Sorry to bump this old thread but wanted to update.
I dug the old jukebox out of my storage closet and decided to mess with it, since winter is right around the corner and outside work has died down a bit.
It still fired up but i noticed I was getting the low voltage warning during boot up. (Lightning bolt in upper right of screen.)
Then I remembered I was seeing this when I shelved the jukebox many moons ago.
I decided to see what is going on with that.
After much troubleshooting and re-wiring I traced it back to the ATXRaspi switch circuit I was using instead of the mausberry switch.
I searched online for a solution and although I saw some testimonials where people was experiencing this, I couldnt find any fix.
So I ripped a mausberry switch circuit out of an older project and replaced the ATXRaspi with the mausberry..
After setup (I had to refresh my memory), the RPi3 fires up with no warnings.
So since I recommended the ATXRaspi switch earlier, I must say now that I do not recommend it.
Now it may work on an earlier RPi model, and they may have fixed that issue by now (I have version R3), but I wont be wasting anymore money on it, unless someone tells me they tried a newer version with good results.
Now back to why I tried the ATXRaspi and the original subject of this thread.
The mausberry site shows all the switches as sold out, and they have yet to respond to any of my requests. Have they closed shop? Be nice if they would explain a little on their web site.
Anyway, my interest in the juke box has re spawned.
I ordered a cheap encoder from Adafruit that i plan to use as volume control (
http://adafru.it/4991)
I am still playing around with it but it does look promising.
Now, whats the deal with the mausberry site???