If this popped up with the LEDs, you might remove them and try regular bulbs and see if you gain ground.

The ones that are out -open circuit - look for broken wire(s)

LTG : )

I had a few lights out in the middle section(Fuel-Saucer-Weapons) and all those bulbs on that large bulb board, solder points were cracked/loose on the male molex pins.

edit-I noticed some no-ghost bulbs from PBL said they wont work in P2K.....

LEDs and this game do not get along well.

I put LEDs just in the saucers to see what it looked like, and the test screen will show them as burnt out every single time. Regular bulbs show working, LEDs show not working whether they are or not.

There is also a lot of programmed fade in this game. LEDs are bad at this.

To the OP. try reverting back to incandescent bulbs. If your problem disappears. At least then you'll have the peace of mind to know it is the LEDs causing your woes.

The LEDs don't draw enough power so the game doesn't think they are on.

LTG : )

This is important for any board with lights, more especially P2K. Vibration and gravity is real hard on the connector pins. Reflowing the solder on the pins the connector plugs onto fixes things nicely.

LTG : )

Yes, my issue was the large (12?)wire molex female/male connection to the bulb board, not each individual socket, but I would think those can get damaged as well.

I think this game has issues with doing continuity tests on LED's.

I had an entire row go out and it was a loose solder leg on the main lamp board. Took a bit to find that was the source as the problem was intermittent.