This is a Williams System 11, 9 and potentially Data East small portable LCD display that I created. It could be used as a bench display or a portable display for a technician. I am trying to gauge the interest. It's something I had always wanted and all attempts that I had read about were not successful. I worked on it for over a year. I have defined games for Sys 11 - Sys 11c, Sys9, and I included a strobe test utility. You navigate the menu to a compatible display. I have tested it on my bench and on all of the games at my house. I would like to sell one of my boards to someone that can test it on several games. It would also help fund purchasing additional boards to sell if there is interest. I think it's awesome and would save someone $ because they would not be required to purchase displays for all of these different variations of games. I need someone capable and trustworthy to test to confirm it works the same for them. I assume that it will since it does work on several different games/boards. Read the details in the link below and view the display on youtube. Check the links on youtube for additional examples.
http://pinballparts.x10host.com/lcd-pinball-display-decoder/
Matt