I got my 3902 board, MM2 and new game.
![Mail](http://newlifegames.net/nlg/Smileys/default/mail_2.gif)
This is for my Game King 3802.
I installed the new board, game chips and key 17 and turned on.
Screen turned purple, then I turned off and replaced key 17 with base chip and turned on.
Screen alternated colors for a couple of minutes and then came to menu.
I configured the game, closed the door and got ...
COIN-OUT JAM
COIN-IN JAM
METERS DISCONNECTED
OPERATION VERIFICATION REQUIRED
Yikes!
![hissy fit](http://newlifegames.net/nlg/Smileys/default/hissyfit.gif)
Did I do something wrong?
![no](http://newlifegames.net/nlg/Smileys/default/no.gif)
Should I have used key 40?
![no](http://newlifegames.net/nlg/Smileys/default/no.gif)
Is the board bad?
![bawling](http://newlifegames.net/nlg/Smileys/default/bawling.gif)
Will it work with a 3802 backplane motherboard?
![Scratch Head](http://newlifegames.net/nlg/Smileys/default/Scratch-Head.gif)
Once again, I am at your humble mercy for help!!!
![Help](http://newlifegames.net/nlg/Smileys/default/EmoticonHelp4.gif)
ADD: Key 22 solved it! Thanks everyone! :-)