1. Press Misc key to select Misc page.
2. Toggle up or down cursor to select CLK source and switch it to Digital.

Input signals into the 168RC:

1. In I/S/P mode set the input of channel 1. to Dig 1 and the input if channel 2 to Dig 2
2.In the Bus assign mode, turn Master on for channels 1 and 2.

Selecting the signal to be monitored:
0. Select the Exe. Bus I/O key to select input mode and turn MR and ML to on for the channels you need to monitor.
1. Press the (send master) key, the LED will be illuminated and then use the up and down cursors to select the monitor page. Press knob 1 to turn master on.
2. Set the tape in monitor switch to Monitor.
3. Bring up the master fader and signal should be present.