Mar

Mr. Do!

Posted by Jeff Waldron Published in Mr. Do!

Description of game:

Jamma converted Rockola cabinet. I converted it to a Mr. Do cabinet because I don’t care much for Heavy Unit. It was a very well done conversion before, so it ended up being pretty clean when I was done. I chose Mr. Do since it was one of my favorite games of the past, and I had some good artwork for the cabinet.

Different games that this cabinet plays:

Wired as a Jamma cabinet. I use a Universal to Jamma converter to play Mr. Do, Ladybug, Mr. Do’s Castle. Can also play any vertical display Jamma game or other vertical game with appropriate Jamma adapter.

How I got it:

I got this game as part of a bulk buy in February 2003. They were in an old movie theater that went out of business. Game worked fine, but I planned to pull out the guts and turn this cabinet into a MAME cabinet. It is in great shape. It is a Rockola cabinet, but I am not sure which game. Their cabinets are pretty generic. Whoever converted this game over did a nice job with woodgrain laminate on the sides. I decided to convert it to a Mr. Do instead because I had a cabinet that was not in good shape.

Recent repairs:

Worked when I got it. Since I wanted a Mr. Do cabinet, I had to rotate the monitor to be vertical. It was very difficult to get it to fit properly. Had to experiment with different angles. Finally had to swap the guts of the monitor into a Sanyo vertical frame to get more clearance. That was pretty difficult. The cabinet was originally a vertical cabinet, but the ways it was modified made it too difficult to go back to the original setup. Installed a new Jamma harness. Also had to drill out the control panel to match a new control panel overlay I got from Eldorado Games on ebay. Took a few weeks to get complete, but you can see that it looks nice and was worth it. Then I made a few wiring conversion adapters for some of the games to meet the Jamma harness. Then came the problem. I read that Mr. Do rotates its display the wrong direction compared to other vertical games. To make the cabinet work, I would have to swap out the yoke wires on the monitor or rotate the monitor itself. I wanted to do something that would allow me to play other vertical games, so I had to come up with a simple way to change it when I changed games. Did some research on RGVAC and decided to try to make a switch box to swap the wires. Tried to make it so I could do it from the coin door. Turned out perfectly and I can swap the orientation by flipping a couple switches. Check out pics below.

Bought a Mr. Do Jamma adapter from Arcadeshop.com. Works great and now I can turn the sound amp on and off for other Universal games. Also traded my Yankee Do PCB for a real Mr. Do PCB.

Monitor and Inverter Switch:

Cabinet as purchased:

What it still needs:

Would love to get a set of sideart to put on the cabinet.

Final Thoughts:

Didn’t care for Heavy Unit. Glad I can play some great games in the cabinet anyway! Ironic that it was “Heavy Unit” since this is one of the heaviest game cabinets I’ve owned.