(Topic ID: 264647)

Checkpoint vuk is being super weird

By Hrvat9

1 year ago



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  • 4 posts
  • 3 Pinsiders participating
  • Latest reply 1 year ago by Roverius
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#1 1 year ago

On my checkpoint , the vuk slowly stopped shooting the ball out and now doesn’t work at all.
Here’s a vid of me in the diagnostics mode. When I lightly tap anywhere on the machine, it says the vuk goes off

https://streamable.com/zfmfm

I just noticed my Auto ball launch from the plunger Also doesn’t work from diagnostics

The vuk Has vio- black/ brown wire and ball launch has Vio- grey/brown wire

#2 1 year ago
Quoted from Hrvat9:

On my checkpoint , the vuk slowly stopped shooting the ball out and now doesn’t work at all.
Here’s a vid of me in the diagnostics mode. When I lightly tap anywhere on the machine, it says the vuk goes off
https://streamable.com/zfmfm
I just noticed my Auto ball launch from the plunger Also doesn’t work from diagnostics
The vuk Has vio- black/ brown wire and ball launch has Vio- grey/brown wire

And the wires are attached just fine underneath?

#3 1 year ago
Quoted from Isochronic_Frost:

And the wires are attached just fine underneath?

Yes they are

#4 1 year ago

The colors on the display correspondent with the colors on the matrix chart.

Try to test with disconnecting 1 cable from the CPU board: CN08 or CN10
Then try to tap again and see it it has the same issue.
I've had kinda same issue and there was a bad logic ic. RA11 was faulty.

Also, check the diodes under the VUK. Else you could desolder a wire and do the tap test again.

Switch Matrix chart (resized).png

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