CDJ 900 Randomly Loses Sound

 As the title says, one of the CDJs randomly loses sound for a few minutes at a time and then comes back on. It doesn't fade out slowly, it just stops. The song will still be playing and the screen shows that it is, but unfortunately no sound. If i switch my mixer to phono on that channel and turn up the gain a bit, I can hear a faint sound of a track. I got a new RCA output board (DWX3023) thinking that mine was toast, but to no avail, the problem persisted the next day. I tested the CDJ by itself, so it was not linked to the other one. It does the same thing with USB stick AND with a CD in. Also, it seems to be doing earlier in the session (5 minutes in), and once it does it plays normally for hours.