tiu rev L. 6.1 version software upgrade and now TIU wont read engines

Hey Chris,

Just to be clear your remote is updated as well?

Also, does the remote "see" the TIU at it's proper address?  i.e. 1, 2, 3 etc...

Lastly, you may try the phone cord idea to tether the remote to the TIU.    I would also carefully open the remote and push down on the board to make sure it's firmly seated.

How are the TIU and track powered up? Sounds like they missed the watchdog signal. The remote won't find engines running in conventional.

Chris,

Make absolutely certain of two things:

• That the TIU's red LED is lit and note how many times it blinks before coming on steady.
• That the TIU's output channel's red post is connected to the center rail and the black post to an outside rail.

Then, with the TIU and remote powered up, press READ and note what is displayed.

Did you test TIU with engine before upgrade?  Fix channels pass power through so that is normal, but it sounds like DCS generator issues with this used TIU.  So it may have a hardware fault.  G

Chris,

I should also mention that if my first post and the previous posts of others don't yield a solution, Feature Reset the TIU to ensure that the DCS signal is turned on for all channels.

Barry, will the TIU feature reset also cure a TIU giving out weak signal from all 4 outputs? Our club recently had a short on the layout that resulted in the internal fuses being blown in the TIU, this caused huge loss of signal in some areas after the fuses were replaced. We swapped out the TIU with another and regained 10s in those same spots. 

EscapeRocks posted:

Hey Chris,

Just to be clear your remote is updated as well?

Also, does the remote "see" the TIU at it's proper address?  i.e. 1, 2, 3 etc...

Lastly, you may try the phone cord idea to tether the remote to the TIU.    I would also carefully open the remote and push down on the board to make sure it's firmly seated.

oh yeah.  updated the code first in TIU, then the remote.  im going to use the cord and see if it works.

Barry Broskowitz posted:

Chris,

Make absolutely certain of two things:

• That the TIU's red LED is lit and note how many times it blinks before coming on steady.
• That the TIU's output channel's red post is connected to the center rail and the black post to an outside rail.

Then, with the TIU and remote powered up, press READ and note what is displayed.

ok ill will look into that tonight.  thanks !

GGG posted:

Did you test TIU with engine before upgrade?  Fix channels pass power through so that is normal, but it sounds like DCS generator issues with this used TIU.  So it may have a hardware fault.  G

George I did not test it prior,  ill have to look at the red light when I plug it in and then hit Read on remote.

Greg,

will the TIU feature reset also cure a TIU giving out weak signal from all 4 outputs?

Typically, no, it should not. That could be symptomatic of a known hardware issue with some TIUs. If so, it would require a repair.

Well got home..plugged in aux.power and then power and it all works fine..engines loaded..no auto startup..works Great!  Who knows..gremlins I say!

Excellent!   Glad you got it sorted

Barry Broskowitz posted:

If so, it would require a repair.

Barry, do you do hardware repairs on the TIUs? If not is there anyone you would recommend?

Greg,

I do not do TIU repairs for others.

If the TIU is within warranty, I'd send it to MTH. If it's not, contact forum member GGG using the E-mail address in his profile. He is an authorized MTH tech and is one of the best. He will get you squared away.

Thank you Barry!

yes, George will do you well on repairs.