DAC mode on DX7 Pro

Can someone tell me how to set the Topping DX7 Pro to DAC mode. I am running it into an Ap0

You can access the settings menu by turning it off with the power switch in the back, then hold the power/standby button down on the front when you flip the switch back on at the same time.

From there the DAC/PRE mode switching should be in the list of options.


Thanks for taking the time to answer. This is what I was missing so I should be able to set it correctly.