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I just put up this post and it was deleted without explanation. Maybe I put it in the wrong forum. I don't know. I put a lot of time, effort and detail into the original so I won't put so much into this incase it is deleted too. My Mohawk developed the problem as stated above. My friend and I tried reseating the radio command board with no improvement. Conventional works OK. CAB1 TMCC works fine on all other TMCC locomotives. Forum member, Michael Hokkanen was kindly trying to help me on the original post but it was deleted. If he or anybody can help I would appreciate it. I am looking for a replacement radio board for it and also a headlight harness or LED upgrade. Thanks to anybody who can help.

Last edited by Dave 69 GTEL
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I was also trying to reply when your post was deleted.  To piggyback on what Secarider mentioned: if the handrails are allowed to touch the metal boiler shell, that will also spoil command reception.  So check all stanchions, and the front end of the handrails where they go into the pilot deck.  Good luck, I hope that your issue is something simple!

With the boiler shell removed, I would carefully pull the antenna plug off the circuit board.  And then stick a small wire in the end of the plug, even a sewing needle if you do not have anything else available.  Be sure it is in the side of the plug that has the electrical contact inside it leading to the black wire. Then I would check to be sure that you (have continuity) from the plug to the antenna on the outside of the boiler shell. If you have continuity from the plug end to the outside antenna rail. Than at least  you know that the antenna wire has not been damaged. Then as gunrunnerjohn stated you may have a bad R2LC board.  As I previously stated,  you can actually break the contact between the black antenna wire, to the inside of the railing. Without it showing or being broken right off. 

@Secarider posted:

With the boiler shell removed, I would carefully pull the antenna plug off the circuit board.  And then stick a small wire in the end of the plug, even a sewing needle if you do not have anything else available.  Be sure it is in the side of the plug that has the electrical contact inside it leading to the black wire. Then I would check to be sure that you (have continuity) from the plug to the antenna on the outside of the boiler shell. If you have continuity from the plug end to the outside antenna rail. Than at least  you know that the antenna wire has not been damaged. Then as gunrunnerjohn stated you may have a bad R2LC board.  As I previously stated,  you can actually break the contact between the black antenna wire, to the inside of the railing. Without it showing or being broken right off.

I have purchased a replacement R2LC board from gunrunnerjohn which hopefully I will receive next week. My locomotive is at my train club right now, the Casey Jones Hi-railers of Memphis TN. Check out our Facebook page. I'll take your advice and check the antenna when I remove the shell to replace the board. Thank you.

Last edited by Dave 69 GTEL

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