Author Topic: ESU 73836 crashes NCE PowerCab  (Read 455 times)

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Kentuckian

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ESU 73836 crashes NCE PowerCab
« on: November 12, 2019, 10:46:30 AM »
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I installed the subject board in an Atlas GP-9 and it kept crashing my NCE Powercab. I took it out and hooked it to the tester and the same thing happens. I don’t have JMRI or an ESU programmer yet, I was hoping to get one or two diesel installs done before investing in those.


Sorry for the ticking clock.

Any help would be appreciated.
« Last Edit: November 12, 2019, 10:57:34 AM by Kentuckian »
Modeling the C&O in Kentucky.

“Nature does not know extinction; all it knows is transformation. ... Everything science has taught me-and continues to teach me-strengthens my belief in the continuity of our spiritual existence after death. Nothing disappears without a trace.” Wernher von Braun

diezmon

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Re: ESU 73836 crashes NCE PowerCab
« Reply #1 on: November 12, 2019, 02:24:12 PM »
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Is it just me, or is your track1 connected to the motor clip?  Hard to tell in the vid

peteski

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Re: ESU 73836 crashes NCE PowerCab
« Reply #2 on: November 12, 2019, 02:51:13 PM »
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What happens when you take the track power leads from the Power Cab and short them together?  That won't damage the Power Cab (it has a short circuit protection). Will Power Cab behave the same way?

If yes, then I suspect the decoder is internally shorted. If you have an ohmmeter, it will probably read zero ohms between right and left rail contacts.
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davefoxx

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Re: ESU 73836 crashes NCE PowerCab
« Reply #3 on: November 12, 2019, 03:02:50 PM »
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I'm with Pete.  I think you have an internal short in the decoder.  I had that happen once on a decoder I was installing; it would shut down the LokProgrammer.  Thankfully, ESU recognized that the decoder was defective, and they replaced it for free.

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Kentuckian

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Re: ESU 73836 crashes NCE PowerCab
« Reply #4 on: November 12, 2019, 08:25:44 PM »
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I think you guys are right. I suspected a short, that’s why I pulled it out of the chassis. I will send them in. Thanks for the feedback.
Modeling the C&O in Kentucky.

“Nature does not know extinction; all it knows is transformation. ... Everything science has taught me-and continues to teach me-strengthens my belief in the continuity of our spiritual existence after death. Nothing disappears without a trace.” Wernher von Braun

Kentuckian

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Re: ESU 73836 crashes NCE PowerCab
« Reply #5 on: November 22, 2019, 04:48:08 PM »
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I got what I suspect are new replacement decoders back from ESU today. Quick turnaround, kudos! @esullc
Modeling the C&O in Kentucky.

“Nature does not know extinction; all it knows is transformation. ... Everything science has taught me-and continues to teach me-strengthens my belief in the continuity of our spiritual existence after death. Nothing disappears without a trace.” Wernher von Braun