Ok guys...need some ideas.
I've got a chassis (9802 MP) that when put onto a pinsetter, works fine with the exception that the S motor does not start up--it just hums.
Here's what I've done. I know it's somewhere inside the chassis because another chassis works fine.
All C1/C2A pins look fine. No broken wires in any of the terminals inside the blocks. S Contactor is brand new and good (Seimens-Allis type). PC Board is good. (9861 type)
It appears there's no power getting to the start windings of the S Motor since it's just humming (loudly!)
I'm leaning towards the idea of a bad leg off one of the transformers, but I thought I would throw this out at everyone and get some other ideas.
Thanks,
Kat
I've got a chassis (9802 MP) that when put onto a pinsetter, works fine with the exception that the S motor does not start up--it just hums.
Here's what I've done. I know it's somewhere inside the chassis because another chassis works fine.
All C1/C2A pins look fine. No broken wires in any of the terminals inside the blocks. S Contactor is brand new and good (Seimens-Allis type). PC Board is good. (9861 type)
It appears there's no power getting to the start windings of the S Motor since it's just humming (loudly!)
I'm leaning towards the idea of a bad leg off one of the transformers, but I thought I would throw this out at everyone and get some other ideas.
Thanks,
Kat

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