Faq - Montarbo WIND PRO Series Owner's Manual

Faq.

Sympton
No sound
No sound. The speaker is connected to
working AC power but won't come on.
No sound. Speaker comes on.
Signal sounds distorted and very loud,
PEAK light is lit most of the time.
Signal sounds distrorted even at modera-
te volumes, LIMIT light is not lit.
Lots of hiss in the sound, the mixer
controls are at very low settings.
Noise or hiss heard at output.
Hum or Buzz that increases or decreases
when the mixer level controls are moved.
Hum or Buzz
Likely Cause
Speaker not connected to active
AC power.
Speaker power cable is faulty or
improperly connnected.
Signal source (mixer, instrument,
etc ) is not sending.
Faulty cables and connections
Excessive input signal, trying to
exceed the capabilities of the
speakers.
Mixer or other source is overdriven.
Improper gain structure
Noisy source device
Improper A/C ground or faulty equi-
pment connected to mixer input.
Faulty cable between source equip-
ment and mixer.
Improper A/C grounding, ground
loops
Excessively long unbalanced cable
run.
Improper system gain structure
What to do
Verify that speaker is connected and that the circuit is on
• Re-seat the power cable at both ends.
• Substitute a known-good power cable.
• Check VU meters on the source mixer.
• Verify that the tape or CD is playing.
• Use headphones to verify that the instrument is actually sending an audio signal
• Disconnect and re-seat signal cables.
• Replace suspected cable withn a known-good cable
• Reduce the output level of the source.
• Turn down the level controls on the speaker.
• Use additional WINDP PRO speakers.
Review the Owner's Manual for your mixer and adjust controls as needed
• Input sensitivity (gain)
• Channel faders
• Master faders Once this is done, review the instructions in the Quick Start section
of this guide.
• Reduce the level settings at speaker. review the Owner's Manual for your mixer and
adjust controls as needed.
• Input sensitivity (gain)
• Channel faders
• Master fader
Disconnect the devices that are connected to your speaker one at a time. If the npoise
goes away, the problme is with the source or the connectiong cable.
Disconnect or mute channels one at a time to isolete the problem. Refer to the ow-
ner's manual of the faulty equipment for troubleshooting help.
Substitute a Known-good cable for the suspected faulty cable.
• 'Lift' the audio ground by usign an XLR/F to XLR/M adapter on one end.
• Re-route audio cables away from AC power and lighting cables.
• Use the balanced outputs (if available) of your mixer or source equipment to drive
your WIND PRO speakers.
• Use a "DI Box" (direct injection) boc to convert your undbalanced equipment output
to a balanced output.
Reduce the INPUT level controls and increase the output level of your source devices
Series WIND PRO A | Owner's manual | 21