There can be a lot of things that can cause this. As gutz has stated it is a Pinbot board, but I think it can work in your game. I think you have more then one issue going on here.

This can be a display board or a CPU board issue, you would need to use a logic probe to test. Either way it would require that a chip be replaced. I'm not sure if your ready for that.

This is a new replacement power supply board. The display board is located on the back of the displays.

There was an early version too which is very similar to this board.

The Williams sticker in the corner has game #549 on it. Game #549 is Pinbot. Your CPU is from a Pinbot too.

If you want to buy a 20.00 logic probe I can walk you thru testing to determine the issue.

Sound issues are one of hardest to troubleshoot, unless you have experience. I can think of a least a dozen reasons for the sound problems, you are new to pinball but do you have any electronics experience?

Good, then get a DMM and a logic probe. We can find out why your displays are acting up.

I have an F-14 at present and if you want you can send me the sound board and I will test it in my game. This will reduce the number of possible problems in half.