7
MX3
POWERED STUDIO MONITOR PAIR
If you can’t hear any sound...
• Repeat the steps in the Troubleshooting section above before
continuing to the next steps.
• Check to see if all other audio devices using the same AC
outlet are still operating.
• Make sure that:
• The audio source cable is plugged into both the source
output and the monitor input.
• The volume knobs of the monitors are turned up.
• The signal source (e.g. mixing console, work station, CD
player, etc.) is turned up to a level that can properly send a
signal to the monitors.
• Check to see if one of the monitors is working. Exchange
the audio input cable from the non-working monitor to the
working unit. This will determine whether it’s really the
monitor, a faulty cable, or some other glitch in the audio chain.
• If the monitor is still not responding, it should be returned
to the dealer that you purchased it from, or to Sterling, for
servicing.
If the monitor suddenly stops working...
• Turn the outputs of your sound system down or off.
• Repeat the steps in the Troubleshooting sections above
before continuing to the next steps.
• Carefully check to see if the amplifier’s back plate is hot. If the
monitor has been running at its highest power output for an
extended period of time, it could be that the unit has become
overheated and the protection circuitry has shut the system
down momentarily. Your Sterling MX5 and MX8 monitors
provide maximum circuitry protection against AC power
surges, amplifier overdrive, and overheating of the amplifiers.
Turn the monitor off then wait 30 minutes to allow the back
plate to cool down. Turn the power switch back on.
• Increase the volume to check for normal operation.
• If the monitor is still not responding, please contact the
dealer you purchased it from or Sterling Customer Service
(1-888-621-2154 or [email protected]).
The sound quality changes...
• Repeat the steps in the Troubleshooting section above before
continuing to the next steps.
• Disconnect the signal cable at the input of the monitor. With
power on, place your ear close to each driver (tweeter/
woofer) and listen for noise (i.e. a slight hiss or hum). If there’s
absolutely no sound whatsoever, it could be that one or more
of the drivers (woofer, tweeter or both) is at fault. It’s also
possible that the problem lies somewhere in the electronics.
• Play some non-distorted source material at a low volume.
Carefully cover the tweeter (to block the sound) without
touching the diaphragm. Is the woofer producing a clean
sound? If there is not a clear tonal quality, or any sound at all,
then the woofer probably needs to be replaced.
• Cover the woofer so you can hear mostly the tweeter. Is the
tweeter producing a clear sound? If there is not a clear tonal
quality, or any sound at all, then the tweeter probably needs
to be replaced.
• Once you have a better idea of what may be at fault
please call our customer service department. We will help
you determine the best solution to correct your monitors.
Sterling Customer Service can be reached at 1-888-621-
2154 or [email protected].
The monitor hisses, hums or makes other loud noises...
• Here are some suggestions that will help you eliminate these
undesirables from your system:
• Ensure that the AC power is matched to the operating
voltage requirements.
• Make sure that the power cord is plugged snugly into the
IEC socket on the rear of the monitor.
• Check the connections between the signal source and
the monitor. The Sterling MX5 and MX8’s XLR and TRS
connectors offer completely balanced connectivity. Make
sure the output of your audio system is balanced and that
you are using balanced cables. While unbalanced RCA
connections are also available, this connection format is
more susceptible to noise.
• All audio equipment should use the same ground point. If
parts of your audio system are connected to different AC
outlets in your room, this may result in an audible hum as
a result of small differences in voltage between different
connected circuits. Check all other devices using the same
AC output in the building such as dimmers, neon signs, TV
screens, and computer monitors. These devices should
not be using the same circuit.
Summary of Contents for MX3
Page 1: ...Input OWNER S MANUAL ...
