Genesis is driving me nuts. I had Genesis working. Cleaned it all up, and played a few games. In the middle of a game, it just ended the game. Everything works like it should as far as attract mode and lights. None of my switches work, including the test switch.

I did the ground updates, which fixed my sound issues, but not the switch issue. Here is I have checked/done so far:

Checked all the fuses = good.

Good 5 VDC on all the boards.

Fuses F 9-F 12 have no power to them. F 13-F 15 have power. If I jump from F 13 to F 12, I can play a game as far as all the solenoids including the flippers work. The game stays in attract mode.

I have bypassed the test switch, and coin switches, but no luck.

Cleaned all edge connectors, no change.

Swapped U 4 and U 5 on the Main board (Switch matrix and Display chips ((same)), no change. The display still worked, but none of the switches.

Any help would be appreciated. Thanks,

The Post Master

I did order some 7400's. Looks like I need to order some 7404's also.

Could it be Z15? That is the switch enable IC. I did order a couple of them, just in case. (7432's,)

Thanks for the input.

Well, I replaced Z14 and everything worked. I started to play one game, then things when stupid. During the first ball, it shut down everything, and went into test mode. Now, when I push the start button, it immediately goes into lamp test mode. I pulled the batteries, and left the machine unplugged for a day. Plug it back in, and it goes into lamp test when the start button is pressed. I pushed the reset button on the sound board, but it doesn't change a thing. One thing to note:

I checked all the dip switches. They are set the way I want. The strange thing is, I have it set for 1 credit per coin. When I played the first game, that is how the coin slots worked. Now they give 5 credits per coin, even though the dip switches are set to one.

Any input would be appreciated.

The Post Master

bump