Hi Dan, welcome to the community 🙂
Have you touched the CH1 fader select on screen and turned up the fader using the rotary control so it sends the signal to the LR?
Have you checked out the Qu-Pac Channel Screen & Qu-Control tutorial video on our YouTube Channel?
You can find it here: https://youtu.be/t0kCfYwjxxc?list=PLq3_zC_Xz0Pgly7wY33Wr-yI_D2ztnlzM
In answer to your phantom power question in the other thread:
Phantom power is always off for a channel by default. This is to prevent hot-plugging mics while +48v is active.
To switch +48v on, connect a condenser mic or DI for example to the mic pre, then press and hold the on screen switch for approximately 2 seconds to activate. You’ll see the indicator next to the on screen switch turn red when it’s on.
Hope this helps. Let us know if you need more info.
Thanks.
Harry.