Many of Atari's games used GALs to control the logic for memory addressing, video, and sound. Unfortunately, most of the GALs on shipping Atari boards have the security fuse blown, meaning that if one goes bad, you'll have a tough time trying to make a replacement. Furthermore, since GALs are EEPROM based, they are subject to deterioration over time.
Luckily, some equipment does exist that can read these protected GALs. So, as a service to anyone out there who needs a replacement GAL to fix an Atari board, I've decided to set up this page where you can grab the necessary JEDEC files for any GALs you need to replace.
Disclaimer: Although these reads were taken from working boards, I have not programmed replacements for these to verify that the JEDEC files are accurate. If you have any successes or failures using these, let me know and I'll annotate the lists below.
Guardians of the 'Hood | Hydra | Moto Frenzy | Pit Fighter | Relief Pitcher | Road Riot 4WD | Shuuz | Skull & Crossbones | ThunderJaws
Guardians of the 'Hood
Main PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 3K 136092-0005 GAL16V8A Download Download -- Unknown 21L 136092-0006 GAL16V8A Download Download -- Unknown 15F 136092-0007 GAL16V8A Download Download -- Unknown 17J 136092-0008 GAL16V8A Download Download -- Unknown 6C 136092-0009 GAL16V8A Download Download -- Unknown 11S 136092-0011 GAL16V8A Download Download -- Unknown
Hydra
Main PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 15E 136079-1043 GAL16V8A Download Download -- Unknown 125K 136079-1044 GAL16V8A Download Download -- Unknown 40P 136079-1045 GAL16V8A Download Download -- Unknown 65D 136079-1046 GAL16V8A Download Download -- Unknown 40S 136079-1047 GAL16V8A Download Download -- Unknown 125F 136079-1048 GAL16V8A Download Download -- Unknown 120F 136079-1049 GAL16V8A Download Download -- Unknown 115F 136079-1050 GAL16V8A Download Download -- Unknown 105F 136079-1051 GAL16V8A Download Download -- Unknown 30N 136079-1052 GAL16V8A Download Download -- Unknown
Moto Frenzy
Main PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 14R 136094-0006A GAL16V8A Download Download -- Motion Objects 12L 136094-0007A GAL16V8A Download Download -- Playfield 17L 136094-0008A GAL16V8A Download Download -- Palette 7N 136094-0009A GAL16V8A Download Download -- Playfield 5N 136094-0010A GAL16V8A Download Download -- Video 5R 136094-0011B GAL16V8A Download Download -- Horizontal Sync 7R 136094-0012A GAL16V8A Download Download -- Vertical Sync 25D 136094-0013A GAL16V8A Download Download -- Addressing 22R 136094-0014A GAL16V8A Download Download -- Motion Objects 23S 136094-0015A GAL16V8A Download Download -- Motion Objects 23R 136094-0016A GAL16V8A Download Download -- Motion Objects 27D 136094-0017A GAL16V8A Download Download -- Addressing 25K 136094-0018A GAL16V8A Download Download -- Addressing 3N 136094-0019B GAL20V8A Download Download -- Motion Objects
Sound PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 17C 136085-1038 GAL16V8A Download Download -- Unknown 20C 136085-2046 GAL16V8A Download Download -- Unknown
Pit Fighter
Main PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 15E 136081-1043 GAL16V8A Download Download -- Unknown 40P 136079-1045 GAL16V8A Download Download -- Unknown 65D 136079-1046 GAL16V8A Download Download -- Unknown 40S 136079-1047 GAL16V8A Download Download -- Unknown 125F 136079-1048 GAL16V8A Download Download -- Unknown 120F 136079-1049 GAL16V8A Download Download -- Unknown 115F 136081-1050 GAL16V8A Download Download -- Unknown 105F 136081-1051 GAL16V8A Download Download -- Unknown 30N 136079-1052 GAL16V8A Download Download -- Unknown
Relief Pitcher
Main PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 15F 136093-0002 GAL16V8A Download Download -- Addressing 11R 136093-0003 GAL16V8A Download Download -- Video 5N 136093-0004 GAL16V8A Download Download -- Motion Objects 3F 136093-0005 GAL16V8A Download Download -- Palette 5F 136093-0006 GAL16V8A Download Download -- Palette
Upper PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 3E 136093-0008 GAL16V8A Download Download -- Unknown 8A 136093-0009 GAL16V8A Download Download -- Unknown 15A 136093-0010 GAL16V8A Download Download -- Unknown
Road Riot 4WD
Main PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 3K 136089-1005 GAL16V8A Download Download -- Unknown 21L 136089-1006 GAL16V8A Download Download -- Unknown 15F 136089-1007 GAL16V8A Download Download -- Unknown 17J 136089-1008 GAL16V8A Download Download -- Unknown 6C 136089-1009 GAL16V8A Download Download -- Unknown 11S 136089-2011 GAL16V8A Download Download -- Unknown
Sound PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 17C 136085-1038 GAL16V8A Download Download -- Unknown 20C 136085-2046 GAL16V8A Download Download -- Unknown
Shuuz
Main PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 55C 136083-1050 GAL16V8A Download Download -- Addressing 45E 136083-1051 GAL16V8A Download Download -- Audio 32L 136083-1052 GAL16V8A Download Download -- Video 85N 136083-1053 GAL16V8A Download Download -- Priority 97N 136083-1054 GAL16V8A Download Download -- Motion Objects
Skull & Crossbones
Main PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 10F 136072-1142 GAL16V8A Download Download -- Priority 110E 136072-1143 GAL16V8A Download Download -- Addressing
ThunderJaws
Main PCB:
Location Part No. Part Type JEDEC Equations Success? Used For 12/13E 136076-1070 GAL16V8A Download Download -- Addressing 13J 136076-1071 GAL16V8A Download Download -- Addressing 5/6N 136076-1072 GAL16V8A Download Download -- Alpha Banking 2H 136076-1073 GAL16V8A Download Download -- Motion Objects 3/4L 136076-2074 GAL16V8A Download Download -- Priority 2L 136076-1075 GAL20V8A Download Download -- Palette 1L 136076-1076 GAL20V8A Download Download -- Palette