@Jean Perusse posted:Hi,
Thanks H1000.
Thanks John, the diodes are ordered and when they are received and
installed I will follow up.
Thank you to all for your skills and expertise.
Jean
If you removed the diodes that you think are shorted, wouldn't the TIU start up and led turn red and stay red? I would not run trains without the TVS replaced if it is the culprit, however it could confirm diagnosis and expidite repair. Just a thought.