(Topic ID: 192746)

Lightning Display Issues


By GorfFan

2 years ago



Topic Stats

  • 3 posts
  • 2 Pinsiders participating
  • Latest reply 2 years ago by GorfFan
  • Topic is favorited by 1 Pinsider

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#1 2 years ago

Lightning pin power has been fixed to power supply, through transformer, to displays. The CPU is beeping 7 times with all displays except one. I've resoldered all pins on all displays, but the problem is:
Player 1 solid 7 in third space then 5 in 6th space of score board
Player 2 (top right score) has a solid 5 in space one.
Player 3 (bottom left) makes the CPU only beep 5 times, so it's defective.
Player 4 (bottom right) has a wavy, slightly unclear :3: in space two, but bottom part of "3" is missing.
Diagnotics and credit display has a wavy "17" in far right last 2 slots. The waviness to the letters are they alternate left and then right by the "1" is brighter and then the "7" gets nighter while the "1" gets dimmer.

Any suggestions on how to fix these issues, so I can run a diagnostic check on the game?

#2 2 years ago

You'll want to post the machine and/or boardset you're working with. Classic Bally/Stern?

Work on one display at at time, disconnect all others. That'll help isolate the issue to just the display you're working on. If you can get one fully working display then you know for sure any other displays with issues have a problem at the display itself and not at the MPU.

#3 2 years ago
Quoted from acebathound:

You'll want to post the machine and/or boardset you're working with. Classic Bally/Stern?
Work on one display at at time, disconnect all others. That'll help isolate the issue to just the display you're working on. If you can get one fully working display then you know for sure any other displays with issues have a problem at the display itself and not at the MPU.

I should have mentioned that this is what I tried; working on one at a time, but this is as far as I could get. I will work more at trying to get one fully functioning.

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