(Topic ID: 274632)

Grand Prix not scoring

By xddanx

3 years ago



Topic Stats

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

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#1 3 years ago

New game in, starts no problem and hear the reels reset. Problem is no switch registers any points, after a few test hits it sounds like one of the chime switches lock in. Where should i start troubleshooting? Thanks.

#2 3 years ago
Quoted from xddanx:

it sounds like one of the chime switches lock in

Find out if that's happening because most coils in an EM pinball will self destruct under constant power

#3 3 years ago

I fixed the chime and moved on to the point relays. If I tap a 10 point switch the 10 point relay fires and resets but no movement on score reel. With the 100, 1000 and 10000 if one of the switches on the playield is hit causes the corresponding relay to fire and lock on, what would cause this( no score reel movement)?

#4 3 years ago

Now when a relay is locked on i can go to the the reel and if i jump the switch at this point, the reel turns and relay resets. Does this mean the switch needs to be cleaned or adjusted? Or am i on the wrong track since this is happening to every reel?

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#5 3 years ago
Quoted from xddanx:

With the 100, 1000 and 10000 if one of the switches on the playield is hit causes the corresponding relay to fire and lock on,

Quoted from HowardR:

most coils in an EM pinball will self destruct under constant power

Quoted from xddanx:

If I tap a 10 point switch the 10 point relay fires and resets but no movement on score reel

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

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