Colecovision Speed Boost Test Machine w/Breadboard

This is my Colecovision Speed Boost Test Machine w/Breadboard so I can easily swap crystals out. This machine has some issues.

1) No player 2 port?

2) Graphics are a bit garbled when playing games.

Mods on this machine:

1) Power Switch Mod (made the machine go from "broken" to working....still has garbled graphics a bit though)

2) DIY AV mod so I could test with and without the RF

3) I guess easy Crystal change Mod? More for me to just test.