Author Topic: Issues with 73100  (Read 141 times)

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GM50 4164

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Issues with 73100
« on: October 29, 2019, 08:59:23 PM »
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Good evening everyone, I have a issue I am hoping to gain some info on. I am currently working with a kato SD70ACe and I am going about installing it the same as I did the Dash 9 last year. I've run separate LEDs from the AUX 3,4 tabs and after programming, everything works great. Then after about 6 seconds the LEDs burn out. I didn't have to install resistors on the AUX outputs before so what gives? Also, the 2 black square chips on top are getting very hot to the touch so I know something isn't right. Any ideas? These are 0402 LEDs BTW.


Benjamin H

RBrodzinsky

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Re: Issues with 73100
« Reply #1 on: October 29, 2019, 09:05:53 PM »
+1
The Aux 3/4 pad are not resistor protected, only the fwd/rear light pads
Rick Brodzinsky
Chief Engineer - JACALAR Railroad
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peteski

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Re: Issues with 73100
« Reply #2 on: October 29, 2019, 09:12:12 PM »
+1
Yes, Rick is correct.
For all the gory details see https://www.therailwire.net/forum/index.php?topic=44324.msg569571#msg569571
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