Troubleshooting - iKEY-AUDIO MV2 Series Bedienungshandbuch

Troubleshooting

PROBLEM: THERE IS NO POWER, CHECK:
• The power cord is plugged into both the IEC socket on
the rear panel of the unit and into the AC mains
• The AC mains voltage is matched to the operating volt-
age requirements. If the AC mains voltage is higher than
the iKEY Audio monitor is selected voltage it is possible
that the fuse needs to be replaced.
• The power light is illuminated on the front panel of the
Ikey audio. If not, turn the power switch OFF and check
the A/C mains fuse(s). NEVER USE A LARGER AMPER-
AGE FUSE THAN IS SPECIFIED! Turn the power switch
back on. The power light should illuminate.
• If a fuse change was needed and upon powering the
monitor back up the fuse(s) blow again, the monitor
needs to be returned to the dealer you purchased it from
or to IKEY AUDIO Monitor for servicing.
PROBLEM: THERE IS NO SOUND...
• Repeat steps in the previous 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.
• Ensure the audio source cable is plugged into both the
source output and the monitor input.
• Ensure the system gain pot is turned up fully clockwise
(+6 dB).
• Check that 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.
• 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 re-
turned to the dealer that you purchased it from or to IKEY
AUDIO for servicing.
8 Troubleshooting
PROBLEM: THE MONITOR STOPS WORKING...
• Turn the monitor send down or off.
• Repeat 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 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. The Ikey audio
monitor provides 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, it should be re-
turned to the dealer that you purchased it from or to IKEY
AUDIO for servicing.
PROBLEM: THE SOUND QUALITY CHANGES...
• Repeat steps in the previous troubleshooting section
above before continuing to the next steps. troubleshoot-
ing 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 is no sound whatsoever, it could be that
one or more of the drivers (woofer or tweeter or both)
is at fault. It's also possible that the problem lies some
where 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 produc-
ing 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
then call us and speak with someone in the service de-
partment. They will help you determine the best solution
to correct your monitors.
PROBLEM: THE MONITOR HISSES, HUMS OR MAKES
OTHER LOUD NOISES...
Here are some suggestions that will help you eliminate
these undesirable from your system:
• 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 Ikey audio's XLR and TRS connector is a
completely balanced system. If you're connecting an un-
balanced output to the monitor, be sure that you're using
PIN 2 for signal and have PIN 1 and PIN 3 tied together at
the source end.
• Refer to the Connecting the System section on page 7
of this manual to ensure that the AC mains is matched to
the operating voltage requirements.
• All audio equipment should use the same ground point.
Check all other devices using the same AC output in the
building like dimmers, neon signs, TV screens, and com-
puter monitors. These devices should not be using the
same circuit.