Try different balls as if your using Silverjet they do not work with some magnets

Is the arm going over the planet to pick them up and not getting them?

Or is it not even moving over the planet to pick them up?

Is it aligned properly ?

Don't forget that if you are testing this out in the service menu (unload globe in service menu) that you need to have your coin door switch depressed, as it won't give power to the coils with it open and the arm will not pick up balls. It sounds silly, but I have done that before

Does the coil have power? Could be broken wires. Check continuity.

I would test the magnet with a paperclip, but I would test it during gameplay. Just trigger the mode manually when the glass is off. It's what I did. If it can't attract a paperclip and the coil is getting power then you know it's the coil. Others probably know better than I do, but I'm not sure it the globe unload test actually powers up the magnet or if it is just for alignment. I never checked.

Also, when I got my Dredd, the bolt that picks up the ball was installed upside down. The bolt head was on top and the nut made contact with the ball. I reversed it since the bolt head is concave and makes better surface contact (a ring instead of a single point) than the end of the bolt. This isn't the problem you're having but thought I would share it anyway.

I had the same problem after putting LEDs in the game, I had forgot to plug in a connector I took off a board under the playfield. Plugged it back in after wasting time trying other solutions and it worked fine. I felt pretty dumb once I found the solution... So look under the PF and make sure everything is hooked up like it should be

For reasons I can't figure out, my machine is a little flaky picking up the ball in the test mode, but works like a champ during an actual game, so I would also recommend trying it in a game as amiga500 noted.

Is the globe actually stopping when the globe gets to a pick-up position for the arm? The magnet only gets energized when the software senses that the planet is at a pickup position, which is sensed by switches 61 and 77.

Also, I assume you have the stock planet ring with slots (instead of the Deadworld mod ring with holes, which does make ball pick-up a little tougher).

Does the globe stop for the arm to pick it up? Or does it keep spinning and never stop?

Deadworld Opto not working?

The planet should stop when one of the planet holes/slots is under the magnet. If it is not, the globe optos are not working correctly.

Go to the spinning globe test (T14). Are both optos switching as the ring hole/slot passes under the magnet? If not, check that the interrupter slots are passing through the opto. When I first got my machine, the interrupter disc had slid up and was leaving the opto always open (not interrupted, making the globe spin without stopping). All I had to do was loosen it and slide it down.

Glad you got it working again.. Great game. JD>