@Atlas O dad posted:Thanks. I tried the isolated track and it worked fine. Now, I wonder what could have happened, I did not do any wiring changes. I'll try leaving the right half of the z-4000 off to isolate that. Any other ideas to find why the track suddenly causes the TRI to run slow?
@Atlas O dad posted:Thanks to your help I think I am narrowing it down.
1. Both 2 remotes have been reset.
2. The TIU has been reset.
3. The layout for this purpose is one three foot test track wired direct to TIU.
The precise problem: The TIU is slow to respond to both remotes. A whistle command may cause the whistle to stick at on for ten seconds. A start up may take 5 seconds for a battery backup engine to hear the command and a shut down or move forward may also balk before responding. All engines have same problem.
So, given that it unlikely both remotes would begin to act faulty at the same time, that only leaves the TIU, as I see it. Do you agree? Is this a problem others have experienced? This, my only TIU is about 18 years old. Is it time to replace TIU?
Thanks in advance for your help.
Robert, (even though I am listed as "Atlas O Dad" i prefer Ross track
I got confused trying to follow your posts and reverted to the very basics. Since you won't agree that anything has changed, I have to guess here. You admit that you reset both the remotes and the TIU.
If you lived close by to a friend or shop with DCS, I'd say let them test your TIU. Since you already ordered a new one, wait until it arrives and see how it does. Please report back.
I believe that the system is struggling for some reason. The remote waits for a proper response from the TIU. The TIU needs to get that from the engine(s) first. So it's hard to guess at what failed here.
Was there some event that happened like a derail or short to the system?
What prompted you to reset everything?
Did any wiring get changed?
@Atlas O dad posted:Thanks for those ideas. I tethered the remote directly to the TIU with the single 3 foot test track only connected to the TIU. The TIU still takes 10 to 20 seconds to respond to handheld. I tried "read" per your good suggestion, the TIU only has one address in use. Could the TIU be stuck on some sort of memory loop? Again, it has been reset. WE've eliminated the remotes. Your ideas appreciated.
