I have a 4-6-6-4 MTH Challenger engine with Protosound 2.0, Model #20-3170-1. It operates beautifully. On the remote this evening I pressed button #4 on the keypad to turn off the engine sounds. The sounds went off (although I could still operate the bell and whistle with their individual handheld controls). When I pressed button #4 to turn back on the engine sounds, I was unable to restart the sounds. I tried the same thing on another PS 2.0 engine, and I was able to turn off the sound and then successfully turn it back on. I am charging the 4-6-6-4 PS 2.0 battery now with the MTH external charger, to see if a fully charged battery will help the issue. Anybody else have any ideas as to how I can get the sound going again? The engine and tender work perfectly in all other respects.
Thanks,
Marc