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Checkman PCB Mame Roms Help
#361532 - 12/21/16 12:08 PM
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Hey everyone
Need someone thats either cluey with reading z80 code or who may own a Checkman PCB
Basicly i own one but sadly the program roms were corrupt, i tried to use the sets in mame and couldnt get it to work but after a bit of mucking about i compiled all the roms into a single rom and got the game to boot but only after you coin up the game other wise it just sits on garbage other then that game starts and plays fine but sadly i cant get the sound pcb to work yet
this pcb is not the original checkman pcb i am using but a fully working galaxian bootleg pcb i used, the original pcb is just a bootleg galaxian pcb so i really dont understand why its doing this there are no mods cut tracks/wire links anywhere on the original pcb
Both pcbs match as in memory map ect but i think the roms i require are for it to work correctly are not dumped or been modified to run
Is anyone here smart with reading and understanding code that could help me out with this?
Cheers
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Re: Checkman PCB Mame Roms Help
[Re: mb1111]
#361538 - 12/21/16 03:02 PM
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> Hey everyone
>
> Need someone thats either cluey with reading z80 code or who may own a Checkman PCB
>
> Basicly i own one but sadly the program roms were corrupt, i tried to use the sets in
> mame and couldnt get it to work but after a bit of mucking about i compiled all the
> roms into a single rom and got the game to boot but only after you coin up the game
> other wise it just sits on garbage other then that game starts and plays fine but
> sadly i cant get the sound pcb to work yet
>
> this pcb is not the original checkman pcb i am using but a fully working galaxian
> bootleg pcb i used, the original pcb is just a bootleg galaxian pcb so i really dont
> understand why its doing this there are no mods cut tracks/wire links anywhere on the
> original pcb
>
> Both pcbs match as in memory map ect but i think the roms i require are for it to
> work correctly are not dumped or been modified to run
>
> Is anyone here smart with reading and understanding code that could help me out with
> this?
>
> Cheers
how corrupt were your original program roms? all of them corrupt? some of them corrupt?
if anybody is going to help you it will probably be neccessary to see those program roms, assuming they contain any valid data at all, in order to work out what differences might be needed.
checkman does have encryption, but if the alt set boots to the title screen that kinda suggests the encryption is the same
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Re: Checkman PCB Mame Roms Help
[Re: Haze]
#361540 - 12/21/16 03:57 PM
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sadly most of them read back pretty messed up and one didnt read at all reader was stating had damaged pins
i did try and match what i had with the non encrypion version but no good there either so the version i am using on the pcb at the moment is the non encrypion version which like i said i can coin it up and starts playing as normal but from first power on sits on garbage screen
if i could only work out why it just wont start correctly would be great but understanding how and what code does is not my field
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