(Topic ID: 118446)

Flipper coil issue

By Stretch7

4 years ago

Topic Stats

  • 11 posts
  • 4 Pinsiders participating
  • Latest reply 4 years ago by Stretch7
  • Topic is favorited by 1 Pinsider


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flipper animation 2..gif

#1 4 years ago

It still is not working correctly...It is running on high power.
So here is what has happened since....I bought another coil just in case i got a bad one but still same issue....this what happens....
I have a normally closed end of stroke so when the flipper button is pushed it opens end of stroke but for some reason when its EOS opens there is no power to coil so plunger returns and closes and coil gets power again and this cycle repeats causing it to machine gun when flipper button pressed in.
This is how i have the coil wired Power to the thick wire, EOS and button to thick/thin wire and eos to other thick wire.
I have also tried wiring this is different ways and all to non work properly. I have also tried right to left and vice versa. I put and old coil in and whamo it works fine.

The old coils match the new ones as far as wiring and type.

Has anyone else replaced a Playmatic flipper coil and had issues?

#2 4 years ago

One side of EOS and flipper power will connect to the terminal with thin wire only. The other side of the EOS will connect to the terminal with both thin and thick wire.The ground(Negative) will connect to the thick wire terminal. Here is a animated diagram to explain. Slides are slowed down to view.

flipper animation 2..gif
#3 4 years ago

Yes this is exactly what i have....this wiring works fine with old coil but not with new replacement coils.
I have replaced with 1008-b coils but i have been told these are compatible with 1008-a coils that are labelled in manual...if anyone else can chime in on something different would be great. I only have 1 choice of a replacement....almost thinking of trying to convert and go with a dc Flipper and see if that works.

#4 4 years ago

Using a multi meter, make the following resistance (ohms) tests on the new coil.
(Disconnected from the playfield)

1. Thick wire terminal to thick/thin wire terminal
2. Thin wire to thick/ thin terminal

Post back the readings

#5 4 years ago

1=1 ohm
2= 6.5 ohms

#6 4 years ago

1 ohm sounds bad

#7 4 years ago

Just decided to check all four coils 2 new ones and 2 originals that work and they show 1 ohm

#8 4 years ago
Quoted from Stretch7:

Just decided to check all four coils 2 new ones and 2 originals that work and they show 1 ohm

Something isn't right there.
1 Ohm is essentially shorted.
Put a piece of paper between the EOS switches and remeassure.
Chris Hibler - CARGPB #31
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#9 4 years ago

This is with 2 coils not installed and 2 installed but I did open the eos to get proper readings
I even went over ohms with Steve at pbr and he says they are correct as well.

#11 4 years ago


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