(Topic ID: 261291)

Gottlieb Soccer no 25V on transformer

By Peruman

4 years ago


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  • 13 posts
  • 4 Pinsiders participating
  • Latest reply 4 years ago by Peruman
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#1 4 years ago

Started working on getting a Gottlieb Soccer to work again. First I checked all the fuses, all are good. Next I checked the 6V and 25V coming out of the transformer.

The white wire coming out of the transformer reads 5.7V and both the fuses read that.

When I check the red wire which is supposed to carry 25V, I’m only seeing 5.5V. Same thing if I check the terminal labeled HIGH on the transformer. I know I’ve seen a similar question on the forum recently that transformers are hard to damage, but is this the case for this game? Is the transformer shot?

Thanks

Alberto

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#3 4 years ago
Quoted from pinhead52:

When you measure 25v you are touching the black and red leads top right? to measure 6v you touch the black-white lead top right and the white lead top left.
transformers rarely go bad. Fuse holders are the common issue

I’m not. I’m connected to the ground on the cabinet and measuring 6V at the white lead on the top left. For what should be 25V I’m measuring the red lead, also to cabinet ground. I’ll have to try what you explained when I get home tonight.

Would it also make sense to remove the fuses from the holder to isolate the transformer from the rest of the circuit and then make the measurement?

#7 4 years ago

I checked continuity on the transformer coils, all good. Checked fuse holders, all good. Powered up transformer and measured per your recommendation, all voltages were correct.

Somebody bent the bounce switch going to the 25V circuit open, schematic shows it as NC. I’m going to check and make sure there are no shorts downstream of it before bending it to the right state

Thank you all for the advice. I’ll keep on posting updates

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#9 4 years ago
Quoted from pinhead52:

yep, NC on that one, as well as the slam switch on the door. Many times I see these switches removed or bypassed

Slam switch on the door is bypassed

#10 4 years ago

Now that I know 25V is available I want to make sure all the switches are in the correct state before powering up.

When I look at the control bar and manually work the armatures, not much is happening with the switches on them.

If anyone owns a working Soccer, can you send me a photo of how the control bars are setup?

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#13 4 years ago

HowardR and edednedy , I followed your advice and closed that switch and fired up the machine. The scoring motor is alive! Not much else happens after that, but it's another step in the right direction. More work to follow this weekend.

Thank you!

Alberto

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