Got my JJP POTC-CE Friday. There are two things I noticed that I thought I would ask you guys about.

The first thing is that the map disk isn't level. Its going to wear like hell if i dont get it level with the hole and the ridge gets the ball stuck sometimes. I looked at the mechanism and it wasnt apparent to me that there were any adjustments for leveling.

The second issue is that the instructions to the topper dont compute. I cant find power connectors for both the back glass led strip and the topper. What am i missing here? Was there a y cable shipped with the topper that i didnt get or should I be routing it from somewhere else?

Thanks for any advice.

In addition to the wire that goes to the led strip mounted on the CPU cover? Thanks!

Awesome, worked great, many thanks.

JJP POTC CE Topper

I am a huge fan of JJP machines and I cant see that changing because they make the good stuff. The topper noise was a big disappointment for me, and for the last three months I haven't been running it at all, but I have a pinball party at the house soon and I want to show it off. So, I spent some time looking at the issue and I managed a pretty good fix that I thought I would share. Its not perfect, but it worked for me when all the other solutions that I read here had no impact. Just as a side note I did call JJP tech support about this. While they were very polite, they provided no helpful information.

THE PROBLEM:
- It's not contact noise. Lift the back end of the ship off the cam and the noise is reduced. Put your finger on the cam and the noise comes back.
- It's not lubrication, however lubrication could help ever so slightly.
- IT IS the torque placed on the crappy, undersized, incorrectly supplied and incorrectly geared motor. The target torque and RPM were apparently not a part of the motor / gearing selection process. Additionally, the motor is just cheap and noisy. I will eventually will replace it with a good motor but for now the steps below help a lot.

THINGS YOU CAN DO TO HELP:
- This is all about reducing the torque placed on the motor at the target RPM.
- First, remove the black spring that clamps the ship to the cam. This was the single largest noise reduction step that I took. The spring isn't needed anyway, as gravity keeps the keel in place. I suppose it could become an issue if you run the motor fast.
- Second, loosen the screws on the rear set of waves. You don't need to loosen them much, just enough so that the nylon bearings are not tightly clamped to the wave plastic. This was the second largest impact on noise reduction.
- Third. You can add some lubricant that is nylon / plastic safe if you like. I did, but I'm not 100 percent positive that it helped. It might have been wishful thinking.

I hope this helps someone. There is still noise, but at volume 18 it is masked pretty well.

I absolutely will. It might be a few weeks before I get too it, or i could get to it tomorrow....