(Topic ID: 244706)

Credit / Ball in Play Display Showing All Zeros


By pindude80

5 months ago



Topic Stats

  • 4 posts
  • 2 Pinsiders participating
  • Latest reply 5 months ago by pindude80
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#1 5 months ago

The display on my HG that is supposed to show the credits and ball in play is all zeros. I swapped it with the player 4 display and am getting the same results. I put the game in test mode and it doesn't count up numbers like the other displays, just stays at zero. I did a little searching and found a thread where a guy had a similar problem and they told him to look at I think it was J1 on the MPU board. He jiggled his around and got it to work but I had reset the mpu connectors the other day but it didn't change anything. Should I change out the crimp contacts on the connector for the display next?

#2 5 months ago

Check/replace the crimp at pin 24 of J1 at the MPU board and the crimp at pin 15 at that display connector - this is a red-black wire and is the display strobe signal for that Credit/Ball In Play display.

#3 5 months ago
Quoted from Quench:

Check/replace the crimp at pin 24 of J1 at the MPU board and the crimp at pin 15 at that display connector - this is a red-black wire and is the display strobe signal for that Credit/Ball In Play display.

Ok, will do and I will report the results when I get a chance to replace the contacts. Thanks!

#4 5 months ago

Quench, you never fail to impress. I replaced all of the crimps on J1 a couple weeks ago but the header pins still need to be replaced so I thought that could be part of the problem. At first I thought this J1 was a 25 pin connector because someone wrote on the board with a sharpie marker over the pin numbers so I had checked the 2nd from bottom thinking it was 24 and it looked good. I replaced crimp 15 on the display, same thing. I went back to J1, realized it was a 28 pin connector, pulled the real pin 24 contact and sure enough the springed contact got smashed somehow. I replaced it and my display was showing the right info instead of zeros!

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