(Topic ID: 234671)

Scared Stiff Check opto trough 12v and wiring


By mpdpvdpin

1 year ago



Topic Stats

  • 2 posts
  • 2 Pinsiders participating
  • Latest reply 10 months ago by hotwyl
  • No one calls this topic a favorite

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#1 1 year ago

Hey all! Im having some difficulty resolving an issue with Scared Stiff. She started spitting multiple balls into play and when i reboot i get the “check opto trough, 12v and wiring” prompt

Here is what ive done so far:

ive reseated all connectors: nothing changed

ive had the mpu board and underplayfield opto board proffessionaly checked: no issue

ive replaced opto transmitter and reciever trough boards: problem persists

ive checked the wiring for breaks: i see nothing

More info:

all trough optos switches show filled in test with the exception of the ball jam opto

game will not start until i lift the playfield to trigger ball jam opto and then it proceeds to spit out all balls two or three times, subsides andthen a game begins. Typically first ball will run fine with no extra balls being thrown into play Ball two will start kicking balls out randomly.

I have the 12v daughter board installed to remedy the random shut down at stiff o meter completion. Led on board is showing a clean 12v

Am I missing something? This is driving me nuts.

Thanks in advance for any and all suggestions!

- matt

2 months later
#2 10 months ago

I am having the exact same issues with mine, hopefully some one will chime in that may have had the same problem that can offer some advice.

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