(1) Is the [CD, PHONO/LINE] input selector switch set to the appropriate position? Switch the channel’s input source using the [CD, PHONO/LINE] input selector switch. For details, see “Basic operations (mixer section)” in the operating instructions.

(2) Are the [TRIM] control, channel faders, crossfader and [MASTER LEVEL] control set to appropriate positions? Set the [TRIM] control, channel faders, crossfader and [MASTER LEVEL] control to appropriate positions, For details, see “Basic operations (mixer section)” in the operating instructions.

(3) Are the connected components and amplifiers properly set? Switch the external inputs of the components and amplifiers and set the volume properly.

(4) Are connection cables properly connected? Connect the connection cables properly. For details, refer to “Connecting the input/output terminals” in the operating instructions.

(5) Are terminals or plugs dirty? Wipe any dirt off terminals and plugs before connecting them.