volume on N scale Atlas trainmaster

[propmeup1]

Good Morning, simple question in need of simple answer. I have a new Atlas n scale trainmaster. The volume from factory was ok but since I had an issue I had to reset the decoder and suddenly the volume is sky high.  What CV is the main volume control please. Like Soundtraxx it is CV 128 for the overall main.   But this doesn't have  a soundtraxx which I'm I can deal with.

I just need that one CV to lower it and not worry about adjusting other.

Thank you,
KTB

[tehachapifan]

CV63 with a valid range between 1 & 192 with a default 180.

[propmeup1]

Perfect, thank you,
KTB