Building a Halcyon cartridge reader

 Using the Thayer's Quest arcade schematics and the Thayer's Quest arcade 'cartridge', I made a simple PCB adapter so that the cartridge could be read in an EPROM reader.

First test was the arcade 'cartridge' to make sure I didn't damage anything.

After that worked, I tried the actual Thayer's Quest Halcyon cartridge.

Conclusion?  It works!

Bega's Battle - Sync Generator Replacement - Testing with Super Don NTSC decoder

 

I don't have a Data East chroma PCB so I decided to try rigging up a Super Don NTSC decoder.  The colors are a little off, but it works well enough for testing!