ae 26-1200 coil

gustavas007

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I bought a WCS 94 and several of the ae 26-1200 coils don't work.

fuses look good, everything looks connected, is it the actual coils that I need to replace?

I decided to measure the ohms and they all came to 10.4, both working and non working coils... I think I read that they are supposed to be at 10.9


anyways, this is my first pinball, any help would be appreciated.


ohh and I held in the safety by the coin door so all the high power stuff should be working. just thought I would throw that out there to eliminate that as one of the possibilities.
 
I bought a WCS 94 and several of the ae 26-1200 coils don't work.

fuses look good, everything looks connected, is it the actual coils that I need to replace?

I decided to measure the ohms and they all came to 10.4, both working and non working coils... I think I read that they are supposed to be at 10.9


anyways, this is my first pinball, any help would be appreciated.


ohh and I held in the safety by the coin door so all the high power stuff should be working. just thought I would throw that out there to eliminate that as one of the possibilities.

First, a good coils guide is here - http://www.flippers.com/coil-resistance.html

Second, since your coils are reading 10.4 ohms (you were correct, they should be 10.9) they are not your problem.

Are all coils not working, only some? Do any of the non working ones have anything in common? Have you verified all voltages generated by the power supply are good? Fuses ok?

Give us a bit more to go on and we'll steer you in the right direction.
 
a couple of the coils are working, all the ones that are not working are all ae 26-1200's although there is one ae 26-1200 that is working.

the fuses are fine.


I don't know how to check the power supply voltage. I'm re-reading the manual again.
 
put it in test mode and I am not getting any power to the coils that are not working. do I trace the wire all the way back and make sure it's not broken anywhere?
 
Fuses look good ? does this mean you pulled them and checked with a meter.

Moving on, each coil is driven by a transistor on the power driver board. Each transistor has a metal tab on top of it.

Ground the metal tab briefly, ( jumper wire from ground to tab on transistor - don't hold it on )
if the coil fires, then from the transistor legs to and including the coil is good, then the problem is the transistor or back upstream from there.

If it doesn't fire, then from the transistor legs across the board, through the wiring through connectors and to other coils, and possibly the coil itself ( tiny wires from coil to the coil lugs ) you have a broken wire.

LTG :)
 
yep pulled and tested the fuses.

I got it fixed!!!

Loose wires plugging into the power board.... I looked through the manual and tracked all of the components that were not working to the same fuse, and also to the game group of wires plugging into the board, sure enough that group of wires were not plugged in. right place just not pushed in.

I feel a little silly that it took a few hours to find such an easy fix. but also really happy that it was a free fix.

$800 well spent for my WCS94

a few errors still to fix, but it plays nice, I need to buy another ball too, it only has 4 and it should have 5


Thanks for your help guys. I have learned a lot today.
 
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