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ERR Sound board installed(F-7) Tested perfect. after finial assembly, NOTHING'.. Help

Any ideas on what is wrong' Installation was completed.  Tested with battery power, engine sounds, horn, perfect.  After re-installing the shell, put on tracks and nothing.  I have installed ERR sound boards in Williams models, never a problem.

The initial testing was perfect'..  I have re-examined everything, but cannot find the problem. 

Another question, Can a sound board be installed in a dummy car without any other boards, and hooked to direct power from the wheels, and will it operate'...

  Thanks for any assistance you can provide'....

 

 

Original Post

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

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