(Topic ID: 184499)

Captain Fantastic - Flipper Coil Is Always Powered


By Skippy2904

2 years ago



Topic Stats

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

You

#1 2 years ago

I have just finished re-building the flippers on this new to me machine, including new coils on all 4 flippers.

Before I started the re-build, I checked that all coils were working, including the flippers. I tested all playfield functions - rollovers, slingshots, pop bumpers etc. All were working as was the scoring.

Post flipper coil replacement, on powering up all is Ok. GI illumination works.

When I 'start' a game, the score reels reset, credit reel subtracts 1, and the lower right flipper coil activates / flips once, then again, but stays on causing the coil to heat up quickly. The EOS switch is set correctly, so it should swap to reduced voltage. The flipper button switch is open, so not triggering the flipper.

I re-wired the coil the same way as it was before. I did have to replace one of the leaves in the double action EOS as the one connected to the middle terminal of the coil had broken off the end and the fish paper was broken. Replaced the fish paper too.

It seems to me that 50v is somehow finding its way to this flipper. Trouble is, I do not know where from! This is my first EM

I do not think the coil is dud as it needs a power source. Checked obvious things - shorted wires, other coils / switches closed.

Thoughts / suggestions would be appreciated.

#2 2 years ago

I would take a look at your work where you replaced the blade. Compare to a working one. If it worked before you touched it, good chance something went wrong there. Double check your wiring also.

#3 2 years ago
Quoted from Cash_Riprock:

I would take a look at your work where you replaced the blade. Compare to a working one. If it worked before you touched it, good chance something went wrong there. Double check your wiring also.

However, even if the end-of-stroke switch was shorted to itself, it should not have any effect, it would just provide a very powerful hold on the flipper that would eventually burn up the coil but would NOT do anything if the flipper button was not held. Meaning, the power source must be coming from somewhere. (the entire end-of-stroke switch, meaning both sides/blades, is without power when the flipper button is not held - a fault only in that wiring would not be the source of this kind of problem unless it was shorted against a 50v line)

#4 2 years ago

Just thought to add that it is only the lower right flipper that seems to be powers red all the time. The upper right flipper is not.

The wiring all looks to be ok, the same as it was before.

Obviously, I am powering the machine off quickly so as not to burn out the new coil. When I switch back on, the lower right flipper flips once, as if there is some power being stored and released, like a capacitor would discharge. It is a puzzle.

#5 2 years ago
Quoted from Skippy2904:

it is only the lower right flipper that seems to be powers red all the time. The upper right flipper is not.

Does the upper right Flipper energize and seem to work okay when pressing in the right Flipper button?
Maybe you can take a pic of the lower right flipper's wiring.. (T)

#6 2 years ago
Quoted from Skippy2904:

Just thought to add that it is only the lower right flipper that seems to be powers red all the time. The upper right flipper is not.
The wiring all looks to be ok, the same as it was before.
Obviously, I am powering the machine off quickly so as not to burn out the new coil. When I switch back on, the lower right flipper flips once, as if there is some power being stored and released, like a capacitor would discharge. It is a puzzle.

Checked the EOS switch incase it was shorting the low voltage to the 50v. Made no difference.

Then tried the original coil back on the flipper, and, hey presto, it worked normally. Must be a dud coil. 1 out of 4 as I replaced all 4 off them.

Onto the next issue, the 10's score reel is constantly live. My guess is a switch is closed all the time.

Thanks for your help guys. Appreciate it.

#7 2 years ago

Use the games schematic diagram to verify the wiring to the Flipper coil. If correct ( it probably isn't) then determine why voltage is present when it shouldn't be.

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