(Topic ID: 203854)

No coils

By mr300ww

6 years ago


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  • 13 posts
  • 3 Pinsiders participating
  • Latest reply 6 years ago by GRUMPY
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#1 6 years ago

In my 79’ Genie machine, been having issues where the right flipper is triggering the game over relay, had a diode come off the upper right flipper but soldered it back on and now when I run through the self test none of the coils fire and I just replaced the power supply in the back box

#3 6 years ago

All the fuses are fine but I had no coils before I realized the diode was not there

#5 6 years ago

Will do thanks

#6 6 years ago

Also sometimes when I power it on, the number 70 shows up in the match section and the manual says it’s an upper playfield drop target, but it goes down and resets when I run the test sequence, any reason why this is happening or know how I can clear the code

#8 6 years ago

So the 5 amp slow blow fuse was shot so replaced it and it blew after powering it on 2 or 3 times

#10 6 years ago
Quoted from GRUMPY:

There are 2 of these bridge rectifiers in side the cabinet on the bottom. The one on the right is for solenoid power. Check for DC volts (red test lead) on the lead with 4 red wires, black test lead on the black wire diagonally across from the red wires. If no voltage then change meter to A/C volts and check the red/white wire and black/white wire for A/C volts. If you have A/C volts but no DC volts the bridge rectifier is bad and needs to be replaced. If you have no A/C volts then check the fuse with the red/white wire on it, it should be a 5 amp slow blow fuse.

Getting 0.3 DCV and 0.0 ACV

#11 6 years ago

This is my driver board

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#12 6 years ago

Here’s front and back

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