Guessing my MTH DCS (50-1001) system is shot. Any for sale anymore. Internet looks dry.
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dcs still made but out of most stock places tiu 50-1003 remote 50-1038!
Not a lot to go on here. What makes you think it is shot? What does it do/not do? Which revision of TIU do you own? Depending on the version, it may be worth your while to repair it.
Here's the scenario. Strange (to me). The TIU comes on but does not respond to commands from the MTH remote. MTH engines start up automatically without signal but do not respond to remote command.
Lionel engines do not start up automatically and respond to commands from Lionel remote normally, fed thru the TIU.
Might the MTH remote be the problem?
This is a Rev L TIU of some age. Might there be a way of repairing?
PS3 steam engines ??
Sounds a lot like a loose tether problem between locomotive and tender
Which rev do you have? Please post a picture of the bottom of the TIU.
When you power up the TIU, how many times does the red led flash?
How are you providing power to the TIU?
Did it work previously? Is the remote programed to connect with the TIU?
DCS and TMCC/Legacy work independently of each other. So if you have a Lionel command base, and you are running through a Fixed Voltage TIU channel, it will respond to the Lionel remote, regardless of what the DCS TIU is doing. The only exception to that rule is if a fuse is blown in the TIU. Then nothing works.
Presuming you have everything DCS configured properly, one or more of your signal generators could be bad. Or, depending on exactly how the TIU was constructed there could be a TVS or more that have shorted, driving the signal output down. There have been several highly technical threads about this issue and possible fixes on this forum. If you want to delve into some heavy duty electronics theory and practical application thereof, I invite you to read this thread
At this point, I will defer to Gunrunnerjohn or GGG. Either of them are highly competent and capable of repairing a Rev L TIU. BTW, Rev L TIUs are definitely worth repairing!