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QSI sound/DCC equipped P2K SW8/900 where to connect Keep-Alive

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  • Member since
    April, 2017
  • 6 posts
QSI sound/DCC equipped P2K SW8/900 where to connect Keep-Alive
Posted by Glenn Campbell on Wednesday, January 24, 2018 4:33 PM

Hi all.

I've been in touch with both TCS and Walthers regarding the connection of a Keep-Alive KA4.  Can anyone advise on where to connect the 2 wires to the board?  According to TCS a BLUE wire hooks to the Positive (+) Common and a BLACK/WHITE wire goes to the Negative(-) ground.  How may I identify these points on the board?

Thank you in advance,

Glenn

  • Member since
    October, 2006
  • From: Western, MA
  • 7,735 posts
Posted by richg1998 on Friday, February 09, 2018 8:56 AM

N

  • Member since
    April, 2017
  • 6 posts
Posted by Glenn Campbell on Friday, February 09, 2018 9:17 AM

Thank you VERY much, Rich.

Have you any idea how to determine the revision of my board?

Cheers,

Glenn

  • Member since
    February, 2002
  • From: Reading, PA
  • 24,615 posts
Posted by rrinker on Friday, February 09, 2018 4:35 PM

 It's likely neither of the two shown, those are newer QSI boards. The factory equipped locos with QSI's used Quantum boards, not Revolution. What you get on Marcus' site is information on how to figure out where you need to connect a keep alive, in addition to the examples shown. There should be a location on the board with 4 diodes, where 2 connections go to the track power inputs, and two others go deeper into the board. That's how you cna find the correct connection points. In some case, the blue function wire is the + side. 

                             --Randy

 


Modeling the Reading Railroad in the 1950's

 

Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.

  • Member since
    April, 2017
  • 6 posts
Posted by Glenn Campbell on Friday, February 09, 2018 4:38 PM

Thank you, Randy.  I'll try not to let the magic smoke out of it.

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