Gran Trak 20 - GT10 - Trak10 - Twin Racer - Formula K - Roms

electrotim

Member
Joined
Dec 4, 2010
Messages
112
Reaction score
10
Location
Georgia
Gran Trak 20 - GT10 - Trak10 - Twin Racer - Formula K - Roms

Need help finding the Gran Trak 20 and Formula K ROMs see attached track images

I have the following Roms
Trak 10 - Labeled 74186 - matches track on Trak 10 flyer
Twin Racer - Labeled 74187 - matches track on attached Twin Racer flyer
Tank - Labeled 74182
LeMans - Labeled 5837, 5838, and 5839

If you have a rom that has a different label or track please PM me
 

Attachments

  • arcade_atari_grantrak20_cab_1.jpg
    arcade_atari_grantrak20_cab_1.jpg
    59.2 KB · Views: 12
  • Gran-Trak-10.jpg
    Gran-Trak-10.jpg
    11.7 KB · Views: 11
  • 73-FormulaK-Kee.jpg
    73-FormulaK-Kee.jpg
    25.1 KB · Views: 10
  • 110033001.jpg
    110033001.jpg
    191.4 KB · Views: 10
I recently bought a GT20 cabinet but I haven't picked it up yet. It might take another month before i have the time. I don't know if I have what I need to dump the roms though.
 
No problem, I can dump the rom.
You have to be careful with Gran Trak 20 it has three rom sockets so that it
can use two different types of roms. Both use +5 and -12 volts but on different pins.
If you put rom in wrong socket it gets toasted.
 
I recently bought a GT20 cabinet but I haven't picked it up yet. It might take another month before i have the time. I don't know if I have what I need to dump the roms though.

Thanks, Please keep me updated.
 
Will do. Looks as if I won't be able to go and pick it up before January.

BTW, I live in Sweden so there will be some shipping times to consider if I can't find someone locally to help me dump them. I guess my programmer won't be able to read them.
 
Last edited:
Unfortunately I do not know of an EPROM programmer that can read these.
I built a special circuit that extracts data from the rom.
 
Back
Top Bottom