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HO Athearn Genesis SP 4-8-2 CV settings

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  • Member since
    January 2010
  • 208 posts
Posted by WPAllen on Saturday, January 22, 2011 4:30 PM

I agree with rrinker. Check CV2 and see what the value is. As posted I would set it to 0.

  • Member since
    February 2002
  • From: Reading, PA
  • 30,002 posts
Posted by rrinker on Saturday, January 22, 2011 1:24 PM

 Sounds like CV2, start voltage, got set to some high number. Set it back to 0 to start, if the loco doesn't move on speed step 1, gradually increase CV2 until it moves at the slowest speed it can reliably do.

                         --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
    October 2008
  • 57 posts
Posted by timber2 on Saturday, January 22, 2011 1:19 PM

WPAllen,

When I advance the speed from 0 to 1, my locomotive flys down the track like a slot car. What CV should I change to slow down the locomotive?

timber

  • Member since
    January 2010
  • 208 posts
Posted by WPAllen on Saturday, January 22, 2011 12:34 PM

I am using the new settings as posted above in all my Tsunami units. IMHO the sound is greatly enhanced. I just infinished installing a Tsunami in a Western Pacific brass 4-6-0 using a high base speaker and I really had to turn master sound volume CV down quite abit. It used to be for me anyways that the horn/whistle volume was the weak spot. No more.  

  • Member since
    July 2003
  • From: Sierra Vista, Arizona
  • 13,757 posts
Posted by cacole on Saturday, January 22, 2011 10:43 AM

The engine running backwards indicates that you have the decoder plugged in wrong if you used the 8-pin NMRA socket -- turn the decoder plug around to correct this problem.

Another option is to use CV 29 to correct the direction problem by adding 1 to the value.  The value in CV 29 to tell the locomotive to use a long address, 28/128 speed step, and no DC operation would be 34.

In a previous thread, Athearn recommended the following decoder values:

CV 128 = 230 (Master Volume)
CV 129 = 255 (Horn/Whistle Volume)
CV 130 = 80 (Bell Volume)
CV 131 = 150 (Prime Mover or Chuff Volume)
CV 143 = 50 (Channel 14 Mixer)
CV 153 = 7 (Equalizer Control)
CV 156 = 165 (240 Hz Cut/Boost)
CV 157 = 140 (500 Hz Cut/Boost)
CV 158 = 160 (1 KHz Cut/Boost)
CV 159 = 145 (2 KHz Cut/Boost)
CV 160 = 200 (4 KHz Cut/Boost)
CV 161 = 7 (Reverb Control)
CV 162 = 180 (Reverb Level)
CV 163 = 32 (Reverb Delay)
CV 164 = 32 (Reverb F.B. Gain)
CV 169 = 10 (Reverb Ch 7 Mixer)

These settings are originally recommended for the Tsunami decoder that is in the Athearn SD70ACe, but other users have indicated that they improved the steam sound also.

  • Member since
    October 2008
  • 57 posts
HO Athearn Genesis SP 4-8-2 CV settings
Posted by timber2 on Saturday, January 22, 2011 10:19 AM

I have a new Athearn Genesis SP 4-8-2 with Tsunami TSU-1000 decoder. I've changed the CV settings according to recommendations by Caboose Hobbies in Denver, as indicated below. Using my NCE throttle, the locomotive runs backwards in the forward direction, and forward in the backwards direction. And when I advance the speed from 0 to 1 unit , it flys down the track. Can someone help me correct this. Thank you.

Caboose Hobbies recommended cv settings for this locomotive:

cv153=7

cv157=180

cv158=190

vc159=200

cv160=225

cv128=255

cv130=20

cv133=6 

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