Lionchief Plus Santa Fe Mikado 6-81295 - No Sound

It's a Lionchief (plus doesn't matter) steam with a drawbar with connectors in it.

If it's not just the volume being turned down digitally, and not the connection seated fully,  the next thing is the thin speaker wires known to break the solder joints at the drawbar. This is hidden under the heatshrink which does NOT act as a strain relief, it just covers up cosmetically the connections.

https://www.lionelsupport.com/...nChiefPlusMikado.pdf

Again, per manual, check that sounds switch is on.

Adjusting the volume using the LionChief remote
To turn off the locomotive’s steam background sounds, slide the SOUND switch to the OFF position.
Refer to Figure 1 on page 5 for the location of this switch. You must cycle the power off and on for
this change to take effect, regardless of the operational mode.
The overall volume of the sounds in your locomotive can be adjusted, but this requires the use of
the LionChief remote (in remote operation mode). To enter Volume Control Mode, place the remote
on a flat surface. Using one hand, press the WHISTLE and BELL buttons simultaneously. After three
seconds, the remote’s red LED will begin to flash, acknowledging that you are in volume adjustment
mode. Keep the WHISTLE and BELL buttons depressed.
Using your other hand turn the speed control knob up or down to adjust the volume to your prefer-
ence. Release the WHISTLE and BELL buttons to exit volume adjustment mode.

Also, this is pre-Bluetooth AKA early Lionchief plus RF only, so before someone mentions using the app, unless you have an orange universal remote in bridge mode- you won't be able to use the Lionchief app with this series of engine.

Thanks to everyone who responded!

The helpful folks at Eastside Trains in Kirkland, WA fixed the issue, which was a compromised amplifier chip. They swapped in a new one from the parts bin and I am now back online

...and now it is dead...bricked. Argh