Skip to main content

3 replies

Help please. Lionel 6-28070 SP 4-4-2 stuck in reverse.

MW mike wOGR Forum Member

Hi everyone.

This is entirely my own fault. I swapped out a poorly responsive R2LC board but failed to line the plugs up correctly (DOH !!) Made a mess of the R2LC!!

I have now swapped out the board for a new one and for good measure changed the motherboard as I had the correct spare. After a full reset I now have all the functions but only in reverse.

Have I managed to damage the motor driver PCB do you think? can this be fixed or is there something else I can try to get my engine to respond to "forward"

I am running in TMCC

Thanks guys.

 

MIKE

 

 

 

Last edited by mike w
Original Post

Replies sorted oldest to newest

T TrainLarryOGR Forum Member

Using a voltmeter, check the voltage on the motor as you cycle the loco into reverse. It should change polarity, and the motor should reverse. If the polarity changes, but the motor does not reverse, then the motor electronics may be bad.

If the polarity does not change at the motor, then one of the boards may be faulty. Try swapping them out with known good boards. If the boards are good and the polarity still does not change, then the transmitter may be suspect in that it is not sending out the proper signal to the boards.

In any case, swap out all components one at a time until the system works properly.

Larry

Add Reply

Views: 250
Post

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

Membership Required

We're sorry. You must be signed in to continue. Sign In or Register
×
Are you sure you want to remove from your Block List?
×
Loading...
×
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .
×
Link copied to your clipboard.
×

Access to this requires an OGR Forum Supporting Membership

OGR Forum Supporting Membership

Help support this forum with an OGR Forum Supporting Membership.
You will be able to watch the videos in the INSTRUCTIONAL VIDEO FORUM!
A one-year OGR Forum Supporting Membership is only $12 per year, so sign up now!


    OR     


Access the ALL the OGR VIDEO FORUMS AND  over 300 back issues of OGR
with a DIGITAL SUBSCRIPTION!



$12.00 per 12 Months (plus tax if applicable)
×