Vlad
Road Foreman
Posts: 87
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Post by Vlad on Aug 9, 2013 21:40:30 GMT -5
Hello
I have an atlas H 16-44 with a factory installed decoder. My problem is that the lights are very dim when i run it in dcc. when i switch the decoder to plain dc the lights are much brighter. Can anyone help me with this?
Thanks
Vlad
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Post by Mark R. on Aug 10, 2013 20:48:53 GMT -5
I'll ask the obvious first .... you don't have F4 (dimming) turned on do you ?
Mark.
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Vlad
Road Foreman
Posts: 87
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Post by Vlad on Aug 10, 2013 21:59:16 GMT -5
I made sure i did not have F4 dimming on.
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Post by Mark R. on Aug 10, 2013 22:57:07 GMT -5
Ok - Next obvious question .... what is the voltage you have on the rails for your DCC system in comparison to your DC voltage where you claim they are brighter ?
Most DCC systems have around 13 to 14 volts on the rails which gives around 12.5 volts to the lights after rectification. A DC throttle could have as much as 15 to 16 volts at full throttle.
Mark.
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Vlad
Road Foreman
Posts: 87
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Post by Vlad on Sept 8, 2013 22:40:09 GMT -5
I'm using a Sprog IIv3 programmer/controller as I currently don't have a layout. Its volyage output is only 12v. That is most likely the issue. Thanks for your tips Mark!
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