Repair in New Jersey

You ought to be more specific as to problem.

Or, where in NJ

Welcome to the forum!

Post your specific symptoms. Then you will get some guidance to resolve the issue. If it cannot be resolved, MTH is in Columbia, MD. Quick mail trip.

My DCS is version 4.20 & the TIU is Rev L . This loop has been in operation for about 2 years with no problems .The hand held  unit just reads "No Active DCS engine On the Track ". My hook-up is through the Fixed 1 in & out port .I have ful track power ,but no control of the engines .Both engines(PS2) run on a coventional track & run about 6 sec after power shut down. (I asssume batteries are OK ) . I used a MTHZ-4000 & set the engines back to factory. ( Was successfull because the horn sounded twice )

When the read button is pressed the display says it is communicating with TUI 1 .From the threads I also reset the TIU to factory .After each of the above steps I try to ADD MTH engines(with one engine on the track at a tiime ). The hand held still reads  'NO Active DSC engines on the track " .

I believe the TIU is defective & that is why I am seeking a service center in North Jersey .

SInger.  From your narrative I assume that you are not using the AUX port to power the TIU itself, but just the connection through FIXED 1.  I suggest that you run a jumper from FIXED1 red to FIXED 2 red, switch the black from FIXED 1 input to FIXED 2 input, and then switch the OUTPUT blacks & reds from FIXED 1 to FIXED 2.  This will pin down whether a signal generator has failed.

Quite frankly, not everyone who is a certified tech is really qualified.  Thus, I would not send it to just any tech, but only to MTH or a well-known tech here in VA. 

Thank You RJR . I will give that a try & get back to you .

If that doesn't work, I'm sure Barry Broskowitz, GGG, and Gunerrunnerjohn will also post some further things to test.  While components do fail, often it is some easily curable issue.

Try the guy in Kearny he's a big MTH dealer

HI I would be glad to help you I'm in new jersey and my lhs is an asc tech and can either fix it for you or send it to MTH. his telephone number is 856-358-8844 he is a great guy and will bend over backwards to help you out in  any way he can . he is called Alloway trains and things, it is a husband and wife train shop and has a beautiful DC's o gauge train layout .

Alan

I don't see that you have a email so send me an email and I'll contact them for you mine is amustng@aol.com .I had mine fixed threw him and mine is a rev L also

Alan

Yep it seems it may be defective but don't give up just yet.

Not likely, but the dcs signal could have been turned off accidently.

To turn it back on go to Menu/System/ Dcs set up/ AON which mean turns the signal on to all channels.

Crossed wire to the track? red always to center rail.  

Does fixed 2 work?  Hook up the track to fixed 2 keeping in mind the tiu must be turned on(just like a radio) to function.  Power to fixed 1 or an aux power supply  will turn the thing on.

Resetting the TIU is not going to do much. You may be better off deleting the engine (s)from the remote and try adding again.

If fixed 2 works there's definitely a signal  problem with fixed 1. (back where we started)

You're right, Gregg.  At this point, we just have to wait for Singer to report back.

Personally, I would never bring a bad item to a LHS.  I'd either deal directly with MTH, or with the superguru in Va Beach.