Programming GS4

[ToddW]

I have a GS4 4-8-4 - SP Daylight #4449 RAILFAN (DCC SOUND VALUE) locomotive and a DCS52 Zephyr Express controller.  I was trying to change the locomotive default address (3) to something different.  Afterwards, the train had lights and sound, but wouldn't move, no matter which address I used. I tried setting it back to factory defaults using CV8=8.  The train runs but now I have no sound.  I have not been able to find much online about the default train and sound settings.  I have also read that the number of times the light flashes on the locomotive can indicate it's status, but I have not been able to find any documentation on that either.  Any help would be appreciated.

Thanks,
Todd

[trainman203]

Have you tried F8?

Check the value of CV 128 the master volume.  If it is zero, try sending it at 100.

 I cannot believe that these solutions above are not somewhere in an online manual for the locomotive or the controller, very peculiar