(Topic ID: 243595)

Gottlieb Victory


By KStroble

59 days ago



Topic Stats

  • 23 posts
  • 4 Pinsiders participating
  • Latest reply 40 days ago by KStroble
  • Topic is favorited by 2 Pinsiders

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#1 59 days ago

Please help! My Victory was blowing the kicker fuse after about 20 to 30 minutes of play and recently burned up the upper kicker coil. I've replaced it with a new coil (A-19300) but I'm getting nothing from it after the ribbon switch is activated. I purchased a new A8 driver board, installed it and it blew the transistor out immediately after I turned the power on ($40 dollars down the drain). Could this be a Rectifier Diode (1N5401G)that has gone bad? The diode was warm after this happened. Please help! We miss our family tournaments.

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#2 59 days ago

Is it possible when you replaced the coil, the diode on the coil was taken out prior to you replacing the pop bumper driver board ?

#3 59 days ago

That's a pic of the old coil, it has a new coil in it now, and still shows to be good using a Volt meter. Are you referring to the big diode in the picture or the small diode going across the coil leads?

#4 59 days ago

Coil diode on new coil installed. Did you install the pop bump brd at the same time as the new coil.?

#5 59 days ago

Check your work on the coil. Did you solder the wires to the correct terminals on the coil? Compare it with the other coils on the pop bumpers. You are looking for the banded side of the diode and any wire colors to guide you.

Also you can replace that transistor instead of buying a new board.

#6 59 days ago

I have not checked the small diode at coil, I replaced the coil about a month before the board.

I replaced the wires to the same sides they were on the original coil but I will check to see what side the diode bands are on.

#7 59 days ago
Quoted from KStroble:

I have not checked the small diode at coil, I replaced the coil about a month before the board.
I replaced the wires to the same sides they were on the original coil but I will check to see what side the diode bands are on.

Yes, the diode band is the important part

#8 58 days ago

Yep ground was on wrong side. Is this what caused the transistor to blow on the pop board? So what caused the original coil to melt down?

#9 58 days ago
Quoted from KStroble:

Yep ground was on wrong side. Is this what caused the transistor to blow on the pop board? So what caused the original coil to melt down?

Yes, reversed wires will knock out tge diode and possibly the transistor. The original board and or coil basically lived its life and when power last applied, took it out. Call it Electronic Fatigue.

#10 58 days ago

Great to know, thank you. You are referring to the small diode on the coil? Sorry, just want to be clear. Should I be cautious of the big diode (pictured) that's in line for the coil?

#11 58 days ago

Yes small diode. It would be goodd to check that big diode for peace of mind.

#12 58 days ago

The small diode on the coil is a 1N4004, very inexpensive.

#13 58 days ago

And the transistor is probably a TIP 102, but im not positive.

#14 58 days ago

Thank you for all the feedback. I'll let everyone know how it turns out.

#15 55 days ago

Turns out , I cooked the new coil too.

#16 55 days ago

did you destroy the coil or just the diode on the coil? do you know how to test a diode?

#17 55 days ago

Both are bad, coil is .2 ohms, should be 7.8 ohms. That's on the copper leads not the diode so no good.

#18 55 days ago

Just to make sure, try testing the coil with the diode cut off.

#19 54 days ago

Both of you are correct, coil is still good. Thanks to both of you. I'm learning a lot about this machine.

1 week later
#20 46 days ago

Success!! Although I figured out why there was a different coil, the A19300 coil is little weak and barely gets the ball up the ramp, sometimes after a couple of tries.

#21 40 days ago

Ok, the ball can't get up the ramp, I watched it go back and forth for over five minutes. Any ideas or suggestions?

#22 40 days ago

Which coil can't get up the ramp? The one on the right that goes to the upper play field? Whatever it is check the mechanism to make sure it is not a mechanical issue. Make sure the mech is aligned correctly and firmly attached. Check the play and function of the kicker.

#23 40 days ago

Its the top kicker coil. I put a A19300 coil back because it's what the machine manual says it uses. The coil that melted down was a SA3-23, which was in the machine when I got it. I'm assuming the SA3 is a hotter coil. Bu I did not solder the leads on the new coil, I used some spade terminals. Maybe that's the issue? I've even dropped the legs down to lower it in the back. That helped a little.

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