Troubleshooting; Technical Specifications - HK Audio L.U.C.A.S 1000 Mode D'emploi

9 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 the circuit breaker tripped. If so, set the
Power On switch to the Off position and reset the
circuit breaker. Then switch the system on again.
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
Input Left and Right sockets.
• Check if the signal sources (mixer, keyboard,
CD player) are on.
• Are the Gain Left and Gain Right knobs turned up?
• Check the loudspeaker cables for damage.
• Check if the Speakon ® connectors plugged into the
Satellite Left and Satellite Right sockets are engaged
(rotated 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 Bass Level knob. Adjust
the volume of the subwoofer using the Bass Level
knob until you get the kind of bottom end you want
to hear.
The signal seems to be 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 L.U.C.A.S ® 1000's Gain Left and Gain
Right knobs.
• Observe the LEDs of the Limit Left, Limit Right and
Limit Bass limiter displays on L.U.C.A.S
control panel. These should light up red for no
more than a brief moment. Under no circumstances
may the red LEDs illuminate continuously. If this is
the case, turn down the Gain knobs.
Annoying hum
• Check the cables that you are using to connect the
signal source to L.U.C.A.S
cords.
• If you cannot pinpoint the cause of the hum, press
the Ground Lift switch. This should remedy the
problem in most cases.

10 Technical Specifications

see page 36
® 1000's
® 1000. Replace damaged
11