saving options, area 51/max force duo

This fixes the volume issue too? How can we apply it to our sets?

yea it allows you to change the volume then save the settings.
I'll resend you a set of eproms. Im just trying other things right now to see if there is a way to fix the rom check too
 
aaaaaaaaaaaghhhhhhhhhhh....
So I went to burn a new set of roms for this with the code that I just had working and it isnt working.,.. so I put the set it that was working and they worked fine! so then I took the set that worked fine and dumped them and then reburned a new set, the new set doesnt work!!

BUT

I think I found out the difference.. The chips im using are 27c4001-10F1s, both the ones that work and the new ones. but the difference is the ones that work are old original eproms I pulled from the boardset and reimaged to the duo game. They are fatter and have different shaped windows.. So im wondering if its the speed of the chips that causing it? I reburned an old set with the code that has the checksum fix and they work as well, so so far the only ones that work are the ones that have old eproms that I recycled . The brand new eproms dont work even though they are the exact speed -10F1, something about them is different...

and when I say they dont work I mean, they give you the setting default eeprom value message, the game still plays fine with them.
 
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Ok I have erased and reburned feels like a hundred different EPROMs.
The only ones that do not give you the setting default eeprom settings message are ones that have the batch number B88AF so far
All of my original EPROMs from cojag boards have these.
So if your EPROMs are 27c4001-10F1 with batch number B88AF then you can send them to me to be reprogrammed
 
Holy hell....
Well today I decided to see if its maybe one of the four EPROMs that's causing the issue , I took a brand new set and and old set and replaced the old set one at a time and never got the damn message. Working like a champ with brand new EPROMs , so then I thought maybe it is the harddrive, so I made a brand new harddrive and 4 brand new EPROMs booted it up and it still works fine, BUT the free play settings where still there even though I used all new parts!!? So where are the settings stored? Maybe the PIC chip next to the EPROMs is the culprit? I tried 4 different boards today and around 40 different EPROMs and I can't get that "setting default EEPROM settings" message anymore...
Maybe I somehow reprogrammed something on the board itself? By swapping chips back and forth?
My other thought is maybe its the volume adjust.. Maybe you have to adjust the free play setting. Start the game, then go back and adjust the volume. ?
At this point I have no idea what to try since I can't get the problem to happen on any of my boards now with any combinations of new and old EPROMs or harddrives.
 
So I resolved this issue on my boardset. Turned out either my EEPROM was bad (the one that saves all the game settings) or the hack is very picky about the type of EEPROM used.

The one that I had in originally that DID NOT work was labeled as follows:

ImageUploadedByTapatalk1351819496.894654.jpg

The one that DOES work is this one:

ImageUploadedByTapatalk1351819670.573000.jpg

Anyone know a good source for the second chip? I need one to get my other boardset up and going 100%
 
So I resolved this issue on my boardset. Turned out either my EEPROM was bad (the one that saves all the game settings) or the hack is very picky about the type of EEPROM used.

The one that I had in originally that DID NOT work was labeled as follows:

View attachment 125027

The one that DOES work is this one:

View attachment 125028

Anyone know a good source for the second chip? I need one to get my other boardset up and going 100%

Can't see the first pic, but here's an AT28C16A
http://www.jameco.com/webapp/wcs/st...Id=10001&ddkey=http:StoreCatalogDrillDownView
 
Strange, uploaded both pics from my phone so I'm not sure why one looks terrible and the other looks ok. Here's the text from both chips:

First (doesn't work):

AT28C16
15PC
9702

Second (works):

AT28C16
15PC
9539

Thanks for the link :cheers:
 
Kevin
The only difference in those two chips is the date code (week 2 1997 vs week 39, 1995)
I'd guess the first chip is toast... try a new one :)
cheers
/Tim

Strange, uploaded both pics from my phone so I'm not sure why one looks terrible and the other looks ok. Here's the text from both chips:

First (doesn't work):

AT28C16
15PC
9702

Second (works):

AT28C16
15PC
9539

Thanks for the link :cheers:
 
See you learn something new every day ;) Ordering now.

What's strange is the chip worked fine with the original Maximum Force EPROMS but when I switched to the Duo upgrade it stopped working.
 
What's strange is the chip worked fine with the original Maximum Force EPROMS but when I switched to the Duo upgrade it stopped working.

When you switch back to the original Max Force EPROMs, does it work again?
 
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