Hk-audio LUCAS SMART User Manual download pdf (Page 10)

L.U.C.A.S SMART Manual 1.0

8 Troubleshooting

The Power On LED and the mains switch do not

light up red after you switch the system on.

• Check if the power cord is plugged into the

Mains Input.

• Check if the mains power supply is actually

providing current.

• Check if L.U.C.A.S SMART’s fuse is defective.

Replace only with another fuse of the same type

and rating as specified.

The Power On LED and the Power switch light up

red, but no sound is coming from the cabinets.

• Check the cables that you connected to the Line In,

Mic In and Aux ports.

• Check if the signal sources (mixer, keyboard,

CD player) are-on.

• Are the Gain knobs turned up?

• Check the loudspeaker cables for damage.

• Check if the Speakon

connectors plugged into

the Satellite Left and Satellite Right sockets are en-

gaged all the way (rotated fully to the right). Only

then will an electrical connection be established.

The subwoofer’s bass response sounds thin or weak.

• Check the setting of the Subwoofer Level knob.

Adjust the volume of the subwoofer using the

Subwoofer Level knob until you get the kind of

bottom end you want to hear.

The signal sounds distorted.

• Check the LED displays on your mixer. They should

not be constantly in the red. If necessary, back off

the volume at the mixer.

• If the LED displays on your mixer are in the green,

turn down the L.U.C.A.S SMART’s Gain knob (Line

In or Aux In).

• Observe the LEDs of the Limiter Status displays on

L.U.C.A.S SMART’s control panel. If the yellow LED

lights up continuously, the integrated protective

functions are working at full capacity. In this in-

stance, do not turn the volume level up any higher.

Annoying hum

• Check the cables that you are using to connect the

signal source to L.U.C.A.S SMART. Replace damaged

cables.

• If you cannot pinpoint the cause of the hum, press

the Ground Lift switch. This should remedy the

problem in most cases.

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Hk-audio LUCAS SMART User Manual Page 10

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