I'll need to see a high quality scan of the schematic from (for example) Staples ($2) or Kinkos ($6)

Sounds like player advance stepper unit needs to cleaned.

If the Player Reset relay doesn't activate when this happens, 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

Also, is this how clear your copy is? If not, please consider emailing me your copy.

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Hi Danovh +
looking at Your schematics (post-7) and reading the ipdb-manual I think Your pin handles stepping on players / balls other than I am used to (Williams 4-Player-Pins, Bally Pins like (example) Amigo).
My theory is: The Switch Score-Motor-10-B is adjusted tight - sometimes not opening. So the Player-Advance-Relay stays pulling too long. The Score-Motor - look here http://www.pinwiki.com/wiki/index.php?title=EM_Repair#Bally_Score_Motor

Want to do a test (?) - hook on an oldfashioned 110VAC bedroom light as shown in the JPG - then play a couple of games - see how the bedroom light behaves "in normal play" --- and the question is: When the fault shows up - does the bedroom light behave "other" ? Greetings Rolf

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Did you read the links I provided?

Hi Danovh
I do not know if I understand Your post-1 correct --- "On a 1, 2 or 3 player game any 1 ball will run through all 4 players then play the rest normally."
Please give an example, lets say You start for a ONE-Player-Game - is the ball kicked-out as "Player-1-Ball-1" ? You then play the ball, make points, loose the ball - do You then get "Player-2-Ball-1" and You (faulty) play Player-2-Ball-1, loose the ball - do You then get "Player-3-Ball-1" and You (faulty) play Player-3-Ball-1, loose the ball - do You then get "Player-4-Ball-1" and You (faulty) play Player-4-Ball-1, loose the ball - do You then get "Player-1-Ball-2" and You play Player-1-Ball-2, loose the ball - do You then get "Player-1-Ball-3" etc. Greetings Rolf

If you'd like to try a phone call, send me your cell # in a private message.

Hi Danovh
thanks for post-16 (clarification). I did read something else in Your post-1. I join HowardR - here first about troubleshooting: Look at Your Player-Unit - see wire-91-2-Gray-Red (for Player-1) soldered-on (?), see wire-56-2-White-Brown (for Player-2) soldered-on (?), see wire-53-2-White-Yellow (for Player-3) soldered-on (?), see wire-75-8-Orange-White (for Player-4) soldered-on (?) TRUELY soldered-on ? Look-out on the Coin-Unit for this wire-color-75-8-Orange-White soldered-on - TRUELY soldered-on ? Look out on the swiches on the Ball-Return-Relay for this wire-color-75-8-Orange-White soldered-on - TRUELY soldered-on ? See in the JPG my red question marks - in some way these three places are connected with this wire-color-75-8-Orange-White soldered-on - (TRUELY soldered-on ?)
Some Theory - You made the Bedroom-Lamp-Test-Light - hook it on at the Coil on the PLAYER-RESET-RELAY - play some games and You will notice a difference "Game plays correct versus Game plays and the fault hows up". Lets line up four Players in a line - a nice line. Lets line up three players in a line - a bit shorter the line is, but still a nice line. Lets line up two players in a line - shorter the line is, but still a line. Please accept my definition - I line up one player in a line and call this a line. Well when it comes to stepping - every time the LAST*** Player in the line looses the ball: The Ball-Count-Unit must be stepped up AND the Player-Unit must be resetted and the Player-Unit is made to reset by the pulling-in of the Player-Reset-Relay - and this pulling-in does not work properly - I believe wire-color-75-8-Orange-White is somewhere broken-off, stays in place - sometimes - a bit of shaking, vibration - the broken-off end of the wire moves a bit - no connection. Greetings Rolf
P.S.: Last*** Player - stepping through the players and balls is much easyer to implement when the manufacturers (Williams and Bally) treated a One-Player-Game as a Multiplayer-Game consisting of one player making a line - so always when the last player in the line looses the ball in play then comes the stepping on the ball (up) and Player (resetting).

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