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(Topic ID: 275118)

Problem with a bally boomarang


By Seedy

73 days ago



Topic Stats

  • 4 posts
  • 3 Pinsiders participating
  • Latest reply 66 days ago by Seedy
  • No one calls this topic a favorite

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#1 73 days ago

Was playing a game when lightning struck the power transformer outside house. Looking at it found bonus unit increment coil was fried (replaced). Various functions of machine still didn't work (flippers, top hole eject and a few others (got those working by cleaning a ton of relay contacts). The final problem is driving me crazy... whenever the 1000 point relay energizes it stays energized and the 1000 point score does not register. When I manually increment the 1000 pt. score wheel the relay de-energizes like it is suppose to. Can't figure out how when 1000 pts are scored why 1000 pt. score wheel won't respond. As an aside when i manually set some scores when i start a new game all score wheels reset to zero properly. Any advice would be greatly appreciated.

#2 73 days ago

Does it do it on all 4 players? ...If not perhaps a bad contact on the "player up unit disc"

Are the correct voltages being put out from the transformer?

#3 72 days ago

Inspect and diagnose this circuit with Alligator clip jumper wires
http://www.planetimming.com/Pinball/troubleshooting/EM%20Troubleshooting.pdf
http://www.pinrepair.com/em/index3.htm#features

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#4 66 days ago

Thanks to all for help. This has been a problem with a lesson in humility. checked xformer for proper voltages. All are good but worth checking since surge might have shorted some windings (I wouldn't have thought of that). The 1000 pt. re. contact off player up unit was the problem. Cleaned it several times and manually closing contacts looked like were making contact. Used a clip lead to short contact proved looks were deceiving and it needed a slight adjustment. All is good now Thank you all!

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