Need eprom burned for The Punisher suicide battery fix

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Need eprom burned for The Punisher suicide battery fix

Hey all,

I'm trying to revive a dead Punisher board that has committed suicide. I don't have an eprom burner myself so I'm wondering if someone can burn a 27C020 with the unencrypted rom data for The Punisher. I don't have the eprom yet but if someone with a burner also has one I'd gladly pay the extra few bucks to cover the cost of the eprom in addition to your time. Thanks all.
 
Steph is the EPROM master .... :notworthy:

I have to agree. I've purchased from him before a few times and always a positive experience. Now we'll see if I need to get even more eprom's from him depending on the C board battery. ;) My meter is showing 3 volts from it, but being that this board has been messed with before someone may have tried to change it and lost the data. The other battery was replaced and it wasn't the cleanest soldering job either. My understanding is I should at least get the board to boot with this first mod, but I may have corrupt graphics and have to do the second mod and replace more of the eproms. Anyone with more experience on this that can confirm what I'm thinking please feel free to chime in. Thanks all and especially Steph for providing this service.
 
I was playing my Slammasters I modded myself earlier today (harder to revive than punisher). If you need any help with the modding let me know.
 
I was playing my Slammasters I modded myself earlier today (harder to revive than punisher). If you need any help with the modding let me know.

Thanks! Ironically enough I will be playing this Punisher pcb (hopefully) in my Slam Masters cabinet. I picked up one in one of those big blue Capcom cabs a few years ago and of course the board was dead as I expected. I ended up sending that out to be fixed, but I'm much more confident in my ability to do the mod.

DSCN0218.jpg
 
Just beware when phoenixing those CPS1 boards that they can be finicky on EPROM types.

AMD EPROMs that are -15, or 150ns in speed will give you random crashes. I've used Intel and other brands at 150ns successfully, but for AMD they seem to only work when 120ns or faster.

RJ
 
Well a bump for this thread to report some success. After doing the mod the game was fully working. Playing through the game it crashed on the last level with an address error and other random code that you can actually change by hitting the buttons or joysticks. I turned it off but it won't boot at all and still has the random game code on screen. Does this sound like the C board battery is likely dead now? Maybe what RJ said about the eprom speed? If it was the eprom speed issue, I would think it would come back up after a reset but I wouldn't know for sure.
 
Sounds like a bad or slow ROM.

Post what the EPROMs had written on them so we can see the manufacturer and speed.
 
Sounds like a bad or slow ROM.

Post what the EPROMs had written on them so we can see the manufacturer and speed.
I will PM Steph and ask. Just for grins, I fired it up again and now it's completely dead with nothing on screen at all.
 
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I believe the eprom was an Intel 27c020-150.

I've never had any problems with these.

The problem doesn't "seem" like an eprom problem
(...especially not if it worked at first),
but I'm perfectly happy to send a free replacement.

I'll even use a faster chip ( 100ns) just in case the board
has very sensitive timing.

(PM to SuperGunGuru)

Cheers,
Steph
 
I believe the eprom was an Intel 27c020-150.

I've never had any problems with these.

The problem doesn't "seem" like an eprom problem
(...especially not if it worked at first),
but I'm perfectly happy to send a free replacement.

I'll even use a faster chip ( 100ns) just in case the board
has very sensitive timing.

(PM to SuperGunGuru)

Cheers,
Steph
Thanks for the PM and reply here Steph. I appreciate you being willing to send another chip, but before you take time to do that I hope to figure out for sure that is or isn't the problem. Hopefully Channelmaniac will chime in and offer his thoughts based on this. The fact the board is totally dead again would seem, to me anyway, to indicate the C board battery is dead. Anyone know if the board charges the C battery when it's powered up or not? I would guess not especially since it died right in the middle of gameplay. I'll have to pull the cover and meter the battery again.
 
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Okay I did the obvious quick thing and checked the c board battery. I'm still putting out 3volts. I can take the pcb apart further to check my handy work again, but I highly doubt that's where the problem is. Hopefully it's just a simple thing and not something else crazy going on with the board.
 
I threw this thing in my Double Dragon cab just to see if it would give garbage again and it did. This time I noted a few words near the bottom. It seemed to rapidly flash between "Address Error" and "Illegal Inst." Sounds like something with the encryption is hanging it up again.
 
Okay I did the obvious quick thing and checked the c board battery. I'm still putting out 3volts.

Ok, I'll be the first to admit I don't fully understand the C-board fix,
but my understanding was that the suicide fix eprom was to "eliminate" the battery.

I know for sure on the CPS-2 boards,
that when you put the new eproms,
you must physically remove the battery.

I'm not sure how it works on the C-board,
but I thought the idea of the new eprom was
to bypass the security encryption which was previously kept alive by the battery.

If that's the case, then the battery is trying to de-encrypt data
that's no longer encrypted...

...but what do I know, I'm just an eprom guy ... ;-)

Cheers,
Steph
 
Ok, I'll be the first to admit I don't fully understand the C-board fix,
but my understanding was that the suicide fix eprom was to "eliminate" the battery.

I know for sure on the CPS-2 boards,
that when you put the new eproms,
you must physically remove the battery.

I'm not sure how it works on the C-board,
but I thought the idea of the new eprom was
to bypass the security encryption which was previously kept alive by the battery.

If that's the case, then the battery is trying to de-encrypt data
that's no longer encrypted...

...but what do I know, I'm just an eprom guy ... ;-)

Cheers,
Steph

Well the C board mod hasn't been done, but you are correct that the battery is taken out of the equation. The battery I did remove was the Q Sound as part of the mod that involved the new eprom. The other battery on the C board will also cause the board to die if it dies so my thought was that battery might have gone too. My meter at least says it still has the 3 volts so at least the C board mod shouldn't be necessary at the moment.
 
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Bump! At this point I would think it's either something with that eprom or something else on the board unrelated to the suicide batteries. I really appreciate Steph being willing to send another chip but as I probably said I'd hate to have him waste time if that's not where the problem is. I thought I also read someting about different versions of the game may not work with the fix on the dead battery website, but then again it did run for a while.
 
If you want to send it to me I'll try to get it working for you.
I appreciate the offer and I will definitely keep that in mind. :) It wasn't too bad removing the surface mount cap and resistor to do the mod, but I cringe thinking of trying to track down a problem not caused by the suicide batteries or the replaced eprom.
 
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