Edcon
New member
I am new to the forum and looking for help with repairing my Williams Defender game.
Everything starts up fine, initial test indicates Ram ok, and then it defaults or goes to a screen that says the following:
01 ???? coins left
Press advance to step through test
Press high score reset to make change
The problem is when I press the advance or any of the three buttons nothing happens. I suspect I have a bad switch and or a problem with the main CPU board and Rom board? I am going to start with replacing the three button switch but have not had any luck locating one for sale. Any help is appreciated.
Everything starts up fine, initial test indicates Ram ok, and then it defaults or goes to a screen that says the following:
01 ???? coins left
Press advance to step through test
Press high score reset to make change
The problem is when I press the advance or any of the three buttons nothing happens. I suspect I have a bad switch and or a problem with the main CPU board and Rom board? I am going to start with replacing the three button switch but have not had any luck locating one for sale. Any help is appreciated.