Have a 1-year old Lionel K-4 Legacy engine# 1361. The chuff sound mysteriously lowered in volume and is almost non existant. The other sounds such as bell and crew chatter are normal volume. Does anyone have any ideas?
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I usually find my chuff under the bed. Sometimes it likes to sleep there. 
Try resetting to factory settings. Don
Originally Posted by afflyerman:
Have a 1-year old Lionel K-4 Legacy engine# 1361. The chuff sound mysteriously lowered in volume and is almost non existant. The other sounds such as bell and crew chatter are normal volume. Does anyone have any ideas?
The best thing to do is a factory reset like don said and everything should come back. Look in the manual for how to do the reset.it hasen't failed me yet.
Alex
Thanks to all for your response but I tried the sound chip reset that came with the engine but it was unsuccessful. Is this the factory reset you are recommending?
Is it the cherry switch? I had a TMCC RS5 0-8-0 with a bad cherry swich, they can be replaced.
I think that what they were referring to was the reprogramming to restore features procedure, which I believe is set out at page 26 of this engine's manual. (This reads very much like resetting an engine's ID under TMCC, which is not something I had noticed about Legacy engines before.)
However, I have also found that the chuff sounds will fade out if the lower background sounds volume button (4 on CAB-1; same position on Legacy handheld) is inadvertently pressed and /or sticks in the down position after you have pressed the AUX 1 button. That might explain why the other sounds are normal. Try increasing the volume by pressing the volume up button above it (position 1) after pressing AUX 1 first.
I think that Hancock52 is probably correct. You may have accidentally turned the background sounds down.
Page 15 of your manual explains how to change the volume of these sounds. This can be a useful feature if you don't want the general locomotive sounds at full volume, but still wish to have the bell and horn/whistle at full power.
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I would start with the reprogramming just because that requires no disassembly.
I had this happen to me on another Legacy loco and it was the speaker enclosure that that had come loose and misaligned itself somehow (screws worked loose or something). While you have it apart for inspection you can also jumper around and thereby test if the cherry switch is bad.
Wow! the Aux1, volume key strokes fixed it. Thank you so much!
