I started noticing that my Xenon game was making out of sequence sounds.... For instance it would do the "end of game" sound where it was flipping the match, at the end of each ball play but just for a second or two. Last night, my son and I dug into the game to fix my chattering slingshot issue, a few dead bulbs, and a rollover switch at the top that wasn't scoring.

Also dug into the drop target box, but I am opening another thread on that.....

So we put the game back together, and the pop bumpers no longer go "oh". (Xenon owners/players will know what I mean), they now "chime" like when a ball rolls over a rollover at the top of the playfield.

I am not sure how the sound system works on this game, as there are a few sounds that change vs. the action.

Any ideas where to start with this? My soundboard was repaired a while back, a new rom had to be burnt with the sounds.

Thanks in advance!!!!

Just the pop bumpers.

Failed to mention, it doesn't score properly either. Pops with a chime score 1000.

Here is the MPU board with a closeup of the lower left side.

100_3018_(resized).JPG