I don't want to get too bogged down with looking at info on hacks that are different from mine.

Thanks for the help so far guys!
 
Its out on the web somewhere, dont know where or what its called. I call it the 6 rom hack. Its easy to unhack, should be around 5 traces that are cut and are usually done on the bottom side of the board. You can leave the extra two sockets that were added on the board. Get the board working as a standard pac before starting on the 4-1 install.
 
Souzilla, yeah, that's what I'm doing. I have madrits' adapter.

Riptor, yeah, I was planning to get it working as a regular pac first. Thanks for the clues as to which hack to look for. Appreciate your help!
 
To just get it back to Pac-man you just need to replace the eproms on row 6 with the Pac eproms. You can leave the cut traces and wire wrap stuff alone.

Souzilla, yeah, that's what I'm doing. I have madrits' adapter.

Riptor, yeah, I was planning to get it working as a regular pac first. Thanks for the clues as to which hack to look for. Appreciate your help!
 
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