User guide

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PORTABLE WIRELESS PA SYSTEM PORTABLE WIRELESS PA SYSTEM
1. We recommend placing sound system between the target audience and the presenter, facing
the audience and raised above their heads using a speaker stand or table. This set-up helps
prevent the annoying feedback by keeping wireless & wired microphone users behind the
sound system. The internal power supply rechargeable, lead-acid batteries should be kept
fully charged. Always charge the system after use.
2. If you operate the system from an external AC power supply, then the internal battery supply
will charge at the same time, a very useful feature.
3. If the LED indicator on the power switch flashes after first turning the unit on or it starts to
do so during use on the internal DC supply (low battery warning), you should switch to the
AC power supply by using the AC power cord.
4. Before turning power on to the unit, please set all volume controls to their minimum level.
This prevents any loud 'thumps' at power on. Adjust the volume controls afterward.
5. Never place any microphone in front or close in front of the speaker otherwise damaging
feedback (both to the operators ears and the system) could occur.
6. The MA-707 features a retractable handle and wheels for easy transport. However, Do not
pull the unit for long distances or over uneven or rough surfaces. And, Do not pull it up or
down stairs. Vibration caused by long distance travel or travelling over uneven surfaces may
result in function failure not covered by warranty.
7. Please take care not to short out the speaker cables otherwise unwarranted damage could be
done to the system amplifier.
HELPFUL OPERATING TIPS TROUBLESHOOTING-PORTABLE PUBLIC ADDRESS
POSSIBLE CAUSE
Power switch is turned off
Rechargeable Battery is
discharged
Excessive wind noise or breath
“pops”
Rechargeable Battery is “dead”
Batteries level is low
Microphone too close or
directly in front of the speaker
Input signal too strong
Volume set too high
Microphone too far from sound
source (requiring the volume
to be turned up to
compensate)
Input Cable not shielded
Old or overused battery
Rechargeable Battery is
“dead”
Battery is not charged for
over 3~4 months
Battery is not charged for
over 3~4 months
Battery is fully charged
(CHARGE indicator is lit)
Volume turned down
Power switch is turned off
Volume set too high
No Sound or Faint Sound
From Speaker
Power Indicator Not On
Distorted Sound From
Speaker
Weak, Distorted Sound
Power Indicator Flickers
Excessive Hum or Noise
Shortened Battery Life
Battery CHARGE Indicator
Not Flickering when
plugged into AC Outlet
Excessive Feedback
PROBLEM
Speak closer to the microphone
or move microphone closer to
sound source
Adjust volume
Turn power switch on
Reduce volume
Turn power switch on
SOLUTION
Plug into AC outlet to recharge
Use windscreen on wireless &
wired microphones.
Replace battery and plug into
AC outlet to recharge
Plug into AC outlet to recharge
Move microphone away from
the speaker
Adjust input signals
Reduce volume
Use shielded cable
Recharge or replace battery
Replace battery
Recharge or replace battery
Recharge or replace battery
N/A