En
gl
is
h
ment hums despite this precaution, the Ground Lift
switch can be a great help.
CAUTION: Never tape over the plug’s ground
terminalæthis endangers lives!
6 ACTOR DX Accessories
HK AUDIO ACTOR DX Tilt-Unit
Designed to hold the ACTOR DX mid/high unit,
the tilt unit is placed on the subwoofer, with the
DuoTilt™ fitting offering a choice of 7.5° or 15°
angles.
HK AUDIO Dust Covers for ACTOR DX
This set comprises subwoofer and satellite covers.
Extremely tear resistant, water repellant and thickly
padded, these covers afford lasting protection for
the ACTOR DX system during transport.
HK AUDIO ACTOR DX Rigging Frame
Easy-to-mount U bracket for attaching half-couplers,
TV spigots and clamps.
To learn more about original HK AUDIO accessories,
talk to your HK AUDIO dealer or visit
www.hkaudio.com.
7 Troubleshooting
The Power On LED or display does not light up red
when switched on.
1 Check if the power cord is plugged into the Mains
Input.
2 Check if the mains power supply is providing
current.
3 Check if the house circuit breaker has tripped.
The Power On LED lights up red, but the cabinets
produce no sound.
1 Check the cords connected to the inputs.
2 Check if the signal sources (mixer, keyboard, CD
player, etc.) are on.
3 Are the Gain knobs turned up?
4 Check the speaker cords for damage.
5 Check if the Speakon“ connectors are locked
(twisted to the right). An electrical connection
is established only if their locking mechanism
engages.
The subwoofer’s low frequency output is weak.
1 Check the setting of the Subwoofer Level knob.
Set Sub A’s volume to the desired level using the
Subwoofer Level.
2 Check if the system configuration "Top Only" is
selected on the system controller. This mutes the
subwoofers.
The signal sounds distorted.
1 Check the LED displays on your mixer. Ensure they
are not constantly in the red. If necessary, back off
the volume at the mixer.
2 If the LED displays on your mixer are in the green,
but the sound is still distorted, back off the Level
knobs on the ACTOR ADX 112 A enclosures.
3 Observe the Input Overload indicator and the
Limiter LEDs on the ACTOR DX mid/high units’
control panels. It is acceptable for these to
flash yellow from time to time, but under no
circumstances may the yellow LEDs illuminate
continuously. If they do, turn down the Level kn-
obs. Check also the Input Sensitivity setting.
If the signal is saturated, set it to +0 dB.
Annoying hum
1 Check the cords connecting the signal source to
ACTOR DX. Replace damaged cords.
2 If you cannot pinpoint the cause of the humming,
engage Ground Lift. This should remedy the
problem in most cases.
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