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Lionel O scale bad E unit board

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  • Member since
    October 2019
  • 11 posts
Posted by O Guage on Monday, May 18, 2020 10:36 PM
Thank you for the diagram very help full
  • Member since
    October 2019
  • 11 posts
Posted by O Guage on Friday, May 15, 2020 2:53 PM
Thank you for your advice will look into that
  • Member since
    October 2019
  • 11 posts
Posted by O Guage on Friday, May 15, 2020 2:53 PM
Thank you for the link
  • Member since
    October 2019
  • 11 posts
Posted by O Guage on Friday, May 15, 2020 2:51 PM

It is a can motor and thanks for your advice on this i will try it

  • Member since
    December 2005
  • From: Hopewell, NY
  • 3,230 posts
Posted by ADCX Rob on Friday, May 15, 2020 2:35 PM

@TrainLarry
...If you wish to reverse the engine without unhooking wires, you can wire in a Double Pole, Double Throw switch between the rectifier and the motor.

As regular Lionel E-units are, in fact, Double Pole, Double Throw switches, they can be used to perfom the function using the rectifier as well.

Here is the Williams Diagram for two DC can motors wired in parallel with an E-unit. Just eliminate one motor connection for your single motored engines.

DC Reverse With Lionel E-Unit

Rob

Rob

  • Member since
    October 2011
  • 969 posts
Posted by TrainLarry on Friday, May 15, 2020 2:18 PM

Presuming you have a can-motored locomotive, for forward only operation, connect one 'AC' input of the full wave bridge rectifier to the roller pickup and the other 'AC' input to chassis ground. The + and - connections on the rectifier go to the motor terminals. If the engine runs in reverse, switch the + and - leads.

If you wish to reverse the engine without unhooking wires, you can wire in a Double Pole, Double Throw switch between the rectifier and the motor.

 

Larry

  • Member since
    April 2005
  • From: South Carolina
  • 9,713 posts
Posted by rtraincollector on Friday, May 15, 2020 10:25 AM

Contact Jeff at the train tender, as that board probably isn't that expensive. Jeff@ttender.com or goto www.ttender.com and his phone number is on the bottom of the page

Life's hard, even harder if your stupid  John Wayne

http://rtssite.shutterfly.com/

  • Member since
    October 2019
  • 11 posts
Lionel O scale bad E unit board
Posted by O Guage on Thursday, May 14, 2020 8:17 PM

Hay im sure this has been done has any one replaced a bad Eunit board with a diode or a full bridge rectifier as a replacement with a wireing diagram if it only goes fowared that ok or what would it take to make it reverse thank for any input welcome   

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