I have a perplexing problem and wondered if you could give me any advice.
I put my new Kernow warship class 41 through the customary running in on my DC track test rolling road. half an hour each direction at half speed. It ran perfectly.
I soldered a speaker to an MX644D with stay alive sound chip from Zimo and installed it in the locomotive. Tested it with the body removed on my DCC programming track rolling road. It took the address change and ran it in both directions. All fine.
I use the Dynamis Ultima controller with the handset or Railcontroller on main layout.
Now the issue; if I run the locomotive with the sound and direction turned on it will run quite comfortably at a scale 50mph for approximately a minute and then it stops with a strange regular ticking sound and the direction lights flash at the same rate as the tick. This happens on the mainline as well as the rolling road. It only stops ticking when I turn off the power to the track using the emergency stop button. When the power is restored, after about 10 seconds , the loco runs as it should until it stops again and ticks.
I wonder if the ticking and lights flashing is as a result of the "stay alive" trying to do what it is supposed to?
If I run the loco with lights on and no sound it runs perfectly.
I've read some of the previous posts on current draw etc and although some of it makes sense I'm really reluctant to mess about with the model, It wasn't inexpensive and should not need me to fix it.
Any thoughts or suggestions would be welcome.
I have written to Kernow asking for help.