A diesel jumped the track at a switch and the ZW-L goes red. This time the engine will only run conventional when re-railed. Tried all I could to no avail. Opened it up and verified that all wires, connections, antenna situation are fine. So, thinking it must be a board, I replaced the R4LC with a new one, but before I turned things on I got to wondering what if it was the CC that was bad. Could it screw up the new R4LC? So my question: is there a "proper sequence" to follow? Thanks.
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