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Clear cartridge - pictures

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Here’s some pictures of the clear cartridge.  The upper case is marked with SKU 1015919.  The lower part of the case is marked with 1015918.  The cartridge board appears to be a four GROM and one ROM.  The GROMs are unmarked, -20A, -21A, 2022, and blank.  The ROM or RAM appears to be an AMI with a date code of 7940SAJ.  Part number 1501392-9.  The TI PCB is 1015921-2, Rev B.   No results show up for any of these ICs.

 

Let’s crowd source check the pin outs here - I can help with continuity.  Since this is 1979, I’m not making any assumptions on what this is and how it’s wired.

6ED046FB-5AFD-4E39-94E3-6E8914F5663F.jpeg

2C3C6C43-3707-414E-A5A9-9F0A9FCED6DE.jpeg

D5B9EFF2-1BE6-4EB9-AA8A-7587FCD25B45.jpeg

7EBF3C8C-1AAD-4E45-A7E3-F5A36F4977B1.jpeg

C5BF4281-4E2F-403E-957E-DCE4168948C0.jpeg

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