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Changing Horn on Atlas Loksound GP7

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  • Member since
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Changing Horn on Atlas Loksound GP7
Posted by blabride on Thursday, July 11, 2019 10:39 AM

Hello,

I hope someone can advise me on a problem I am having. I have an Atlas GP7 in the MKT green scheme that was a part of the new revised Atlas GP7 series first run that I am trying to change the horn to a Leslie S3. This first run came with Wabco's which I have accurized to reflect this loco in the early seventies.

When I go into CV48 from my Powercab it reads 64 which does not add up to anything in the manual. The Wabco horns are 10 or 11. The prime mover files are 0,16,32 and 48. Anyone know what Atlas has done here? 

Also how does one know which CV48 value is entered. I am assuming there is only a sound file for the GP7 567. But have no idea what that value would be. I am assuming since the 64 is so high its 48.

Could I add 48, 7 for the horn, 0 for the bell and 0 for the brake squeel and get what I am after?

Thanks,

SB

  • Member since
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  • From: Reading, PA
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Posted by rrinker on Thursday, July 11, 2019 10:55 AM

 Really depends on if the Atlas sound file is the stock Loksound Select 567 file or if it is custom for Atlas. 64 indeed would not make sense, that would be like a 5th prime mover sound with default bell and default horn. If the current setting is 64, and the horn you want is 10 or 11, then the value you want is 74 or 75 (64 + 10 or 64 + 11). You just add the values for the prime mover, horn, and bell to get a total to enter in CV48.

                                --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
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  • From: Shenandoah Valley
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Posted by BigDaddy on Thursday, July 11, 2019 11:29 AM

There should have been a cheat sheet that came with the loco to guide you on horns.  Atlas doesn't put these on their website but they do have contact info for support

https://shop.atlasrr.com/customersupport.aspx

Henry

COB Potomac & Northern

Shenandoah Valley

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Posted by tstage on Thursday, July 11, 2019 12:32 PM

Randy,

If it is a Loksound Select, does CV32 have to be changed to "0" or "1" before adjusting the horn with CV48?  I recollect certain sound or lighting CVs requiring changing the primary index (CV32) before adjusting the secondary one.  However, I don't have the Loksound manual in front of me to verify if the horn is one of those.

Edit: Changing CV32 to a value of "0" or "1" first is NOT required for horn selection but is required for adjusting individual light and sound volume functions.

Tom

https://tstage9.wixsite.com/nyc-modeling

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

  • Member since
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  • From: US
  • 416 posts
Posted by blabride on Thursday, July 11, 2019 1:13 PM

I did check the box and the only thing in it is the standard Atlas Loksound Gold manual that highlights and repeats what is on ESU's website about CV48.

I pulled one of my more recent Gold MKT U23B's from the track and checked its CV48 and it is set to 6. It does have the right horn though and 6 is a Leslie 3 chime, so the FDL16 must be 0? That is a possibility unlike 64 in the Geep. I sent Atlas an email will see if they reply.

I am almost tempted to buy one of the Gold new runs in the new numbers to see. But even it my have a different version of Loksound from the first one I have. I also never saw these run in groups of three.

  • Member since
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  • From: US
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Posted by blabride on Thursday, July 11, 2019 1:53 PM

Just got off the phone with Don at Atlas. He called me. Wonderful customer service. The Prime mover is set to 0 in Atlas Loksound locomotives. After we did a reset and entered 7 for the Leslie in CV48 all is well. Not sure why it was set to 64 must have been one of those gremlins. 

I also noticed that while the sound seemed to be at 190 it was set to 28. When I set it lower to 20 I could hardly hear it. Now at 90 all is good. Weird.

Dang I wish I had asked him if they had some more handrails for this loco as my new 94 has a broken one on the firemans side.

Thank you guy's for all your help. 

Steve

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Posted by tstage on Thursday, July 11, 2019 4:47 PM

Steve,

I had a chance to glance through the Loksound Select manual.  A value of "64" for CV48 is for the fast bell and "0" is for slow bell.  And a value of "7" will indeed give you the Leslie S3 horn, as you found out.

Tom

https://tstage9.wixsite.com/nyc-modeling

Time...It marches on...without ever turning around to see if anyone is even keeping in step.

  • Member since
    February 2002
  • From: Reading, PA
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Posted by rrinker on Thursday, July 11, 2019 7:06 PM

 That makes sense - 64 would be prime mover 0, horn 0, bell 0, fast bell.

                                           --Randy


Modeling the Reading Railroad in the 1950's

 

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

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