Title: SiImpactUserManual_V1.4_screen_original.pdf
The physical input should be patched to an Input Channel, and that Input Channel should be controlled by a Control Channel.For example, by default (factory settings) Mic/Line Input 1 is patched to mono Input Channel CH 01, which is con- trolled by the Control Channel in Slot 1, Fader Layer A. The other default patches are listed at 5.2.You can check which Control Channel is controlling which Input Channel in the FADER SETUP menu (See 3.2.1).You can check which physical input is patched to an Input Channel by selecting the relevant Control Channel. The Input Patch menu item (INPUTS from main Touch Screen Menu) will show the currently patched physical input. See reference 5.1 for more patching detail.Is there anything on the meters?By checking the Input and Output path meters, you should be able to localise a problem to a large extent.